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| author | David Thompson <dthompson2@worcester.edu> | 2021-10-07 20:17:50 -0400 |
|---|---|---|
| committer | David Thompson <dthompson2@worcester.edu> | 2021-10-07 20:17:50 -0400 |
| commit | 0e699be281c8dea53e589e08a5831837e0eae7ea (patch) | |
| tree | 4266aebec927b13ca56410be1901e3ee78dff49e /manuals/chickadee/3D-Models.html | |
| parent | 38daa330f2194de5f39cd41b270c89d7b2e94427 (diff) | |
Updates for Chickadee 0.8.0 and Guile-SDL2 0.7.0.
Diffstat (limited to 'manuals/chickadee/3D-Models.html')
| -rw-r--r-- | manuals/chickadee/3D-Models.html | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/manuals/chickadee/3D-Models.html b/manuals/chickadee/3D-Models.html deleted file mode 100644 index 6d0f7c7..0000000 --- a/manuals/chickadee/3D-Models.html +++ /dev/null @@ -1,157 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> -<html> -<!-- Copyright (C) 2017-2020 David Thompson davet@gnu.org - -Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 -or any later version published by the Free Software Foundation; -with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. -A copy of the license is included in the section entitled "GNU -Free Documentation License". - -A copy of the license is also available from the Free Software -Foundation Web site at http://www.gnu.org/licenses/fdl.html. - - -* Chickadee: (chickadee). Game programming toolkit for Guile. - -The document was typeset with -http://www.texinfo.org/ (GNU Texinfo). - --> -<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ --> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> -<title>3D Models (The Chickadee Game Toolkit)</title> - -<meta name="description" content="3D Models (The Chickadee Game Toolkit)"> -<meta name="keywords" content="3D Models (The Chickadee Game Toolkit)"> -<meta name="resource-type" content="document"> -<meta name="distribution" content="global"> -<meta name="Generator" content="makeinfo"> -<link href="index.html" rel="start" title="Top"> -<link href="Index.html" rel="index" title="Index"> -<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> -<link href="Graphics.html" rel="up" title="Graphics"> -<link href="Blending.html" rel="next" title="Blending"> -<link href="Tile-Maps.html" rel="prev" title="Tile Maps"> -<style type="text/css"> -<!-- -a.summary-letter {text-decoration: none} -blockquote.indentedblock {margin-right: 0em} -div.display {margin-left: 3.2em} -div.example {margin-left: 3.2em} -div.lisp {margin-left: 3.2em} -kbd {font-style: oblique} -pre.display {font-family: inherit} -pre.format {font-family: inherit} -pre.menu-comment {font-family: serif} -pre.menu-preformatted {font-family: serif} -span.nolinebreak {white-space: nowrap} -span.roman {font-family: initial; font-weight: normal} -span.sansserif {font-family: sans-serif; font-weight: normal} -ul.no-bullet {list-style: none} -@media (min-width: 1140px) { - body { - margin-left: 14rem; - margin-right: 4rem; - max-width: 52rem; - } -} - -@media (min-width: 800px) and (max-width: 1140px) { - body { - margin-left: 6rem; - margin-right: 4rem; - max-width: 52rem; - } -} - -@media (max-width: 800px) { - body { - margin: 1rem; - } -} - ---> -</style> -<link rel="stylesheet" type="text/css" href="https://dthompson.us/css/dthompson.css"> - - -</head> - -<body lang="en"> -<span id="g_t3D-Models"></span><div class="header"> -<p> -Next: <a href="Blending.html" accesskey="n" rel="next">Blending</a>, Previous: <a href="Tile-Maps.html" accesskey="p" rel="prev">Tile Maps</a>, Up: <a href="Graphics.html" accesskey="u" rel="up">Graphics</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html" title="Index" rel="index">Index</a>]</p> -</div> -<hr> -<span id="g_t3D-Models-1"></span><h4 class="subsection">2.3.9 3D Models</h4> - -<p><em>Disclaimer: Chickadee is alpha software, but 3D model support is -even more alpha than that. There are many missing features in both -the model loading and rendering components, so set your expectations -accordingly!</em> -</p> -<p>Chickadee can load and render 3D models in the classic OBJ and more -modern glTF 2.0 formats. -</p> -<p>Here’s some basic boilerplate to render a 3D model: -</p> -<div class="example"> -<pre class="example">(use-modules (chickadee) - (chickadee math) - (chickadee math matrix) - (chickadee graphics model)) - -(define model #f) -(define projection-matrix - (perspective-projection (/ pi 3.0) (/ 4.0 3.0) 0.1 500.0)) -;; Adjust these 2 matrices so that you can actually see the model. -(define view-matrix (make-identity-matrix4)) -(define model-matrix (make-identity-matrix4)) - -(define (load) - (set! model (load-obj "model.obj")) - -(define (draw alpha) - (with-projection projection-matrix - (with-depth-test #t - (draw-model model model-matrix view-matrix)))) - -(run-game #:load load #:draw draw) -</pre></div> - -<dl> -<dt id="index-load_002dobj">Procedure: <strong>load-obj</strong> <em>file-name</em></dt> -<dd><p>Load the OBJ formatted model in <var>file-name</var> and return a 3D model -object. -</p> -<p>OBJ models are rendered using a Phong lighting model, which is a -work-in-progress. -</p></dd></dl> - -<dl> -<dt id="index-load_002dgltf">Procedure: <strong>load-gltf</strong> <em>file-name</em></dt> -<dd><p>Load the glTF 2.0 formatted model in <var>file-name</var> and return a 3D -model object. -</p> -<p>glTF models are rendered using a physically based lighting model, -which is currently a stub to be implemented later. -</p></dd></dl> - -<dl> -<dt id="index-model_003f">Procedure: <strong>model?</strong> <em>obj</em></dt> -<dd><p>Return <code>#t</code> if <var>obj</var> is a 3D model. -</p></dd></dl> - -<dl> -<dt id="index-draw_002dmodel">Procedure: <strong>draw-model</strong> <em>model model-matrix view-matrix</em></dt> -<dd><p>Render <var>model</var> with the transformation matrices <var>model-matrix</var> -and <var>view-matrix</var> applied. -</p></dd></dl> - - - - -</body> -</html> |