Initial commit of the recovered source code
This commit is contained in:
commit
7e5cc958f2
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Thanks to the following people for contributing to Inspekt3d:
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rekado
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----
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Patch to improve the build system.
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||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
<program> Copyright (C) <year> <name of author>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<http://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
|
|
@ -0,0 +1,43 @@
|
|||
(Only tested on Ubuntu 18.04 so far.)
|
||||
|
||||
Required software/libraries:
|
||||
|
||||
o Guile 2.2.1 or later
|
||||
Site: https://www.gnu.org/software/guile/
|
||||
License: LGPL 3+
|
||||
|
||||
o Guile-OpenGL 0.1.0
|
||||
Site: https://www.gnu.org/software/guile-opengl/
|
||||
License: LGPL 3+
|
||||
|
||||
* Inspekt3d requires Freeglut 3.
|
||||
|
||||
o Libfive
|
||||
Site: www.libfive.com
|
||||
License: LGPL 2.1+, GPL 2+
|
||||
|
||||
* For the best compatibility with Libfive, make sure to install it
|
||||
from the latest commit in the Libfive master branch.
|
||||
|
||||
Optional software/libraries:
|
||||
|
||||
o Emacs (recent version)
|
||||
Site: https://www.gnu.org/software/emacs/
|
||||
License: GPL 3+
|
||||
|
||||
o Geiser
|
||||
Site: http://www.nongnu.org/geiser/
|
||||
License: BSD 3-clause
|
||||
|
||||
Installation:
|
||||
|
||||
Inspekt3d uses the standard Autotools build system, so:
|
||||
|
||||
./bootstrap
|
||||
./configure --prefix=/usr
|
||||
sudo make install
|
||||
|
||||
will install Inspekt3d to the '/usr' prefix.
|
||||
|
||||
You can test the installation with:
|
||||
guile -l ./examples/sphere.scm
|
|
@ -0,0 +1,56 @@
|
|||
# Makefile.am
|
||||
#
|
||||
# Copyright 2018 Kavalogic, Inc.
|
||||
#
|
||||
# This file is part of Inspekt3d.
|
||||
#
|
||||
# Inspekt3d is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation, either version 3 of the
|
||||
# License, or (at your option) any later version.
|
||||
#
|
||||
# Inspekt3d is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
# Lesser General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public
|
||||
# License along with this program. If not, see
|
||||
# <http://www.gnu.org/licenses/>.
|
||||
|
||||
# specify not GNU
|
||||
AUTOMAKE_OPTIONS = foreign
|
||||
|
||||
moddir=$(prefix)/share/guile/site/@GUILE_EFFECTIVE_VERSION@
|
||||
godir=$(libdir)/guile/@GUILE_EFFECTIVE_VERSION@/ccache
|
||||
|
||||
GOBJECTS = $(SOURCES:%.scm=%.go)
|
||||
|
||||
nobase_mod_DATA = $(SOURCES) $(NOCOMP_SOURCES)
|
||||
nobase_go_DATA = $(GOBJECTS)
|
||||
|
||||
# Make sure source files are installed first, so that the mtime of
|
||||
# installed compiled files is greater than that of installed source
|
||||
# files. See
|
||||
# <http://lists.gnu.org/archive/html/guile-devel/2010-07/msg00125.html>
|
||||
# for details.
|
||||
guile_install_go_files = install-nobase_goDATA
|
||||
$(guile_install_go_files): install-nobase_modDATA
|
||||
|
||||
GUILE_WARNINGS = -Wunbound-variable -Warity-mismatch -Wformat
|
||||
SUFFIXES = .scm .go
|
||||
.scm.go:
|
||||
./compile-env $(GUILD) compile $(GUILE_WARNINGS) -o "$@" "$<"
|
||||
|
||||
SOURCES = \
|
||||
inspekt3d/camera.scm \
|
||||
inspekt3d/gl-missing.scm \
|
||||
inspekt3d/library.scm \
|
||||
inspekt3d/shader.scm \
|
||||
inspekt3d/viewer.scm \
|
||||
${NULL}
|
||||
|
||||
CLEANFILES = $(GOBJECTS)
|
||||
|
||||
EXTRA_DIST = $(SOURCES) $(NOCOMP_SOURCES)
|
||||
EXTRA_DIST += COPYING INSTALL README.md examples compile-env.in
|
|
@ -0,0 +1,30 @@
|
|||
# Inspekt3d
|
||||
|
||||
Lightweight 3D viewer for
|
||||
[Libfive](https://www.github.com/libfive/libfive) written in Guile
|
||||
Scheme
|
||||
|
||||
The Inspekt3d viewer can be used interactively with a REPL (for example Geiser in Emacs).
|
||||
|
||||
## Usage
|
||||
|
||||
Code to display a sphere:
|
||||
|
||||
(use-modules (inspekt3d viewer)
|
||||
(libfive shapes) (libfive kernel) (libfive vec)
|
||||
(libfive transforms) (libfive csg))
|
||||
|
||||
(make-viewer)
|
||||
;;; shape bounds resolution
|
||||
(set-shape (sphere 0.5) '((-1 . 1) (-1 . 1) (-1 . 1)) 10)
|
||||
|
||||
The ```make-viewer``` function creates a (singleton, for now) display
|
||||
window for the libfive shape in its own thread. The ```set-shape
|
||||
shape bounds resolution``` function can be used multiple times from
|
||||
the REPL to change the shape to be viewed.
|
||||
|
||||
This is a more complicated model:
|
||||
|
||||
![Turtle Model](./turtle.png)
|
||||
|
||||
[Turtle Model Source](./examples/turtle.scm)
|
|
@ -0,0 +1,38 @@
|
|||
#!/bin/sh -x
|
||||
|
||||
# bootstrap - create files in the "auto" tool-chain
|
||||
#
|
||||
# Copyright 2018 Kavalogic, Inc.
|
||||
#
|
||||
# This file is part of Inspekt3d.
|
||||
#
|
||||
# Inspekt3d is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation, either version 3 of the
|
||||
# License, or (at your option) any later version.
|
||||
#
|
||||
# Inspekt3d is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
# Lesser General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public
|
||||
# License along with this program. If not, see
|
||||
# <http://www.gnu.org/licenses/>.
|
||||
|
||||
# create makefile.in for top level and subdirectories
|
||||
aclocal
|
||||
# (-Woverride flag is to catch user redefinitions of automake rules/variables)
|
||||
automake --add-missing -Woverride -Werror
|
||||
# creates configure script
|
||||
autoconf
|
||||
|
||||
# Notes:
|
||||
# -----
|
||||
# Other "auto" tools:
|
||||
#
|
||||
# autoreconf - remake build system files
|
||||
# autoscan - used to create a starter configure.ac or validates existing one
|
||||
# -----
|
||||
# autoconf --trace - scans configure.ac
|
||||
# -----
|
|
@ -0,0 +1,37 @@
|
|||
#!/bin/sh
|
||||
|
||||
# Makefile.am
|
||||
#
|
||||
# Copyright 2018 Kavalogic, Inc.
|
||||
#
|
||||
# This file is part of Inspekt3d.
|
||||
#
|
||||
# Inspekt3d is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation, either version 3 of the
|
||||
# License, or (at your option) any later version.
|
||||
#
|
||||
# Inspekt3d is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
# Lesser General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public
|
||||
# License along with this program. If not, see
|
||||
# <http://www.gnu.org/licenses/>.
|
||||
#
|
||||
# From the Guile-OpenGL 0.1.0 source file:
|
||||
# ./env.in
|
||||
|
||||
GUILE_LOAD_PATH=@abs_top_srcdir@:$GUILE_LOAD_PATH
|
||||
if test "@abs_top_srcdir@" != "@abs_top_builddir@"; then
|
||||
GUILE_LOAD_PATH=@abs_top_builddir@:$GUILE_LOAD_PATH
|
||||
fi
|
||||
GUILE_LOAD_COMPILED_PATH=@abs_top_builddir@:$GUILE_LOAD_PATH
|
||||
PATH=@abs_top_builddir@/bin:$PATH
|
||||
|
||||
export GUILE_LOAD_PATH
|
||||
export GUILE_LOAD_COMPILED_PATH
|
||||
export PATH
|
||||
|
||||
exec "$@"
|
|
@ -0,0 +1,56 @@
|
|||
dnl -*- Autoconf -*-
|
||||
|
||||
dnl configure.ac
|
||||
dnl
|
||||
dnl Copyright 2018 Kavalogic, Inc.
|
||||
dnl
|
||||
dnl This file is part of Inspekt3d.
|
||||
dnl
|
||||
dnl Inspekt3d is free software: you can redistribute it and/or modify
|
||||
dnl it under the terms of the GNU General Public License as
|
||||
dnl published by the Free Software Foundation, either version 3 of the
|
||||
dnl License, or (at your option) any later version.
|
||||
dnl
|
||||
dnl Inspekt3d is distributed in the hope that it will be useful, but
|
||||
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
dnl Lesser General Public License for more details.
|
||||
dnl
|
||||
dnl You should have received a copy of the GNU General Public
|
||||
dnl License along with this program. If not, see
|
||||
dnl <http://www.gnu.org/licenses/>.
|
||||
|
||||
dnl *** Process this file with autoconf to produce a configure script. ***
|
||||
|
||||
AC_INIT([Inspekt3d], [0.0.0],, [Inspekt3d], [https://www.github.com/sjm-tl-gh/inspekt3d])
|
||||
dnl AC_CONFIG_SRCDIR is a file found in the source tree as a check
|
||||
AC_CONFIG_SRCDIR([inspekt3d])
|
||||
AM_INIT_AUTOMAKE
|
||||
|
||||
AC_COPYRIGHT([Copyright 2018 Kavalogic, Inc. See the file COPYING for licensing and distribution terms.])
|
||||
AH_TOP([/* Copyright 2018 Kavalogic, Inc. See the file COPYING for licensing and distribution terms. */])
|
||||
|
||||
GUILE_PKG([3.0 2.2])
|
||||
GUILE_PROGS
|
||||
if test "x$GUILD" = "x"; then
|
||||
dnl Do an alternate check for 'guild'
|
||||
AC_CHECK_PROG([GUILD], guild, guild)
|
||||
if test "x$GUILD" = "x"; then
|
||||
AC_MSG_ERROR(['guild' binary not found; please check your guile-3.0 2.2 installation.])
|
||||
fi
|
||||
fi
|
||||
|
||||
PKG_CHECK_MODULES([LIBFIVE], [libfive],
|
||||
[PKG_CHECK_VAR([LIBFIVE_GUILE_LIBDIR], [libfive], [libdir],
|
||||
[],
|
||||
[AC_MSG_ERROR([Could not determine libdir for libfive.])])],
|
||||
[AC_MSG_ERROR([Guile bindings for libfive are missing; please install them.])])
|
||||
|
||||
GUILE_MODULE_AVAILABLE([have_guile_opengl], [(gl)])
|
||||
if test "x$have_guile_opengl" != "xyes"; then
|
||||
AC_MSG_ERROR([Guile OpenGL is missing; please install it.])
|
||||
fi
|
||||
|
||||
AC_CONFIG_FILES([Makefile])
|
||||
AC_CONFIG_FILES([compile-env], [chmod +x compile-env])
|
||||
AC_OUTPUT
|
|
@ -0,0 +1,317 @@
|
|||
#| rocking-horse.scm
|
||||
|
||||
Copyright 2018 Kavalogic, Inc.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
(1) Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
(2) Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in
|
||||
the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
|
||||
(3) The name of the author may not be used to
|
||||
endorse or promote products derived from this software without
|
||||
specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
||||
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|#
|
||||
|
||||
(use-modules (inspekt3d viewer)
|
||||
(libfive shapes) (libfive kernel) (libfive vec)
|
||||
(libfive transforms) (libfive csg))
|
||||
|
||||
(define (make-horse-shape)
|
||||
(let* (;;
|
||||
;; Body
|
||||
;;
|
||||
(body-length 1)
|
||||
(body-width (* 1/2 body-length))
|
||||
(body-thickness (* 1/12 body-length))
|
||||
(body-cutout-circle-radius (/ body-length 2))
|
||||
(body-cutout-circle (circle body-cutout-circle-radius
|
||||
#[(/ body-length 2) 0]))
|
||||
(body-cutout-circle-offset (+ body-cutout-circle-radius
|
||||
(/ body-width 4)))
|
||||
(body-rounding-factor 1/8)
|
||||
(body (rotate-x
|
||||
(extrude-z
|
||||
(difference
|
||||
(rounded-rectangle #[0 (- (/ body-width 2))]
|
||||
#[body-length (/ body-width 2)]
|
||||
body-rounding-factor)
|
||||
(move body-cutout-circle
|
||||
#[0 body-cutout-circle-offset 0])
|
||||
(move body-cutout-circle
|
||||
#[0 (- body-cutout-circle-offset)]))
|
||||
(- (/ body-thickness 2))
|
||||
(/ body-thickness 2))
|
||||
(/ pi 2)))
|
||||
;;
|
||||
;; Legs
|
||||
;;
|
||||
(leg-length (* 2/3 body-length))
|
||||
(leg-radius (* 3/100 body-length))
|
||||
(leg-angle (/ pi 8))
|
||||
(leg (cylinder-z leg-radius leg-length))
|
||||
(leg-offset-x (+ leg-radius 1/10))
|
||||
(leg-offset-y (- (/ body-width 2) leg-radius 1/10))
|
||||
;;
|
||||
(legs (rotate-x
|
||||
(union
|
||||
(move (rotate-x leg leg-angle)
|
||||
#[leg-offset-x (- leg-offset-y) 0])
|
||||
(move (rotate-x leg (- leg-angle))
|
||||
#[leg-offset-x leg-offset-y 0])
|
||||
(move (rotate-x leg leg-angle)
|
||||
#[(- body-length leg-offset-x) (- leg-offset-y) 0])
|
||||
(move (rotate-x leg (- leg-angle))
|
||||
#[(- body-length leg-offset-x) leg-offset-y 0]))
|
||||
(/ pi 2)))
|
||||
;;
|
||||
;; Rockers
|
||||
;;
|
||||
(rocker-radius (* 5/2 body-length))
|
||||
(rocker-length (* body-length 8/5))
|
||||
(rocker-width (* 3 leg-radius))
|
||||
(rocker-thickness (* 3 leg-radius))
|
||||
(rocker-half-angle
|
||||
(asin (/ (/ rocker-length 2) rocker-radius)))
|
||||
(outer-rocker-circle (circle rocker-radius))
|
||||
(inner-rocker-circle (circle (- rocker-radius rocker-width)))
|
||||
(rocker-intersection-triangle
|
||||
(let* ((iso-side-length (* 2 rocker-radius))
|
||||
(offset-x (* iso-side-length (sin rocker-half-angle)))
|
||||
(offset-y (- (* iso-side-length (cos rocker-half-angle)))))
|
||||
(triangle #[0 0] #[(- offset-x) offset-y] #[offset-x offset-y])))
|
||||
(rocker-end-radius (* (/ rocker-width 2) 5/4))
|
||||
(rocker-end-offset-y (+ (- rocker-radius)
|
||||
(- rocker-width rocker-end-radius)))
|
||||
(rocker-end (circle rocker-end-radius #[0 rocker-end-offset-y]))
|
||||
(right-rocker-end (rotate-z rocker-end rocker-half-angle))
|
||||
(left-rocker-end (rotate-z rocker-end (- rocker-half-angle)))
|
||||
(rocker-profile (union (intersection
|
||||
(difference outer-rocker-circle
|
||||
inner-rocker-circle)
|
||||
rocker-intersection-triangle)
|
||||
left-rocker-end
|
||||
right-rocker-end))
|
||||
(rocker-offset-x (/ body-length 2))
|
||||
(rocker-offset-y (+ (* leg-length
|
||||
(cos leg-angle)) ; adjust for leg angle
|
||||
(/ (- rocker-radius ; adjust for rocker "curl"
|
||||
(* rocker-radius
|
||||
(cos rocker-half-angle))) 2)
|
||||
(/ rocker-width 2))) ;adjust for rocker width
|
||||
(rocker-offset-z (+ (* leg-length (sin leg-angle))
|
||||
leg-offset-y)) ; legs rotated, use y offset
|
||||
;;
|
||||
(rocker (move (extrude-z rocker-profile
|
||||
(- (/ rocker-thickness 2))
|
||||
(/ rocker-thickness 2))
|
||||
#[rocker-offset-x
|
||||
(- rocker-radius rocker-offset-y)
|
||||
0]))
|
||||
(left-rocker (move rocker #[0 0 (- rocker-offset-z)]))
|
||||
(right-rocker (move rocker #[0 0 rocker-offset-z]))
|
||||
|
||||
(rocker-rod-radius (/ leg-radius 3/2))
|
||||
(rocker-rod-offset-z (+ rocker-offset-z (/ rocker-thickness 4)))
|
||||
(rocker-rod (cylinder-z rocker-rod-radius
|
||||
(* 2 rocker-rod-offset-z)
|
||||
#[0
|
||||
rocker-end-offset-y
|
||||
(- rocker-rod-offset-z)]))
|
||||
(front-rocker-rod (move (rotate-z rocker-rod rocker-half-angle)
|
||||
#[rocker-offset-x
|
||||
(- rocker-radius rocker-offset-y)
|
||||
0]))
|
||||
(back-rocker-rod (move (rotate-z rocker-rod (- rocker-half-angle))
|
||||
#[rocker-offset-x
|
||||
(- rocker-radius rocker-offset-y)
|
||||
0]))
|
||||
;;
|
||||
(rocker-support-length (* 3 leg-radius))
|
||||
(rocker-support-width (* (/ rocker-width 2) 11/10))
|
||||
(rocker-support (box #[(- (/ rocker-support-length 2))
|
||||
(- (/ rocker-support-width 2))
|
||||
(- (+ rocker-offset-z (/ rocker-thickness 2)))]
|
||||
#[(/ rocker-support-length 2)
|
||||
(/ rocker-support-width 2)
|
||||
(+ rocker-offset-z (/ rocker-thickness 2))]))
|
||||
;;
|
||||
(rocker-support-offset-y (+ (- rocker-offset-y)
|
||||
rocker-thickness
|
||||
1/50))
|
||||
;;
|
||||
(front-rocker-support (move rocker-support
|
||||
#[(- body-length leg-offset-x)
|
||||
rocker-support-offset-y
|
||||
0]))
|
||||
(back-rocker-support (move rocker-support
|
||||
#[leg-offset-x
|
||||
rocker-support-offset-y
|
||||
0]))
|
||||
;;
|
||||
(rocker-assembly (union right-rocker
|
||||
left-rocker
|
||||
front-rocker-support
|
||||
back-rocker-support
|
||||
front-rocker-rod
|
||||
back-rocker-rod))
|
||||
;;
|
||||
;; Neck
|
||||
;;
|
||||
(neck-length (* 7/24 body-length))
|
||||
(neck-width (* 1/2 body-length))
|
||||
(neck-angle (/ pi 10))
|
||||
(neck-thickness (* 2/3 body-thickness))
|
||||
;; shear-x-y shape #[x0 y0] height offset [base-offset]
|
||||
(neck-profile (shear-x-y
|
||||
;; taper-x-y shape #[x0 y0] height scale [base-scale]
|
||||
(taper-x-y
|
||||
(rectangle #[(- (/ neck-length 2))
|
||||
(- (/ neck-width 2))]
|
||||
#[(/ neck-length 2)
|
||||
(/ neck-width 2)])
|
||||
#[0 (- (/ neck-width 2))] neck-width 1/2 1)
|
||||
#[0 (- (/ neck-width 2))] neck-width
|
||||
(* neck-length (/ neck-angle (/ pi 4))) 0))
|
||||
(neck (move
|
||||
(extrude-z neck-profile
|
||||
(- (/ neck-thickness 2))
|
||||
(/ neck-thickness 2))
|
||||
#[(- body-length (/ neck-length 2))
|
||||
(+ (/ neck-width 2) (/ body-thickness 4))
|
||||
0]))
|
||||
;;
|
||||
;; Head
|
||||
;;
|
||||
(head-circle-radius (* 1/8 body-length))
|
||||
(nose-circle-radius (/ head-circle-radius 2))
|
||||
(muzzle-length (* 6/5 neck-length))
|
||||
(head-thickness (* 1 body-thickness))
|
||||
(head-angle (- (/ pi 8)))
|
||||
(bridle-hole-radius (/ leg-radius 2))
|
||||
;;
|
||||
(head-circle (circle head-circle-radius))
|
||||
(nose-circle (circle nose-circle-radius #[0 muzzle-length]))
|
||||
(bridle-hole-circle (circle bridle-hole-radius #[0 muzzle-length]))
|
||||
;; taper-x-y shape #[x0 y0] height scale [base-scale]
|
||||
(muzzle (taper-x-y
|
||||
(rectangle #[(- head-circle-radius) 0]
|
||||
#[head-circle-radius muzzle-length])
|
||||
#[0 0] muzzle-length
|
||||
(/ nose-circle-radius head-circle-radius) 1))
|
||||
;;
|
||||
(head-profile (difference (union head-circle
|
||||
muzzle
|
||||
nose-circle)
|
||||
bridle-hole-circle))
|
||||
;;
|
||||
(head-offset-x (- body-length 1/100))
|
||||
(head-main (move
|
||||
(rotate-z
|
||||
(extrude-z head-profile
|
||||
(- (/ head-thickness 2))
|
||||
(/ head-thickness 2))
|
||||
(+ (- (/ pi 2)) head-angle))
|
||||
#[head-offset-x neck-width 0]))
|
||||
;;
|
||||
(head-bar-height (* 7/8 body-width))
|
||||
(head-bar-radius (/ leg-radius 3/2))
|
||||
;;
|
||||
(head-bar (cylinder-z head-bar-radius
|
||||
head-bar-height
|
||||
#[head-offset-x
|
||||
neck-width
|
||||
(- (/ head-bar-height 2))]))
|
||||
;;
|
||||
(ear-length (* 1/4 head-circle-radius))
|
||||
(ear-thickness (* 3/8 head-thickness))
|
||||
(ear-cylinder-radius (* 7/8 head-circle-radius))
|
||||
(ear-cylinder (cylinder-z ear-cylinder-radius
|
||||
ear-thickness
|
||||
#[0 0 (- (/ ear-thickness 2))]))
|
||||
(ear (intersection
|
||||
(move ear-cylinder
|
||||
#[(- ear-length ear-cylinder-radius) 0 0])
|
||||
(move ear-cylinder
|
||||
#[(- ear-cylinder-radius ear-length) 0 0])))
|
||||
(ear-offset-x (+ head-offset-x (- (/ head-circle-radius 8))))
|
||||
(ear-offset-y (+ neck-width head-circle-radius))
|
||||
(ear-offset-z (/ head-thickness 2))
|
||||
(right-ear (move ear #[ear-offset-x ear-offset-y ear-offset-z]))
|
||||
(left-ear (move ear #[ear-offset-x ear-offset-y (- ear-offset-z)]))
|
||||
;;
|
||||
(head-assembly (union head-main
|
||||
left-ear
|
||||
right-ear
|
||||
head-bar))
|
||||
;;
|
||||
;; Tail
|
||||
;;
|
||||
(tail-radius (* body-length 5/16))
|
||||
(tail-width (* tail-radius 5/12))
|
||||
(tail-thickness neck-thickness)
|
||||
;;
|
||||
(tail-cylinder (cylinder-z tail-radius
|
||||
tail-thickness
|
||||
#[0 0 (- (/ tail-thickness 2))]))
|
||||
;;
|
||||
(tail-box-square-dimension (* tail-radius 11/10))
|
||||
(tail-box-thickness (* tail-thickness 11/10))
|
||||
;;
|
||||
(tail-box (box #[(- tail-box-square-dimension)
|
||||
(- tail-box-square-dimension)
|
||||
(- (/ tail-box-thickness 2))]
|
||||
#[(- tail-radius tail-width)
|
||||
tail-box-square-dimension
|
||||
(/ tail-box-thickness 2)]))
|
||||
;;
|
||||
(tail-base-x (- tail-radius tail-width))
|
||||
(tail-base-y (* tail-radius (sin
|
||||
(acos (/ tail-base-x tail-radius)))))
|
||||
(tail-upright (move (difference tail-cylinder tail-box)
|
||||
#[(- tail-base-x)
|
||||
(- tail-base-y)
|
||||
0]))
|
||||
;;
|
||||
(tail-angle (/ pi 4))
|
||||
(tail (move
|
||||
(rotate-z tail-upright (- tail-angle))
|
||||
#[2/100 (/ body-thickness 2) 0]))
|
||||
;;-;; ;;-;;
|
||||
;; ;;
|
||||
;; Complete horse ;;
|
||||
;; ;;
|
||||
;;-;; ;;-;;
|
||||
(rocking-horse
|
||||
(let* ((model
|
||||
(union body
|
||||
legs
|
||||
rocker-assembly
|
||||
neck
|
||||
head-assembly
|
||||
tail))
|
||||
(delta #[(- (/ body-length 2)) (/ rocker-offset-y 2) 0]))
|
||||
(move model delta))))
|
||||
rocking-horse))
|
||||
|
||||
(make-viewer)
|
||||
(set-shape (make-horse-shape) '((-2 . 2) (-2 . 2) (-2 . 2)) 100)
|
|
@ -0,0 +1,40 @@
|
|||
#| sphere.scm
|
||||
|
||||
Copyright 2018 Kavalogic, Inc.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
(1) Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
(2) Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in
|
||||
the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
|
||||
(3) The name of the author may not be used to
|
||||
endorse or promote products derived from this software without
|
||||
specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
||||
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|#
|
||||
|
||||
(use-modules (inspekt3d viewer)
|
||||
(libfive shapes) (libfive kernel) (libfive vec)
|
||||
(libfive transforms) (libfive csg))
|
||||
|
||||
(make-viewer)
|
||||
(set-shape (sphere 0.5) '((-1 . 1) (-1 . 1) (-1 . 1)) 10)
|
|
@ -0,0 +1,267 @@
|
|||
#| turtle.scm
|
||||
|
||||
Copyright 2018 Kavalogic, Inc.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
(1) Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
(2) Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in
|
||||
the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
|
||||
(3) The name of the author may not be used to
|
||||
endorse or promote products derived from this software without
|
||||
specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
||||
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|#
|
||||
|
||||
(use-modules (inspekt3d viewer)
|
||||
(libfive shapes) (libfive kernel) (libfive vec)
|
||||
(libfive transforms) (libfive csg))
|
||||
|
||||
(define +P+ 1.6180339889)
|
||||
|
||||
(define (half-space-pts point1 point2 point3)
|
||||
"half-space-pts point1 point2 point3
|
||||
(specify points in CW order for RH outward facing normal)"
|
||||
(let* ((V1 (- point1 point2))
|
||||
(V2 (- point3 point2))
|
||||
(X (cross V1 V2))
|
||||
(l (norm X))
|
||||
(N (/ X l))
|
||||
(pos (/ (+ point1 point2 point3) 3)))
|
||||
(half-space N pos)))
|
||||
|
||||
(define* (icosohedron #:optional (P +P+))
|
||||
(let* ((-P (- P))
|
||||
(2P (* 2 P))
|
||||
(-2P (- 2P))
|
||||
(-1-2P (- -1 2P))
|
||||
(1+2P (+ 1 2P))
|
||||
(2+P (+ 2 P))
|
||||
(-2-P (- -2 P))
|
||||
(3P (* 3 P))
|
||||
(-3P (- 3P))
|
||||
(vertices
|
||||
(list->vector
|
||||
;; TODO: use permutations to generate these
|
||||
(list
|
||||
#[ -P 2 -1-2P ]
|
||||
#[ -1 -3P 0 ]
|
||||
#[ 2+P -2P 1 ]
|
||||
#[ 0 1 3P ]
|
||||
#[ -1 -2-P 2P ]
|
||||
#[ -3P 0 1 ]
|
||||
#[ 1 -2-P 2P ]
|
||||
#[ -2P 1 -2-P ]
|
||||
#[ 1 2+P -2P ]
|
||||
#[ 2 1+2P -P ]
|
||||
#[ -2-P -2P 1 ]
|
||||
#[ -2-P 2P -1 ]
|
||||
#[ -1 -2-P -2P ]
|
||||
#[ -P -2 -1-2P ]
|
||||
#[ -1-2P -P 2 ]
|
||||
#[ 1+2P P 2 ]
|
||||
#[ -1 3P 0 ]
|
||||
#[ 1+2P P -2 ]
|
||||
#[ -2 1+2P P ]
|
||||
#[ -1-2P -P -2 ]
|
||||
#[ 3P 0 1 ]
|
||||
#[ P -2 1+2P ]
|
||||
#[ 1+2P -P -2 ]
|
||||
#[ 0 -1 -3P ]
|
||||
#[ 0 -1 3P ]
|
||||
#[ 1 2+P 2P ]
|
||||
#[ -1-2P P -2 ]
|
||||
#[ -2 1+2P -P ]
|
||||
#[ 1 -3P 0 ]
|
||||
#[ 1+2P -P 2 ]
|
||||
#[ -2P -1 -2-P ]
|
||||
#[ 2P 1 2+P ]
|
||||
#[ P 2 1+2P ]
|
||||
#[ 2+P 2P -1 ]
|
||||
#[ -2-P -2P -1 ]
|
||||
#[ P -2 -1-2P ]
|
||||
#[ 2 -1-2P P ]
|
||||
#[ 3P 0 -1 ]
|
||||
#[ -2P 1 2+P ]
|
||||
#[ -1-2P P 2 ]
|
||||
#[ -P -2 1+2P ]
|
||||
#[ 2+P -2P -1 ]
|
||||
#[ -1 2+P 2P ]
|
||||
#[ -P 2 1+2P ]
|
||||
#[ 1 3P 0 ]
|
||||
#[ -2P -1 2+P ]
|
||||
#[ P 2 -1-2P ]
|
||||
#[ 1 -2-P -2P ]
|
||||
#[ 2P 1 -2-P ]
|
||||
#[ 2P -1 2+P ]
|
||||
#[ -1 2+P -2P ]
|
||||
#[ 2 1+2P P ]
|
||||
#[ 2+P 2P 1 ]
|
||||
#[ -2 -1-2P -P ]
|
||||
#[ 0 1 -3P ]
|
||||
#[ -3P 0 -1 ]
|
||||
#[ 2P -1 -2-P ]
|
||||
#[ 2 -1-2P -P ]
|
||||
#[ -2 -1-2P P ]
|
||||
#[ -2-P 2P 1 ])))
|
||||
(pentagons
|
||||
'(#(12 47 35 23 13) ; flipped
|
||||
#(18 59 11 27 16)
|
||||
#(19 30 7 26 55)
|
||||
#(6 4 40 24 21) ; flipped
|
||||
#(42 25 32 3 43) ; flipped
|
||||
#(44 9 33 52 51)
|
||||
#(8 50 0 54 46) ; flipped
|
||||
#(56 22 37 17 48) ; flipped
|
||||
#(49 31 15 20 29)
|
||||
#(5 39 38 45 14)
|
||||
#(34 10 58 1 53) ; flipped
|
||||
#(57 28 36 2 41)))
|
||||
(hexagons
|
||||
'(#(10 14 45 40 4 58)
|
||||
#(11 26 7 0 50 27)
|
||||
#(42 43 38 39 59 18) ; flipped
|
||||
#(2 36 6 21 49 29)
|
||||
#(20 37 22 41 2 29)
|
||||
#(25 51 52 15 31 32)
|
||||
#(26 11 59 39 5 55)
|
||||
#(57 47 12 53 1 28) ; flipped
|
||||
#(28 1 58 4 6 36)
|
||||
#(49 21 24 3 32 31) ; flipped
|
||||
#(53 12 13 30 19 34) ; flipped
|
||||
#(20 15 52 33 17 37) ; flipped
|
||||
#(41 22 56 35 47 57)
|
||||
#(16 27 50 8 9 44) ; flipped
|
||||
#(45 38 43 3 24 40)
|
||||
#(48 46 54 23 35 56)
|
||||
#(14 10 34 19 55 5) ; flipped
|
||||
#(51 25 42 18 16 44)
|
||||
#(30 13 23 54 0 7) ; flipped
|
||||
#(9 8 46 48 17 33))))
|
||||
|
||||
;; intersect all half-spaces from a triangle of each of the pentagons
|
||||
;; and hexagons
|
||||
(apply intersection
|
||||
(append
|
||||
(map
|
||||
(lambda (pentagon)
|
||||
(half-space-pts (vector-ref vertices (vector-ref pentagon 0))
|
||||
(vector-ref vertices (vector-ref pentagon 1))
|
||||
(vector-ref vertices (vector-ref pentagon 2))))
|
||||
pentagons)
|
||||
(map
|
||||
(lambda (hexagon)
|
||||
(half-space-pts (vector-ref vertices (vector-ref hexagon 0))
|
||||
(vector-ref vertices (vector-ref hexagon 1))
|
||||
(vector-ref vertices (vector-ref hexagon 2))))
|
||||
hexagons)))))
|
||||
|
||||
(define (my-rounded-cube len r)
|
||||
;; cube in #[-len/2 -len/2 0] to #[len/2 len/2 len]
|
||||
;; with all edges and corners rounded at radius r
|
||||
(let* ((offset (/ len 2))
|
||||
(base (extrude-z
|
||||
(rounded-rectangle #[(- offset) (- offset)] #[offset offset] r)
|
||||
0
|
||||
len))
|
||||
(faceted (intersection
|
||||
base
|
||||
(move (rotate-x base (/ pi 2)) #[0 offset offset])
|
||||
(move (rotate-y base (/ pi 2)) #[offset 0 offset])))
|
||||
(sph (difference
|
||||
(sphere r)
|
||||
(box #[(- r) 0 (- r)] #[r r r])
|
||||
(box #[(- r) (- r) 0] #[r r r])
|
||||
(box #[0 (- r) (- r)] #[r r r])))
|
||||
(corner (difference (box #[(- r) (- r) (- r)] #[ 0 0 0]) sph))
|
||||
(half-corners
|
||||
(union
|
||||
(move corner #[(- r offset) (- r offset) r])
|
||||
(move (rotate-y corner (/ pi 2)) #[(- offset r) (- r offset) r])
|
||||
(move (rotate-x corner (/ pi 2)) #[(- r offset) (- offset r) r])
|
||||
(move
|
||||
(rotate-y (rotate-x corner (/ pi 2)) (/ pi 2))
|
||||
#[(- offset r) (- offset r) r])))
|
||||
(corners
|
||||
(union
|
||||
half-corners
|
||||
(move (rotate-x half-corners pi) #[0 0 len]))))
|
||||
(difference faceted corners)))
|
||||
|
||||
(define (make-turtle-shape)
|
||||
(let* ((bball-radius (sqrt (+ (* 9 (* +P+ +P+)) 1)))
|
||||
(base-sphere (sphere (* bball-radius 0.925)))
|
||||
;; bottom
|
||||
(bottom (scale-xyz base-sphere #[1 0.225 1]))
|
||||
;; head
|
||||
(head-cutout-sphere (scale-xyz (move (sphere 2)
|
||||
#[(+ bball-radius 0) 1.5 0])
|
||||
#[1 .5 1]))
|
||||
;; shell
|
||||
(shell-sphere (sphere bball-radius))
|
||||
(bball (icosohedron))
|
||||
(shell (morph bball shell-sphere .3))
|
||||
(half-shell (difference shell (half-space #[0 1 0])))
|
||||
(base-shell-unscaled (union half-shell
|
||||
bottom))
|
||||
(base-shell (scale-xyz base-shell-unscaled #[1.25 1 1]))
|
||||
(shell-cutout (scale-xyz (sphere bball-radius) #[1 0.15 1.1]))
|
||||
;; body
|
||||
(body (intersection
|
||||
(move (scale-xyz base-sphere #[1.1 0.5 1])
|
||||
#[0 0.5 0])
|
||||
base-shell))
|
||||
;; shell assembly
|
||||
(turtle-shell
|
||||
(difference base-shell
|
||||
;; head area
|
||||
(move shell-cutout #[(+ bball-radius 0.75) 0.4 0])
|
||||
head-cutout-sphere
|
||||
;; tail area
|
||||
(move shell-cutout #[(- (+ bball-radius 0.75)) 0.4 0])))
|
||||
;; head/neck
|
||||
(neck (cylinder-z 0.8 3.0 #[0 0.1 0]))
|
||||
(eye (sphere 0.35))
|
||||
;;(mouth (ang-wedge (/ pi 50) 2 2))
|
||||
(head (union
|
||||
(move (scale-xyz
|
||||
(my-rounded-cube 2.2 0.8) #[1 1 1.1]) #[0 0.4 -1.3])
|
||||
(move eye #[0.77 0.6 -0.7])
|
||||
(move eye #[-0.77 0.6 -0.7])))
|
||||
(head/neck (scale-xyz (move
|
||||
(rotate-z (rotate-y (union neck head) (/ pi 2))
|
||||
(/ pi 12))
|
||||
#[6.75 1.05 0])
|
||||
#[1 1 0.95]))
|
||||
(leg (rotate-z (scale-xyz (sphere 1.0) #[2.2 0.4 0.7]) (/ pi 9)))
|
||||
(legs (union
|
||||
(move (rotate-y leg (/ pi 5)) #[-3.5 0.5 -3.3])
|
||||
(move (rotate-y leg (- (/ pi 5))) #[-3.5 0.5 3.3])
|
||||
(move (rotate-y leg (* pi (/ 4 5))) #[3.5 0.5 -3.3])
|
||||
(move (rotate-y leg (- (* pi (/ 4 5)))) #[3.5 0.5 3.3])))
|
||||
(tail (move (scale-xyz (sphere 1.0) #[2.0 0.3 0.35]) #[-5 0.5 0]))
|
||||
;; turtle assembly
|
||||
(turtle (union turtle-shell body head/neck legs tail)))
|
||||
turtle))
|
||||
|
||||
(make-viewer)
|
||||
(set-shape (make-turtle-shape) '((-20 . 20) (-20 . 20) (-20 . 20)) 10)
|
|
@ -0,0 +1,22 @@
|
|||
# git_clean_all
|
||||
#
|
||||
# Copyright 2018 Kavalogic, Inc.
|
||||
#
|
||||
# This file is part of Inspekt3d.
|
||||
#
|
||||
# Inspekt3d is free software; you can redistribute it and/or modify it
|
||||
# under the terms of the GNU Lesser General Public License
|
||||
# version 2.1 as published by the Free Software Foundation.
|
||||
#
|
||||
# Inspekt3d is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
# Lesser General Public License for more details. You should have
|
||||
# received a copy of the GNU Lesser General Public License along with
|
||||
# Inspekt3d. If not, see <http://www.gnu.org/licenses/>.
|
||||
#
|
||||
# git_clean_all - clean the source
|
||||
|
||||
git clean . -f
|
||||
rm -rf autom4te.cache/ `find . -name .libs` `find . -name .deps`
|
||||
|
|
@ -0,0 +1,193 @@
|
|||
;;; camera.scm
|
||||
;;;
|
||||
;;; Copyright 2018 Kavalogic, Inc.
|
||||
;;;
|
||||
;;; This file is part of Inspekt3d.
|
||||
;;;
|
||||
;;; Inspekt3d is free software: you can redistribute it and/or modify
|
||||
;;; it under the terms of the GNU General Public License as
|
||||
;;; published by the Free Software Foundation, either version 3 of the
|
||||
;;; License, or (at your option) any later version.
|
||||
;;;
|
||||
;;; Inspekt3d is distributed in the hope that it will be useful, but
|
||||
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
;;; Lesser General Public License for more details.
|
||||
;;;
|
||||
;;; You should have received a copy of the GNU General Public
|
||||
;;; License along with this program. If not, see
|
||||
;;; <http://www.gnu.org/licenses/>.
|
||||
|
||||
(define-module (inspekt3d camera)
|
||||
#:use-module (inspekt3d gl-missing)
|
||||
#:use-module (oop goops)
|
||||
#:use-module (gl))
|
||||
|
||||
;;; class <rotation>
|
||||
(define-class <rotation> ()
|
||||
(rotating? #:getter is-rotating? #:init-value #f)
|
||||
(screen-rot-x #:getter get-screen-rot-x #:init-value 0)
|
||||
(screen-rot-y #:getter get-screen-rot-y #:init-value 0)
|
||||
(screen-base-x)
|
||||
(screen-base-y)
|
||||
(last-screen-offset-x #:init-value 0)
|
||||
(last-screen-offset-y #:init-value 0))
|
||||
(export <rotation>)
|
||||
(export is-rotating? get-screen-rot-x get-screen-rot-y)
|
||||
|
||||
(define-method (rotation-start (self <rotation>)
|
||||
(x <integer>)
|
||||
(y <integer>))
|
||||
(slot-set! self 'screen-base-x x)
|
||||
(slot-set! self 'screen-base-y y)
|
||||
(slot-set! self 'rotating? #t))
|
||||
(export rotation-start)
|
||||
|
||||
(define *rotation-scale* 360/500)
|
||||
|
||||
(define-method (rotation-rotate (self <rotation>)
|
||||
(x <integer>)
|
||||
(y <integer>))
|
||||
(let ((x' (+ (- x (slot-ref self 'screen-base-x))
|
||||
(slot-ref self 'last-screen-offset-x)))
|
||||
(y' (+ (- y (slot-ref self 'screen-base-y))
|
||||
(slot-ref self 'last-screen-offset-y))))
|
||||
(slot-set! self 'screen-rot-y (* *rotation-scale* x'))
|
||||
(slot-set! self 'screen-rot-x (* *rotation-scale* y'))))
|
||||
(export rotation-rotate)
|
||||
|
||||
(define-method (rotation-end (self <rotation>)
|
||||
(x <integer>)
|
||||
(y <integer>))
|
||||
(slot-set! self 'rotating? #f)
|
||||
(slot-set! self 'last-screen-offset-x
|
||||
(+ (slot-ref self 'last-screen-offset-x)
|
||||
(- x (slot-ref self 'screen-base-x))))
|
||||
(slot-set! self 'last-screen-offset-y
|
||||
(+ (slot-ref self 'last-screen-offset-y)
|
||||
(- y (slot-ref self 'screen-base-y)))))
|
||||
(export rotation-end)
|
||||
|
||||
;; class <zoom>
|
||||
(define-class <zoom> ()
|
||||
;; current zoom
|
||||
(zoom-value #:getter get-zoom #:init-value 1 #:init-keyword #:zoom-value)
|
||||
;; how fast we zoom
|
||||
(factor #:init-keyword #:factor))
|
||||
(export <zoom>)
|
||||
(export get-zoom)
|
||||
(define-method (zoom-in (self <zoom>))
|
||||
(let* ((factor (slot-ref self 'factor))
|
||||
(zoom-value (+ (slot-ref self 'zoom-value) factor)))
|
||||
(slot-set! self 'zoom-value zoom-value)))
|
||||
(export zoom-in)
|
||||
(define-method (zoom-out (self <zoom>))
|
||||
(let* ((factor (slot-ref self 'factor))
|
||||
(zoom-value (- (slot-ref self 'zoom-value) factor)))
|
||||
(slot-set! self 'zoom-value zoom-value)))
|
||||
(export zoom-out)
|
||||
|
||||
;;; class <camera>
|
||||
(define-class <camera> ()
|
||||
(width #:getter get-width #:setter set-width #:init-value 0)
|
||||
(height #:getter get-height #:setter set-height #:init-value 0)
|
||||
(eye #:getter get-eye #:setter set-eye #:init-value #(0 0 1))
|
||||
(center #:getter get-center #:setter set-center #:init-value #(0 0 0))
|
||||
(up #:getter get-up #:setter set-up #:init-value #(0 1 0))
|
||||
(rotator #:getter get-rotator #:init-form (make <rotation>))
|
||||
(zoomer #:getter get-zoomer
|
||||
#:init-form (make <zoom> #:factor 0.05 #:zoom-value 1)))
|
||||
(export <camera>)
|
||||
(export get-width set-width get-height set-height get-eye set-eye)
|
||||
(export get-center set-center get-up set-up)
|
||||
(export get-rotator get-zoomer)
|
||||
|
||||
(define (vec3-length v)
|
||||
(define (square e) (* e e))
|
||||
(sqrt (+ (square (vector-ref v 0))
|
||||
(square (vector-ref v 1))
|
||||
(square (vector-ref v 2)))))
|
||||
(define (vec3-sub v1 v2)
|
||||
(vector (- (vector-ref v1 0)
|
||||
(vector-ref v2 0))
|
||||
(- (vector-ref v1 1)
|
||||
(vector-ref v2 1))
|
||||
(- (vector-ref v1 2)
|
||||
(vector-ref v2 2))))
|
||||
|
||||
(define-method (establish-modelview-matrix (self <camera>))
|
||||
(let ((eye (slot-ref self 'eye))
|
||||
(center (slot-ref self 'center))
|
||||
(up (slot-ref self 'up)))
|
||||
(set-gl-matrix-mode (matrix-mode modelview))
|
||||
(gl-load-identity)
|
||||
(let ((distance (vec3-length (vec3-sub eye center)))
|
||||
(rotator (slot-ref self 'rotator)))
|
||||
(gl-translate 0 0 (- distance))
|
||||
(gl-rotate (slot-ref rotator 'screen-rot-x) 1 0 0)
|
||||
(gl-rotate (slot-ref rotator 'screen-rot-y) 0 1 0)
|
||||
(gl-translate 0 0 distance)
|
||||
(glu-look-at (vector-ref eye 0)
|
||||
(vector-ref eye 1)
|
||||
(vector-ref eye 2)
|
||||
(vector-ref center 0)
|
||||
(vector-ref center 1)
|
||||
(vector-ref center 2)
|
||||
(vector-ref up 0)
|
||||
(vector-ref up 1)
|
||||
(vector-ref up 2)))))
|
||||
(export establish-modelview-matrix)
|
||||
|
||||
(define (bounds-length l)
|
||||
(let* ((x (car l))
|
||||
(x-min (car x))
|
||||
(x-max (cdr x))
|
||||
(y (cadr l))
|
||||
(y-min (car y))
|
||||
(y-max (cdr y))
|
||||
(z (caddr l))
|
||||
(z-min (car z))
|
||||
(z-max (cdr z)))
|
||||
(vec3-length (vector (- x-max x-min)
|
||||
(- y-max y-min)
|
||||
(- z-max z-min)))))
|
||||
|
||||
(define-method (establish-projection-matrix (self <camera>)
|
||||
(bounds <list>))
|
||||
(let* ((r (bounds-length bounds))
|
||||
(dist-2-eye (vec3-length (vec3-sub (slot-ref self 'eye)
|
||||
(slot-ref self 'center))))
|
||||
(viewport-aspect (/ (slot-ref self 'height)
|
||||
(slot-ref self 'width)))
|
||||
(zoom (slot-ref (slot-ref self 'zoomer) 'zoom-value))
|
||||
(min (vector (- r) (- r) (- r)))
|
||||
(min-x (vector-ref min 0))
|
||||
(min-y (vector-ref min 1))
|
||||
(max (vector r r r))
|
||||
(max-x (vector-ref max 0))
|
||||
(max-y (vector-ref max 1))
|
||||
(window-aspect (/ (- max-y min-y) (- max-x min-x))))
|
||||
;; calculate viewport parameters
|
||||
(if (> viewport-aspect window-aspect)
|
||||
;; viewport taller than it needs to be
|
||||
(let ((new-height (* viewport-aspect (- max-x min-x)))
|
||||
(y-mid (/ (+ min-y max-y) 2)))
|
||||
(vector-set! max 1 (+ y-mid (* 1/2 new-height)))
|
||||
(vector-set! min 1 (- y-mid (* 1/2 new-height))))
|
||||
;; viewport wider than it needs to be
|
||||
(let ((new-width (/ (- max-y min-y) viewport-aspect))
|
||||
(x-mid (/ (+ min-x max-x) 2)))
|
||||
(vector-set! max 0 (+ x-mid (* 1/2 new-width)))
|
||||
(vector-set! min 0 (- x-mid (* 1/2 new-width)))))
|
||||
;; do the projection
|
||||
(let ((new-min (vector (/ (vector-ref min 0) zoom)
|
||||
(/ (vector-ref min 1) zoom)
|
||||
(vector-ref min 2)))
|
||||
(new-max (vector (/ (vector-ref max 0) zoom)
|
||||
(/ (vector-ref max 1) zoom)
|
||||
(vector-ref max 2))))
|
||||
;; use an orthographic projection using adjusted model boundaries
|
||||
(gl-ortho (vector-ref new-min 0) (vector-ref new-max 0)
|
||||
(vector-ref new-min 1) (vector-ref new-max 1)
|
||||
(vector-ref new-min 2) (vector-ref new-max 2)))))
|
||||
(export establish-projection-matrix)
|
|
@ -0,0 +1,105 @@
|
|||
;;; gl-missing.scm
|
||||
;;;
|
||||
;;; Copyright 2018 Kavalogic, Inc.
|
||||
;;;
|
||||
;;; This file is part of Inspekt3d.
|
||||
;;;
|
||||
;;; Inspekt3d is free software: you can redistribute it and/or modify
|
||||
;;; it under the terms of the GNU General Public License as
|
||||
;;; published by the Free Software Foundation, either version 3 of the
|
||||
;;; License, or (at your option) any later version.
|
||||
;;;
|
||||
;;; Inspekt3d is distributed in the hope that it will be useful, but
|
||||
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
;;; Lesser General Public License for more details.
|
||||
;;;
|
||||
;;; You should have received a copy of the GNU General Public
|
||||
;;; License along with this program. If not, see
|
||||
;;; <http://www.gnu.org/licenses/>.
|
||||
|
||||
(define-module (inspekt3d gl-missing)
|
||||
#:use-module ((system foreign) #:renamer (symbol-prefix-proc 'ffi:))
|
||||
#:use-module (gl types)
|
||||
#:use-module (gl enums)
|
||||
#:use-module (gl runtime)
|
||||
#:use-module ((gl low-level) #:renamer (symbol-prefix-proc '%))
|
||||
#:use-module ((glu low-level) #:renamer (symbol-prefix-proc '%))
|
||||
#:use-module (glut)
|
||||
#:use-module (glut types)
|
||||
#:use-module (glut runtime)
|
||||
#:use-module ((glut low-level) #:renamer (symbol-prefix-proc '%)))
|
||||
|
||||
|
||||
;;; missing GL functions
|
||||
(re-export (%glDrawElements . gl-draw-elements))
|
||||
;;; lighting
|
||||
(re-export (%glLightfv . gl-light))
|
||||
(re-export (%glLightModelfv . gl-light-model))
|
||||
(re-export (%glMaterialfv . gl-material))
|
||||
;;; shader
|
||||
(re-export (%glCreateShader . gl-create-shader))
|
||||
(re-export (%glShaderSource . gl-shader-source))
|
||||
(re-export (%glCompileShader . gl-compile-shader))
|
||||
(define (gl-get-shader shader pname)
|
||||
(let ((params (u32vector 0)))
|
||||
(%glGetShaderiv shader pname params)
|
||||
(u32vector-ref params 0)))
|
||||
(export gl-get-shader)
|
||||
;;; shader program
|
||||
(re-export (%glCreateProgram . gl-create-program))
|
||||
(re-export (%glAttachShader . gl-attach-shader))
|
||||
(re-export (%glLinkProgram . gl-link-program))
|
||||
(define (gl-get-program program pname)
|
||||
(let ((params (u32vector 0)))
|
||||
(%glGetProgramiv program pname params)
|
||||
(u32vector-ref params 0)))
|
||||
(export gl-get-program)
|
||||
(re-export (%glUseProgram . gl-use-program))
|
||||
(re-export (%glGetUniformLocation . gl-get-uniform-location))
|
||||
(define (gl-uniform-float loc x . rest)
|
||||
(case (length rest)
|
||||
((0) (%glUniform1f loc x))
|
||||
((1) (apply %glUniform2f loc x rest))
|
||||
((2) (apply %glUniform3f loc x rest))
|
||||
((3) (apply %glUniform4f loc x rest))))
|
||||
(export gl-uniform-float)
|
||||
(define (gl-get-shader-info-log shader)
|
||||
(let* ((log-length-c (u32vector 0))
|
||||
(log-length (gl-get-shader shader (version-2-0 info-log-length))))
|
||||
(if (<= log-length 1)
|
||||
#f
|
||||
(let* ((log-string (make-string (1- log-length) #\space))
|
||||
(log-string-c (ffi:string->pointer log-string)))
|
||||
(%glGetShaderInfoLog shader log-length log-length-c log-string-c)
|
||||
(ffi:pointer->string log-string-c)))))
|
||||
(export gl-get-shader-info-log)
|
||||
(define (gl-get-program-info-log program)
|
||||
(let* ((log-length-c (u32vector 0))
|
||||
(log-length (gl-get-program program (version-2-0 info-log-length))))
|
||||
(if (<= log-length 1)
|
||||
#f
|
||||
(let* ((log-string (make-string (1- log-length) #\space))
|
||||
(log-string-c (ffi:string->pointer log-string)))
|
||||
(%glGetProgramInfoLog program log-length log-length-c log-string-c)
|
||||
(ffi:pointer->string log-string-c)))))
|
||||
(export gl-get-program-info-log)
|
||||
(re-export (%glDeleteShader . gl-delete-shader))
|
||||
(re-export (%glDeleteProgram . gl-delete-program))
|
||||
|
||||
;;; missing GLU functions
|
||||
(re-export (%gluLookAt . glu-look-at))
|
||||
|
||||
;;; missing GLUT functions (need Freeglut)
|
||||
(define-enumeration glut-option
|
||||
(glut-action-on-window-close #x01F9))
|
||||
(export glut-option)
|
||||
(define glut-close-action-mainloop-returns 1)
|
||||
(export glut-close-action-mainloop-returns)
|
||||
(define-glut-procedure (glutSetOption (e-what GLenum)
|
||||
(value int)
|
||||
-> void) #f)
|
||||
(export (glutSetOption . glut-set-option))
|
||||
(define (glut-destroy-window window)
|
||||
(%glutDestroyWindow (window-id window)))
|
||||
(export glut-destroy-window)
|
|
@ -0,0 +1,88 @@
|
|||
;;; library.scm
|
||||
;;;
|
||||
;;; Copyright 2018 Kavalogic, Inc.
|
||||
;;;
|
||||
;;; This file is part of Inspekt3d.
|
||||
;;;
|
||||
;;; Inspekt3d is free software: you can redistribute it and/or modify
|
||||
;;; it under the terms of the GNU General Public License as
|
||||
;;; published by the Free Software Foundation, either version 3 of the
|
||||
;;; License, or (at your option) any later version.
|
||||
;;;
|
||||
;;; Inspekt3d is distributed in the hope that it will be useful, but
|
||||
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
;;; Lesser General Public License for more details.
|
||||
;;;
|
||||
;;; You should have received a copy of the GNU General Public
|
||||
;;; License along with this program. If not, see
|
||||
;;; <http://www.gnu.org/licenses/>.
|
||||
|
||||
(eval-when (expand load eval)
|
||||
(load-extension "libfive-guile" "scm_init_libfive_modules"))
|
||||
|
||||
(define-module (inspekt3d library)
|
||||
#:use-module (oop goops)
|
||||
#:use-module (system foreign)
|
||||
#:use-module (libfive kernel))
|
||||
|
||||
(define libfive-lib (dynamic-link "libfive"))
|
||||
(define libfive-guile-lib (dynamic-link "libfive-guile"))
|
||||
|
||||
;;; low level FFI definitions
|
||||
(define libfive-region3-struct-type (list float float float float float float))
|
||||
(define (make-region3-struct r)
|
||||
(let* ((x-bounds (car r))
|
||||
(y-bounds (cadr r))
|
||||
(z-bounds (caddr r))
|
||||
(x-min (car x-bounds)) (x-max (cdr x-bounds))
|
||||
(y-min (car y-bounds)) (y-max (cdr y-bounds))
|
||||
(z-min (car z-bounds)) (z-max (cdr z-bounds)))
|
||||
(make-c-struct libfive-region3-struct-type
|
||||
(list x-min x-max y-min y-max z-min z-max))))
|
||||
(define libfive-mesh-struct (list '* '* uint32 uint32))
|
||||
(define libfive-vec3-struct (list float float float))
|
||||
(define libfive-tri-struct (list uint32 uint32 uint32))
|
||||
(define %libfive-tree-render-mesh
|
||||
(pointer->procedure '*
|
||||
(dynamic-func "libfive_tree_render_mesh" libfive-lib)
|
||||
(list '* libfive-region3-struct-type float)))
|
||||
(define %libfive-delete-mesh
|
||||
(pointer->procedure void
|
||||
(dynamic-func "libfive_mesh_delete" libfive-lib)
|
||||
(list '*)))
|
||||
|
||||
;;; foreign mesh class
|
||||
(define-class <mesh> ()
|
||||
(mesh-ptr #:getter get-mesh-ptr #:init-keyword #:mesh-ptr #:init-value #nil)
|
||||
(region #:getter get-region #:init-keyword #:region))
|
||||
(export <mesh>)
|
||||
(define (make-mesh m r) (make <mesh> #:mesh-ptr m #:region r))
|
||||
(define-method (get-mesh-members (self <mesh>))
|
||||
(let ((mesh-struct-list (parse-c-struct (get-mesh-ptr self) libfive-mesh-struct)))
|
||||
(values (car mesh-struct-list) ; verts
|
||||
(cadr mesh-struct-list) ; tris
|
||||
(caddr mesh-struct-list) ; tri_count
|
||||
(cadddr mesh-struct-list)))) ; vert_count
|
||||
(export get-mesh-members)
|
||||
;;; delete low level structure
|
||||
(define-method (delete-mesh (self <mesh>))
|
||||
(let ((mesh-ptr (get-mesh-ptr self)))
|
||||
(unless (null? mesh-ptr)
|
||||
(%libfive-delete-mesh mesh-ptr)
|
||||
(slot-set! self 'mesh-ptr #nil))))
|
||||
(export delete-mesh)
|
||||
;;;
|
||||
(define-method (shape->in-memory-mesh (s <shape>)
|
||||
(r <list>)
|
||||
(res <number>))
|
||||
"shape->mesh-in-memory-mesh shape region resolution
|
||||
Convert a libfive shape into an in-memory <mesh> object suitable for
|
||||
displaying."
|
||||
(make-mesh (%libfive-tree-render-mesh
|
||||
;; hack, depends on layout of shape struct!:
|
||||
(dereference-pointer (unwrap-shape s))
|
||||
(make-region3-struct r)
|
||||
res)
|
||||
r))
|
||||
(export shape->in-memory-mesh)
|
|
@ -0,0 +1,134 @@
|
|||
;;; shader.scm
|
||||
;;;
|
||||
;;; Copyright 2018 Kavalogic, Inc.
|
||||
;;; Copyright (C) 2014 Free Software Foundation, Inc.
|
||||
;;;
|
||||
;;; This file is part of Inspekt3d.
|
||||
;;;
|
||||
;;; Inspekt3d is free software: you can redistribute it and/or modify
|
||||
;;; it under the terms of the GNU General Public License as
|
||||
;;; published by the Free Software Foundation, either version 3 of the
|
||||
;;; License, or (at your option) any later version.
|
||||
;;;
|
||||
;;; Inspekt3d is distributed in the hope that it will be useful, but
|
||||
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
;;; Lesser General Public License for more details.
|
||||
;;;
|
||||
;;; You should have received a copy of the GNU General Public
|
||||
;;; License along with this program. If not, see
|
||||
;;; <http://www.gnu.org/licenses/>.
|
||||
|
||||
(define-module (inspekt3d shader)
|
||||
#:use-module (gl)
|
||||
#:use-module (inspekt3d gl-missing)
|
||||
#:use-module (system foreign)
|
||||
#:use-module (ice-9 format)
|
||||
#:use-module (oop goops))
|
||||
|
||||
;;; shader
|
||||
(define-class <shader> ()
|
||||
(vertex-shader #:init-value #nil)
|
||||
(fragment-shader #:init-value #nil)
|
||||
(shader-program #:init-value #nil))
|
||||
(export <shader>)
|
||||
|
||||
;;; shader source
|
||||
;;; vertex
|
||||
(define *vertex-shader-source*
|
||||
"#version 120
|
||||
varying vec3 ec_pos;
|
||||
|
||||
void main() {
|
||||
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
|
||||
|
||||
ec_pos = gl_Position.xyz;
|
||||
}
|
||||
")
|
||||
|
||||
;;; fragment
|
||||
(define *fragment-shader-source*
|
||||
"#version 120
|
||||
|
||||
varying vec3 ec_pos;
|
||||
|
||||
void main() {
|
||||
vec3 base3 = vec3(0.99, 0.96, 0.89);
|
||||
vec3 base2 = vec3(0.92, 0.91, 0.83);
|
||||
vec3 base00 = vec3(0.40, 0.48, 0.51);
|
||||
|
||||
vec3 ec_normal = normalize(cross(dFdx(ec_pos), dFdy(ec_pos)));
|
||||
|
||||
float a = dot(ec_normal, vec3(0.0, 0.0, 1.0));
|
||||
float b = dot(ec_normal, vec3(-0.57, -0.57, 0.57));
|
||||
|
||||
gl_FragColor = vec4((a*base2 + (1-a)*base00)*0.5 +
|
||||
(b*base3 + (1-b)*base00)*0.5, 1.0);
|
||||
}
|
||||
")
|
||||
|
||||
(define (print-shader-log shader shader-type)
|
||||
(format #t "~%*** ~a shader compile failed!~%" shader-type)
|
||||
(format #t "*** Log:~%")
|
||||
(format #t "~a~%" (gl-get-shader-info-log shader))
|
||||
(format #t "***~%"))
|
||||
|
||||
(define (print-program-log program)
|
||||
(format #t "~%*** Program link failed!~%")
|
||||
(format #t "*** Log:~%")
|
||||
(format #t "~a~%" (gl-get-program-info-log program))
|
||||
(format #t "***~%"))
|
||||
|
||||
(define string-array-type (list '*))
|
||||
|
||||
(define-method (setup (self <shader>))
|
||||
(let ((vert-shader (gl-create-shader (version-2-0 vertex-shader)))
|
||||
(frag-shader (gl-create-shader (version-2-0 fragment-shader))))
|
||||
;; compile the vertex and fragment shaders
|
||||
;; vertex shader
|
||||
(let* ((vert-shader-src-str (string->pointer *vertex-shader-source*))
|
||||
(vert-shader-src-array (make-c-struct
|
||||
string-array-type
|
||||
(list vert-shader-src-str))))
|
||||
(gl-shader-source vert-shader 1 vert-shader-src-array %null-pointer)
|
||||
(gl-compile-shader vert-shader)
|
||||
(if (eq? (gl-get-shader vert-shader (version-2-0 compile-status))
|
||||
(boolean true))
|
||||
(slot-set! self 'vertex-shader vert-shader)
|
||||
(print-shader-log vert-shader "Vertex")))
|
||||
;; fragment shader
|
||||
(let* ((frag-shader-src-str (string->pointer *fragment-shader-source*))
|
||||
(frag-shader-src-array (make-c-struct
|
||||
string-array-type
|
||||
(list frag-shader-src-str))))
|
||||
(gl-shader-source frag-shader 1 frag-shader-src-array %null-pointer)
|
||||
(gl-compile-shader frag-shader)
|
||||
(if (eq? (gl-get-shader frag-shader (version-2-0 compile-status))
|
||||
(boolean true))
|
||||
(slot-set! self 'fragment-shader frag-shader)
|
||||
(print-shader-log frag-shader "Fragment"))))
|
||||
;; attach the shaders to the program and link
|
||||
(let ((vertex-shader (slot-ref self 'vertex-shader))
|
||||
(fragment-shader (slot-ref self 'fragment-shader)))
|
||||
(unless (or (null? vertex-shader) (null? fragment-shader))
|
||||
;; attach shaders and link shader program
|
||||
(let ((program (gl-create-program)))
|
||||
(gl-attach-shader program vertex-shader)
|
||||
(gl-attach-shader program fragment-shader)
|
||||
(gl-link-program program)
|
||||
(if (eq? (gl-get-program program (version-2-0 link-status))
|
||||
(boolean true))
|
||||
(begin
|
||||
(gl-use-program program)
|
||||
(slot-set! self 'shader-program program))
|
||||
(print-program-log program))))))
|
||||
(export setup)
|
||||
|
||||
(define-method (cleanup (shader <shader>))
|
||||
(let ((vertex-shader (slot-ref shader 'vertex-shader)))
|
||||
(unless (null? vertex-shader) (gl-delete-shader vertex-shader)))
|
||||
(let ((fragment-shader (slot-ref shader 'fragment-shader)))
|
||||
(unless (null? fragment-shader) (gl-delete-shader fragment-shader)))
|
||||
(let ((shader-program (slot-ref shader 'shader-program)))
|
||||
(unless (null? shader-program) (gl-delete-program shader-program))))
|
||||
(export cleanup)
|
|
@ -0,0 +1,289 @@
|
|||
;;; viewer.scm
|
||||
;;;
|
||||
;;; Copyright 2018 Kavalogic, Inc.
|
||||
;;; Copyright (C) 2014 Free Software Foundation, Inc.
|
||||
;;;
|
||||
;;; This file is part of Inspekt3d.
|
||||
;;;
|
||||
;;; Inspekt3d is free software: you can redistribute it and/or modify
|
||||
;;; it under the terms of the GNU General Public License as
|
||||
;;; published by the Free Software Foundation, either version 3 of the
|
||||
;;; License, or (at your option) any later version.
|
||||
;;;
|
||||
;;; Inspekt3d is distributed in the hope that it will be useful, but
|
||||
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
;;; Lesser General Public License for more details.
|
||||
;;;
|
||||
;;; You should have received a copy of the GNU General Public
|
||||
;;; License along with this program. If not, see
|
||||
;;; <http://www.gnu.org/licenses/>.
|
||||
|
||||
;;; Derived from Guile-OpenGL 0.1.0
|
||||
;;; File: ./examples/particle-system/vbo.scm
|
||||
;;; Original License: LGPL 3+
|
||||
|
||||
(define-module (inspekt3d viewer)
|
||||
#:use-module (inspekt3d library)
|
||||
#:use-module (inspekt3d camera)
|
||||
#:use-module (inspekt3d shader)
|
||||
#:use-module (inspekt3d gl-missing)
|
||||
#:use-module (glut)
|
||||
#:use-module (gl)
|
||||
#:use-module (glu)
|
||||
#:use-module (ice-9 threads)
|
||||
#:use-module (ice-9 receive)
|
||||
#:use-module (system foreign)
|
||||
#:use-module (oop goops))
|
||||
|
||||
;;; Globals
|
||||
(define *full-screen?* #f)
|
||||
;;; object buffers
|
||||
(define *vertex-buffer* 0)
|
||||
(define *index-buffer* 0)
|
||||
;;; main window
|
||||
(define *main-window* #nil)
|
||||
;;; shape
|
||||
(define *shape-changed?* #f)
|
||||
;;; set by external thread, used when shape is changed
|
||||
(define *new-mesh* #nil)
|
||||
(define *new-bounds* #nil)
|
||||
;;; set by viewer thread, used to display
|
||||
(define *mesh* #nil)
|
||||
(define *bounds* #nil)
|
||||
;;; mutexes
|
||||
(define *run-mutex* (make-mutex))
|
||||
(define *shape-mutex* (make-mutex))
|
||||
;;; camera
|
||||
(define *camera* #nil)
|
||||
;;; shader
|
||||
(define *shader* #nil)
|
||||
|
||||
(define (draw-shape)
|
||||
(unless (null? *mesh*)
|
||||
(gl-enable-client-state (enable-cap vertex-array))
|
||||
(gl-bind-buffer (version-1-5 array-buffer) *vertex-buffer*)
|
||||
(set-gl-vertex-array (vertex-pointer-type float) #f)
|
||||
(gl-bind-buffer (version-1-5 element-array-buffer) *index-buffer*)
|
||||
(gl-draw-elements (begin-mode triangles)
|
||||
(* 3 (call-with-values
|
||||
(lambda () (get-mesh-members *mesh*))
|
||||
(lambda (v t triangle-count vc) triangle-count)))
|
||||
(data-type unsigned-int)
|
||||
#f)
|
||||
(gl-disable-client-state (enable-cap vertex-array))
|
||||
(gl-disable-client-state (enable-cap index-array))))
|
||||
|
||||
(define (exit-viewer)
|
||||
(unless (null? *main-window*) (glut-destroy-window *main-window*)))
|
||||
|
||||
(define (cleanup-for-exit)
|
||||
;; clean up the shaders
|
||||
(cleanup *shader*)
|
||||
;; cleanup up the mesh
|
||||
(unless (null? *mesh*) (delete-mesh *mesh*))
|
||||
(set! *main-window* #nil)
|
||||
(set-shape #nil #nil #nil))
|
||||
|
||||
(define (on-display)
|
||||
(gl-clear (clear-buffer-mask color-buffer depth-buffer))
|
||||
|
||||
(establish-modelview-matrix *camera*)
|
||||
|
||||
(draw-shape)
|
||||
|
||||
;; With double-buffering, swap-buffers will wait for the frame to be shown,
|
||||
;; which limits this program to the frame rate.
|
||||
(swap-buffers))
|
||||
|
||||
(define (reshape)
|
||||
;; use the whole window
|
||||
(let ((width (get-width *camera*))
|
||||
(height (get-height *camera*)))
|
||||
(gl-viewport 0 0 width height))
|
||||
|
||||
;; update the projection matrix
|
||||
(set-gl-matrix-mode (matrix-mode projection))
|
||||
(gl-load-identity)
|
||||
(unless (null? *bounds*)
|
||||
(establish-projection-matrix *camera* *bounds*))
|
||||
|
||||
(set-gl-matrix-mode (matrix-mode modelview)))
|
||||
|
||||
(define (on-reshape width height)
|
||||
;; update the camera
|
||||
(set-width *camera* width)
|
||||
(set-height *camera* height)
|
||||
|
||||
(reshape))
|
||||
|
||||
(define (on-special keycode x y)
|
||||
#f)
|
||||
|
||||
(define (on-mouse button state x y)
|
||||
(cond (;; left button rotates
|
||||
(eq? button (button-name left-button))
|
||||
(let ((rotator (get-rotator *camera*)))
|
||||
(if (eq? state (button-state down))
|
||||
(rotation-start rotator x y)
|
||||
(rotation-end rotator x y))))
|
||||
(;; mouse wheel button rotate upwards
|
||||
(eq? button 3)
|
||||
(let ((zoomer (get-zoomer *camera*)))
|
||||
(zoom-in zoomer)
|
||||
(reshape)
|
||||
(post-redisplay *main-window*)))
|
||||
(;; mouse wheel button rotate downwards
|
||||
(eq? button 4)
|
||||
(let ((zoomer (get-zoomer *camera*)))
|
||||
(zoom-out zoomer)
|
||||
(reshape)
|
||||
(post-redisplay *main-window*)))))
|
||||
|
||||
(define (on-motion x y)
|
||||
(let ((rotator (get-rotator *camera*)))
|
||||
(if (is-rotating? rotator)
|
||||
(begin
|
||||
;; update rotation
|
||||
(rotation-rotate rotator x y)
|
||||
(post-redisplay *main-window*)))))
|
||||
|
||||
(define (on-visibility visible?)
|
||||
#f)
|
||||
|
||||
(define (setup-for-display)
|
||||
(let ((need-redisplay? #f))
|
||||
(when (try-mutex *shape-mutex*)
|
||||
(with-throw-handler #t
|
||||
(lambda ()
|
||||
(when *shape-changed?*
|
||||
(unless (null? *mesh*)
|
||||
(delete-mesh *mesh*))
|
||||
(set! *mesh* *new-mesh*)
|
||||
(set! *bounds* *new-bounds*)
|
||||
(set! *new-mesh* #nil)
|
||||
(set! *new-bounds* #nil)
|
||||
(set! *shape-changed?* #f)
|
||||
(set! need-redisplay? #t)))
|
||||
#f)
|
||||
(unlock-mutex *shape-mutex*))
|
||||
(when need-redisplay?
|
||||
(receive (vertices triangles triangle-count vertex-count)
|
||||
(get-mesh-members *mesh*)
|
||||
;; set vertex buffer
|
||||
(gl-delete-buffer *vertex-buffer*) ; no-op if 0
|
||||
(set! *vertex-buffer* (gl-generate-buffer))
|
||||
(gl-bind-buffer (version-1-5 array-buffer) *vertex-buffer*)
|
||||
(set-gl-buffer-data (version-1-5 array-buffer)
|
||||
vertices
|
||||
(version-1-5 static-draw)
|
||||
(* 3 (sizeof float) vertex-count))
|
||||
;; set index buffer
|
||||
(gl-delete-buffer *index-buffer*) ; no-op if 0
|
||||
(set! *index-buffer* (gl-generate-buffer))
|
||||
(gl-bind-buffer (version-1-5 element-array-buffer) *index-buffer*)
|
||||
(set-gl-buffer-data (version-1-5 element-array-buffer)
|
||||
triangles
|
||||
(version-1-5 static-draw)
|
||||
(* 3 (sizeof uint32) triangle-count))
|
||||
;;; unbind buffers
|
||||
(gl-bind-buffer (version-1-5 array-buffer) 0)
|
||||
(gl-bind-buffer (version-1-5 element-array-buffer) 0)))
|
||||
need-redisplay?))
|
||||
|
||||
(define (on-idle)
|
||||
(when (setup-for-display)
|
||||
(reshape)
|
||||
(post-redisplay *main-window*)))
|
||||
|
||||
(define (on-keyboard keycode x y)
|
||||
(let ((c (integer->char keycode)))
|
||||
(case c
|
||||
((#\f)
|
||||
(set! *full-screen?* (not *full-screen?*))
|
||||
(full-screen *main-window* *full-screen?*))
|
||||
((#\esc #\etx #\q)
|
||||
(exit-viewer))
|
||||
((#\])
|
||||
(let ((zoomer (get-zoomer *camera*)))
|
||||
(zoom-in zoomer)
|
||||
(reshape)
|
||||
(post-redisplay *main-window*)))
|
||||
((#\[)
|
||||
(let ((zoomer (get-zoomer *camera*)))
|
||||
(zoom-out zoomer)
|
||||
(reshape)
|
||||
(post-redisplay *main-window*))))))
|
||||
|
||||
(define (register-glut-callbacks)
|
||||
;; The trampolines allow the handlers to be overridden at runtime by
|
||||
;; an attached Guile REPL client.
|
||||
(set-display-callback (lambda () (on-display)))
|
||||
(set-reshape-callback (lambda (w h) (on-reshape w h)))
|
||||
(set-keyboard-callback (lambda (k x y) (on-keyboard k x y)))
|
||||
(set-special-callback (lambda (k x y) (on-special k x y)))
|
||||
(set-mouse-callback (lambda (b s x y) (on-mouse b s x y)))
|
||||
(set-motion-callback (lambda (x y) (on-motion x y)))
|
||||
(set-visibility-callback (lambda (visible?) (on-visibility visible?)))
|
||||
(set-idle-callback (lambda () (on-idle))))
|
||||
|
||||
(define* (run-main #:key
|
||||
(position #f)
|
||||
(size #f)
|
||||
(title "Inspekt3d"))
|
||||
(initialize-glut #:window-position position
|
||||
#:window-size size
|
||||
#:display-mode (display-mode rgba alpha double depth))
|
||||
(set! *main-window* (make-window title))
|
||||
(set! *camera* (make <camera>))
|
||||
(set! *shader* (make <shader>))
|
||||
(setup *shader*)
|
||||
|
||||
(register-glut-callbacks)
|
||||
(glut-set-option (glut-option glut-action-on-window-close)
|
||||
glut-close-action-mainloop-returns)
|
||||
(set-gl-clear-color 0 0 0 1)
|
||||
(set-gl-clear-depth 1)
|
||||
|
||||
(gl-enable (enable-cap depth-test))
|
||||
(setup-for-display)
|
||||
|
||||
(glut-main-loop)
|
||||
|
||||
(cleanup-for-exit)
|
||||
(unlock-mutex *run-mutex*))
|
||||
|
||||
(define (viewer-main args)
|
||||
(if (not (try-mutex *run-mutex*))
|
||||
(error "Viewer already running.")
|
||||
(apply run-main args)))
|
||||
|
||||
(define (set-shape new-shape new-bounds new-resolution)
|
||||
"set-shape shape bounds resolution
|
||||
Sets the shape to display. When the shape parameter is #nil, this
|
||||
function deallocates the current mesh."
|
||||
(lock-mutex *shape-mutex*)
|
||||
(with-throw-handler #t
|
||||
(lambda ()
|
||||
(unless (null? *new-mesh*)
|
||||
(delete-mesh *new-mesh*))
|
||||
(if (null? new-shape)
|
||||
(begin
|
||||
(set! *new-mesh* #nil)
|
||||
(set! *new-bounds* #nil))
|
||||
(begin
|
||||
(set! *new-mesh*
|
||||
(shape->in-memory-mesh new-shape new-bounds new-resolution))
|
||||
(set! *new-bounds* new-bounds)))
|
||||
(set! *shape-changed?* #t))
|
||||
#f)
|
||||
(unlock-mutex *shape-mutex*))
|
||||
(export set-shape)
|
||||
|
||||
;;; TODO: make multiple viewers possible (using a class)
|
||||
;;; TODO: for now, only one viewer allowed
|
||||
(define (make-viewer . args)
|
||||
(call-with-new-thread
|
||||
(lambda ()
|
||||
(viewer-main args))))
|
||||
(export make-viewer)
|
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Reference in New Issue