Geometric Built-In Functions
Click an item in the table below for details about that function.
| cross | Cross product |
| dot | Dot product |
| distance | Vector distance |
| length | Vector length |
| normalize | Normal vector length 1 |
| fast_distance | Vector distance |
| fast_length | Vector length |
| fast_normalize | Normal vector length 1 |
Description
Built-in geometric functions operate component-wise and the description is per-component. The generic type name gentype indicates that the function can take float, float2, or float4, float8 as the type for the arguments.
The built-in geometric functions are implemented using the round to nearest even rounding mode.
The geometric functions can be implemented using contractions such as mad or fma.
The built-in geometric functions are extended with cl_khr_fp64 to include appropriate versions of functions that take double, and double{2|4|8|16} as arguments and return values. They are also extended with with cl_khr_fp16 to include appropriate versions of functions that take half, and half{2|4|8|16} as arguments and return values.
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