Quote - > Quote - And anyway, I don't ant it not to to receive ray traced light - just not shadows.

 

That's funny, as a shadow just means that there is less light because something else blocks the light and casts the shadow... So if the object does not receive a shadow, the shadow casting object must not be present or set to not cast shadows...
So you'll need to render twice, once without the shadow casting object and once with the shadow casting object and then combine both renders...

Which was exactly what I was trying to avoid as there are dozens of shadow casting objects, and I was also trying to avoid post compositing.

But thanks anyway.