| title | description | ms.assetid | ms.topic | ms.date | topic_type | api_name | api_type | api_location | |
|---|---|---|---|---|---|---|---|---|---|
lrp - vs |
Interpolates linearly between the second and third source registers by a proportion specified in the first source register. | lrp - vs |
8438bcf3-9b00-4963-b2a3-54fd1c345961 |
reference |
05/31/2018 |
|
Interpolates linearly between the second and third source registers by a proportion specified in the first source register.
| 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.
| 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;