Clouds

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B.Y.O.B.
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Clouds

Post by B.Y.O.B. » Sat Sep 29, 2018 4:24 pm

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.
Attachments
2018-09-29_18-18-30.png
top right: remap function made with nodes, below: the new "remap" node
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Re: Clouds

Post by B.Y.O.B. » Sun Sep 30, 2018 11:04 am

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.
Attachments
clouds_03_rend1.jpg
2018-09-30_13-00-31.png
nodes of the scattering texture
2018-09-30_13-05-04.png
volume settings. My stuff is not modelled to scale yet, so ignore the step size unit.
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Re: Clouds

Post by B.Y.O.B. » Thu Oct 18, 2018 1:34 pm

Some new experiments with a simpler setup.
Attachments
clouds_2_01rend1.jpg
clouds_2_01rend2denoised.png
Unbenannt.PNG
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provisory
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Re: Clouds

Post by provisory » Thu Oct 18, 2018 7:00 pm

Looks great!
It doesn't use hdri (only the built-in sun and sky) does it?

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Re: Clouds

Post by marcatore » Thu Oct 18, 2018 7:25 pm

Yes, it's really a good result.

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Re: Clouds

Post by B.Y.O.B. » Thu Oct 18, 2018 9:29 pm

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.
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