VrayBumpMtl to support multiple normal map like Vray GPU
Needed to use two normal maps with different coordinates when using UVW Randomizer and stohastic tiling on one of the normal maps and without on another.
We use Camera Map Per Pixel a lot when we add 3D products to an AI generated image. Bij adding this to a curved backplane we can render the product into the AI generated image with schadows and reflections.