Chaos Corona Forum
Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: Njen on 2016-09-05, 19:11:53
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I'm modelling an interior scene and the ceiling has a few grate objects that can see out to the sky. I have attached an image that shows the top of one of these grates (though we see them from underneath). I have an existing single quad light portal inside the red lines, but the portal object shares a coplanar space with some of the geometry of the grate(example areas marked in green).
The question I have: is it more efficient to put lots of tiny quad portals inside each grate hole, or keep the existing single quad even with the coplanar faces it shares?
I hope what I wrote makes sense.
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Is there any answer to this?
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Sorry, I somehow missed your post.
The portal geometry should never intersect with other objects. My advise would be to move it up a little bit. It's a bit like example 5 or 6 here:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000501660
I would not recommend placing tiny square portals in this case since then there would be some geometry behind them.
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In your scenario i definitely would want to check if adding portals helps at all. It may be quite opposite with such windows geometry.