glGetPixelTexGenParameterSGIS(3G) OpenGL Reference
NAME
glGetPixelTexGenParameterfvSGIS, glGetPixelTexGenParameterivSGIS - return
pixel texture parameter values
C SPECIFICATION
void glGetPixelTexGenParameterfvSGIS( GLenum pname,
GLfloat *params )
void glGetPixelTexGenParameterivSGIS( GLenum pname,
GLint *params )
PARAMETERS
pname Specifies the symbolic name of the parameter to be queried.
Accepted values are GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS and
GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS.
params Returns the pixel texture parameters.
DESCRIPTION
glGetPixelTexGenParameterSGIS returns in params the value or values of a
pixel texture parameter. pname accepts the same symbols as
glPixelTexGenParameterSGIS:
GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS
Returns the single-valued source of red, green, and blue color
components used to generate s, t, and r texture coordinates
when pixel texturing is enabled. The initial value is
GL_PIXEL_GROUP_COLOR_SGIS.
GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS
Returns the single-valued source of the alpha color component
used to generate q texture coordinates when pixel texturing is
enabled. The initial value is GL_PIXEL_GROUP_COLOR_SGIS.
ERRORS
GL_INVALID_ENUM is generated if pname or params is not an accepted value.
GL_INVALID_OPERATION is generated if glGetPixelTexGenParameterSGIS is
executed between the execution of glBegin and the corresponding execution
of glEnd.
MACHINE DEPENDENCIES
glGetPixelTexGenParameterSGIS is supported only on Octane2 VPro systems.
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glGetPixelTexGenParameterSGIS(3G) OpenGL Reference
NOTES
glGetPixelTexGenParameterSGIS is part of the SGIS_pixel_texture
extension.
SEE ALSO
glPixelTexGenParameterSGIS
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