Jump to content
TobyGaines

Getting a semi-cloudy sky rendered w/o terabytes of ram

Recommended Posts

Without the render power to render a sky for each frame, I'd like to render one cloudy dome image instead. I've managed to render a 16k dome, but only with the wimpiest of clouds. Any ideas on how to render just bits of cloud at a time? Some way to automate a single cloud around, that changes in each new position, then I can comp them together - maybe if there's a world-coordinates feature it'll be easy, I'll try that ; but if any side is clipped, it won't work...

T.i.a.

Share this post


Link to post
Share on other sites

You can instance vdb clouds. It'll take less memory and you'll be able to render more of them. Make a few different models and instance them with a point cloud and then you're good to go ! With a RTX 2080 I've been able to render billions of voxels with instancing in redshift, so I assume if you render with mantra it'll be able to handle many voxels if they're instanced !

  • Like 1

Share this post


Link to post
Share on other sites
6 hours ago, DonRomano said:

You can instance vdb clouds. It'll take less memory and you'll be able to render more of them. Make a few different models and instance them with a point cloud and then you're good to go ! With a RTX 2080 I've been able to render billions of voxels with instancing in redshift, so I assume if you render with mantra it'll be able to handle many voxels if they're instanced !

I was going to try vdb, but I'm using the sky tool, and don't have enough ram to create the high-quality volume in the first place ; I will think about individual clouds, but I will need at least a dozen different ones in order to avoid being repetitive.

I think I can make one cloud that changes with translation, using Mountain to displace the original geo, and offsetting its noise by the translation.

Thanks DonRomano!

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×