Corona Ocean shader - like Mental Ray

[3dwannab]

Yep, sorry. I've rendered it with a new Corona 1.2 displacement. 1.2 version should be out next week, so you can give it a try straight ahead. Or, you can simply put displace modifier on top of the plane, and plug the map i used for displacement in there. :)

Adds an interesting point that, it would be nice that Corona materials could remember that a modifier is part of the material and automatically adds that modifier.

[3dwannab]

I used the file Rawalanche and tweaked it (I hope you don't mind) I used bercon maps being a BM fanboy n all :) in my example with bercon mapping map also. All are found here for 2015 anyway: https://corona-renderer.com/blog/offtopic-bercon-maps-for-3dsmax-2015/

Mist, fog and cloud affects also were added to 3 boxes. Mist one with noise added 30cm high. Fog was large box and cloud box was over the entire scene to have an ever so subtle effect on final outcome.

Not included is a Peter Guthrie EXR map which was a giveaway for free at Christmas I think. HDRi - 0707 Dawn Sun. You'll have to provide your own HDRi / exr file. Sorry, at the time of doing this I thought it was still available for free.

See below scene and renders.

[Juraj]

Also i like to add an excellent texture map that comes with Phoenix FD called PhoenixFDOceanTex i just tested it using Displacement in Corona material with good result.
This implementation from chaosgroup is better cause is a procedural texture both vector based or normal based, and the result has no tiling whatsoever.
You can even extract (render) the map for later use in order to get rid of the plugin.

Disregard tearing edges. Rendered in corona 6

Boris, did this work with Bump map as well ? Or just displacement ?

[Juraj]

I used the file Rawalanche and tweaked it (I hope you don't mind) I used bercon maps being a BM fanboy n all :) in my example with bercon mapping map also. All are found here for 2015 anyway: https://corona-renderer.com/blog/offtopic-bercon-maps-for-3dsmax-2015/

Mist, fog and cloud affects also were added to 3 boxes. Mist one with noise added 30cm high. Fog was large box and cloud box was over the entire scene to have an ever so subtle effect on final outcome.

Not included is a Peter Guthrie EXR map which was a giveaway for free at Christmas I think. HDRi - 0707 Dawn Sun. You'll have to provide your own HDRi / exr file. Sorry, at the time of doing this I thought it was still available for free.

See below scene and renders.

Downloaded this scene to give it a test. 2560px, Disp (2px) takes 10 minutes on 40 cores.... is this normal ? I can't find reasonable way to use the displacement with times like this.

[3dwannab]

Did you hide the fog, mist and cloud geos? That might be it.

Just tested - It takes longer to parse the scene with them hidden which is strange. But give that and go and see. Play with the displace values to get a different feel also.

See after 5mins with my machine with same 2pxdisplace & output res as yours.

[Juraj]

I deleted them even :- ) But even on fresh scene with simplest procedurals I find the time abysmal...

[3dwannab]

:] Not sure how the new Siger Noise holds up. Could be just the bercon noise map causing the Issue. Those two maps are pretty similar so shouldn't be too hard to translate one map to the other to quickly test.

Something to look into by the devs maybe.

[Juraj]

In the end, I used the smaller part of your Bercon Noise as bump map, works OK-ish. So thank you for uploading this :- ).

I need ocean surface with almost 1km x 1km, and displacement just...both takes long, and doesn't even look impressive at all. Not sure if this pre-calc thing is good thing.

[3dwannab]

It really does depend on the look you want. I've went and tried out siger maps. I've simplified the shader a bit and I ended up with sort of a rip current effect. 200% speed up time roughly with this shader than the previous one.

I do like these Siger Maps a lot. They update in VFB better than Bercons also which is nice. There was problems with the Bercon maps in the displace slot before.

See result and .max file.