reference/shaders-msl/comp/image-cube-array-load-store.comp

#include <metal_stdlib>
#include <simd/simd.h>

using namespace metal;

kernel void main0(texturecube_array<float> uImageIn [[texture(0)]], texturecube_array<float, access::write> uImageOut [[texture(1)]])
{
    int3 coord = int3(9, 7, 11);
    float4 indata = uImageIn.read(uint2(coord.xy), uint(coord.z) % 6u, uint(coord.z) / 6u);
    uImageOut.write(indata, uint2(coord.xy), uint(coord.z) % 6u, uint(coord.z) / 6u);
}