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| author | David Thompson <dthompson2@worcester.edu> | 2023-12-28 11:23:49 -0500 |
|---|---|---|
| committer | David Thompson <dthompson2@worcester.edu> | 2023-12-28 11:23:49 -0500 |
| commit | 25c5eac5e6ca1035db1eddd7bea9ac78531da57e (patch) | |
| tree | 96377006bbfee75bcf0ce208c1ef89cbdfa5b803 /manuals/chickadee/Viewports.html | |
| parent | 5b2e467a7e5e2ffbb0cbbf2557283be891d8206b (diff) | |
Delete manuals!
Good riddance! These are hosted on files.dthompson.us now!
Diffstat (limited to 'manuals/chickadee/Viewports.html')
| -rw-r--r-- | manuals/chickadee/Viewports.html | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/manuals/chickadee/Viewports.html b/manuals/chickadee/Viewports.html deleted file mode 100644 index c60adc3..0000000 --- a/manuals/chickadee/Viewports.html +++ /dev/null @@ -1,163 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> -<html> -<!-- Copyright (C) 2017-2023 David Thompson dthompson2@worcester.edu - -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>Viewports (The Chickadee Game Toolkit)</title> - -<meta name="description" content="Viewports (The Chickadee Game Toolkit)" /> -<meta name="keywords" content="Viewports (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="Render-Settings.html" rel="next" title="Render Settings" /> -<link href="Framebuffers.html" rel="prev" title="Framebuffers" /> -<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="Viewports"></span><div class="header"> -<p> -Next: <a href="Render-Settings.html" accesskey="n" rel="next">Render Settings</a>, Previous: <a href="Framebuffers.html" accesskey="p" rel="prev">Framebuffers</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="Viewports-1"></span><h4 class="subsection">5.3.15 Viewports</h4> - -<p>A viewport represents a subset of the screen (or framebuffer). When -rendering a frame, the resulting image will only appear within that -viewport. These aren’t often needed, and Chickadee’s default viewport -occupies the entire screen, but there are certain situations where -they are useful. For example, a split-screen multiplayer game may -render to two different viewports, each occupying a different half of -the screen. -</p> -<p>The <code>(chickadee graphics viewport)</code> module provides the following -API: -</p> -<dl> -<dt id="index-make_002dviewport">Procedure: <strong>make-viewport</strong> <em>x y width height [#:clear-color] [#:clear-flags]</em></dt> -<dd> -<p>Create a viewport that covers an area of the window starting from -coordinates (<var>x</var>, <var>y</var>) and spanning <var>width</var> <code>x</code> -<var>height</var> pixels. Fill the viewport with <var>clear-color</var> when -clearing the screen. Clear the buffers denoted by the list of symbols -in <var>clear-flags</var>. -</p> -<p>Possible values for <var>clear-flags</var> are <var>color-buffer</var>, -<var>depth-buffer</var>, <var>accum-buffer</var>, and <var>stencil-buffer</var>. -</p></dd></dl> - -<dl> -<dt id="index-viewport_003f">Procedure: <strong>viewport?</strong> <em>obj</em></dt> -<dd><p>Return <code>#t</code> if <var>obj</var> is a viewport. -</p></dd></dl> - -<dl> -<dt id="index-viewport_002dx">Procedure: <strong>viewport-x</strong> <em>viewport</em></dt> -<dd><p>Return the left edge of <var>viewport</var>. -</p></dd></dl> - -<dl> -<dt id="index-viewport_002dy">Procedure: <strong>viewport-y</strong> <em>viewport</em></dt> -<dd><p>Return the bottom edge of <var>viewport</var>. -</p></dd></dl> - -<dl> -<dt id="index-viewport_002dwidth">Procedure: <strong>viewport-width</strong> <em>viewport</em></dt> -<dd><p>Return the width of <var>viewport</var>. -</p></dd></dl> - -<dl> -<dt id="index-viewport_002dheight">Procedure: <strong>viewport-height</strong> <em>viewport</em></dt> -<dd><p>Return the height of <var>viewport</var>. -</p></dd></dl> - -<dl> -<dt id="index-viewport_002dclear_002dcolor">Procedure: <strong>viewport-clear-color</strong> <em>viewport</em></dt> -<dd><p>Return the clear color for <var>viewport</var>. -</p></dd></dl> - -<dl> -<dt id="index-viewport_002dclear_002dflags">Procedure: <strong>viewport-clear-flags</strong> <em>viewport</em></dt> -<dd><p>Return the list of clear flags for <var>viewport</var>. -</p></dd></dl> - -<dl> -<dt id="index-current_002dviewport">Procedure: <strong>current-viewport</strong></dt> -<dd><p>Return the current viewport. -</p></dd></dl> - -<dl> -<dt id="index-g_003aviewport">Variable: <strong>g:viewport</strong></dt> -<dd><p>Render state for viewports (see <a href="Rendering-Engine.html">Rendering Engine</a>.) -</p></dd></dl> - - - - -</body> -</html> |