Okay, so the good news is that you likely don’t even have to normalize the GeoTIFF. On my end, just exporting it from QGIS works where the file as downloaded did not.
Steps to reproduce:
In QGIS 3.40.14-Bratislava:
- Layer → Add Layer → Add Raster Layer
- Select your file in the dialog box, click add, close out of the box
- In the Layers panel, right click the layer, select Export → Save As
- In the dialog box that pops up, at the very top, select
Rendered imagefor the Output mode (this is a crucial step, the raw data is likely the reason it’s not displaying correctly in WM) - Select where to save the exported file
- All other options can be left at defaults
- Optionally deselect the “Add saved file to map” option
- Press OK
The resulting exported file (which, on my machine, took just under a minute to save out, and resulted in a 1.71GB file) should load into World Machine. No fiddling around with the ranges required.
I can dive deeper if more details are needed (QGIS is something I got very familiar with during my Hyrule Shaded Relief Map project, since the heightmap I could find was very low res, and QGIS offered a path to significantly increasing the resolution without introducing artifacting), but if your primary goal is just to get the output working, this should cover you!