Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Feature Requests => [Max] Resolved Feature Requests => Topic started by: bulyfabi on 2017-10-11, 11:10:40

Title: Cylinder Corona light flip
Post by: bulyfabi on 2017-10-11, 11:10:40
Can we have small switch on cylinder light between lighting inside or outside?

*prettyplease* thanks
Title: Re: Cylinder Corona light flip
Post by: romullus on 2017-10-11, 11:44:38
You can tick option "emit from both sides", maybe that would solve youre request?
Title: Re: Cylinder Corona light flip
Post by: bulyfabi on 2017-10-11, 17:18:22
You can tick option "emit from both sides", maybe that would solve youre request?

That's unfortunately not available on cylinder (and sphere).
Title: Re: Cylinder Corona light flip
Post by: romullus on 2017-10-11, 20:37:35
Oh sorry, didn't know that. In that case you can use cylinder primitive with flipped normals and CoronaLight material assigned.
Title: Re: Cylinder Corona light flip
Post by: bulyfabi on 2017-10-12, 10:00:13
Yep, that's kind of what I do. Is lightmtl still affecting preformance (noise, speed ect.) or it's not a thing anymore.. ?
Title: Re: Cylinder Corona light flip
Post by: romullus on 2017-10-12, 10:43:33
If your cylinder won't be unnecessary subdivided, difference in performance shouldn't be significant.
Title: Re: Cylinder Corona light flip
Post by: Ondra on 2017-10-17, 15:25:46
in fact it will be exactly the same for cylindrical light ;)
Title: Re: Cylinder Corona light flip
Post by: shafky on 2024-06-08, 15:33:49
Unfortunately, there's no such options available - even today in Corona 11 (Latest one). Very unfortunate...
But now to deal with the problem, what I did is, I draw a surface around the light (You can draw a circle and extrude it, with edit poly you can delete both the faces but keep only the height face), and apply Mirror material (99 reflective) to that height face, so It will reflect the light. It worked for me, may be it will help others too.
Title: Re: Cylinder Corona light flip
Post by: romullus on 2024-06-08, 20:30:42
Unfortunately, there's no such options available - even today in Corona 11 (Latest one). Very unfortunate...
But now to deal with the problem, what I did is, I draw a surface around the light (You can draw a circle and extrude it, with edit poly you can delete both the faces but keep only the height face), and apply Mirror material (99 reflective) to that height face, so It will reflect the light. It worked for me, may be it will help others too.

That's extremely inefficient way to do this. Much better way is to make cylinder (or extruded circle), flip its normals and apply Corona light material, just as described few messages above.