How do I light with the SUN only but make shadows only with a defferent light?

[Morne]

Hi all

As the title says I'm trying to do just that. Inlcude Exclude does not work as when you exlude lighting up one object, it also does not produce a shadow onto it from another.

I have a floor and an object on it. I want to light up both objects with one high light such as the VRay sun wihout having the smaller object on the floor produce a shadow. Then I want to produce a shadow from the smaller object onto the floor with a VRay light lower than the 1st, but wihout ligthing up either object.

I've also posted in off topic but did not get solution to the problem. So I'm posting here as it relates to VRay since I'm not sure how to do this. I've never worked with seperate passes and render elements so not sure if I need to for this problem. Maybe a matte object could help somehow?

Any pointers?

[MoonDoggie]

For the sun, exclude the smaller object from just shadow casting, then on the vraylight, include only the smaller object, but turn it off to Affect Diffuse. yes?

[Morne]

I've tried your suggestion Moondoggie but it does not work
the 1st part is easy. But making a shodow without a light cant be done it seems?

[ruud3dv]

If you'd render in passes and combine in post you could render the passes for each light seperately and then combine the desired shadow/lighting.