<div class="refentry" title="glColor"><a id="glColor"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glColor — set the current color</p></div><div class="refsynopsisdiv" title="C Specification"><h2>C Specification</h2><div class="funcsynopsis"><table class="funcprototype-table"><tr><td><code class="funcdef">void <b class="fsfunc">glColor4f</b>(</code></td><td>GLfloat <var class="pdparam">red</var>, </td></tr><tr><td> </td><td>GLfloat <var class="pdparam">green</var>, </td></tr><tr><td> </td><td>GLfloat <var class="pdparam">blue</var>, </td></tr><tr><td> </td><td>GLfloat <var class="pdparam">alpha</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table class="funcprototype-table"><tr><td><code class="funcdef">void <b class="fsfunc">glColor4x</b>(</code></td><td>GLfixed <var class="pdparam">red</var>, </td></tr><tr><td> </td><td>GLfixed <var class="pdparam">green</var>, </td></tr><tr><td> </td><td>GLfixed <var class="pdparam">blue</var>, </td></tr><tr><td> </td><td>GLfixed <var class="pdparam">alpha</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table class="funcprototype-table"><tr><td><code class="funcdef">void <b class="fsfunc">glColor4ub</b>(</code></td><td>GLubyte <var class="pdparam">red</var>, </td></tr><tr><td> </td><td>GLubyte <var class="pdparam">green</var>, </td></tr><tr><td> </td><td>GLubyte <var class="pdparam">blue</var>, </td></tr><tr><td> </td><td>GLubyte <var class="pdparam">alpha</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Parameters"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term">

<em class="parameter"><code>red</code></em>,

<em class="parameter"><code>green</code></em>,

<em class="parameter"><code>blue</code></em>,

<em class="parameter"><code>alpha</code></em>

</span></dt><dd><p>Specify new red, green, blue, and alpha values for

the current color.</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="description"></a><h2>Description</h2><p><code class="function">glColor</code> sets a new four-valued current RGBA color.</p><p>Current color values are stored in fixed-point or

floating-point. In case the values are stored in

floating-point, the mantissa and exponent sizes are

unspecified.</p><p>Neither fixed-point nor floating-point values are clamped

to the range [0, 1] before the current color is updated.

However, color components are clamped to this range before they

are interpolated or written into the color buffer.</p><p>Unsigned byte color components specified

with <code class="function">glColor4ub</code> are linearly mapped to

floating-point values such that 255 maps to 1.0 (full

intensity), and 0 maps to 0.0 (zero intensity).</p></div><div class="refsect1" title="Notes"><a id="notes"></a><h2>Notes</h2><p> The initial value for the current color is (1, 1, 1, 1).</p></div><div class="refsect1" title="Associated Gets"><a id="associatedgets"></a><h2>Associated Gets</h2><p>

<a class="citerefentry" href="glGet"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_CURRENT_COLOR</code>

</p></div><div class="refsect1" title="See Also"><a id="seealso"></a><h2>See Also</h2><p>

<a class="citerefentry" href="glColorPointer"><span class="citerefentry"><span class="refentrytitle">glColorPointer</span></span></a>,

<a class="citerefentry" href="glNormal"><span class="citerefentry"><span class="refentrytitle">glNormal</span></span></a>,

<a class="citerefentry" href="glMultiTexCoord"><span class="citerefentry"><span class="refentrytitle">glMultiTexCoord</span></span></a>

</p></div><div class="refsect1" title="Copyright"><a id="copyright"></a><h2>Copyright</h2><p>

Copyright © 2003-2004

Silicon Graphics, Inc. This document is licensed under the SGI

Free Software B License. For details, see

<a class="ulink" href="https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/" target="_top">https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/</a>.

</p></div></div>