Methods, systems, and devices for image processing are described. A device may identify a target pixel having a texel coordinate in an image. The device may select, based on the texel coordinate, a first texel sample of a first set of texel samples and a second texel sample of a second set of texel samples. In some examples, the device may group the first texel sample and the second texel sample into a third set of texel samples. The device may generate an instruction including the third set of texel samples and a weighted sum associated with the first texel sample and the second texel sample, and process the third set of texel samples based on the instruction. In some examples, the instruction may be a macro instruction.