Hi! I’m using SketchUp Pro 2019 19.2.222 and Vray 4 (the last current version). So when I try to catch shadows, reflections, etc. with the help of Vray wrapper material everything works fine only while using CPU rendering. But when I switch it to GPU I can’t get the same result, i.e., shadows, reflections, etc. appears on not transparent plane although wrapper material applied and all the settings are the same. I have already read that in 3rd version of Vray GPU becomes able to work properly with wrapper material. So what’s the problem? Thanks!
Hello,
Please note there is partial support for Wrapper material for GPU.
To set the material for GPU make sure that Matte for Secondaries is disabled and Alpha Contribution is set to*(-1).*
Additionally, please check the following link on the same subject:Warpper shadow catcher, dome light and GPU mode - could it work? - General - Chaos Forum
aha, I have changed right now the diffuse colour of generic wrapper material from black to a little bit light and it works.
So what’s the conclusion?
Yes, on the GPU engine only shadows are currently supported, for now we have partial support for Wrapper material Chaos Docs.
Please note that we have a ticket logged in our internal system for implementation of additional Matte options.