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December 12, 2009
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Vue clouds test2 by priteeboy Vue clouds test2 by priteeboy
A modified version of the same scene as seen in Vue clouds test1 but more cloud layers used again. This time there's six in total, one forming the common total cloud-cover at the bottom, another forming smaller isolated clumps of rising clouds (made to look like part of that bottom layer) a third layer for the huge cumulonimbus towers (focusing on just one here), a fourth to make their "anvils" (smeared clouds sitting atop them) and the fith is just those small fragments of altocumulus-like clouds that just add extra detail...The sixth is really just a standard cloud layer forming some cirrus clouds higher up :faint:

So there you have it, my advice to Vue users looking for natural but higly-detailed skies is don't expect just one or two cloud layers to do the trick. I'm Actually working on an atmosphere pack I might try and sell on Cornucopia3D (though they're made to be viewed from the ground so these skies won't be in the pack) and each atmosphere will have a minimum of two spectral cloud layers and three in total, but often they use more 8-)

Ugh, I must warn that the downside is they take ages to render, this took 11 and a half hours to render at "final" at a resolution of 1400x875. What's worse is that halfway through the first render my computer decided to turn itself off and I had to start again :rage:

Rendered in Vue 7 infinite, some incredibly minor postwork, not to the clouds themselves though :floating:

All artwork made and copyrighted by me. Please do not use any of my images without my permission
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:iconban---kai:
BAN---KAI Aug 27, 2011  Hobbyist Digital Artist
looks great, i cant use the damn clouds cause they got to many polygons
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:iconpriteeboy:
priteeboy Aug 29, 2011  Hobbyist Digital Artist
Really? Metaclouds normally don't have nearly as many polygons as just one good Vue tree or terrain :O
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:iconban---kai:
BAN---KAI Aug 29, 2011  Hobbyist Digital Artist
i can add terain to infinity without getting low speed but when i add that comunculus cloud or whatever its called it got above million polygons xD
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:iconmoviematters:
Thanks for pointing me to this image of yours :)

As you said those clouds aren't nearly as good as TG2's cumulonimbus, but for Vue standards that's some very fine work :) I'm curious how the finished product will look like.
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:iconpriteeboy:
priteeboy Feb 18, 2010  Hobbyist Digital Artist
Thanks, I think my main concern is the settings for the clouds now rather than the shape (need more puffyness rather than stuff that looks like it came out of a fire extinguisher :laughing:) I think I had to use three cloud layers with similar functions to build this up...only problem is that others also appear everywhere in the background too :clone:

A better attempt (but with a smaller view of it) can be seen as I multitask with other projects here [link] better than this, not better than TG2's still :shakefist:
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:iconmoviematters:
A good way to produce nice clouds in Vue is to keep the detail amount slider at a really low value, because this slider breaks the cloud layer up in those bubble-esque things that don't look so good. YOu get better results if you create your details with the function editor.

A FE example: [link]

The result: [link]

The perlin noise node wit the brightness-contrast filter creates the basic form of the clouds, in this case a round one. I blended it with a grainy fractal in order to get some noise at the edges of the round forms. The detail amount slider was set to 10 %, so almost no detail excpet for some very fine density variations. This way I also created the clouds in my "Cloud Concert" scene. The obvious downside to this is the much longer render time.
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:iconpriteeboy:
priteeboy Feb 19, 2010  Hobbyist Digital Artist
I only discovered that relativly recently too as I have been spending ages making a huge spectral atmosphere pack I hope to sell on Crnucopia 3D and I was really fussy with the clouds. I rarely used a detail amount higher than 20% too unless I want a thin layer of broken-up altocumulus-like clouds...I've made different functions for certain situations but my most common seems to be a mix of a Basic Repeater (the scale is around 0.5 and amplitude around 0.7 which creates a fairly detailed roughness but not as render-heavy as other fractal types) and to distribute them - a larger-scaled Perlin/Noise node...guess we were on similar mindsets :D
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:iconmoviematters:
Yes, I think so, too :)

I'd love to see an overhaul of Vue's Metacloudsystem for Vue 9, which pretty much sucks at the moment :(. Also, it would be great if we could drive the noise created by the details slider with a selfmade function, independently from the density production.

Here is a WIP from a tropical scene I am working on right now. I experimented for hours with metaclouds in order to get those big cumulonimbus-like formations that you often see on tropical photos: [link]
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:iconpriteeboy:
priteeboy Feb 19, 2010  Hobbyist Digital Artist
Yeah, the metaclouds seem to be good for smaller cumulus-like clouds but still not cumulonimbus material yet, one thing I noticed is that the "detail amount" is more like a plain noise, it creates "blobs" rather than "puffs" which would probably need a cellular or vornoi-like function to simulate the billowing cauliflower-like form...Cumulonimbus clouds mostly impress me since they often have ultra-sharp details that look like you could walk on them, so they're my most highly-coveted cloud type in Vue, If I ever saw someone make a metacloud type or material that created clouds like this [link] I'd probably pay a fair bit for it (though I'd hope they were generous and make it cheap, Vue users need it badly! :lol:)

That scene's looking nice so far, though I was actually more impressed by the caustics in the water :wow:
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:iconmoviematters:
Hehe, I've been looking at exactly the same picture countless times before ;) One issue with the current cloud system ist also the inability to select different sharpness values for different parts of the clouds, e.g. a very soft look for a cloud's bottom and a high sharpness for the billowy details or something like that. You have to combine several cloud layers or metaclouds to achieve this effect. So this is also a reason why cumulonimbus clouds are so hard to get right in Vue.

The scene itself is nothing special (so far, this will change :) ), except for the water and the clouds :). The caustics are a simple image map overlay that I created with the free caustics generator from [link] . I've never managed to get 'real' caustics for water in Vue, because the lighting circumstances have to be so special. Besides, the manual also states that caustics can't be generated for infinite planes.
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