Orbit Clouds WIP

Started by Hetzen, August 18, 2008, 10:53:36 AM

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Hetzen

Here is a test shot of where I'm at. I've used a popular earth cloud mask to define where the clouds form. The numbers on the ground relate to a grid I've set up, so I can blend in a higher definition mask and create a more interesting formation out of satelite photos in Photoshop.

I've used three Cloud shaders to vary the height with decreasing coverage, to break up uniformity in the Y.

I've realised I need to design more variation in cloud structures, as well as playing around with the internal cloud lighting settings. Plus add the obligitary high altitude whispy stratus.

Any suggestions or comments would be appreciated.

Cheers

Jon


cyphyr

Looking good, no advice at all just remember that the scales used will be LARGE as in HUGE :) Although thinking about this it may not be an issue given that your using real world satalite images as your blend shader mask.
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Hetzen

The map shouldn't be much larger than 4k, as I'm going to alpha mask the edges and placed ontop of the global clouds map (8k planar mapped) through a seperate Image Map Shader with the placement offset, to cover 4x4 of those grid sqaures (3x3 if I can get away with it).

What I did do is add in some low scale noise to break up the scaling, which is quite a neat little trick. (Pats own head  :P)

Hetzen

Second stage, applying masks to formations to form weather patterns.

I need to 'fill in' around the swirl at a lower altitude, to break up the hard shape a little. Since this render I've added a lower 'coverage adjust' on a new layer with a higher altitude to break up some of the flattness ontop of the storm front, and have got into lowering Haze and Atmosphere densities so that I can see the land.

This one took 1hr 20mins to do. With Quality 1, AA 3. GI set at minimum. Soft shadows off (for the moment, hence the beams)

What I have found would be a usefull feature, is some sort of 'solo button', so that I can turn off layers by pressing a button on a layer I'm working on. But then I would guess that could cause problems on identifying which node is actualy producing an input into the stream.

Talking outloud as usual. If anybody has any suggestions on anything, I'd appreciate another view.

Thanks

Jon

inkydigit

both look great..although the clouds in the second one look a bit too squashed at their ceiling, apart from that....super job!

Tangled-Universe

I tend to agree a bit with inky, however I really like the update a lot. I think the depth and sense of scale are awesome.
Also like the lighting and rays a lot!

Hetzen

Thank you. I'm currently rendering out an update image, which should take care of the 'flatness'.

The idea is to get the Sun elevation to rise a couple of degrees over 150 frames, so I get movement in red fall off and shadows. Not sue if I can get the planet to rotate too, I fear another test. The outcome will dictate on whether I say 'fuck it', and render out a 4k plate instead. But it would be seriously cool to get very minor 3D movement over that time.

Oshyan

This sounds like a really cool project. Keep us posted!

- Oshyan

rcallicotte

This is interesting.  Looks real.
So this is Disney World.  Can we live here?

Hetzen

Ta

This render has unfortunately lost 'something' and I think it's down to decreasing the atmosphere density. I've lost some of the red hues in the fall off region, and lost some glow.

I also switched on soft shadows with a setting of 10 10, which bumped this render to over 5 hrs on my quad core machine. The idea was to lessen the atmosphere rays. But this is way too long to animate, even with 3x dual processor quad core machines to chug out the frames, and a cheesy lens flare will soften that. We'll see.

I've kicked off another render, with a basic alpine terrain (which I know doesn't look right, it's for me to gauge render time and atmosphere settings), which I'll post once done.

Hetzen

Another feature request, could there be a skip existing frames option. I could see this as being very usefull. I'd want to render out those 150 frames on every 25/12, then fill in if all's going well.

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Hetzen

Latest render, then a contrast version, finally with a lens flare ;D

Hetzen

Contrasted.

Hetzen

Lens flare.

I've just kicked off a low quality 100 frame render with the sun elevating. Look forward to seeing it the morning.