planetary atmosphere challenge.

[super gnu]

I note that no dev types have commented on this thread as yet...that's probably because they are already hard at work on the fixes and upgrades

i suspect also because its not currently possible to simulate an earth atmosphere realistically in vray

[piotrus3333]

quite late to the party but I loved the idea right away.
GPU, VolumeGrid, VRayDistanceTex.


and reference:

[piotrus3333]

sunset, better maps:

edit: replaced 006 with the moon (displacement)

[fixeighted]

Just thinking again about this...sort of.
I need an earth zoom for a hopefully upcoming project and the issue is the size of the Earth map.
I guess @supergnu, that you got yours from the same company as you are doing this for?
If not, and you didn't find them already, I managed to hunt down a repository for the enormous maps from
2004 http://www.opengutenberg.net/nasa/bmng/world_500m/
They may still be at the NASA site but this is a simple list, so still worth bookmarking.

It contains tiles for 12 months of seasonal change, so very useful for anyone else that could use them.
Final image is 86k wide/1.3gb, which was impossible to use when I first found these almost 20 years ago, or whenever they first
were published...now, no problem

[kosso_olli]

sunset, better maps:

edit: replaced 006 with the moon (displacement)

Wow, this is fantastic!

[piotrus3333]

anybody tried that with GPU?

[piotrus3333]

next time I will try CPU. volume grid gets way too big on GPU as there is no way to cut it with geo. it's too slow but atmosphere behaves quite ok I guess (no ozone and mie accounted for).

max file attached (2020).

also version with VRayFastSSS2 (simple):

[fixeighted]

I would love to but my 2080ti can't handle the textures

Moon image looks great

[piotrus3333]

I would love to but my 2080ti can't handle the textures

Moon image looks great

moon shot is a ripoff from nasa’s gallery, there was no memory left for displacing clouds..

can you fill VRayVolumeGrid with VRayDistanceTex on cpu? I think this setup could be faster on cpu (fraction of grid size).

[fixeighted]

Yeah all my tests were cpu and I can't remember having any problems with all
the sss, displacement, vgrid and whatever else.
I think I might have tried gpu and probably as usual something immediately was unsupported so reverted to cpu
to save the hassle.

[fixeighted]

I thought this was an inspired presentation and worth watching the entirety of, although the planetary stuff is mostly at the end.
I also thought, if a Blender addon can do this then surely Vray is capable of doing so, so someone please tell me it's being worked on right now
https://www.youtube.com/watch?v=81pi...hannel=Blender

The addon is here https://www.blendermarket.com/produc...estial-objects

[super gnu]

ok well that is depressing! ive bashed my head against a wall for many many hours on my earth model... most things i try absolutely kill rendertimes and nothing looks "right" in all scenarios..

now i see blender can do it in realtime with intuitive controls and all the subtleties ive been failing to create.

come on chaosgroup! some more shaders pls, or a tutorial as to how to achieve what they are doing there from one of your experts..? ... its not like autodesk are gonna do it (ha!)