Corona 1.4 & Caustic

[Frood]

Err... don´t you just have to press "+" in the rollout title bar? In your screenshot it´s collapsed.

BTW: Yours is not 1.4 final.

Good Luck!

[cecofuli]

(O_____O)'

[Cheesemsmsm]

Why are you still using daily build?
mine is the same as Frood's

[Juraj]

PS: these are real caustics, not a fake. And they are very fast!

Nope, they are not fast. I tried using this on few occasions, only the water, to composite it with rest of the image with progressive in post.

Even though they docaustics, and they become visible rather instantly, the noise would never clear. It would do the funny 70 000 passses (I kept it running for 24 hours just for fun) and there would still be noise.

They're not advisable to use because they don't support feature, but because they don't even work well imho. Which is sad...because Caustics would fucking rock !

[Ondra]

the thing about photons is that they can sometimes never converge, and even if they do, they converge asymptotically slower than path tracing - that means that as the render progresses, they become infinitely slower than path tracing. So juraj's observed behavior is consistent with the theory

[Juraj]

Although I wonder what denoising would do, but this combination probably doesn't work together.

[Ondra]

it would probably work pretty bad, since its theory is derived for uncorrelated monte carlo noise, not for correlated photon noise. Also "sample" has completely different meaning in photon mapping than in path tracing

[gerets]

More test and attemps...this is my result :

[cecofuli]

Juraj_Talcik, I mean, they are fast than Progressive or any other method in Corona.
Obviously, we cannot compare to V-Ray caustics or with any other Renderer.  But... in some way, they works =)

[Ondra]

More test and attemps...this is my result :

Looks nice, how exactly did you render that?

[romullus]

More test and attemps...this is my result :

Looks nice, how exactly did you render that?

This isn't Corona, look at those glowing balls - no shadow terminator :] Just kidding, author please share the knowledge, i think many reaaaly would like to know how to do such beautiful pools :]

[PROH]

Totally agrees :) I would love to know how to do such nice pools!

[gerets]

just moment...1-2 hours and I can share my experience with some image

[cecofuli]

I think that it's possible with Corona+VCM & Compositing the pool with the rest of the image.
You can have a nice Caustics and good GI.

[Juraj]

Does VCM support absorbtion ?