defi - ps
Defines an integer constant value, which should be loaded any time a shader is set to a device.
Syntax
| defi dst, integerValue |
|---|
- dst is the destination register.
- integerValue is a constant integer value.
Remarks
| Pixel shader versions | 1_1 | 1_2 | 1_3 | 1_4 | 2_0 | 2_x | 2_sw | 3_0 | 3_sw |
|---|---|---|---|---|---|---|---|---|---|
| defi | x | x | x | x |
The defi instruction defines a shader constant whose value is loaded anytime a shader is set to a device. These are called immediate constants. Immediate constants take precedence over constants set by the API method SetPixelShaderConstantB.
There are two ways to set a constant in a shader.
- Use defi to define the constant directly inside a shader.
- Use the API methods to set a constant.
- Use SetPixelShaderConstantB to set a Boolean constant.
- Use SetPixelShaderConstantF to set a floating-point constant.
- Use SetPixelShaderConstantI to set an integer constant.
Related topics
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