I want to make a shadow catcher

V-Ray V-Ray for SketchUp General
1

I try to make a shadow catcher object/material in SketchUp2026 and V-Ray 7.20.01. Google AI is absolutely convinced I have an Object Properties right-click menu which I have not.
Is it possible to make a shadow catcher in this SketchUp version?

I’ll be thankful for any human help

2

You can try google search instead of google ai..

3

Hello, @karins_skaug ,

To create a Shadow catcher simply apply a Wrapper material to a plane geometry. Set a Base material in the Wrapper - simple Generic material would work, enable Matte (you can also set Matte for Secondary to “Matte for Reflection and Refractions”) and enable Shadows. If you want to change the Background in post you need to set the Alpha Contribution of the Wrapper to 0 (Ignore in Alpha) or -1 (Black Alpha), use the latter with the GPU engine.
Here is an example:

Shadow_Catcher_Wrapper_Material.jpg
Shadow_Catcher_Wrapper_Material.jpg939×533 90.8 KB

You can check the scene (you can download the hdr map I am using from Cosmos - HDR Map 593): Shadow_Catcher_Wrapper_material.zip
Shadow_Catcher_Wrapper_material.zip (205 KB)