When I render the frame hierarchy, I want to, say write to the 5th matrix slot in the shader, how can I do that?

thanks

Jack

	float4x4 FinalTransforms[35];
	

	l_effect->SetMatrixArray("FinalTransforms", &pMeshContainer->pBoneMatrices[0], pMeshContainer->pSkinInfo->GetNumBones());
	

It doesn't look like there's an API to do that on Unity, but you could have a cached version of the matrix array, modify a single element and call SetMatrixArray again.

At the low level, most of the time you don't end up patching constant buffers anyway, you just send the whole thing again.