step
Compares two values, returning 0 or 1 based on which value is greater.
| ret step(y, x) |
|---|
Parameters
| Item | Description |
|---|---|
| y |
[in] The first floating-point value to compare. |
| x |
[in] The second floating-point value to compare. |
Return Value
1 if the x parameter is greater than or equal to the y parameter; otherwise, 0.
Remarks
This function uses the following formula: (x >= y) ? 1 : 0. The function returns either 0 or 1 depending on whether the x parameter is greater than the y parameter. To compute a smooth interpolation between 0 and 1, use the smoothstep HLSL intrinsic function.
Type Description
| Name | Template Type | Component Type | Size |
|---|---|---|---|
| y | scalar, vector, or matrix | float | any |
| x | same as input y | float | same dimension(s) as input y |
| ret | same as input y | float | same dimension(s) as input y |
Minimum Shader Model
This function is supported in the following shader models.
| Shader Model | Supported |
|---|---|
| Shader Model 2 (DirectX HLSL) and higher shader models | yes |
| Shader Model 1 (DirectX HLSL) | yes (vs_1_1 and ps_1_4) |