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joewdavies / geoblender

Tutorials for making 3D-looking maps with Blender and QGIS
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Weird artifacts generated #7

Closed peterjeschke closed 2 years ago

peterjeschke commented 2 years ago

Hi, I hope it's okay to ask for help :D

I'm trying to create a map of the German state Thuriniga. I generated a DEM using official datasets and it looks pretty good:

thueringen2

However, in blender it generates weird artifacts on higher altitudes. It seems, the higher the altitude, the more spiky these artifacts get:

untitled

Notice how the lower left looks really weird.

I can't see this issue represented in the elevation map, so I assume this is a problem with my blender setup? The shader looks like the following:

grafik

(I'm using the transparency generated in the tif-file, so it looks a bit different than in the readme - removing the transparency part doesn't change anything, though)

I hope you can help me with my map 😀

peterjeschke commented 2 years ago

I solved this issue by increasing the "Dicing Scale"-Parameter of the subdivision modifier.