Excluding objects from GI

Corona Corona for 3ds Max Help Required
1

hello,
I’m new here and I’m testing Corona right now…all my windows have 2 panels of glass with thickness of course per each panel so to speed up the rendering and reducing the noise I would like to exclude the glass from GI…I don’t see Corona properties per object anywhere. How can I exclude them?

Thanks,

Fernando

2

Use CoronaRaySwitcher material. Plug glass material to every but GI slot and assign it to glass objects.