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Clouds

Posted: Sat Sep 29, 2018 4:24 pm
by B.Y.O.B.
I'm currently trying to render some clouds since I stumbled upon this talk: https://youtu.be/-d8qT5-1LOI
For this I needed the remap function.
I first formed it out of nodes (the new_math_textures branch has a new "divide" texture).
But this is a) clunky to use with a lot of nodes and b) slow.

So I implemented a new "remap" texture in LuxCore. This roughly doubled my Samples/Sec.

All of this is only in the new_math_textures branch so far, I need to write the OpenCL versions before I can merge anything into the master branch.

Re: Clouds

Posted: Sun Sep 30, 2018 11:04 am
by B.Y.O.B.
My clouds don't look remotely like I want them, yet.
But here's a 12 minute render of the setup I have so far.

Re: Clouds

Posted: Thu Oct 18, 2018 1:34 pm
by B.Y.O.B.
Some new experiments with a simpler setup.

Re: Clouds

Posted: Thu Oct 18, 2018 7:00 pm
by provisory
Looks great!
It doesn't use hdri (only the built-in sun and sky) does it?

Re: Clouds

Posted: Thu Oct 18, 2018 7:25 pm
by marcatore
Yes, it's really a good result.

Re: Clouds

Posted: Thu Oct 18, 2018 9:29 pm
by B.Y.O.B.
provisory wrote: Thu Oct 18, 2018 7:00 pm It doesn't use hdri (only the built-in sun and sky) does it?
Yes, only the built-in sun and sky.

Re: Clouds

Posted: Fri Oct 19, 2018 9:35 am
by FarbigeWelt
This is what I call innovation.

This procedural clouds look phantastic!

Re: Clouds

Posted: Thu Oct 25, 2018 8:54 pm
by B.Y.O.B.
I just wanted to do some ground fog, but then I added in a few mountains and two cloud layers on top.
The mountain texture obviously needs to be improved, and the ground fog is a) to dense and b) seems to show some stepping artifacts on the left (although I changed step size and max steps and it didn't help).

Render time around 2 hours with Path OpenCL on HD 7970.

Re: Clouds

Posted: Fri Oct 26, 2018 3:44 pm
by FarbigeWelt
Astonishing!
I like the composition with the glares especially.

Re: Clouds

Posted: Fri Oct 26, 2018 4:12 pm
by B.Y.O.B.
Thanks.
Remind me to upload the files after the next LuxCore release is out (you need the latest binaries, otherwise they don't work).