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<?xml version="1.0" encoding="iso-8859-1"?>
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<html><head><title>QGLShaderProgram Class Reference</title><style>h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm }
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</style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr /><td align="left" valign="top" width="32"><img align="left" border="0" height="32" src="images/rb-logo.png" width="32" /></td><td width="1">  </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a></td></table><h1 align="center">QGLShaderProgram Class Reference<br /><sup><sup>[<a href="qtopengl.html">QtOpenGL</a> module]</sup></sup></h1><p>The QGLShaderProgram class allows OpenGL shader programs to be
linked and used. <a href="#details">More...</a></p>
<p>Inherits <a href="qobject.html">QObject</a>.</p><h3>Methods</h3><ul><li><div class="fn" /><b><a href="qglshaderprogram.html#QGLShaderProgram">__init__</a></b> (<i>self</i>, QObject <i>parent</i> = None)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#QGLShaderProgram-2">__init__</a></b> (<i>self</i>, QGLContext <i>context</i>, QObject <i>parent</i> = None)</li><li><div class="fn" />bool <b><a href="qglshaderprogram.html#addShader">addShader</a></b> (<i>self</i>, QGLShader <i>shader</i>)</li><li><div class="fn" />bool <b><a href="qglshaderprogram.html#addShaderFromSourceCode">addShaderFromSourceCode</a></b> (<i>self</i>, QGLShader.ShaderType <i>type</i>, QByteArray <i>source</i>)</li><li><div class="fn" />bool <b><a href="qglshaderprogram.html#addShaderFromSourceCode-2">addShaderFromSourceCode</a></b> (<i>self</i>, QGLShader.ShaderType <i>type</i>, QString <i>source</i>)</li><li><div class="fn" />bool <b><a href="qglshaderprogram.html#addShaderFromSourceFile">addShaderFromSourceFile</a></b> (<i>self</i>, QGLShader.ShaderType <i>type</i>, QString <i>fileName</i>)</li><li><div class="fn" />int <b><a href="qglshaderprogram.html#attributeLocation">attributeLocation</a></b> (<i>self</i>, QByteArray <i>name</i>)</li><li><div class="fn" />int <b><a href="qglshaderprogram.html#attributeLocation-2">attributeLocation</a></b> (<i>self</i>, QString <i>name</i>)</li><li><div class="fn" />bool <b><a href="qglshaderprogram.html#bind">bind</a></b> (<i>self</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#bindAttributeLocation">bindAttributeLocation</a></b> (<i>self</i>, QByteArray <i>name</i>, int <i>location</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#bindAttributeLocation-2">bindAttributeLocation</a></b> (<i>self</i>, QString <i>name</i>, int <i>location</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#disableAttributeArray">disableAttributeArray</a></b> (<i>self</i>, int <i>location</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#disableAttributeArray-2">disableAttributeArray</a></b> (<i>self</i>, str <i>name</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a></b> (<i>self</i>, int <i>location</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#enableAttributeArray-2">enableAttributeArray</a></b> (<i>self</i>, str <i>name</i>)</li><li><div class="fn" />int <b><a href="qglshaderprogram.html#geometryInputType">geometryInputType</a></b> (<i>self</i>)</li><li><div class="fn" />int <b><a href="qglshaderprogram.html#geometryOutputType">geometryOutputType</a></b> (<i>self</i>)</li><li><div class="fn" />int <b><a href="qglshaderprogram.html#geometryOutputVertexCount">geometryOutputVertexCount</a></b> (<i>self</i>)</li><li><div class="fn" />bool <b><a href="qglshaderprogram.html#isLinked">isLinked</a></b> (<i>self</i>)</li><li><div class="fn" />bool <b><a href="qglshaderprogram.html#link">link</a></b> (<i>self</i>)</li><li><div class="fn" />QString <b><a href="qglshaderprogram.html#log">log</a></b> (<i>self</i>)</li><li><div class="fn" />int <b><a href="qglshaderprogram.html#programId">programId</a></b> (<i>self</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#release">release</a></b> (<i>self</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#removeAllShaders">removeAllShaders</a></b> (<i>self</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#removeShader">removeShader</a></b> (<i>self</i>, QGLShader <i>shader</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a></b> (<i>self</i>, int <i>location</i>, object <i>values</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeArray-2">setAttributeArray</a></b> (<i>self</i>, str <i>name</i>, object <i>values</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeBuffer">setAttributeBuffer</a></b> (<i>self</i>, int <i>location</i>, int <i>type</i>, int <i>offset</i>, int <i>tupleSize</i>, int <i>stride</i> = 0)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeBuffer-2">setAttributeBuffer</a></b> (<i>self</i>, str <i>name</i>, int <i>type</i>, int <i>offset</i>, int <i>tupleSize</i>, int <i>stride</i> = 0)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a></b> (<i>self</i>, int <i>location</i>, float <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-2">setAttributeValue</a></b> (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-3">setAttributeValue</a></b> (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-4">setAttributeValue</a></b> (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>, float <i>w</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-5">setAttributeValue</a></b> (<i>self</i>, int <i>location</i>, QVector2D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-6">setAttributeValue</a></b> (<i>self</i>, int <i>location</i>, QVector3D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-7">setAttributeValue</a></b> (<i>self</i>, int <i>location</i>, QVector4D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-8">setAttributeValue</a></b> (<i>self</i>, int <i>location</i>, QColor <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-9">setAttributeValue</a></b> (<i>self</i>, str <i>name</i>, float <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-10">setAttributeValue</a></b> (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-11">setAttributeValue</a></b> (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-12">setAttributeValue</a></b> (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>, float <i>w</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-13">setAttributeValue</a></b> (<i>self</i>, str <i>name</i>, QVector2D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-14">setAttributeValue</a></b> (<i>self</i>, str <i>name</i>, QVector3D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-15">setAttributeValue</a></b> (<i>self</i>, str <i>name</i>, QVector4D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setAttributeValue-16">setAttributeValue</a></b> (<i>self</i>, str <i>name</i>, QColor <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setGeometryInputType">setGeometryInputType</a></b> (<i>self</i>, int <i>inputType</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setGeometryOutputType">setGeometryOutputType</a></b> (<i>self</i>, int <i>outputType</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setGeometryOutputVertexCount">setGeometryOutputVertexCount</a></b> (<i>self</i>, int <i>count</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, int <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-2">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, float <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-3">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-4">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-5">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>, float <i>w</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-6">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QVector2D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-7">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QVector3D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-8">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QVector4D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-9">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QColor <i>color</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-10">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QPoint <i>point</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-11">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QPointF <i>point</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-12">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QSize <i>size</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-13">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QSizeF <i>size</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-14">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QMatrix2x2 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-15">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QMatrix2x3 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-16">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QMatrix2x4 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-17">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QMatrix3x2 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-18">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QMatrix3x3 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-19">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QMatrix3x4 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-20">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QMatrix4x2 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-21">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QMatrix4x3 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-22">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QMatrix4x4 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-23">setUniformValue</a></b> (<i>self</i>, int <i>location</i>, QTransform <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-24">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, int <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-25">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, float <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-26">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-27">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-28">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>, float <i>w</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-29">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QVector2D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-30">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QVector3D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-31">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QVector4D <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-32">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QColor <i>color</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-33">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QPoint <i>point</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-34">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QPointF <i>point</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-35">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QSize <i>size</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-36">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QSizeF <i>size</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-37">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QMatrix2x2 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-38">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QMatrix2x3 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-39">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QMatrix2x4 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-40">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QMatrix3x2 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-41">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QMatrix3x3 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-42">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QMatrix3x4 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-43">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QMatrix4x2 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-44">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QMatrix4x3 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-45">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QMatrix4x4 <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValue-46">setUniformValue</a></b> (<i>self</i>, str <i>name</i>, QTransform <i>value</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValueArray">setUniformValueArray</a></b> (<i>self</i>, int <i>location</i>, object <i>values</i>)</li><li><div class="fn" /><b><a href="qglshaderprogram.html#setUniformValueArray-2">setUniformValueArray</a></b> (<i>self</i>, str <i>name</i>, object <i>values</i>)</li><li><div class="fn" />unknown-type <b><a href="qglshaderprogram.html#shaders">shaders</a></b> (<i>self</i>)</li><li><div class="fn" />int <b><a href="qglshaderprogram.html#uniformLocation">uniformLocation</a></b> (<i>self</i>, QByteArray <i>name</i>)</li><li><div class="fn" />int <b><a href="qglshaderprogram.html#uniformLocation-2">uniformLocation</a></b> (<i>self</i>, QString <i>name</i>)</li></ul><h3>Static Methods</h3><ul><li><div class="fn" />bool <b><a href="qglshaderprogram.html#hasOpenGLShaderPrograms">hasOpenGLShaderPrograms</a></b> (QGLContext <i>context</i> = None)</li></ul><a name="details" /><hr /><h2>Detailed Description</h2><p>The QGLShaderProgram class allows OpenGL shader programs to be
linked and used.</p>
<a id="introduction" name="introduction" />
<h3>Introduction</h3>
<p>This class supports shader programs written in the OpenGL
Shading Language (GLSL) and in the OpenGL/ES Shading Language
(GLSL/ES).</p>
<p><a href="qglshader.html">QGLShader</a> and QGLShaderProgram
shelter the programmer from the details of compiling and linking
vertex and fragment shaders.</p>
<p>The following example creates a vertex shader program using the
supplied source <tt>code</tt>. Once compiled and linked, the shader
program is activated in the current <a href="qglcontext.html">QGLContext</a> by calling <a href="qglshaderprogram.html#bind">QGLShaderProgram.bind</a>():</p>
<pre class="cpp">
<span class="type"><a href="qglshader.html">QGLShader</a></span> shader(<span class="type"><a href="qglshader.html">QGLShader</a></span><span class="operator">.</span>Vertex);
shader<span class="operator">.</span>compileSourceCode(code);
<span class="type">QGLShaderProgram</span> program(context);
program<span class="operator">.</span><a href="qglshaderprogram.html#addShader">addShader</a>(shader);
program<span class="operator">.</span><a href="qglshaderprogram.html#link">link</a>();
program<span class="operator">.</span><a href="qglshaderprogram.html#bind">bind</a>();
</pre>
<a id="writing-portable-shaders" name="writing-portable-shaders" />
<h3>Writing portable shaders</h3>
<p>Shader programs can be difficult to reuse across OpenGL
implementations because of varying levels of support for standard
vertex attributes and uniform variables. In particular, GLSL/ES
lacks all of the standard variables that are present on desktop
OpenGL systems: <tt>gl_Vertex</tt>, <tt>gl_Normal</tt>,
<tt>gl_Color</tt>, and so on. Desktop OpenGL lacks the variable
qualifiers <tt>highp</tt>, <tt>mediump</tt>, and <tt>lowp</tt>.</p>
<p>The QGLShaderProgram class makes the process of writing portable
shaders easier by prefixing all shader programs with the following
lines on desktop OpenGL:</p>
<pre class="cpp">
<span class="preprocessor">#define highp</span>
<span class="preprocessor">#define mediump</span>
<span class="preprocessor">#define lowp</span>
</pre>
<p>This makes it possible to run most GLSL/ES shader programs on
desktop systems. The programmer should restrict themselves to just
features that are present in GLSL/ES, and avoid standard variable
names that only work on the desktop.</p>
<a id="simple-shader-example" name="simple-shader-example" />
<h3>Simple shader example</h3>
<pre class="cpp">
program<span class="operator">.</span><a href="qglshaderprogram.html#addShaderFromSourceCode">addShaderFromSourceCode</a>(<span class="type"><a href="qglshader.html">QGLShader</a></span><span class="operator">.</span>Vertex<span class="operator">,</span>
<span class="string">"attribute highp vec4 vertex;\n"</span>
<span class="string">"uniform highp mat4 matrix;\n"</span>
<span class="string">"void main(void)\n"</span>
<span class="string">"{\n"</span>
<span class="string">" gl_Position = matrix * vertex;\n"</span>
<span class="string">"}"</span>);
program<span class="operator">.</span><a href="qglshaderprogram.html#addShaderFromSourceCode">addShaderFromSourceCode</a>(<span class="type"><a href="qglshader.html">QGLShader</a></span><span class="operator">.</span>Fragment<span class="operator">,</span>
<span class="string">"uniform mediump vec4 color;\n"</span>
<span class="string">"void main(void)\n"</span>
<span class="string">"{\n"</span>
<span class="string">" gl_FragColor = color;\n"</span>
<span class="string">"}"</span>);
program<span class="operator">.</span><a href="qglshaderprogram.html#link">link</a>();
program<span class="operator">.</span><a href="qglshaderprogram.html#bind">bind</a>();
<span class="type">int</span> vertexLocation <span class="operator">=</span> program<span class="operator">.</span><a href="qglshaderprogram.html#attributeLocation">attributeLocation</a>(<span class="string">"vertex"</span>);
<span class="type">int</span> matrixLocation <span class="operator">=</span> program<span class="operator">.</span><a href="qglshaderprogram.html#uniformLocation">uniformLocation</a>(<span class="string">"matrix"</span>);
<span class="type">int</span> colorLocation <span class="operator">=</span> program<span class="operator">.</span><a href="qglshaderprogram.html#uniformLocation">uniformLocation</a>(<span class="string">"color"</span>);
</pre>
<p>With the above shader program active, we can draw a green
triangle as follows:</p>
<pre class="cpp">
<span class="keyword">static</span> GLfloat <span class="keyword">const</span> triangleVertices<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> {
<span class="number">60.0f</span><span class="operator">,</span> <span class="number">10.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span>
<span class="number">110.0f</span><span class="operator">,</span> <span class="number">110.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span>
<span class="number">10.0f</span><span class="operator">,</span> <span class="number">110.0f</span><span class="operator">,</span> <span class="number">0.0f</span>
};
<span class="type"><a href="qcolor.html">QColor</a></span> color(<span class="number">0</span><span class="operator">,</span> <span class="number">255</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">255</span>);
QMatrix4x4 pmvMatrix;
pmvMatrix<span class="operator">.</span>ortho(rect());
program<span class="operator">.</span><a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>(vertexLocation);
program<span class="operator">.</span><a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a>(vertexLocation<span class="operator">,</span> triangleVertices<span class="operator">,</span> <span class="number">3</span>);
program<span class="operator">.</span><a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>(matrixLocation<span class="operator">,</span> pmvMatrix);
program<span class="operator">.</span><a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>(colorLocation<span class="operator">,</span> color);
glDrawArrays(GL_TRIANGLES<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">3</span>);
program<span class="operator">.</span><a href="qglshaderprogram.html#disableAttributeArray">disableAttributeArray</a>(vertexLocation);
</pre>
<a id="binary-shaders-and-programs" name="binary-shaders-and-programs" />
<h3>Binary shaders and programs</h3>
<p>Binary shaders may be specified using <tt>glShaderBinary()</tt>
on the return value from <a href="qglshader.html#shaderId">QGLShader.shaderId</a>(). The <a href="qglshader.html">QGLShader</a> instance containing the binary can
then be added to the shader program with <a href="qglshaderprogram.html#addShader">addShader</a>() and linked in the
usual fashion with <a href="qglshaderprogram.html#link">link</a>().</p>
<p>Binary programs may be specified using
<tt>glProgramBinaryOES()</tt> on the return value from <a href="qglshaderprogram.html#programId">programId</a>(). Then the
application should call <a href="qglshaderprogram.html#link">link</a>(), which will notice that the
program has already been specified and linked, allowing other
operations to be performed on the shader program.</p>
<hr /><h2>Method Documentation</h2><h3 class="fn"><a name="QGLShaderProgram" />QGLShaderProgram.__init__ (<i>self</i>, <a href="qobject.html">QObject</a> <i>parent</i> = None)</h3><p>The <i>parent</i> argument, if not None, causes <i>self</i> to be owned by Qt instead of PyQt.</p><p>Constructs a new shader program and attaches it to
<i>parent</i>. The program will be invalid until <a href="qglshaderprogram.html#addShader">addShader</a>() is called.</p>
<p>The shader program will be associated with the current <a href="qglcontext.html">QGLContext</a>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShader">addShader</a>().</p>
<h3 class="fn"><a name="QGLShaderProgram-2" />QGLShaderProgram.__init__ (<i>self</i>, <a href="qglcontext.html">QGLContext</a> <i>context</i>, <a href="qobject.html">QObject</a> <i>parent</i> = None)</h3><p>The <i>parent</i> argument, if not None, causes <i>self</i> to be owned by Qt instead of PyQt.</p><p>Constructs a new shader program and attaches it to
<i>parent</i>. The program will be invalid until <a href="qglshaderprogram.html#addShader">addShader</a>() is called.</p>
<p>The shader program will be associated with <i>context</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShader">addShader</a>().</p>
<h3 class="fn"><a name="addShader" />bool QGLShaderProgram.addShader (<i>self</i>, <a href="qglshader.html">QGLShader</a> <i>shader</i>)</h3><p>Adds a compiled <i>shader</i> to this shader program. Returns
true if the shader could be added, or false otherwise.</p>
<p>Ownership of the <i>shader</i> object remains with the caller.
It will not be deleted when this <a href="qglshaderprogram.html">QGLShaderProgram</a> instance is deleted.
This allows the caller to add the same shader to multiple shader
programs.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShaderFromSourceCode">addShaderFromSourceCode</a>(),
<a href="qglshaderprogram.html#addShaderFromSourceFile">addShaderFromSourceFile</a>(),
<a href="qglshaderprogram.html#removeShader">removeShader</a>(),
<a href="qglshaderprogram.html#link">link</a>(), and <a href="qglshaderprogram.html#removeAllShaders">removeAllShaders</a>().</p>
<h3 class="fn"><a name="addShaderFromSourceCode" />bool QGLShaderProgram.addShaderFromSourceCode (<i>self</i>, <a href="qglshader-shadertype.html">QGLShader.ShaderType</a> <i>type</i>, <a href="qbytearray.html">QByteArray</a> <i>source</i>)</h3><p>Compiles <i>source</i> as a shader of the specified <i>type</i>
and adds it to this shader program. Returns true if compilation was
successful, false otherwise. The compilation errors and warnings
will be made available via <a href="qglshaderprogram.html#log">log</a>().</p>
<p>This function is intended to be a short-cut for quickly adding
vertex and fragment shaders to a shader program without creating an
instance of <a href="qglshader.html">QGLShader</a> first.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShader">addShader</a>(), <a href="qglshaderprogram.html#addShaderFromSourceFile">addShaderFromSourceFile</a>(),
<a href="qglshaderprogram.html#removeShader">removeShader</a>(),
<a href="qglshaderprogram.html#link">link</a>(), <a href="qglshaderprogram.html#log">log</a>(), and <a href="qglshaderprogram.html#removeAllShaders">removeAllShaders</a>().</p>
<h3 class="fn"><a name="addShaderFromSourceCode-2" />bool QGLShaderProgram.addShaderFromSourceCode (<i>self</i>, <a href="qglshader-shadertype.html">QGLShader.ShaderType</a> <i>type</i>, QString <i>source</i>)</h3><p>This is an overloaded function.</p>
<p>Compiles <i>source</i> as a shader of the specified <i>type</i>
and adds it to this shader program. Returns true if compilation was
successful, false otherwise. The compilation errors and warnings
will be made available via <a href="qglshaderprogram.html#log">log</a>().</p>
<p>This function is intended to be a short-cut for quickly adding
vertex and fragment shaders to a shader program without creating an
instance of <a href="qglshader.html">QGLShader</a> first.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShader">addShader</a>(), <a href="qglshaderprogram.html#addShaderFromSourceFile">addShaderFromSourceFile</a>(),
<a href="qglshaderprogram.html#removeShader">removeShader</a>(),
<a href="qglshaderprogram.html#link">link</a>(), <a href="qglshaderprogram.html#log">log</a>(), and <a href="qglshaderprogram.html#removeAllShaders">removeAllShaders</a>().</p>
<h3 class="fn"><a name="addShaderFromSourceFile" />bool QGLShaderProgram.addShaderFromSourceFile (<i>self</i>, <a href="qglshader-shadertype.html">QGLShader.ShaderType</a> <i>type</i>, QString <i>fileName</i>)</h3><p>Compiles the contents of <i>fileName</i> as a shader of the
specified <i>type</i> and adds it to this shader program. Returns
true if compilation was successful, false otherwise. The
compilation errors and warnings will be made available via <a href="qglshaderprogram.html#log">log</a>().</p>
<p>This function is intended to be a short-cut for quickly adding
vertex and fragment shaders to a shader program without creating an
instance of <a href="qglshader.html">QGLShader</a> first.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShader">addShader</a>() and <a href="qglshaderprogram.html#addShaderFromSourceCode">addShaderFromSourceCode</a>().</p>
<h3 class="fn"><a name="attributeLocation" />int QGLShaderProgram.attributeLocation (<i>self</i>, <a href="qbytearray.html">QByteArray</a> <i>name</i>)</h3><p>Returns the location of the attribute <i>name</i> within this
shader program's parameter list. Returns -1 if <i>name</i> is not a
valid attribute for this shader program.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#uniformLocation">uniformLocation</a>() and
<a href="qglshaderprogram.html#bindAttributeLocation">bindAttributeLocation</a>().</p>
<h3 class="fn"><a name="attributeLocation-2" />int QGLShaderProgram.attributeLocation (<i>self</i>, QString <i>name</i>)</h3><p>This is an overloaded function.</p>
<p>Returns the location of the attribute <i>name</i> within this
shader program's parameter list. Returns -1 if <i>name</i> is not a
valid attribute for this shader program.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#uniformLocation">uniformLocation</a>() and
<a href="qglshaderprogram.html#bindAttributeLocation">bindAttributeLocation</a>().</p>
<h3 class="fn"><a name="bind" />bool QGLShaderProgram.bind (<i>self</i>)</h3><p>Binds this shader program to the active <a href="qglcontext.html">QGLContext</a> and makes it the current shader
program. Any previously bound shader program is released. This is
equivalent to calling <tt>glUseProgram()</tt> on <a href="qglshaderprogram.html#programId">programId</a>(). Returns true if
the program was successfully bound; false otherwise. If the shader
program has not yet been linked, or it needs to be re-linked, this
function will call <a href="qglshaderprogram.html#link">link</a>().</p>
<p><b>See also</b> <a href="qglshaderprogram.html#link">link</a>()
and <a href="qglshaderprogram.html#release">release</a>().</p>
<h3 class="fn"><a name="bindAttributeLocation" />QGLShaderProgram.bindAttributeLocation (<i>self</i>, <a href="qbytearray.html">QByteArray</a> <i>name</i>, int <i>location</i>)</h3><p>Binds the attribute <i>name</i> to the specified
<i>location</i>. This function can be called before or after the
program has been linked. Any attributes that have not been
explicitly bound when the program is linked will be assigned
locations automatically.</p>
<p>When this function is called after the program has been linked,
the program will need to be relinked for the change to take
effect.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#attributeLocation">attributeLocation</a>().</p>
<h3 class="fn"><a name="bindAttributeLocation-2" />QGLShaderProgram.bindAttributeLocation (<i>self</i>, QString <i>name</i>, int <i>location</i>)</h3><p>This is an overloaded function.</p>
<p>Binds the attribute <i>name</i> to the specified
<i>location</i>. This function can be called before or after the
program has been linked. Any attributes that have not been
explicitly bound when the program is linked will be assigned
locations automatically.</p>
<p>When this function is called after the program has been linked,
the program will need to be relinked for the change to take
effect.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#attributeLocation">attributeLocation</a>().</p>
<h3 class="fn"><a name="disableAttributeArray" />QGLShaderProgram.disableAttributeArray (<i>self</i>, int <i>location</i>)</h3><p>Disables the vertex array at <i>location</i> in this shader
program that was enabled by a previous call to <a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>().</p>
<p><b>See also</b> <a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>(),
<a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a>(),
<a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>(),
and <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="disableAttributeArray-2" />QGLShaderProgram.disableAttributeArray (<i>self</i>, str <i>name</i>)</h3><p>This is an overloaded function.</p>
<p>Disables the vertex array called <i>name</i> in this shader
program that was enabled by a previous call to <a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>().</p>
<p><b>See also</b> <a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>(),
<a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a>(),
<a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>(),
and <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="enableAttributeArray" />QGLShaderProgram.enableAttributeArray (<i>self</i>, int <i>location</i>)</h3><p>Enables the vertex array at <i>location</i> in this shader
program so that the value set by <a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a>()
on <i>location</i> will be used by the shader program.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#disableAttributeArray">disableAttributeArray</a>(),
<a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a>(),
<a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>(),
and <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="enableAttributeArray-2" />QGLShaderProgram.enableAttributeArray (<i>self</i>, str <i>name</i>)</h3><p>This is an overloaded function.</p>
<p>Enables the vertex array called <i>name</i> in this shader
program so that the value set by <a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a>()
on <i>name</i> will be used by the shader program.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#disableAttributeArray">disableAttributeArray</a>(),
<a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a>(),
<a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>(),
and <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="geometryInputType" />int QGLShaderProgram.geometryInputType (<i>self</i>)</h3><p>Returns the geometry shader input type, if active.</p>
<p>This parameter takes effect the next time the program is
linked.</p>
<p>This function was introduced in Qt 4.7.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setGeometryInputType">setGeometryInputType</a>().</p>
<h3 class="fn"><a name="geometryOutputType" />int QGLShaderProgram.geometryOutputType (<i>self</i>)</h3><p>Returns the geometry shader output type, if active.</p>
<p>This parameter takes effect the next time the program is
linked.</p>
<p>This function was introduced in Qt 4.7.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setGeometryOutputType">setGeometryOutputType</a>().</p>
<h3 class="fn"><a name="geometryOutputVertexCount" />int QGLShaderProgram.geometryOutputVertexCount (<i>self</i>)</h3><p>Returns the maximum number of vertices the current geometry
shader program will produce, if active.</p>
<p>This parameter takes effect the ntext time the program is
linked.</p>
<p>This function was introduced in Qt 4.7.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setGeometryOutputVertexCount">setGeometryOutputVertexCount</a>().</p>
<h3 class="fn"><a name="hasOpenGLShaderPrograms" />bool QGLShaderProgram.hasOpenGLShaderPrograms (<a href="qglcontext.html">QGLContext</a> <i>context</i> = None)</h3><p>Returns true if shader programs written in the OpenGL Shading
Language (GLSL) are supported on this system; false otherwise.</p>
<p>The <i>context</i> is used to resolve the GLSL extensions. If
<i>context</i> is null, then <a href="qglcontext.html#currentContext">QGLContext.currentContext</a>()
is used.</p>
<h3 class="fn"><a name="isLinked" />bool QGLShaderProgram.isLinked (<i>self</i>)</h3><p>Returns true if this shader program has been linked; false
otherwise.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#link">link</a>().</p>
<h3 class="fn"><a name="link" />bool QGLShaderProgram.link (<i>self</i>)</h3><p>Links together the shaders that were added to this program with
<a href="qglshaderprogram.html#addShader">addShader</a>(). Returns
true if the link was successful or false otherwise. If the link
failed, the error messages can be retrieved with <a href="qglshaderprogram.html#log">log</a>().</p>
<p>Subclasses can override this function to initialize attributes
and uniform variables for use in specific shader programs.</p>
<p>If the shader program was already linked, calling this function
again will force it to be re-linked.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShader">addShader</a>() and <a href="qglshaderprogram.html#log">log</a>().</p>
<h3 class="fn"><a name="log" />QString QGLShaderProgram.log (<i>self</i>)</h3><p>Returns the errors and warnings that occurred during the last
<a href="qglshaderprogram.html#link">link</a>() or <a href="qglshaderprogram.html#addShader">addShader</a>() with explicitly
specified source code.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#link">link</a>().</p>
<h3 class="fn"><a name="programId" />int QGLShaderProgram.programId (<i>self</i>)</h3><p>Returns the OpenGL identifier associated with this shader
program.</p>
<p><b>See also</b> <a href="qglshader.html#shaderId">QGLShader.shaderId</a>().</p>
<h3 class="fn"><a name="release" />QGLShaderProgram.release (<i>self</i>)</h3><p>Releases the active shader program from the current <a href="qglcontext.html">QGLContext</a>. This is equivalent to calling
<tt>glUseProgram(0)</tt>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#bind">bind</a>().</p>
<h3 class="fn"><a name="removeAllShaders" />QGLShaderProgram.removeAllShaders (<i>self</i>)</h3><p>Removes all of the shaders that were added to this program
previously. The <a href="qglshader.html">QGLShader</a> objects for
the shaders will not be deleted if they were constructed
externally. <a href="qglshader.html">QGLShader</a> objects that are
constructed internally by <a href="qglshaderprogram.html">QGLShaderProgram</a> will be deleted.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShader">addShader</a>() and <a href="qglshaderprogram.html#removeShader">removeShader</a>().</p>
<h3 class="fn"><a name="removeShader" />QGLShaderProgram.removeShader (<i>self</i>, <a href="qglshader.html">QGLShader</a> <i>shader</i>)</h3><p>Removes <i>shader</i> from this shader program. The object is
not deleted.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShader">addShader</a>(), <a href="qglshaderprogram.html#link">link</a>(), and <a href="qglshaderprogram.html#removeAllShaders">removeAllShaders</a>().</p>
<h3 class="fn"><a name="setAttributeArray" />QGLShaderProgram.setAttributeArray (<i>self</i>, int <i>location</i>, object <i>values</i>)</h3><p>Sets an array of vertex <i>values</i> on the attribute at
<i>location</i> in this shader program. The <i>tupleSize</i>
indicates the number of components per vertex (1, 2, 3, or 4), and
the <i>stride</i> indicates the number of bytes between vertices. A
default <i>stride</i> value of zero indicates that the vertices are
densely packed in <i>values</i>.</p>
<p>The array will become active when <a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>()
is called on the <i>location</i>. Otherwise the value specified
with <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>()
for <i>location</i> will be used.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>(),
<a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>(),
<a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>(),
and <a href="qglshaderprogram.html#disableAttributeArray">disableAttributeArray</a>().</p>
<h3 class="fn"><a name="setAttributeArray-2" />QGLShaderProgram.setAttributeArray (<i>self</i>, str <i>name</i>, object <i>values</i>)</h3><p>Sets an array of 2D vertex <i>values</i> on the attribute at
<i>location</i> in this shader program. The <i>stride</i> indicates
the number of bytes between vertices. A default <i>stride</i> value
of zero indicates that the vertices are densely packed in
<i>values</i>.</p>
<p>The array will become active when <a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>()
is called on the <i>location</i>. Otherwise the value specified
with <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>()
for <i>location</i> will be used.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>(),
<a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>(),
<a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>(),
and <a href="qglshaderprogram.html#disableAttributeArray">disableAttributeArray</a>().</p>
<h3 class="fn"><a name="setAttributeBuffer" />QGLShaderProgram.setAttributeBuffer (<i>self</i>, int <i>location</i>, int <i>type</i>, int <i>offset</i>, int <i>tupleSize</i>, int <i>stride</i> = 0)</h3><p>Sets an array of vertex values on the attribute at
<i>location</i> in this shader program, starting at a specific
<i>offset</i> in the currently bound vertex buffer. The
<i>stride</i> indicates the number of bytes between vertices. A
default <i>stride</i> value of zero indicates that the vertices are
densely packed in the value array.</p>
<p>The <i>type</i> indicates the type of elements in the vertex
value array, usually <tt>GL_FLOAT</tt>, <tt>GL_UNSIGNED_BYTE</tt>,
etc. The <i>tupleSize</i> indicates the number of components per
vertex: 1, 2, 3, or 4.</p>
<p>The array will become active when <a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>()
is called on the <i>location</i>. Otherwise the value specified
with <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>()
for <i>location</i> will be used.</p>
<p>This function was introduced in Qt 4.7.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a>().</p>
<h3 class="fn"><a name="setAttributeBuffer-2" />QGLShaderProgram.setAttributeBuffer (<i>self</i>, str <i>name</i>, int <i>type</i>, int <i>offset</i>, int <i>tupleSize</i>, int <i>stride</i> = 0)</h3><p>This is an overloaded function.</p>
<p>Sets an array of vertex values on the attribute called
<i>name</i> in this shader program, starting at a specific
<i>offset</i> in the currently bound vertex buffer. The
<i>stride</i> indicates the number of bytes between vertices. A
default <i>stride</i> value of zero indicates that the vertices are
densely packed in the value array.</p>
<p>The <i>type</i> indicates the type of elements in the vertex
value array, usually <tt>GL_FLOAT</tt>, <tt>GL_UNSIGNED_BYTE</tt>,
etc. The <i>tupleSize</i> indicates the number of components per
vertex: 1, 2, 3, or 4.</p>
<p>The array will become active when <a href="qglshaderprogram.html#enableAttributeArray">enableAttributeArray</a>()
is called on the <i>name</i>. Otherwise the value specified with
<a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>()
for <i>name</i> will be used.</p>
<p>This function was introduced in Qt 4.7.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeArray">setAttributeArray</a>().</p>
<h3 class="fn"><a name="setAttributeValue" />QGLShaderProgram.setAttributeValue (<i>self</i>, int <i>location</i>, float <i>value</i>)</h3><p>Sets the attribute at <i>location</i> in the current context to
<i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-2" />QGLShaderProgram.setAttributeValue (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>)</h3><p>Sets the attribute at <i>location</i> in the current context to
the 2D vector (<i>x</i>, <i>y</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-3" />QGLShaderProgram.setAttributeValue (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>)</h3><p>Sets the attribute at <i>location</i> in the current context to
the 3D vector (<i>x</i>, <i>y</i>, <i>z</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-4" />QGLShaderProgram.setAttributeValue (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>, float <i>w</i>)</h3><p>Sets the attribute at <i>location</i> in the current context to
the 4D vector (<i>x</i>, <i>y</i>, <i>z</i>, <i>w</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-5" />QGLShaderProgram.setAttributeValue (<i>self</i>, int <i>location</i>, <a href="qvector2d.html">QVector2D</a> <i>value</i>)</h3><p>Sets the attribute at <i>location</i> in the current context to
<i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-6" />QGLShaderProgram.setAttributeValue (<i>self</i>, int <i>location</i>, <a href="qvector3d.html">QVector3D</a> <i>value</i>)</h3><p>Sets the attribute at <i>location</i> in the current context to
<i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-7" />QGLShaderProgram.setAttributeValue (<i>self</i>, int <i>location</i>, <a href="qvector4d.html">QVector4D</a> <i>value</i>)</h3><p>Sets the attribute at <i>location</i> in the current context to
<i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-8" />QGLShaderProgram.setAttributeValue (<i>self</i>, int <i>location</i>, <a href="qcolor.html">QColor</a> <i>value</i>)</h3><p>Sets the attribute at <i>location</i> in the current context to
<i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-9" />QGLShaderProgram.setAttributeValue (<i>self</i>, str <i>name</i>, float <i>value</i>)</h3><p>Sets the attribute at <i>location</i> in the current context to
the contents of <i>values</i>, which contains <i>columns</i>
elements, each consisting of <i>rows</i> elements. The <i>rows</i>
value should be 1, 2, 3, or 4. This function is typically used to
set matrix values and column vectors.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-10" />QGLShaderProgram.setAttributeValue (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the attribute called <i>name</i> in the current context to
<i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-11" />QGLShaderProgram.setAttributeValue (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the attribute called <i>name</i> in the current context to
the 2D vector (<i>x</i>, <i>y</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-12" />QGLShaderProgram.setAttributeValue (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>, float <i>w</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the attribute called <i>name</i> in the current context to
the 3D vector (<i>x</i>, <i>y</i>, <i>z</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-13" />QGLShaderProgram.setAttributeValue (<i>self</i>, str <i>name</i>, <a href="qvector2d.html">QVector2D</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the attribute called <i>name</i> in the current context to
the 4D vector (<i>x</i>, <i>y</i>, <i>z</i>, <i>w</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-14" />QGLShaderProgram.setAttributeValue (<i>self</i>, str <i>name</i>, <a href="qvector3d.html">QVector3D</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the attribute called <i>name</i> in the current context to
<i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-15" />QGLShaderProgram.setAttributeValue (<i>self</i>, str <i>name</i>, <a href="qvector4d.html">QVector4D</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the attribute called <i>name</i> in the current context to
<i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setAttributeValue-16" />QGLShaderProgram.setAttributeValue (<i>self</i>, str <i>name</i>, <a href="qcolor.html">QColor</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the attribute called <i>name</i> in the current context to
<i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setUniformValue">setUniformValue</a>().</p>
<h3 class="fn"><a name="setGeometryInputType" />QGLShaderProgram.setGeometryInputType (<i>self</i>, int <i>inputType</i>)</h3><p>Sets the input type from <i>inputType</i>.</p>
<p>This parameter takes effect the next time the program is
linked.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#geometryInputType">geometryInputType</a>().</p>
<h3 class="fn"><a name="setGeometryOutputType" />QGLShaderProgram.setGeometryOutputType (<i>self</i>, int <i>outputType</i>)</h3><p>Sets the output type from the geometry shader, if active, to
<i>outputType</i>.</p>
<p>This parameter takes effect the next time the program is
linked.</p>
<p>This function was introduced in Qt 4.7.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#geometryOutputType">geometryOutputType</a>().</p>
<h3 class="fn"><a name="setGeometryOutputVertexCount" />QGLShaderProgram.setGeometryOutputVertexCount (<i>self</i>, int <i>count</i>)</h3><p>Sets the maximum number of vertices the current geometry shader
program will produce, if active, to <i>count</i>.</p>
<p>This parameter takes effect the next time the program is
linked.</p>
<p>This function was introduced in Qt 4.7.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#geometryOutputVertexCount">geometryOutputVertexCount</a>().</p>
<h3 class="fn"><a name="setUniformValue" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, int <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-2" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, float <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-3" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to <i>value</i>. This function should be used when setting
sampler values.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-4" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to the 2D vector (<i>x</i>, <i>y</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-5" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>, float <i>w</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to the 3D vector (<i>x</i>, <i>y</i>, <i>z</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-6" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qvector2d.html">QVector2D</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to the 4D vector (<i>x</i>, <i>y</i>, <i>z</i>,
<i>w</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-7" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qvector3d.html">QVector3D</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-8" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qvector4d.html">QVector4D</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-9" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qcolor.html">QColor</a> <i>color</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-10" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qpoint.html">QPoint</a> <i>point</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to the red, green, blue, and alpha components of
<i>color</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-11" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qpointf.html">QPointF</a> <i>point</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to the x and y coordinates of <i>point</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-12" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qsize.html">QSize</a> <i>size</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to the x and y coordinates of <i>point</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-13" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qsizef.html">QSizeF</a> <i>size</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to the width and height of the given <i>size</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-14" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qmatrix2x2.html">QMatrix2x2</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to the width and height of the given <i>size</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-15" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qmatrix2x3.html">QMatrix2x3</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 2x2 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-16" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qmatrix2x4.html">QMatrix2x4</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 2x3 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-17" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qmatrix3x2.html">QMatrix3x2</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 2x4 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-18" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qmatrix3x3.html">QMatrix3x3</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 3x2 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-19" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qmatrix3x4.html">QMatrix3x4</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 3x3 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-20" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qmatrix4x2.html">QMatrix4x2</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 3x4 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-21" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qmatrix4x3.html">QMatrix4x3</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 4x2 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-22" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qmatrix4x4.html">QMatrix4x4</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 4x3 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-23" />QGLShaderProgram.setUniformValue (<i>self</i>, int <i>location</i>, <a href="qtransform.html">QTransform</a> <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 4x4 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-24" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, int <i>value</i>)</h3><p>Sets the uniform variable at <i>location</i> in the current
context to a 3x3 transformation matrix <i>value</i> that is
specified as a <a href="qtransform.html">QTransform</a> value.</p>
<p>To set a <a href="qtransform.html">QTransform</a> value as a 4x4
matrix in a shader, use <tt>setUniformValue(location,
QMatrix4x4(value))</tt>.</p>
<h3 class="fn"><a name="setUniformValue-25" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, float <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-26" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-27" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to <i>value</i>. This function should be used when setting
sampler values.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-28" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, float <i>x</i>, float <i>y</i>, float <i>z</i>, float <i>w</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to the 2D vector (<i>x</i>, <i>y</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-29" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qvector2d.html">QVector2D</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to the 3D vector (<i>x</i>, <i>y</i>, <i>z</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-30" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qvector3d.html">QVector3D</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to the 4D vector (<i>x</i>, <i>y</i>, <i>z</i>,
<i>w</i>).</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-31" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qvector4d.html">QVector4D</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-32" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qcolor.html">QColor</a> <i>color</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-33" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qpoint.html">QPoint</a> <i>point</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-34" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qpointf.html">QPointF</a> <i>point</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to the red, green, blue, and alpha components of
<i>color</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-35" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qsize.html">QSize</a> <i>size</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable associated with <i>name</i> in the
current context to the x and y coordinates of <i>point</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-36" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qsizef.html">QSizeF</a> <i>size</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable associated with <i>name</i> in the
current context to the x and y coordinates of <i>point</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-37" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qmatrix2x2.html">QMatrix2x2</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable associated with <i>name</i> in the
current context to the width and height of the given
<i>size</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-38" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qmatrix2x3.html">QMatrix2x3</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable associated with <i>name</i> in the
current context to the width and height of the given
<i>size</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-39" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qmatrix2x4.html">QMatrix2x4</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to a 2x2 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-40" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qmatrix3x2.html">QMatrix3x2</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to a 2x3 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-41" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qmatrix3x3.html">QMatrix3x3</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to a 2x4 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-42" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qmatrix3x4.html">QMatrix3x4</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to a 3x2 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-43" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qmatrix4x2.html">QMatrix4x2</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to a 3x3 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-44" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qmatrix4x3.html">QMatrix4x3</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to a 3x4 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-45" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qmatrix4x4.html">QMatrix4x4</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to a 4x2 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValue-46" />QGLShaderProgram.setUniformValue (<i>self</i>, str <i>name</i>, <a href="qtransform.html">QTransform</a> <i>value</i>)</h3><p>This is an overloaded function.</p>
<p>Sets the uniform variable called <i>name</i> in the current
context to a 4x3 matrix <i>value</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValueArray" />QGLShaderProgram.setUniformValueArray (<i>self</i>, int <i>location</i>, object <i>values</i>)</h3><p>Sets the uniform variable array at <i>location</i> in the
current context to the <i>count</i> elements of <i>values</i>. Each
element has <i>tupleSize</i> components. The <i>tupleSize</i> must
be 1, 2, 3, or 4.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="setUniformValueArray-2" />QGLShaderProgram.setUniformValueArray (<i>self</i>, str <i>name</i>, object <i>values</i>)</h3><p>Sets the uniform variable array at <i>location</i> in the
current context to the <i>count</i> elements of <i>values</i>.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#setAttributeValue">setAttributeValue</a>().</p>
<h3 class="fn"><a name="shaders" />unknown-type QGLShaderProgram.shaders (<i>self</i>)</h3><p>Returns a list of all shaders that have been added to this
shader program using <a href="qglshaderprogram.html#addShader">addShader</a>().</p>
<p><b>See also</b> <a href="qglshaderprogram.html#addShader">addShader</a>() and <a href="qglshaderprogram.html#removeShader">removeShader</a>().</p>
<h3 class="fn"><a name="uniformLocation" />int QGLShaderProgram.uniformLocation (<i>self</i>, <a href="qbytearray.html">QByteArray</a> <i>name</i>)</h3><p>Returns the location of the uniform variable <i>name</i> within
this shader program's parameter list. Returns -1 if <i>name</i> is
not a valid uniform variable for this shader program.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#attributeLocation">attributeLocation</a>().</p>
<h3 class="fn"><a name="uniformLocation-2" />int QGLShaderProgram.uniformLocation (<i>self</i>, QString <i>name</i>)</h3><p>This is an overloaded function.</p>
<p>Returns the location of the uniform variable <i>name</i> within
this shader program's parameter list. Returns -1 if <i>name</i> is
not a valid uniform variable for this shader program.</p>
<p><b>See also</b> <a href="qglshaderprogram.html#attributeLocation">attributeLocation</a>().</p>
<address><hr /><div align="center"><table border="0" cellspacing="0" width="100%"><tr class="address"><td align="left" width="25%">PyQt 4.12.1 for X11</td><td align="center" width="50%">Copyright © <a href="http://www.riverbankcomputing.com">Riverbank Computing Ltd</a> and <a href="http://www.qt.io">The Qt Company</a> 2015</td><td align="right" width="25%">Qt 4.8.7</td></tr></table></div></address></body></html>
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