Cross product.

float4 cross ( float4 p0,
  float4 p1)
float3 cross ( float3 p0,
  float3 p1)

double4 cross (double4 p0, double4 p1) // if double extension enabled
double3 cross (double3 p0, double3 p1) // if double extension enabled
half4 cross (half4 p0, half4 p1) // if half extension enabled
half3 cross (half3 p0, half3 p1) // if half extension enabled


Returns the cross product of and The w component of the float4 result (or double or half if the cl_khr_fp64 or cl_khr_fp16 extensions are enabled) will be 0.0.


Built-in geometric functions operate component-wise and the description is per-component. The type name floatn indicates that the function can take float, float2, float3, or float4 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.

If extended with cl_khr_fp64, generic type name gentype may indicate double and double{2|3|4} as arguments. If extended with cl_khr_fp16, generic type name gentype may indicate half and half{2|3|4} as arguments.


OpenCL Specification

Also see

Geometric Functions

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