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acos |
Returns the arccosine of the specified value. |
c9bc33b8-d586-4c64-9453-5ab97396f2cf |
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reference |
05/31/2018 |
Returns the arccosine of the specified value.
| ret acos(x) |
|---|
| Item | Description |
|---|---|
| x |
[in] The specified value. Each component should be a floating-point value within the range of -1 to 1. |
The arccosine of the x parameter.
| Name | Template Type | Component Type | Size |
|---|---|---|---|
| x | scalar, vector, or matrix | float | any |
| ret | same as input x | float | same dimension(s) as input x |
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) | vs_1_1 only |