imageLoad — load a single texel from an image
gvec4 imageLoad(
gimage1D image, int P)
;
gvec4 imageLoad(
gimage2D image, ivec2 P)
;
gvec4 imageLoad(
gimage3D image, ivec3 P)
;
gvec4 imageLoad(
gimage2DRect image, ivec2 P)
;
gvec4 imageLoad(
gimageCube image, ivec3 P)
;
gvec4 imageLoad(
gbufferImage image, int P)
;
gvec4 imageLoad( | gimage1DArray | image, |
ivec2 | P) ; |
gvec4 imageLoad( | gimage2DArray | image, |
ivec3 | P) ; |
gvec4 imageLoad( | gimageCubeArray | image, |
ivec3 | P) ; |
gvec4 imageLoad( | gimage2DMS | image, |
ivec2 | P, | |
int | sample) ; |
gvec4 imageLoad( | gimage2DMSArray | image, |
ivec3 | P, | |
int | sample) ; |
image
Specify the image unit from which to load a texel.
P
Specify the coordinate from which to load the texel.
sample
When present, specifies the sample within the image to load
imageLoad
loads the texel at the coordinate P
from the image
unit image
. For multi-sample loads, the sample number is given by sample
. When
image
, P
, sample
identify a valid texel, the bits used
to represent the selected texel in memory are converted to a vec4, ivec4, or uvec4 in the manner described in the OpenGL
Specification and returned.
Function | Version 1.10 | Version 1.20 | Version 1.30 | Version 1.40 | Version 1.50 | Version 3.30 | Version 4.00 | Version 4.10 | Version 4.20 | Version 4.30 |
---|---|---|---|---|---|---|---|---|---|---|
imageLoad | - | - | - | - | - | - | - | - | Y | Y |
imageStore, imageAtomicAdd, imageAtomicMin, imageAtomicMax, imageAtomicAnd, imageAtomicOr, imageAtomicXor, imageAtomicExchange, imageAtomicCompSwap
Copyright © 2011 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/.