Mt. St. Helen

pixelpusher636 · October 31, 2021, 11:48:36 PM

Quote from: WAS on October 31, 2021, 04:04:08 PMMy issue so far is getting daniil's plugin to play nicely. Currently it seems no matter how low I go on down cutting, it still wants to really cut deep into the mountain. I just want it to a accent what smaller detail erosion would be missing from detail. I may actually have to use a series of erosions and masks used as intensity to defeat my issue.

That might indeed be the way to go. That's how I've been playing it today. Painted shader for erosion mask. Slow tedious process but I'm getting good results. The snow still doesn't look right even if the terrain does.

Dune · November 01, 2021, 02:24:04 AM

I guess the terrain is too rough to begin with for snow. You may need to smooth the heightmap in PS, and make a combi in TG.

mhaze · November 01, 2021, 05:01:57 AM

Great work!

pixelpusher636 · November 01, 2021, 09:08:58 AM

Quote from: Dune on November 01, 2021, 02:24:04 AMI guess the terrain is too rough to begin with for snow. You may need to smooth the heightmap in PS, and make a combi in TG.

Hello Dune!
Can you explain the "Combine in TG" part? Not sure how you mean.

Dune · November 01, 2021, 09:12:27 AM

You can mask the slightly smoothed terrain tiff by the snowmask you have, and thus combine rough and smooth heightmaps in a merge shader, or (blue node) mix color/scalar and make that combination displace the ground. Then use the same mask to add a surface layer for snow, and if all works well it should only mask the smoothed areas.

pixelpusher636 · November 01, 2021, 10:02:44 AM

Quote from: Dune on November 01, 2021, 09:12:27 AMYou can mask the slightly smoothed terrain tiff by the snowmask you have, and thus combine rough and smooth heightmaps in a merge shader, or (blue node) mix color/scalar and make that combination displace the ground. Then use the same mask to add a surface layer for snow, and if all works well it should only mask the smoothed areas.

Interesting idea! I shall have a crack at this method! Thanks for the knowledge Dune!

WAS · November 01, 2021, 01:46:15 PM

You can also use Daniil's Thermal Erosion, the C formula with some smoothing. Least I think you can. Testing quickly now.

Kadri · November 01, 2021, 05:25:44 PM

Very nice work.
I like especially the first two images.

pixelpusher636 · November 01, 2021, 06:45:08 PM

Thanks @Kadri!

Yeah I think the pre eruption is going to have to go back on the shelf until I gain more knowledge with TG. here is as far as I made it and as you can see it's just not right.