OpenGL.raw.GL.EXT.texture_env_combine | index /build/buildd/pyopengl-3.0.0~b6/OpenGL/raw/GL/EXT/texture_env_combine.py |
OpenGL extension EXT.texture_env_combine
Overview (from the spec)
New texture environment function COMBINE_EXT allows programmable
texture combiner operations, including:
REPLACE Arg0
MODULATE Arg0 * Arg1
ADD Arg0 + Arg1
ADD_SIGNED_EXT Arg0 + Arg1 - 0.5
INTERPOLATE_EXT Arg0 * (Arg2) + Arg1 * (1-Arg2)
where Arg0, Arg1 and Arg2 are derived from
PRIMARY_COLOR_EXT primary color of incoming fragment
TEXTURE texture color of corresponding texture unit
CONSTANT_EXT texture environment constant color
PREVIOUS_EXT result of previous texture environment; on
texture unit 0, this maps to PRIMARY_COLOR_EXT
and Arg2 is restricted to the alpha component of the corresponding source.
In addition, the result may be scaled by 1.0, 2.0 or 4.0.
The official definition of this extension is available here:
http://oss.sgi.com/projects/ogl-sample/registry/EXT/texture_env_combine.txt
Automatically generated by the get_gl_extensions script, do not edit!
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EXTENSION_NAME = 'GL_EXT_texture_env_combine' GL_ADD_SIGNED_EXT = GL_ADD_SIGNED_EXT GL_COMBINE_ALPHA_EXT = GL_COMBINE_ALPHA_EXT GL_COMBINE_EXT = GL_COMBINE_EXT GL_COMBINE_RGB_EXT = GL_COMBINE_RGB_EXT GL_CONSTANT_EXT = GL_CONSTANT_EXT GL_INTERPOLATE_EXT = GL_INTERPOLATE_EXT GL_OPERAND0_ALPHA_EXT = GL_OPERAND0_ALPHA_EXT GL_OPERAND0_RGB_EXT = GL_OPERAND0_RGB_EXT GL_OPERAND1_ALPHA_EXT = GL_OPERAND1_ALPHA_EXT GL_OPERAND1_RGB_EXT = GL_OPERAND1_RGB_EXT GL_OPERAND2_ALPHA_EXT = GL_OPERAND2_ALPHA_EXT GL_OPERAND2_RGB_EXT = GL_OPERAND2_RGB_EXT GL_PREVIOUS_EXT = GL_PREVIOUS_EXT GL_PRIMARY_COLOR_EXT = GL_PRIMARY_COLOR_EXT GL_RGB_SCALE_EXT = GL_RGB_SCALE_EXT GL_SOURCE0_ALPHA_EXT = GL_SOURCE0_ALPHA_EXT GL_SOURCE0_RGB_EXT = GL_SOURCE0_RGB_EXT GL_SOURCE1_ALPHA_EXT = GL_SOURCE1_ALPHA_EXT GL_SOURCE1_RGB_EXT = GL_SOURCE1_RGB_EXT GL_SOURCE2_ALPHA_EXT = GL_SOURCE2_ALPHA_EXT GL_SOURCE2_RGB_EXT = GL_SOURCE2_RGB_EXT __file__ = '/build/buildd/pyopengl-3.0.0~b6/OpenGL/raw/GL/EXT/texture_env_combine.py' __name__ = 'OpenGL.raw.GL.EXT.texture_env_combine' |