<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Sampler — Gallium v0.3 documentation</title> <link rel="stylesheet" href="../_static/default.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../', VERSION: '0.3', COLLAPSE_MODINDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <link rel="top" title="Gallium v0.3 documentation" href="../index.html" /> <link rel="up" title="CSO" href="../cso.html" /> <link rel="next" title="Shader" href="shader.html" /> <link rel="prev" title="Rasterizer" href="rasterizer.html" /> </head> <body> <div class="related"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="shader.html" title="Shader" accesskey="N">next</a> |</li> <li class="right" > <a href="rasterizer.html" title="Rasterizer" accesskey="P">previous</a> |</li> <li><a href="../index.html">Gallium v0.3 documentation</a> »</li> <li><a href="../cso.html" accesskey="U">CSO</a> »</li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <div class="section" id="sampler"> <h1>Sampler<a class="headerlink" href="#sampler" title="Permalink to this headline">¶</a></h1> <p>Texture units have many options for selecting texels from loaded textures; this state controls an individual texture unit’s texel-sampling settings.</p> <p>Texture coordinates are always treated as four-dimensional, and referred to with the traditional (S, T, R, Q) notation.</p> <div class="section" id="members"> <h2>Members<a class="headerlink" href="#members" title="Permalink to this headline">¶</a></h2> <p>XXX undocumented compare_mode, compare_func</p> <dl class="docutils"> <dt>wrap_s</dt> <dd>How to wrap the S coordinate. One of PIPE_TEX_WRAP.</dd> <dt>wrap_t</dt> <dd>How to wrap the T coordinate. One of PIPE_TEX_WRAP.</dd> <dt>wrap_r</dt> <dd>How to wrap the R coordinate. One of PIPE_TEX_WRAP.</dd> <dt>min_img_filter</dt> <dd>The filter to use when minifying texels. One of PIPE_TEX_FILTER.</dd> <dt>min_mip_filter</dt> <dd>The filter to use when minifying mipmapped textures. One of PIPE_TEX_FILTER.</dd> <dt>mag_img_filter</dt> <dd>The filter to use when magnifying texels. One of PIPE_TEX_FILTER.</dd> <dt>normalized_coords</dt> <dd>Whether the texture coordinates are normalized. If normalized, they will always be in [0, 1]. If not, they will be in the range of each dimension of the loaded texture.</dd> <dt>prefilter</dt> <dd>XXX From the Doxy, “weird sampling state exposed by some APIs.” Refine.</dd> <dt>lod_bias</dt> <dd>The bias to apply to the level of detail.</dd> <dt>min_lod</dt> <dd>Minimum level of detail, used to clamp LoD after bias.</dd> <dt>max_lod</dt> <dd>Maximum level of detail, used to clamp LoD after bias.</dd> <dt>border_color</dt> <dd>RGBA color used for out-of-bounds coordinates.</dd> <dt>max_anisotropy</dt> <dd>Maximum filtering to apply anisotropically to textures. Setting this to 1.0 effectively disables anisotropic filtering.</dd> </dl> </div> </div> </div> </div> </div> <div class="sphinxsidebar"> <div class="sphinxsidebarwrapper"> <h3><a href="../index.html">Table Of Contents</a></h3> <ul> <li><a class="reference external" href="">Sampler</a><ul> <li><a class="reference external" href="#members">Members</a></li> </ul> </li> </ul> <h4>Previous topic</h4> <p class="topless"><a href="rasterizer.html" title="previous chapter">Rasterizer</a></p> <h4>Next topic</h4> <p class="topless"><a href="shader.html" title="next chapter">Shader</a></p> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../_sources/cso/sampler.txt" rel="nofollow">Show Source</a></li> </ul> <div id="searchbox" style="display: none"> <h3>Quick search</h3> <form class="search" action="../search.html" method="get"> <input type="text" name="q" size="18" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> <p class="searchtip" style="font-size: 90%"> Enter search terms or a module, class or function name. </p> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <div class="clearer"></div> </div> <div class="related"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="shader.html" title="Shader" >next</a> |</li> <li class="right" > <a href="rasterizer.html" title="Rasterizer" >previous</a> |</li> <li><a href="../index.html">Gallium v0.3 documentation</a> »</li> <li><a href="../cso.html" >CSO</a> »</li> </ul> </div> <div class="footer"> © Copyright 2009, VMWare, X.org, Nouveau. 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