glStencilFuncSeparate

set front and/or back function and reference value for stencil testing

Signature

glStencilFuncSeparate( GLenum ( face ) , GLenum ( func ) , GLint ( ref ) , GLuint ( mask ) )-> void

glStencilFuncSeparate( face , func , ref , mask )

Parameters

Variables	Description
face	Specifies whether front and/or back stencil state is updated. Three symbolic constants are valid: GL_FRONT , GL_BACK , and GL_FRONT_AND_BACK .
func	Specifies the test function. Eight symbolic constants are valid: GL_NEVER , GL_LESS , GL_LEQUAL , GL_GREATER , GL_GEQUAL , GL_EQUAL , GL_NOTEQUAL , and GL_ALWAYS . The initial value is GL_ALWAYS .
ref	Specifies the reference value for the stencil test. ref is clamped to the range $[0, 2^{n} - 1]$ , where $n$ is the number of bitplanes in the stencil buffer. The initial value is 0.
mask	Specifies a mask that is ANDed with both the reference value and the stored stencil value when the test is done. The initial value is all 1's.

Copyright Notices

This documentation is based on documentation licensed under the SGI Free Software License B.

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