TEXTUREPROJ(3G)                 [FIXME: manual]                TEXTUREPROJ(3G)

NAME
       textureProj - perform a texture lookup with projection

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);

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

       +-------------------------+-----------------------------------------------------------------------------------+
       |                         |                          OpenGL Shading Language Version                          |
       +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |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 |
       +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |textureProj              |  -   |  -   | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  |
       +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |textureProj              |  -   |  -   |  -   | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  |
       |(gsampler2DRect{Shadow}) |      |      |      |      |      |      |      |      |      |      |      |      |
       +-------------------------+------+------+------+------+------+------+------+------+------+------+------+------+

SEE ALSO
       texelFetch(), texelFetchOffset(), texture(), textureGather(),
       textureGatherOffset(), textureGatherOffsets(), textureGrad(),
       textureGradOffset(), textureLod(), textureLodOffset(), textureOffset(),
       textureProjGrad(), textureProjGradOffset(), textureProjLod(),
       textureProjLodOffset(), textureProjOffset(), textureQueryLod(),
       textureSize()

COPYRIGHT
       Copyright (C) 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.  http://opencontent.org/openpub/.

COPYRIGHT
       Copyright (C) 2011-2014 Khronos Group

[FIXME: source]                   05/21/2022                   TEXTUREPROJ(3G)