something should be on screen but my fast_affine.hlsl is busted

devsh · devsh · commit 3fa43e2fcdfa · 2025-06-19T02:58:31.000+02:00
diff --git a/examples_tests b/examples_tests
@@ -1 +1 @@
-Subproject commit 08c28efbe827edf85c564894c86d591841a938ed
+Subproject commit 62f1a2684f6bc21f5c7f6bd84ed552f248f64657
diff --git a/include/nbl/builtin/hlsl/math/linalg/fast_affine.hlsl b/include/nbl/builtin/hlsl/math/linalg/fast_affine.hlsl
@@ -38,7 +38,9 @@ matrix<T,N,M> promoted_mul(NBL_CONST_REF_ARG(matrix<T,N,P>) lhs, NBL_CONST_REF_A
     // out[i] == lhs[i][0]*rhs[0]+...+lhs[i][3]*rhs[3]
     NBL_UNROLL for (uint32_t i=0; i<N; i++)
     {
-        vector<T,M> acc = rhs[i];
+        vector<T,M> acc = i<Q ? rhs[i]:promote<vector<T,M> >(0);
+        if (i>=Q)
+            acc[i] = T(1);
         // multiply if not outside of `lhs` matrix
         // otherwise the diagonal element is just unity
         if (i<P)
