upstream-man-pages/man2/xhtml/glEnable.xml

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   3 <?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>glEnable</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glEnable"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glEnable — enable or disable server-side GL capabilities</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glEnable</b>(</code></td><td>GLenum  </td><td><var class="pdparam">cap</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>cap</code></em></span></dt><dd><p>
   4                     Specifies a symbolic constant indicating a GL capability.
   5                 </p></dd></dl></div></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glDisable</b>(</code></td><td>GLenum  </td><td><var class="pdparam">cap</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters2"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>cap</code></em></span></dt><dd><p>
   6                     Specifies a symbolic constant indicating a GL capability.
   7                 </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
   8             <code class="function">glEnable</code> and <a class="citerefentry" href="glDisable.xml"><span class="citerefentry"><span class="refentrytitle">glDisable</span></span></a> enable and disable various capabilities.
   9             Use <a class="citerefentry" href="glIsEnabled.xml"><span class="citerefentry"><span class="refentrytitle">glIsEnabled</span></span></a> or <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> to determine the current setting
  10             of any capability. The initial value for each capability with the
  11             exception of <code class="constant">GL_DITHER</code> and <code class="constant">GL_MULTISAMPLE</code> is <code class="constant">GL_FALSE</code>. The initial value for
  12             <code class="constant">GL_DITHER</code> and <code class="constant">GL_MULTISAMPLE</code> is <code class="constant">GL_TRUE</code>.
  13         </p><p>
  14             Both <code class="function">glEnable</code> and <a class="citerefentry" href="glDisable.xml"><span class="citerefentry"><span class="refentrytitle">glDisable</span></span></a> take a single argument, <em class="parameter"><code>cap</code></em>,
  15             which can assume one of the following values:
  16         </p><div class="variablelist"><dl><dt><span class="term"><code class="constant">GL_ALPHA_TEST</code></span></dt><dd><p>
  17                           </p><p>
  18                         If enabled,
  19                         do alpha testing. See
  20                         <a class="citerefentry" href="glAlphaFunc.xml"><span class="citerefentry"><span class="refentrytitle">glAlphaFunc</span></span></a>.
  21                     </p></dd><dt><span class="term"><code class="constant">GL_AUTO_NORMAL</code></span></dt><dd><p>
  22                         </p><p>
  23                         If enabled,
  24                         generate normal vectors when either
  25                         <code class="constant">GL_MAP2_VERTEX_3</code> or
  26                         <code class="constant">GL_MAP2_VERTEX_4</code> is used to generate vertices.
  27                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
  28                     </p></dd><dt><span class="term"><code class="constant">GL_BLEND</code></span></dt><dd><p>
  29                         </p><p>
  30                         If enabled,
  31                         blend the computed fragment color values with the values in the color
  32                         buffers. See <a class="citerefentry" href="glBlendFunc.xml"><span class="citerefentry"><span class="refentrytitle">glBlendFunc</span></span></a>.
  33                     </p></dd><dt><span class="term"><code class="constant">GL_CLIP_PLANE</code><span class="emphasis"><em>i</em></span></span></dt><dd><p>
  34                         </p><p>
  35                         If enabled,
  36                         clip geometry against user-defined clipping plane <span class="emphasis"><em>i</em></span>.
  37                         See <a class="citerefentry" href="glClipPlane.xml"><span class="citerefentry"><span class="refentrytitle">glClipPlane</span></span></a>.
  38                     </p></dd><dt><span class="term"><code class="constant">GL_COLOR_LOGIC_OP</code></span></dt><dd><p>
  39                         </p><p>
  40                         If enabled,
  41                         apply the currently selected logical operation to the computed fragment
  42                         color and color buffer values. See <a class="citerefentry" href="glLogicOp.xml"><span class="citerefentry"><span class="refentrytitle">glLogicOp</span></span></a>.
  43                     </p></dd><dt><span class="term"><code class="constant">GL_COLOR_MATERIAL</code></span></dt><dd><p>
  44                         </p><p>
  45                         If enabled,
  46                         have one or more material parameters track the current color.
  47                         See <a class="citerefentry" href="glColorMaterial.xml"><span class="citerefentry"><span class="refentrytitle">glColorMaterial</span></span></a>.
  48                     </p></dd><dt><span class="term"><code class="constant">GL_COLOR_SUM</code></span></dt><dd><p>
  49                         </p><p>
  50                         If enabled and no fragment shader is active,
  51                         add the secondary color value to the computed fragment color.
  52                         See <a class="citerefentry" href="glSecondaryColor.xml"><span class="citerefentry"><span class="refentrytitle">glSecondaryColor</span></span></a>.
  53                     </p></dd><dt><span class="term"><code class="constant">GL_COLOR_TABLE</code></span></dt><dd><p>
  54                         </p><p>
  55                         If enabled,
  56                         perform a color table lookup on the incoming RGBA color values.
  57                         See <a class="citerefentry" href="glColorTable.xml"><span class="citerefentry"><span class="refentrytitle">glColorTable</span></span></a>.
  58                     </p></dd><dt><span class="term"><code class="constant">GL_CONVOLUTION_1D</code></span></dt><dd><p>
  59                         </p><p>
  60                         If enabled,
  61                         perform a 1D convolution operation on incoming RGBA color values.
  62                         See <a class="citerefentry" href="glConvolutionFilter1D.xml"><span class="citerefentry"><span class="refentrytitle">glConvolutionFilter1D</span></span></a>.
  63                     </p></dd><dt><span class="term"><code class="constant">GL_CONVOLUTION_2D</code></span></dt><dd><p>
  64                         </p><p>
  65                         If enabled,
  66                         perform a 2D convolution operation on incoming RGBA color values.
  67                         See <a class="citerefentry" href="glConvolutionFilter2D.xml"><span class="citerefentry"><span class="refentrytitle">glConvolutionFilter2D</span></span></a>.
  68                     </p></dd><dt><span class="term"><code class="constant">GL_CULL_FACE</code></span></dt><dd><p>
  69                         </p><p>
  70                         If enabled,
  71                         cull polygons based on their winding in window coordinates.
  72                         See <a class="citerefentry" href="glCullFace.xml"><span class="citerefentry"><span class="refentrytitle">glCullFace</span></span></a>.
  73                     </p></dd><dt><span class="term"><code class="constant">GL_DEPTH_TEST</code></span></dt><dd><p>
  74                         </p><p>
  75                         If enabled,
  76                         do depth comparisons and update the depth buffer. Note that even if
  77                         the depth buffer exists and the depth mask is non-zero, the
  78                         depth buffer is not updated if the depth test is disabled. See
  79                         <a class="citerefentry" href="glDepthFunc.xml"><span class="citerefentry"><span class="refentrytitle">glDepthFunc</span></span></a> and
  80                         <a class="citerefentry" href="glDepthRange.xml"><span class="citerefentry"><span class="refentrytitle">glDepthRange</span></span></a>.
  81                     </p></dd><dt><span class="term"><code class="constant">GL_DITHER</code>     </span></dt><dd><p>
  82                         </p><p>
  83                         If enabled,
  84                         dither color components or indices before they are written to the
  85                         color buffer.
  86                     </p></dd><dt><span class="term"><code class="constant">GL_FOG</code></span></dt><dd><p>
  87                         </p><p>
  88                         If enabled and no fragment shader is active,
  89                         blend a fog color into the post-texturing color.
  90                         See <a class="citerefentry" href="glFog.xml"><span class="citerefentry"><span class="refentrytitle">glFog</span></span></a>.
  91                     </p></dd><dt><span class="term"><code class="constant">GL_HISTOGRAM</code></span></dt><dd><p>
  92                         </p><p>
  93                         If enabled,
  94                         histogram incoming RGBA color values.
  95                         See <a class="citerefentry" href="glHistogram.xml"><span class="citerefentry"><span class="refentrytitle">glHistogram</span></span></a>.
  96                     </p></dd><dt><span class="term"><code class="constant">GL_INDEX_LOGIC_OP</code></span></dt><dd><p>
  97                         </p><p>
  98                         If enabled,
  99                         apply the currently selected logical operation to the incoming index and color
 100                         buffer indices.
 101                         See <a class="citerefentry" href="glLogicOp.xml"><span class="citerefentry"><span class="refentrytitle">glLogicOp</span></span></a>.
 102                     </p></dd><dt><span class="term"><code class="constant">GL_LIGHT</code><span class="emphasis"><em>i</em></span></span></dt><dd><p>
 103                         </p><p>
 104                         If enabled,
 105                         include light <span class="emphasis"><em>i</em></span> in the evaluation of the lighting
 106                         equation. See <a class="citerefentry" href="glLightModel.xml"><span class="citerefentry"><span class="refentrytitle">glLightModel</span></span></a> and <a class="citerefentry" href="glLight.xml"><span class="citerefentry"><span class="refentrytitle">glLight</span></span></a>.
 107                     </p></dd><dt><span class="term"><code class="constant">GL_LIGHTING</code></span></dt><dd><p>
 108                         </p><p>
 109                         If enabled and no vertex shader is active,
 110                         use the current lighting parameters to compute the vertex color or index.
 111                         Otherwise, simply associate the current color or index with each
 112                         vertex. See
 113                         <a class="citerefentry" href="glMaterial.xml"><span class="citerefentry"><span class="refentrytitle">glMaterial</span></span></a>, <a class="citerefentry" href="glLightModel.xml"><span class="citerefentry"><span class="refentrytitle">glLightModel</span></span></a>, and <a class="citerefentry" href="glLight.xml"><span class="citerefentry"><span class="refentrytitle">glLight</span></span></a>.
 114                     </p></dd><dt><span class="term"><code class="constant">GL_LINE_SMOOTH</code></span></dt><dd><p>
 115                         </p><p>
 116                         If enabled,
 117                         draw lines with correct filtering.
 118                         Otherwise,
 119                         draw aliased lines.
 120                         See <a class="citerefentry" href="glLineWidth.xml"><span class="citerefentry"><span class="refentrytitle">glLineWidth</span></span></a>.
 121                     </p></dd><dt><span class="term"><code class="constant">GL_LINE_STIPPLE</code></span></dt><dd><p>
 122                         </p><p>
 123                         If enabled,
 124                         use the current line stipple pattern when drawing lines. See
 125                         <a class="citerefentry" href="glLineStipple.xml"><span class="citerefentry"><span class="refentrytitle">glLineStipple</span></span></a>.
 126                     </p></dd><dt><span class="term"><code class="constant">GL_MAP1_COLOR_4</code></span></dt><dd><p>
 127                         </p><p>
 128                         If enabled,
 129                         calls to
 130                         <a class="citerefentry" href="glEvalCoord1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord1</span></span></a>,
 131                         <a class="citerefentry" href="glEvalMesh1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh1</span></span></a>, and
 132                         <a class="citerefentry" href="glEvalPoint1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint1</span></span></a> generate RGBA values.
 133                         See <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>.
 134                     </p></dd><dt><span class="term"><code class="constant">GL_MAP1_INDEX</code></span></dt><dd><p>
 135                         </p><p>
 136                         If enabled,
 137                         calls to
 138                         <a class="citerefentry" href="glEvalCoord1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord1</span></span></a>,
 139                         <a class="citerefentry" href="glEvalMesh1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh1</span></span></a>, and
 140                         <a class="citerefentry" href="glEvalPoint1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint1</span></span></a> generate color indices.
 141                         See <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>.
 142                     </p></dd><dt><span class="term"><code class="constant">GL_MAP1_NORMAL</code></span></dt><dd><p>
 143                         </p><p>
 144                         If enabled,
 145                         calls to
 146                         <a class="citerefentry" href="glEvalCoord1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord1</span></span></a>,
 147                         <a class="citerefentry" href="glEvalMesh1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh1</span></span></a>, and
 148                         <a class="citerefentry" href="glEvalPoint1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint1</span></span></a> generate normals.
 149                         See <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>.
 150                     </p></dd><dt><span class="term"><code class="constant">GL_MAP1_TEXTURE_COORD_1</code></span></dt><dd><p>
 151                         </p><p>
 152                         If enabled,
 153                         calls to
 154                         <a class="citerefentry" href="glEvalCoord1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord1</span></span></a>,
 155                         <a class="citerefentry" href="glEvalMesh1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh1</span></span></a>, and
 156                         <a class="citerefentry" href="glEvalPoint1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint1</span></span></a> generate
 157                         <span class="emphasis"><em>s</em></span>
 158                         texture coordinates.
 159                         See <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>.
 160                     </p></dd><dt><span class="term"><code class="constant">GL_MAP1_TEXTURE_COORD_2</code></span></dt><dd><p>
 161                         </p><p>
 162                         If enabled,
 163                         calls to
 164                         <a class="citerefentry" href="glEvalCoord1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord1</span></span></a>,
 165                         <a class="citerefentry" href="glEvalMesh1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh1</span></span></a>, and
 166                         <a class="citerefentry" href="glEvalPoint1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint1</span></span></a> generate
 167                         <span class="emphasis"><em>s</em></span> and
 168                         <span class="emphasis"><em>t</em></span> texture coordinates.
 169                         See <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>.
 170                     </p></dd><dt><span class="term"><code class="constant">GL_MAP1_TEXTURE_COORD_3</code></span></dt><dd><p>
 171                         </p><p>
 172                         If enabled,
 173                         calls to
 174                         <a class="citerefentry" href="glEvalCoord1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord1</span></span></a>,
 175                         <a class="citerefentry" href="glEvalMesh1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh1</span></span></a>, and
 176                         <a class="citerefentry" href="glEvalPoint1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint1</span></span></a> generate
 177                         <span class="emphasis"><em>s</em></span>,
 178                         <span class="emphasis"><em>t</em></span>, and
 179                         <span class="emphasis"><em>r</em></span> texture coordinates.
 180                         See <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>.
 181                     </p></dd><dt><span class="term"><code class="constant">GL_MAP1_TEXTURE_COORD_4</code></span></dt><dd><p>
 182                         </p><p>
 183                         If enabled,
 184                         calls to
 185                         <a class="citerefentry" href="glEvalCoord1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord1</span></span></a>,
 186                         <a class="citerefentry" href="glEvalMesh1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh1</span></span></a>, and
 187                         <a class="citerefentry" href="glEvalPoint1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint1</span></span></a> generate
 188                         <span class="emphasis"><em>s</em></span>,
 189                         <span class="emphasis"><em>t</em></span>,
 190                         <span class="emphasis"><em>r</em></span>, and
 191                         <span class="emphasis"><em>q</em></span> texture coordinates.
 192                         See <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>.
 193                     </p></dd><dt><span class="term"><code class="constant">GL_MAP1_VERTEX_3</code></span></dt><dd><p>
 194                         </p><p>
 195                         If enabled,
 196                         calls to
 197                         <a class="citerefentry" href="glEvalCoord1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord1</span></span></a>,
 198                         <a class="citerefentry" href="glEvalMesh1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh1</span></span></a>, and
 199                         <a class="citerefentry" href="glEvalPoint1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint1</span></span></a> generate
 200                         <span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>, and <span class="emphasis"><em>z</em></span> vertex coordinates.
 201                         See <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>.
 202                     </p></dd><dt><span class="term"><code class="constant">GL_MAP1_VERTEX_4</code></span></dt><dd><p>
 203                         </p><p>
 204                         If enabled,
 205                         calls to
 206                         <a class="citerefentry" href="glEvalCoord1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord1</span></span></a>,
 207                         <a class="citerefentry" href="glEvalMesh1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh1</span></span></a>, and
 208                         <a class="citerefentry" href="glEvalPoint1.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint1</span></span></a> generate
 209                         homogeneous
 210                         <span class="emphasis"><em>x</em></span>,
 211                         <span class="emphasis"><em>y</em></span>,
 212                         <span class="emphasis"><em>z</em></span>, and
 213                         <span class="emphasis"><em>w</em></span> vertex coordinates.
 214                         See <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>.
 215                     </p></dd><dt><span class="term"><code class="constant">GL_MAP2_COLOR_4</code></span></dt><dd><p>
 216                         </p><p>
 217                         If enabled,
 218                         calls to
 219                         <a class="citerefentry" href="glEvalCoord2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord2</span></span></a>,
 220                         <a class="citerefentry" href="glEvalMesh2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh2</span></span></a>, and
 221                         <a class="citerefentry" href="glEvalPoint2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint2</span></span></a> generate RGBA values.
 222                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
 223                     </p></dd><dt><span class="term"><code class="constant">GL_MAP2_INDEX</code></span></dt><dd><p>
 224                         </p><p>
 225                         If enabled,
 226                         calls to
 227                         <a class="citerefentry" href="glEvalCoord2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord2</span></span></a>,
 228                         <a class="citerefentry" href="glEvalMesh2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh2</span></span></a>, and
 229                         <a class="citerefentry" href="glEvalPoint2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint2</span></span></a> generate color indices.
 230                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
 231                     </p></dd><dt><span class="term"><code class="constant">GL_MAP2_NORMAL</code></span></dt><dd><p>
 232                         </p><p>
 233                         If enabled,
 234                         calls to
 235                         <a class="citerefentry" href="glEvalCoord2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord2</span></span></a>,
 236                         <a class="citerefentry" href="glEvalMesh2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh2</span></span></a>, and
 237                         <a class="citerefentry" href="glEvalPoint2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint2</span></span></a> generate normals.
 238                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
 239                     </p></dd><dt><span class="term"><code class="constant">GL_MAP2_TEXTURE_COORD_1</code></span></dt><dd><p>
 240                         </p><p>
 241                         If enabled,
 242                         calls to
 243                         <a class="citerefentry" href="glEvalCoord2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord2</span></span></a>,
 244                         <a class="citerefentry" href="glEvalMesh2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh2</span></span></a>, and
 245                         <a class="citerefentry" href="glEvalPoint2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint2</span></span></a> generate
 246                         <span class="emphasis"><em>s</em></span>
 247                         texture coordinates.
 248                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
 249                     </p></dd><dt><span class="term"><code class="constant">GL_MAP2_TEXTURE_COORD_2</code></span></dt><dd><p>
 250                         </p><p>
 251                         If enabled,
 252                         calls to
 253                         <a class="citerefentry" href="glEvalCoord2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord2</span></span></a>,
 254                         <a class="citerefentry" href="glEvalMesh2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh2</span></span></a>, and
 255                         <a class="citerefentry" href="glEvalPoint2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint2</span></span></a> generate
 256                         <span class="emphasis"><em>s</em></span> and
 257                         <span class="emphasis"><em>t</em></span> texture coordinates.
 258                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
 259                     </p></dd><dt><span class="term"><code class="constant">GL_MAP2_TEXTURE_COORD_3</code></span></dt><dd><p>
 260                         </p><p>
 261                         If enabled,
 262                         calls to
 263                         <a class="citerefentry" href="glEvalCoord2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord2</span></span></a>,
 264                         <a class="citerefentry" href="glEvalMesh2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh2</span></span></a>, and
 265                         <a class="citerefentry" href="glEvalPoint2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint2</span></span></a> generate
 266                         <span class="emphasis"><em>s</em></span>,
 267                         <span class="emphasis"><em>t</em></span>, and
 268                         <span class="emphasis"><em>r</em></span> texture coordinates.
 269                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
 270                     </p></dd><dt><span class="term"><code class="constant">GL_MAP2_TEXTURE_COORD_4</code></span></dt><dd><p>
 271                         </p><p>
 272                         If enabled,
 273                         calls to
 274                         <a class="citerefentry" href="glEvalCoord2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord2</span></span></a>,
 275                         <a class="citerefentry" href="glEvalMesh2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh2</span></span></a>, and
 276                         <a class="citerefentry" href="glEvalPoint2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint2</span></span></a> generate
 277                         <span class="emphasis"><em>s</em></span>,
 278                         <span class="emphasis"><em>t</em></span>,
 279                         <span class="emphasis"><em>r</em></span>, and
 280                         <span class="emphasis"><em>q</em></span> texture coordinates.
 281                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
 282                     </p></dd><dt><span class="term"><code class="constant">GL_MAP2_VERTEX_3</code></span></dt><dd><p>
 283                         </p><p>
 284                         If enabled,
 285                         calls to
 286                         <a class="citerefentry" href="glEvalCoord2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord2</span></span></a>,
 287                         <a class="citerefentry" href="glEvalMesh2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh2</span></span></a>, and
 288                         <a class="citerefentry" href="glEvalPoint2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint2</span></span></a> generate
 289                         <span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>, and <span class="emphasis"><em>z</em></span> vertex coordinates.
 290                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
 291                     </p></dd><dt><span class="term"><code class="constant">GL_MAP2_VERTEX_4</code></span></dt><dd><p>
 292                         </p><p>
 293                         If enabled,
 294                         calls to
 295                         <a class="citerefentry" href="glEvalCoord2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalCoord2</span></span></a>,
 296                         <a class="citerefentry" href="glEvalMesh2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalMesh2</span></span></a>, and
 297                         <a class="citerefentry" href="glEvalPoint2.xml"><span class="citerefentry"><span class="refentrytitle">glEvalPoint2</span></span></a> generate
 298                         homogeneous
 299                         <span class="emphasis"><em>x</em></span>,
 300                         <span class="emphasis"><em>y</em></span>,
 301                         <span class="emphasis"><em>z</em></span>, and
 302                         <span class="emphasis"><em>w</em></span> vertex coordinates.
 303                         See <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>.
 304                     </p></dd><dt><span class="term"><code class="constant">GL_MINMAX</code></span></dt><dd><p>
 305                         </p><p>
 306                         If enabled,
 307                         compute the minimum and maximum values of incoming RGBA color values.
 308                         See <a class="citerefentry" href="glMinmax.xml"><span class="citerefentry"><span class="refentrytitle">glMinmax</span></span></a>.
 309                     </p></dd><dt><span class="term"><code class="constant">GL_MULTISAMPLE</code></span></dt><dd><p>
 310                         </p><p>
 311                         If enabled,
 312                         use multiple fragment samples in computing the final color of a pixel.
 313                         See <a class="citerefentry" href="glSampleCoverage.xml"><span class="citerefentry"><span class="refentrytitle">glSampleCoverage</span></span></a>.
 314                     </p></dd><dt><span class="term"><code class="constant">GL_NORMALIZE</code></span></dt><dd><p>
 315                         </p><p>
 316                         If enabled and no vertex shader is active,
 317                         normal vectors are normalized to unit length
 318                         after transformation and before lighting.  This method is generally
 319                         less efficient than <code class="constant">GL_RESCALE_NORMAL</code>. See
 320                         <a class="citerefentry" href="glNormal.xml"><span class="citerefentry"><span class="refentrytitle">glNormal</span></span></a> and
 321                         <a class="citerefentry" href="glNormalPointer.xml"><span class="citerefentry"><span class="refentrytitle">glNormalPointer</span></span></a>.
 322                     </p></dd><dt><span class="term"><code class="constant">GL_POINT_SMOOTH</code></span></dt><dd><p>
 323                         </p><p>
 324                         If enabled,
 325                         draw points with proper filtering.
 326                         Otherwise,
 327                         draw aliased points.
 328                         See <a class="citerefentry" href="glPointSize.xml"><span class="citerefentry"><span class="refentrytitle">glPointSize</span></span></a>.
 329                     </p></dd><dt><span class="term"><code class="constant">GL_POINT_SPRITE</code></span></dt><dd><p>
 330                         </p><p>
 331                         If enabled,
 332                         calculate texture coordinates for points based on texture
 333                         environment and point parameter settings.  Otherwise texture coordinates
 334                         are constant across points.
 335                     </p></dd><dt><span class="term"><code class="constant">GL_POLYGON_OFFSET_FILL</code></span></dt><dd><p>
 336                         </p><p>
 337                         If enabled, and if the polygon is rendered in
 338                         <code class="constant">GL_FILL</code> mode, an offset is added to depth values of a polygon's
 339                         fragments before the depth comparison is performed.
 340                         See <a class="citerefentry" href="glPolygonOffset.xml"><span class="citerefentry"><span class="refentrytitle">glPolygonOffset</span></span></a>.
 341                     </p></dd><dt><span class="term"><code class="constant">GL_POLYGON_OFFSET_LINE</code></span></dt><dd><p>
 342                         </p><p>
 343                         If enabled, and if the polygon is rendered in
 344                         <code class="constant">GL_LINE</code> mode, an offset is added to depth values of a polygon's
 345                         fragments before the depth comparison is performed.
 346                         See <a class="citerefentry" href="glPolygonOffset.xml"><span class="citerefentry"><span class="refentrytitle">glPolygonOffset</span></span></a>.
 347                     </p></dd><dt><span class="term"><code class="constant">GL_POLYGON_OFFSET_POINT</code></span></dt><dd><p>
 348                         </p><p>
 349                         If enabled, an offset is added to depth values of a polygon's fragments
 350                         before the depth comparison is performed, if the polygon is rendered in
 351                         <code class="constant">GL_POINT</code> mode. See <a class="citerefentry" href="glPolygonOffset.xml"><span class="citerefentry"><span class="refentrytitle">glPolygonOffset</span></span></a>.
 352                     </p></dd><dt><span class="term"><code class="constant">GL_POLYGON_SMOOTH</code></span></dt><dd><p>
 353                         </p><p>
 354                         If enabled, draw polygons with proper filtering.
 355                         Otherwise, draw aliased polygons. For correct antialiased polygons,
 356                         an alpha buffer is needed and the polygons must be sorted front to
 357                         back.
 358                     </p></dd><dt><span class="term"><code class="constant">GL_POLYGON_STIPPLE</code></span></dt><dd><p>
 359                         </p><p>
 360                         If enabled,
 361                         use the current polygon stipple pattern when rendering
 362                         polygons. See <a class="citerefentry" href="glPolygonStipple.xml"><span class="citerefentry"><span class="refentrytitle">glPolygonStipple</span></span></a>.
 363                     </p></dd><dt><span class="term"><code class="constant">GL_POST_COLOR_MATRIX_COLOR_TABLE</code></span></dt><dd><p>
 364                         </p><p>
 365                         If enabled,
 366                         perform a color table lookup on RGBA color values after color matrix
 367                         transformation.
 368                         See <a class="citerefentry" href="glColorTable.xml"><span class="citerefentry"><span class="refentrytitle">glColorTable</span></span></a>.
 369                     </p></dd><dt><span class="term"><code class="constant">GL_POST_CONVOLUTION_COLOR_TABLE</code></span></dt><dd><p>
 370                         </p><p>
 371                         If enabled,
 372                         perform a color table lookup on RGBA color values after convolution.
 373                         See <a class="citerefentry" href="glColorTable.xml"><span class="citerefentry"><span class="refentrytitle">glColorTable</span></span></a>.
 374                     </p></dd><dt><span class="term"><code class="constant">GL_RESCALE_NORMAL</code></span></dt><dd><p>
 375                         </p><p>
 376                         If enabled and no vertex shader is active,
 377                         normal vectors are scaled after transformation and before
 378                         lighting by a factor computed from the modelview matrix.  If the
 379                         modelview matrix scales space uniformly, this has the effect of
 380                         restoring the transformed normal to unit length.  This method is generally
 381                         more efficient than <code class="constant">GL_NORMALIZE</code>. See
 382                         <a class="citerefentry" href="glNormal.xml"><span class="citerefentry"><span class="refentrytitle">glNormal</span></span></a> and
 383                         <a class="citerefentry" href="glNormalPointer.xml"><span class="citerefentry"><span class="refentrytitle">glNormalPointer</span></span></a>.
 384                     </p></dd><dt><span class="term"><code class="constant">GL_SAMPLE_ALPHA_TO_COVERAGE</code></span></dt><dd><p>
 385                         </p><p>
 386                         If enabled,
 387                         compute a temporary coverage value where each bit is determined by the
 388                         alpha value at the corresponding sample location.  The temporary coverage
 389                         value is then ANDed with the fragment coverage value.
 390                     </p></dd><dt><span class="term"><code class="constant">GL_SAMPLE_ALPHA_TO_ONE</code></span></dt><dd><p>
 391                         </p><p>
 392                         If enabled,
 393                         each sample alpha value is replaced by the maximum representable alpha value.
 394                     </p></dd><dt><span class="term"><code class="constant">GL_SAMPLE_COVERAGE</code></span></dt><dd><p>
 395                         </p><p>
 396                         If enabled,
 397                         the fragment's coverage is ANDed with the temporary coverage value.  If
 398                         <code class="constant">GL_SAMPLE_COVERAGE_INVERT</code> is set to <code class="constant">GL_TRUE</code>, invert the coverage
 399                         value.
 400                         See <a class="citerefentry" href="glSampleCoverage.xml"><span class="citerefentry"><span class="refentrytitle">glSampleCoverage</span></span></a>.
 401                     </p></dd><dt><span class="term"><code class="constant">GL_SEPARABLE_2D</code></span></dt><dd><p>
 402                         </p><p>
 403                         If enabled, perform a two-dimensional convolution operation using a separable
 404                         convolution filter on incoming RGBA color values.
 405                         See <a class="citerefentry" href="glSeparableFilter2D.xml"><span class="citerefentry"><span class="refentrytitle">glSeparableFilter2D</span></span></a>.
 406                     </p></dd><dt><span class="term"><code class="constant">GL_SCISSOR_TEST</code></span></dt><dd><p>
 407                         </p><p>
 408                         If enabled,
 409                         discard fragments that are outside the scissor rectangle.
 410                         See <a class="citerefentry" href="glScissor.xml"><span class="citerefentry"><span class="refentrytitle">glScissor</span></span></a>.
 411                     </p></dd><dt><span class="term"><code class="constant">GL_STENCIL_TEST</code></span></dt><dd><p>
 412                         </p><p>
 413                         If enabled,
 414                         do stencil testing and update the stencil buffer.
 415                         See <a class="citerefentry" href="glStencilFunc.xml"><span class="citerefentry"><span class="refentrytitle">glStencilFunc</span></span></a> and <a class="citerefentry" href="glStencilOp.xml"><span class="citerefentry"><span class="refentrytitle">glStencilOp</span></span></a>.
 416                     </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_1D</code></span></dt><dd><p>
 417                         </p><p>
 418                         If enabled and no fragment shader is active,
 419                         one-dimensional texturing is performed
 420                         (unless two- or three-dimensional or cube-mapped texturing is also enabled).
 421                         See <a class="citerefentry" href="glTexImage1D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage1D</span></span></a>.
 422                     </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_2D</code></span></dt><dd><p>
 423                         </p><p>
 424                         If enabled and no fragment shader is active,
 425                         two-dimensional texturing is performed
 426                         (unless three-dimensional or cube-mapped texturing is also enabled).
 427                         See <a class="citerefentry" href="glTexImage2D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage2D</span></span></a>.
 428                     </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_3D</code></span></dt><dd><p>
 429                         </p><p>
 430                         If enabled and no fragment shader is active,
 431                         three-dimensional texturing is performed
 432                         (unless cube-mapped texturing is also enabled).
 433                         See <a class="citerefentry" href="glTexImage3D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage3D</span></span></a>.
 434                     </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_CUBE_MAP</code></span></dt><dd><p>
 435                         </p><p>
 436                         If enabled and no fragment shader is active,
 437                         cube-mapped texturing is performed.
 438                         See <a class="citerefentry" href="glTexImage2D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage2D</span></span></a>.
 439                     </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_GEN_Q</code></span></dt><dd><p>
 440                         </p><p>
 441                         If enabled and no vertex shader is active,
 442                         the <span class="emphasis"><em>q</em></span> texture coordinate is computed using
 443                         the texture generation function defined with <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a>.
 444                         Otherwise, the current <span class="emphasis"><em>q</em></span> texture coordinate is used.
 445                         See <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a>.
 446                     </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_GEN_R</code></span></dt><dd><p>
 447                         </p><p>
 448                         If enabled and no vertex shader is active,
 449                         the <span class="emphasis"><em>r</em></span> texture coordinate is computed using
 450                         the texture generation function defined with <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a>.
 451                         Otherwise, the current <span class="emphasis"><em>r</em></span> texture coordinate is used.
 452                         See <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a>.
 453                     </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_GEN_S</code></span></dt><dd><p>
 454                         </p><p>
 455                         If enabled and no vertex shader is active,
 456                         the <span class="emphasis"><em>s</em></span> texture coordinate is computed using
 457                         the texture generation function defined with <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a>.
 458                         Otherwise, the current <span class="emphasis"><em>s</em></span> texture coordinate is used.
 459                         See <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a>.
 460                     </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_GEN_T</code></span></dt><dd><p>
 461                         </p><p>
 462                         If enabled and no vertex shader is active,
 463                         the <span class="emphasis"><em>t</em></span> texture coordinate is computed using
 464                         the texture generation function defined with <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a>.
 465                         Otherwise, the current <span class="emphasis"><em>t</em></span> texture coordinate is used.
 466                         See <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a>.
 467                     </p></dd><dt><span class="term"><code class="constant">GL_VERTEX_PROGRAM_POINT_SIZE</code></span></dt><dd><p>
 468                         </p><p>
 469                         If enabled
 470                         and a vertex shader is active, then the derived point size is taken from the (potentially clipped) shader builtin
 471                         <code class="constant">gl_PointSize</code> and clamped to the implementation-dependent point size range.
 472                     </p></dd><dt><span class="term"><code class="constant">GL_VERTEX_PROGRAM_TWO_SIDE</code></span></dt><dd><p>
 473                         </p><p>
 474                         If enabled
 475                         and a vertex shader is active, it specifies that the GL will choose between front and back colors based on the
 476                         polygon's face direction of which the vertex being shaded is a part.  It has no effect on points or lines.
 477                     </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p>
 478             <code class="constant">GL_POLYGON_OFFSET_FILL</code>, <code class="constant">GL_POLYGON_OFFSET_LINE</code>,
 479             <code class="constant">GL_POLYGON_OFFSET_POINT</code>,
 480             <code class="constant">GL_COLOR_LOGIC_OP</code>, and <code class="constant">GL_INDEX_LOGIC_OP</code> are available
 481             only if the GL version is 1.1 or greater.
 482         </p><p>
 483             <code class="constant">GL_RESCALE_NORMAL</code>, and <code class="constant">GL_TEXTURE_3D</code> are available only if the
 484             GL version is 1.2 or greater.
 485         </p><p>
 486             <code class="constant">GL_MULTISAMPLE</code>,
 487             <code class="constant">GL_SAMPLE_ALPHA_TO_COVERAGE</code>,
 488             <code class="constant">GL_SAMPLE_ALPHA_TO_ONE</code>,
 489             <code class="constant">GL_SAMPLE_COVERAGE</code>,
 490             <code class="constant">GL_TEXTURE_CUBE_MAP</code>
 491             are available only if the GL version is 1.3 or greater.
 492         </p><p>
 493             <code class="constant">GL_POINT_SPRITE</code>,
 494             <code class="constant">GL_VERTEX_PROGRAM_POINT_SIZE</code>, and
 495             <code class="constant">GL_VERTEX_PROGRAM_TWO_SIDE</code>
 496             is available only if the GL version is 2.0 or greater.
 497         </p><p>
 498             <code class="constant">GL_COLOR_TABLE</code>, <code class="constant">GL_CONVOLUTION_1D</code>, <code class="constant">GL_CONVOLUTION_2D</code>,
 499             <code class="constant">GL_HISTOGRAM</code>, <code class="constant">GL_MINMAX</code>,
 500             <code class="constant">GL_POST_COLOR_MATRIX_COLOR_TABLE</code>,
 501             <code class="constant">GL_POST_CONVOLUTION_COLOR_TABLE</code>, and
 502             <code class="constant">GL_SEPARABLE_2D</code> are available only if <code class="code">ARB_imaging</code> is returned
 503             from <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with an argument of <code class="constant">GL_EXTENSIONS</code>.
 504         </p><p>
 505             For OpenGL versions 1.3 and greater, or when <code class="code">ARB_multitexture</code> is supported, <code class="constant">GL_TEXTURE_1D</code>,
 506             <code class="constant">GL_TEXTURE_2D</code>, <code class="constant">GL_TEXTURE_3D</code>, <code class="constant">GL_TEXTURE_GEN_S</code>,
 507             <code class="constant">GL_TEXTURE_GEN_T</code>, <code class="constant">GL_TEXTURE_GEN_R</code>, and <code class="constant">GL_TEXTURE_GEN_Q</code>
 508             enable or disable the respective state for the active texture unit
 509             specified with <a class="citerefentry" href="glActiveTexture.xml"><span class="citerefentry"><span class="refentrytitle">glActiveTexture</span></span></a>.
 510         </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p>
 511             <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>cap</code></em> is not one of the values
 512             listed previously.
 513         </p><p>
 514             <code class="constant">GL_INVALID_OPERATION</code> is generated if <code class="function">glEnable</code> or <a class="citerefentry" href="glDisable.xml"><span class="citerefentry"><span class="refentrytitle">glDisable</span></span></a>
 515             is executed between the execution of <a class="citerefentry" href="glBegin.xml"><span class="citerefentry"><span class="refentrytitle">glBegin</span></span></a>
 516             and the corresponding execution of <a class="citerefentry" href="glEnd.xml"><span class="citerefentry"><span class="refentrytitle">glEnd</span></span></a>.
 517         </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p>
 518             <a class="citerefentry" href="glIsEnabled.xml"><span class="citerefentry"><span class="refentrytitle">glIsEnabled</span></span></a>
 519         </p><p>
 520             <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a>
 521         </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
 522             <a class="citerefentry" href="glActiveTexture.xml"><span class="citerefentry"><span class="refentrytitle">glActiveTexture</span></span></a>,
 523             <a class="citerefentry" href="glAlphaFunc.xml"><span class="citerefentry"><span class="refentrytitle">glAlphaFunc</span></span></a>,
 524             <a class="citerefentry" href="glBlendFunc.xml"><span class="citerefentry"><span class="refentrytitle">glBlendFunc</span></span></a>,
 525             <a class="citerefentry" href="glClipPlane.xml"><span class="citerefentry"><span class="refentrytitle">glClipPlane</span></span></a>,
 526             <a class="citerefentry" href="glColorMaterial.xml"><span class="citerefentry"><span class="refentrytitle">glColorMaterial</span></span></a>,
 527             <a class="citerefentry" href="glCullFace.xml"><span class="citerefentry"><span class="refentrytitle">glCullFace</span></span></a>,
 528             <a class="citerefentry" href="glDepthFunc.xml"><span class="citerefentry"><span class="refentrytitle">glDepthFunc</span></span></a>,
 529             <a class="citerefentry" href="glDepthRange.xml"><span class="citerefentry"><span class="refentrytitle">glDepthRange</span></span></a>,
 530             <a class="citerefentry" href="glEnableClientState.xml"><span class="citerefentry"><span class="refentrytitle">glEnableClientState</span></span></a>,
 531             <a class="citerefentry" href="glFog.xml"><span class="citerefentry"><span class="refentrytitle">glFog</span></span></a>,
 532             <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a>,
 533             <a class="citerefentry" href="glIsEnabled.xml"><span class="citerefentry"><span class="refentrytitle">glIsEnabled</span></span></a>,
 534             <a class="citerefentry" href="glLight.xml"><span class="citerefentry"><span class="refentrytitle">glLight</span></span></a>,
 535             <a class="citerefentry" href="glLightModel.xml"><span class="citerefentry"><span class="refentrytitle">glLightModel</span></span></a>,
 536             <a class="citerefentry" href="glLineWidth.xml"><span class="citerefentry"><span class="refentrytitle">glLineWidth</span></span></a>,
 537             <a class="citerefentry" href="glLineStipple.xml"><span class="citerefentry"><span class="refentrytitle">glLineStipple</span></span></a>,
 538             <a class="citerefentry" href="glLogicOp.xml"><span class="citerefentry"><span class="refentrytitle">glLogicOp</span></span></a>,
 539             <a class="citerefentry" href="glMap1.xml"><span class="citerefentry"><span class="refentrytitle">glMap1</span></span></a>,
 540             <a class="citerefentry" href="glMap2.xml"><span class="citerefentry"><span class="refentrytitle">glMap2</span></span></a>,
 541             <a class="citerefentry" href="glMaterial.xml"><span class="citerefentry"><span class="refentrytitle">glMaterial</span></span></a>,
 542             <a class="citerefentry" href="glNormal.xml"><span class="citerefentry"><span class="refentrytitle">glNormal</span></span></a>,
 543             <a class="citerefentry" href="glNormalPointer.xml"><span class="citerefentry"><span class="refentrytitle">glNormalPointer</span></span></a>,
 544             <a class="citerefentry" href="glPointSize.xml"><span class="citerefentry"><span class="refentrytitle">glPointSize</span></span></a>,
 545             <a class="citerefentry" href="glPolygonMode.xml"><span class="citerefentry"><span class="refentrytitle">glPolygonMode</span></span></a>,
 546             <a class="citerefentry" href="glPolygonOffset.xml"><span class="citerefentry"><span class="refentrytitle">glPolygonOffset</span></span></a>,
 547             <a class="citerefentry" href="glPolygonStipple.xml"><span class="citerefentry"><span class="refentrytitle">glPolygonStipple</span></span></a>,
 548             <a class="citerefentry" href="glSampleCoverage.xml"><span class="citerefentry"><span class="refentrytitle">glSampleCoverage</span></span></a>,
 549             <a class="citerefentry" href="glScissor.xml"><span class="citerefentry"><span class="refentrytitle">glScissor</span></span></a>,
 550             <a class="citerefentry" href="glStencilFunc.xml"><span class="citerefentry"><span class="refentrytitle">glStencilFunc</span></span></a>,
 551             <a class="citerefentry" href="glStencilOp.xml"><span class="citerefentry"><span class="refentrytitle">glStencilOp</span></span></a>,
 552             <a class="citerefentry" href="glTexGen.xml"><span class="citerefentry"><span class="refentrytitle">glTexGen</span></span></a>,
 553             <a class="citerefentry" href="glTexImage1D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage1D</span></span></a>,
 554             <a class="citerefentry" href="glTexImage2D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage2D</span></span></a>,
 555             <a class="citerefentry" href="glTexImage3D.xml"><span class="citerefentry"><span class="refentrytitle">glTexImage3D</span></span></a>
 556         </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
 557             Copyright <span class="trademark"></span>© 1991-2006
 558             Silicon Graphics, Inc. This document is licensed under the SGI
 559             Free Software B License. For details, see
 560             <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>.
 561         </p></div></div></body></html>