TEXTUREPROJ(3G)

    .SH "NAME" textureProj - perform a texture lookup with projection
    .SH "DECLARATION"

            .HP u gvec4 textureProj(gsampler1D sampler, vec2 P, [float bias]);
            .HP u gvec4 textureProj(gsampler1D sampler, vec4 P, [float bias]);
            .HP u gvec4 textureProj(gsampler2D sampler, vec3 P, [float bias]);
            .HP u gvec4 textureProj(gsampler2D sampler, vec4 P, [float bias]);
            .HP u gvec4 textureProj(gsampler3D sampler, vec4 P, [float bias]);
            .HP u float textureProj(sampler1DShadow sampler, vec4 P, [float bias]);
            .HP u float textureProj(sampler2DShadow sampler, vec4 P, [float bias]);
            .HP u gvec4 textureProj(gsampler2DRect sampler, vec3 P);
            .HP u gvec4 textureProj(gsampler2DRect sampler, vec4 P);
            .HP u float textureProj(sampler2DRectShadow sampler, vec4 P);

    .SH "PARAMETERS"

        .PP sampler

                    Specifies the sampler to which the texture from which texels will be retrieved is bound.

            .RE
            .PP P

                        Specifies the texture coordinates at which texture will be sampled.

                .RE
                .PP bias

                            Specifies an optional bias to be applied during level-of-detail computation.

                    .RE

                .SH "DESCRIPTION"
                    .PP 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().

                .SH "VERSION SUPPORT"
                    .TS allbox tab(:); lB cB s s s s s s s s s s s lB cB cB cB cB cB cB cB cB cB cB cB cB. T{ T}:T{ OpenGL Shading Language Version T} T{ Function Name T}:T{ 1.10 T}:T{ 1.20 T}:T{ 1.30 T}:T{ 1.40 T}:T{ 1.50 T}:T{ 3.30 T}:T{ 4.00 T}:T{ 4.10 T}:T{ 4.20 T}:T{ 4.30 T}:T{ 4.40 T}:T{ 4.50 T} l c c c c c c c c c c c c l c c c c c c c c c c c c. T{ textureProj T}:T{ - T}:T{ - T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T} T{ textureProj (gsampler2DRect{Shadow}) T}:T{ - T}:T{ - T}:T{ - T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}

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

                .SH "COPYRIGHT"
                    .PP 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. https://opencontent.org/openpub/.

COPYRIGHT
Copyright © 2011-2014 Khronos Group