lrp - vs

Interpolates linearly between the second and third source registers by a proportion specified in the first source register.

Syntax

lrp dst, src0, src1, src2

where

dst is the destination register.
src0 is a source register.
src1 is a source register.
src2 is a source register.

Remarks

Vertex shader versions	1_1	2_0	2_x	2_sw	3_0	3_sw
lrp		x	x	x	x	x

This instruction performs the linear interpolation based on the following formula.

dest.x = src0.x * (src1.x - src2.x) + src2.x;
dest.y = src0.y * (src1.y - src2.y) + src2.y;
dest.z = src0.z * (src1.z - src2.z) + src2.z;
dest.w = src0.w * (src1.w - src2.w) + src2.w;