Class EXTCompiledVertexArray
This extension defines an interface which allows static vertex array data to be cached or pre-compiled for more efficient rendering. This is useful for implementations which can cache the transformed results of array data for reuse by several DrawArrays, ArrayElement, or DrawElements commands. It is also useful for implementations which can transfer array data to fast memory for more efficient processing.
For example, rendering an M by N mesh of quadrilaterals can be accomplished by setting up vertex arrays containing all of the vertexes in the mesh and issuing M DrawElements commands each of which operate on 2 * N vertexes. Each DrawElements command after the first will share N vertexes with the preceding DrawElements command. If the vertex array data is locked while the DrawElements commands are executed, then OpenGL may be able to transform each of these shared vertexes just once.
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Field Summary
Modifier and TypeFieldDescriptionstatic final int
Accepted by thepname
parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.static final int
Accepted by thepname
parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev. -
Method Summary
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Field Details
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GL_ARRAY_ELEMENT_LOCK_FIRST_EXT
public static final int GL_ARRAY_ELEMENT_LOCK_FIRST_EXTAccepted by thepname
parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.- See Also:
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GL_ARRAY_ELEMENT_LOCK_COUNT_EXT
public static final int GL_ARRAY_ELEMENT_LOCK_COUNT_EXTAccepted by thepname
parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.- See Also:
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Method Details
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glLockArraysEXT
public static void glLockArraysEXT(int first, int count) -
glUnlockArraysEXT
public static void glUnlockArraysEXT()
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