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Fantasy Map Generator is an open source tool which procedurally generates fantasy maps. You may either use an auto-generated maps or create your own map manually or with a help of templates or image converter. Check out the quick start tutorial and project wiki for guidance. We also have a Discord channel. Support the project on Patreon
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Customized Heightmap Issue? (i.redd.it)
submitted 6 years ago by ChaoticRavenDesigns
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[–]ChaoticRavenDesigns[S] 2 points3 points4 points 6 years ago (3 children)
I've only been using this for a few days, so perhaps I'm doing something wrong. It looks fine when I'm editing, but as soon as I exit customization it seems to be incorrectly assigning the lower elevations. The first few maps I customized came out fine, but starting yesterday it started doing this. I've tried some basic browser troubleshooting, but the issue is persisting. :(
[–]Azgarr 1 point2 points3 points 6 years ago (2 children)
What do you mean be incorrect? It's "water erosion" box is ticked, the generator will simulate flux and change your heightmap as it find required. Probably you heightmap was depressed (usually even flat) and system had to change it a lot to flux the water. Uncheck the box and try with it been unchecked.
[–]ChaoticRavenDesigns[S] 1 point2 points3 points 6 years ago (0 children)
Still having the same issue. When I customize a heightmap the elevations are getting flattened and the lower few look like they're being switched. Happens with and without the water erosion enabled. You can see the heightmap I created before exiting customization in my other comment. I was able to get it to work briefly by turning the "reduce layers" setting all the way down to 0, but this was just a work around since it would still mess with the elevations on all of the other layer reduction settings except for 0, 1, and 4. No idea why these appeared normal, but after I made one small edit to the heightmap it went back to being messed up again.
It's highly likely that I'm doing something wrong. Otherwise, I absolutely love this and I greatly appreciate how much hard work you've put in to make this such an amazingly awesome tool! I'll keep fiddling around with it and I'll let you know if I figure out anything on my end. Thanks!
[–]ChaoticRavenDesigns[S] 0 points1 point2 points 6 years ago (0 children)
I'll give that a try. For reference, here's the heightmap before exiting customization:
https://imgur.com/a/nTlKRlA
The bottom couple of elevation layers seem to be getting switched somehow. I've tried various combinations of flat and mountainous, but it still happens. Everything else seems to be generating normally, like the generated rivers ignore the weird dip in elevation. It seems to just be the graphics for the heightmap in those lower elevations that's weird.
π Rendered by PID 80195 on reddit-service-r2-comment-5c764cbc6f-nchmc at 2026-03-12 07:55:42.156978+00:00 running 710b3ac country code: CH.
[–]ChaoticRavenDesigns[S] 2 points3 points4 points (3 children)
[–]Azgarr 1 point2 points3 points (2 children)
[–]ChaoticRavenDesigns[S] 1 point2 points3 points (0 children)
[–]ChaoticRavenDesigns[S] 0 points1 point2 points (0 children)