texreg2gb

Interprets the green and blue color components of the source register as texture address data to sample the texture at the stage corresponding to the destination register number.

texreg2gb dest, src

Registers

To learn more about registers, see Registers.

Remarks

This instruction is useful for color-space remapping operations.

// Here is an example of the sequence the instruction follows.
tex t(n)
texreg2gb t(m), t(n)     where m > n

// Here is more detail about how the remapping is accomplished.
// The first instruction loads the texture color (RGBA) into register tn.
tex tn 
// The second instruction remaps the color.
t(m)RGBA = TextureSample(stage m)RGBA using t(n)GB as coordinates.