Vray Mass Material Editor

Simple script, that walks through all Vray Materials (including Sub Materials of Multimaterials, VrayBlendMtl, Vray2Sided, VrayBump etc. including Sub-Sub...and Sub-Sub-Sub Materials) to make mass-changes like adjust Glossy Reflection Samples, Enable/Disable Bump Maps, change Trace Depth etc. ----New---- Added checkbox "Affect selected objects only". Please remember, if selected and not-selected objects share Materials/Material Instances, also the materials of the not selected objects will be affected, of course. Have fun, use at your own risk!