DECLARATION
-
gvec4 textureProj(gsampler1D sampler, vec2 P, [float bias]);
- gvec4 textureProj(gsampler1D sampler, vec4 P, [float bias]);
- gvec4 textureProj(gsampler2D sampler, vec3 P, [float bias]);
- gvec4 textureProj(gsampler2D sampler, vec4 P, [float bias]);
- gvec4 textureProj(gsampler3D sampler, vec4 P, [float bias]);
- float textureProj(sampler1DShadow sampler, vec4 P, [float bias]);
- float textureProj(sampler2DShadow sampler, vec4 P, [float bias]);
- gvec4 textureProj(gsampler2DRect sampler, vec3 P);
- gvec4 textureProj(gsampler2DRect sampler, vec4 P);
- float textureProj(gsampler2DRectShadow sampler, vec4 P);
- gvec4 textureProj(gsampler1D sampler, vec4 P, [float bias]);
PARAMETERS
sampler
-
- Specifies the sampler to which the texture from which texels will be retrieved is bound.
P
- Specifies the texture coordinates at which texture will be sampled.
bias
- Specifies an optional bias to be applied during level-of-detail computation.
DESCRIPTION
textureProj performs a texture lookup with projection. The texture coordinates consumed from P, not including the last component of P, are divided by the last component of P. The resulting 3rd component of P in the shadow forms is used as Dref. After these values are computed, the texture lookup proceeds as in texture().
VERSION SUPPORT
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OpenGL Shading Language Version
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| Function Name | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 |
4.50
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| textureProj | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
✔
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| textureProj (gsampler2DRect{Shadow}) | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
✔
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COPYRIGHT
Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. m[blue]http://opencontent.org/openpub/m[].
COPYRIGHT
Copyright © 2011-2014 Khronos Group