1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
'''OpenGL extension EXT.texture_env_dot3
Overview (from the spec)
Adds new operation to the texture combiner operations.
DOT3_RGB_EXT Arg0 <dotprod> Arg1
DOT3_RGBA_EXT Arg0 <dotprod> Arg1
where Arg0, Arg1 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
This operaion can only be performed if SOURCE0_RGB_EXT,
SOURCE1_RGB_EXT are defined.
The official definition of this extension is available here:
http://oss.sgi.com/projects/ogl-sample/registry/EXT/texture_env_dot3.txt
Automatically generated by the get_gl_extensions script, do not edit!
'''
from OpenGL import platform, constants, constant, arrays
from OpenGL import extensions
from OpenGL.GL import glget
import ctypes
EXTENSION_NAME = 'GL_EXT_texture_env_dot3'
GL_DOT3_RGB_EXT = constant.Constant( 'GL_DOT3_RGB_EXT', 0x8740 )
GL_DOT3_RGBA_EXT = constant.Constant( 'GL_DOT3_RGBA_EXT', 0x8741 )
def glInitTextureEnvDot3EXT():
'''Return boolean indicating whether this extension is available'''
return extensions.hasGLExtension( EXTENSION_NAME )
|
