RWByteAddressBuffer ssbo : register(u0); float2x2 ssbo_load(uint offset) { return float2x2(asfloat(ssbo.Load2((offset + 0u))), asfloat(ssbo.Load2((offset + 8u)))); } void ssbo_store(uint offset, float2x2 value) { ssbo.Store2((offset + 0u), asuint(value[0u])); ssbo.Store2((offset + 8u), asuint(value[1u])); } [numthreads(1, 1, 1)] void f() { const float2x2 v = ssbo_load(0u); ssbo_store(0u, v); return; }