lrp - ps

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

Pixel shader versions1_11_21_31_42_02_x2_sw3_03_sw
lrpxxxxxxxxx

 

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


 
dest = src0 * src1 + (1-src0) * src2
// which is the same as
dest = src2 + src0 * (src1 - src2)


 

 

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