Temporary register (HLSL PS reference)
Pixel shader input temporary registers are used to hold intermediate results.
Syntax
no declaration is required
| Pixel shader versions | 1_1 | 1_2 | 1_3 | 1_4 | 2_0 | 2_sw | 2_x | 3_0 | 3_sw |
|---|---|---|---|---|---|---|---|---|---|
| Temporary Register | x | x | x | x | x |
- There are 12 pixel-shader temporary registers: r0 to r11.
- These registers are used for storing intermediate results during computations.
- If a temporary register uses components that are not defined in previous code, shader validation will fail.
- These are at least floating-point precision.
- A maximum of three can be used in a single instruction.
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