pow - ps
Microsoft DirectX 9.0 SDK Update (October 2004)

pow - ps


Full precision abs(src0)src1.

Syntax

pow dst, src0, src1

where

Remarks

Pixel shader versions1_11_21_31_42_02_x2_sw3_03_sw
powxxxxx

This instruction works as follows:

dest.x = dest.y = dest.z = dest.w = [abs(src0)]src1;

This is a scalar instruction, therefore the source registers should have replicate swizzles to indicate which channels are used.

The input power (src1) must be a scalar.

The scalar result is replicated to all four output channels.

This instruction could be expanded as exp(src1 * log(src0)).

The dst register should be a temporary register, and should not be the same register as src1.



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