V-Ray implementation of Ray Portal BSDF is expected. The Blender version is below. https://docs.blender.org/manual/en/4.3/render/shader_nodes/shader/ray_portal.html
Is there a possibility to use Corona maps for GPU? There are some maps very useful that Vray doesnt have (Corona Tiles, Corona Front/Back, Corona Map Select, Corona Color Correct)
Other renderers can convert textures to a tiled and mipmapped texture format before rendering automatically. The maps referenced in materials would still be pointing to the original png or jpg but the renderer will auto convert those to .tx or .ra...
AutoCorrect Gamma to NormalMap when using MultisubTex
Sometimes I use multiple maps in multisubTex and when its time to connect the normals, the auto gamma its not adjusted, this could be very handy to have rather to apply it manually to each texture