Excluding objects from rendering but still casting shadows

Rendering V-Ray
1

Dear All,

I’m trying to exclude the crowns of trees from a render scene but I still wanna see the shadows hitting the ground…
Any idea how I could get this effect? Seems like my skills are not experianced enough…
I’m using Rhino V5 and VRAY…

Best,
Michi

2

Michi,
You can turn the sun on and set it at the required angle for your shadows.
Danny

3

Danny,
Thanks for your advice.
I’m using the sun for lighting…
My shadow is already perfect… I just don’t wanna see the treeobject… the tree should cast shadow but shouldn’t be visible in the rendering…
Michi

4

I think you’ll have to turn on the ‘only in secondary’ option for all of your tree materials for this to happen.

5

Thanks a lot!!!
‘only in secondary’ works perfect!!!
great!!!