|
|
Computes the four-component dot product of the source registers.
| dp4 dst, src0, src1 |
|---|
where
| Vertex shader versions | 1_1 | 2_0 | 2_x | 2_sw | 3_0 | 3_sw |
|---|---|---|---|---|---|---|
| dp4 | x | x | x | x | x | x |
The following code fragment shows the operations performed:
dest.w = (src0.x * src1.x) + (src0.y * src1.y) +
(src0.z * src1.z) + (src0.w * src1.w);
dest.x = dest.y = dest.z = dest.w;