Load a single texel from an image.
||-||Specify the image unit from which to load a texel.|
||-||Specify the coordinate from which to load the texel.|
||-||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
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.
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