Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: BigAl3D on 2020-12-28, 16:05:01

Title: Light Object vs. Light Material
Post by: BigAl3D on 2020-12-28, 16:05:01

Aside from IES capabilities, is there any reason I should use one or the other types of light for bunch of ceiling lights in a large interior? Here is a close to final render (only 10 passes) so you can see the context.

Title: Re: Light Object vs. Light Material
Post by: Beanzvision on 2020-12-29, 13:20:37

Hi, maybe this will help?
https://coronarenderer.freshdesk.com/support/solutions/articles/5000515603-should-i-use-corona-light-material-or-self-illumination-to-illuminate-my-scene-

Title: Re: Light Object vs. Light Material
Post by: BigAl3D on 2020-12-29, 15:58:26

Actually, that was very helpful. Thanks for pointing that out!

Title: Re: Light Object vs. Light Material
Post by: lollolo on 2020-12-29, 19:31:06

"Corona Light material technically does not differ from Corona lights"

That means same look, speed etc? 
Is it recommended to use low poly mesh for Corona Light material? Or is there no speed penalty if you use a high poly mesh?

Thanks and enjoy the time with your family!

Title: Re: Light Object vs. Light Material
Post by: TomG on 2021-01-04, 14:19:22

Lower poly is better (since each poly will become its own light, in effect, at render time). The penalty is not huge as polys go up, but still - always good to optimize where you can.

Title: Re: Light Object vs. Light Material
Post by: BigAl3D on 2021-01-05, 19:38:41

Also good to know about the polygons and light materials. Didn't know that.