Hi,
I have a glass and want water bump to be only on one side of a glass object. When I have only one material with bump on both sides (polygons), it looks ok. When I put one ID on one polygon and second ID on the other one, glass refraction is totaly wrong. I tried make two objects but its the same. How can I make this right? I need some water only on one side.
Thank you.
post your material settings that we can take a look
Unwrap is the only way Jirko. Get rid of two IDs , use only one and unwrap the box and apply the texture with the bump only on one side and leave the rest of the polys black. Same applies to glossy and other materials. When using two ids, vray sees the objects as two materials and so the calculation is wrong.
I have two IDs even in correct version, but it uses only one material for both IDs.
But you are right, unwrap is a solution, thank you.