Updated to use XMFLOAT3X4 when available

Src/SkinnedEffect.cpp

@@ -538,11 +538,16 @@ void SkinnedEffect::SetBoneTransforms(_In_reads_(count) XMMATRIX const* value, s
 
     for (size_t i = 0; i < count; i++)
     {
+#if DIRECTX_MATH_VERSION >= 313
+        XMStoreFloat3x4A(reinterpret_cast<XMFLOAT3X4A*>(&boneConstant[i]), value[i]);
+#else
+        // Xbox One XDK has an older version of DirectXMath
         XMMATRIX boneMatrix = XMMatrixTranspose(value[i]);
 
         boneConstant[i][0] = boneMatrix.r[0];
         boneConstant[i][1] = boneMatrix.r[1];
         boneConstant[i][2] = boneMatrix.r[2];
+#endif
     }
 
     pImpl->dirtyFlags |= EffectDirtyFlags::ConstantBuffer;