TextureEnvMode Enum [fixed]
Posted Monday, 7 April, 2008 - 07:49 by teichgraf inI am missing the GL_REPLACE value in the TextureEnvMode enum. TextureEnvMode.ReplaceExt = ((int)0X8062) has not the right value for GL_REPLACE:
#define GL_REPLACE 0x1E01At the moment I use TextureEnvModeCombine.Replace, which has the right value (0x1E01).
GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (float)TextureEnvModeCombine.Replace);
Is this intented?
Passing a value from the TextureEnvMode enum would make more sense to me, if TextureEnvParameter.TextureEnvMode is used in GL.TexEnv.
Or what did I mistake here?
Comments
Re: TextureEnvMode Enum
Confirmed, TextureEnvMode.ReplaceExt and TextureEnvModeCombine.Replace should both be 0x1e01. The problem could be that they're considered to be different by the generator (ext and core token). Thanks for pointing that out :)
Re: TextureEnvMode Enum
Why is the value named TextureEnvMode.ReplaceExt and not just TextureEnvMode.Replace, like in the OpenGL spec.?
Re: TextureEnvMode Enum
Which specs?
TextureEnvMode enum: MODULATE = 0x2100 DECAL = 0x2101 use GetPName BLEND use EXT_texture REPLACE_EXT use AccumOp ADD use SGIX_texture_add_env TEXTURE_ENV_BIAS_SGIXand:
The only reference to REPLACE comes from StencilOp (which contains the correct value, 0x1E01). Yep, the specs are quite buggy :)
I'll fix this by hand, but it might be a good idea to log a bug at the khronos bugzilla.
Re: TextureEnvMode Enum
OK, my fault. With specs I meant the ManPage for gltexenv.
Re: TextureEnvMode Enum
From http://opengl.org/registry/specs/EXT/texture.txt
Accepted by the parameter of TexEnvf, TexEnvi, TexEnvfv, and TexEnvfi when the parameter value is GL_TEXTURE_ENV_MODE
REPLACE_EXT 0x8062
From http://opengl.org/registry/specs/ARB/texture_env_combine.txt
Accepted by the parameter of TexEnvf, TexEnvi, TexEnvfv, and TexEnviv when the parameter value is COMBINE_RGB_ARB or COMBINE_ALPHA_ARB
REPLACE
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I found a sample that it should be 0x1e01 yesterday. Does this refer to the EXT_texture which was promoted to core in 1.2, or the stencil token? *confused*
Re: TextureEnvMode Enum
Fixed.