Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: Dontcallmelater on 2024-03-30, 23:09:14

Title: Caustics and Texture baking in Corona 11
Post by: Dontcallmelater on 2024-03-30, 23:09:14

Dear Friends
Is anybody know or can help to bake a caustics from water into a textures through baking Corona 11?
As i notices there is a dots but not a real water reflection. During a rendering this dots become more transparent and light but does not transforms into a real caustic reflection.
PS. Caustics working well in interactive and production rendering.

Thank you for any info!

Title: Re: Caustics and Texture baking in Corona 11
Post by: romullus on 2024-03-31, 13:41:12

Reflections/ refractions can't be baked to texture, since they are view angle dependant. I believe the same applies to the caustics, although i'm not entirely sure about that.

Title: Re: Caustics and Texture baking in Corona 11
Post by: burnin on 2024-03-31, 18:57:07

Indeed, both phenomena are "view" dependent. Tho for second, faking VFX is easy using animated 'gobo light' texture, since human brain can't recognize 'correct' pattern (voronoi does the trick).

Title: Re: Caustics and Texture baking in Corona 11
Post by: pokoy on 2024-03-31, 20:15:46

Hmm, caustics should definitely be made to work with baking. They depend on light position/direction, viewing angle isn't really part of how caustics are produced in an otherwise static scene, just like GI.

Title: Re: Caustics and Texture baking in Corona 11
Post by: Dontcallmelater on 2024-04-01, 20:22:45

Quote from: burnin on 2024-03-31, 18:57:07

Indeed, both phenomena are "view" dependent. Tho for second, faking VFX is easy using animated 'gobo light' texture, since human brain can't recognize 'correct' pattern (voronoi does the trick).

Thanks for an IDEA, Is there any caustics gobo light?

Title: Re: Caustics and Texture baking in Corona 11
Post by: Dontcallmelater on 2024-04-01, 20:23:51

Quote from: pokoy on 2024-03-31, 20:15:46

Hmm, caustics should definitely be made to work with baking. They depend on light position/direction, viewing angle isn't really part of how caustics are produced in an otherwise static scene, just like GI.

Thanks I will try with a blank new scene? scene crushed several times and there was some issues with black rendering screen.

Title: Re: Caustics and Texture baking in Corona 11
Post by: Aram Avetisyan on 2024-04-04, 04:33:43

Generally, I would not have high expectations with texture baking, but it seems that the available render elements for baking in Corona give mostly the beauty (whole lighting information, including caustics), for the selected objects with the specified UV map, which I think can be used, at least to some degree, for baking.

I would go with the trial and error approach.
You can have a look at the screenshot and scene attached.