How to cancel the light reflected from a material to bounce back on another (white ceiling reflecting the green of the grass)

Hi

The ceiling paint keep rendering down some green light from the grass
I tried many methods to avoid reflecting green light from the grass; I tired override reflection with white color
I set to 0 the reflection and glossiness of the paint, did not work
Do you have any solution?

Thank you in advance.

Hi, I think that is the color mapping not available on Vray 3 for sketchup. I dont understand why they got rid of it…Question for the developers: why you cut down options instead of hide them??

The option is still available but you have to set it up on the standalone script… there is a video on youtube, it’s in Spanish but you can get the idea.

Thank you
unfortunately the command prompt say that there is an error in the code ( “{” is missing) despite not changing a word!