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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;

Vertex Shader Instructions

 

 

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