Normal vector length 1.
floatn normalize(floatn p); doublen normalize(doublen p);
| gentype normalize (gentype p) // if half extension enabled |
|---|
Returns a vector in the same direction as p but with a length of 1.
Built-in geometric functions operate component-wise. The description is per-component. floatn is float, float2, float3, or float4 and doublen is double, double2, double3, or double4. 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(3clc) or fma(3clc).
If extended with cl_khr_fp16(3clc), generic type name gentype may indicate half and half{2|3|4} as arguments and return values.
\m[blue]OpenCL Specification\m[]\s-2\u[1]\d\s+2
fast_normalize(3clc)geometricFunctions(3clc)
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OpenCL Specification
page 262, section 6.12.5 - Geometric Functions