#include using namespace metal; kernel void tint_symbol() { float3x3 m = float3x3(float3(1.0f, 2.0f, 3.0f), float3(4.0f, 5.0f, 6.0f), float3(7.0f, 8.0f, 9.0f)); thread float3* const v = &(m[1]); *(v) = float3(5.0f, 5.0f, 5.0f); return; }