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DISTANCE(3clc) OpenCL Manual DISTANCE(3clc)


distance - Vector distance.

float distance(floatn p0, floatn p1);

double distance(doublen p0, doublen p1);

half distance (gentype p0, gentype p1) // if half extension enabled


Returns the distance between p0 and p1. This is calculated as length(3clc)(p0 - p1).


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.


OpenCL Specification[1]




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OpenCL Specification
page 262, section 6.12.5 - Geometric Functions
01/14/2021 The Khronos Group