textureProjGradOffset — perform a texture lookup with projection, explicit gradients and offset
gvec4 textureProjGradOffset(
|
gsampler2D sampler, |
| vec3 P, | |
| vec2 dPdx, | |
| vec2 dPdy, | |
ivec2 offset); |
gvec4 textureProjGradOffset(
|
gsampler2D sampler, |
| vec4 P, | |
| vec2 dPdx, | |
| vec2 dPdy, | |
ivec2 offset); |
gvec4 textureProjGradOffset(
|
gsampler3D sampler, |
| vec4 P, | |
| vec3 dPdx, | |
| vec3 dPdy, | |
ivec3 offset); |
float textureProjGradOffset(
|
sampler2DShadow sampler, |
| vec4 P, | |
| vec2 dPdx, | |
| vec2 dPdy, | |
ivec2 offset); |
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.
dPdx
Specifies the partial derivative of P with respect to window x.
dPdy
Specifies the partial derivative of P with respect to window y.
offset
Specifies the offsets, in texels at which the texture will be sampled relative to the projection of P.
textureProjGradOffset performs a texture lookup with projection and explicit gradients and offsets. The texture coordinates
consumed from P, not including the last component of P,
are divided by the last component of P. The resulting P in the shadow forms is used as
dPdx and dPdy as gradients, and offset as the offset.
| OpenGL ES Shading Language Version | ||||
|---|---|---|---|---|
| Function Name | 1.00 | 3.00 | 3.10 | 3.20 |
| textureProjGradOffset | - | ✔ | ✔ | ✔ |
texelFetch, texelFetchOffset, texture, textureGrad, textureGradOffset, textureLod, textureLodOffset, textureOffset, textureProj, textureProjGrad, textureProjLod, textureProjLodOffset, textureProjOffset, textureSize
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