"Volumetric" Clouds (WIP)

Hello! This is a system i started making for fun because why not, and has turned into something I’ve actually started really focusing on.

The whole method is extremely simple, but my execution is the reason it looks very well
The whole idea is well, stacking decals!

Now, there are some issues and questions you’d probably have about this
1, you can go above and below them, but they show flaws when you are perpendicular, which is why i am going to apply fog when you reach the general height of a layer.

2, Why would you use this over roblox clouds?
1, the light scattering on roblox clouds is, honestly, quite bad
2, You can’t go above them!
3, these are smooth, and feel physical, Robloxs feel well, snappy and like they’re always changing

Now i plan on opensourcing this and making it a plugin, but you can make many types of clouds with just 1 single decal you provide it.

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It looks awesome, but is there like a template for the decal or will it automatically make it even if the decal is like a red background?

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You can put in any decal, but the best would to be put in perlin noise with density
You also have to make sure the edges have blur and it’s very smooth or else you’ll see seam lines just about everywhere
So no, there isn’t a template currently made but I will probably make one.

I like clouds :> idk why this asks for at least 30 chs, its annoying

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new clouds

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looks sick, seems so much more fluffy and physical than roblox’s clouds.
how’s the performance though? would be hilarious if they run faster than roblox’s (they use tons of draw calls).

It’s quite good acutally
I wouldn’t say its better then normal roblox clouds yet, still optimizing the layering the best I can
but with 5 decal layers at very high heights (still looks good), it gets pretty close to beating robox clouds

Once i implement some form of culling, i wouldn’t be surprised if it runs better

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saw this in ca inc, really cool and i cant wait to see the finished product! (cant imagine the strain it puts on a laptop)

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It probably puts some strain on a laptop at the moment
would like to get it to run well on most devices (Thats my goal)

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Added density controls, allows for clouds to have varying transparency instead of being solid

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Seems great, I’m trying to make a game that pushes Roblox to its limits (graphics wise) and I’ll be using this if it ever goes published.

image
I might release the clouds with a lighting package
Got a little sidetracked, has GI and volumetrics and fog
would send the video of the GI but stupid size limits so i’ll send some pictures of volumetrics (it’s realtime)

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If you do open source this I cant wait to use it! Looks amazing and im sick of the built in choppy clouds that dont look how I want

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More GI work
Has material properties, colorbleeding, indirect + direct, handles lights, chunking, light propagation, etc etc

https://cdn.discordapp.com/attachments/975544271392354414/1304858385560371252/2024-11-09_11-20-27.mp4?ex=6730eb92&is=672f9a12&hm=ccec22c687037968b76ab622d620a06d8ebd21f614f8666238b82e2ff3de82aa&
(not sure if these links work)

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Could you explain the stacking decals part a bit more? I don’t quite understand the implementation