I saw some geological maps recently showing the bedrock of greenland without the ice cap. Always wondered what it would look like naked as it were :)
Although I could not find any height maps showing just the rock elevation of just Greenland I was able to find a global one.
Added a little roughness on the coastline and some extra mountains and voila :)
Link to global heightmap
https://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/data/bedrock/grid_registered/georeferenced_tiff/
Cool idea and definitely interesting to see it this way.
- Oshyan
How to use this texture maps, please？
Cool Richard. Interesting to see the center has such huge depressions, probably caused by the weight of the ice. Really looks like it. I guess if it all melts, it'll rise (but how much?).
Quote from: gao_jian11 on November 11, 2017, 09:10:10 PM
How to use this texture maps, please？
The Heightmap is in the link and is simply spherically mapped through an image map shader. Because it's a Geotiff it displaces both positively and negatively so sea level stays at 0m. I displaced this by 198000 I think.
Quote from: Dune on November 12, 2017, 02:04:20 AM
Cool Richard. Interesting to see the center has such huge depressions, probably caused by the weight of the ice. Really looks like it. I guess if it all melts, it'll rise (but how much?).
Quite possibly. The lowest part of the depression is about -190m and the ice coverage reaches a max of around 3km so that's a hell of a lot of weight. Glacial Hydrostatic Rebound is the subject and it is being studied in Greenland presently. No real answers as yet. I remember from the Drain the Great Lakes project that the weight of ice over Canada was enough for the rivers to flow the opposite direction than they do now.
Beautiful, clean render. Congratulations cyphyr.
Yes, good clean rendering. Interesting what we can do with these maps, well done.
STORMLORD
Brilliant work, nice rendering. Has an impressive panoramic feel to it. The kind of data that's publicly available now is pretty amazing.
Does the data include Antarctica? Might be worthy of the same treatment.
I am looking for some high resolution Antartica height data. A similar situation with hidden islands, valleys and river systems. IIRC the Antartica data I last saw was quite patchy but it may have been worked on further by now.
Great idea, well executed.