I am facing a problem to 
make this DEM 3D problem in qgis2threejs plugin scene. Does anyone have solution on it?
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3Can you post some more information? Like a print screen of the settings you used? Also, it would be good if you could share your data, or a small sample. It's very difficult to help you with so little information.– NikosNov 27, 2022 at 14:04
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1It looks like your X/Y and Z units are different. Vertical exaggeration of 1.0e-5 might help.– VinceNov 27, 2022 at 14:49
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@Nikos plz let me know what kind of data you need.– Abdullah MaroofNov 28, 2022 at 8:51
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@Vince if i keep my vertical exaggeration 0.0 then it's work ok,but when i make it 0.1 or any other value it's become like that.– Abdullah MaroofNov 28, 2022 at 8:53
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@AbdullahMaroof as I said, I just used a DEM (CRS in meters) and the rest are shown in my answer.– NikosNov 28, 2022 at 12:33
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3 Answers
qgis3threejs treats the canvas outside the DEM as having elevation 0. If your DEM is well above sea-level, you get the effect you're seeing. Look at this issue on the qgis2threejs repository for hints on how to solve your problem.
When using the New 3D Map View in QGIS 3.22.12 I had no issue making the DEM looking 3D. DEM's CRS was in meters and the settings I used are showing below:
You can access the 3D Map View by selecting View -> New 3D Map View
My study area is well above the sea surface but I didn't have issues with the visualization.
As I assume, the CRS which set for the map of your QGIS-project itself is WGS 84 EPSG:4326 (Decimal Degrees).
Change it to metric CRS, for example, to WGS 84 / Pseudo-Mercator (EPSG:3857) or WGS 84 /UTM with the zone corresponding to the location of your area.
answered Nov 28, 2022 at 16:18
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sorry for being late response , i had solved the problem and yes it was about CRS Mar 13 at 4:09
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Web Mercator is absolutely awful for the XY with Z, since both the X and Y distances are variable.– VinceMar 13 at 5:10