Shaded relief with BlenderGIS, part 2

With the DEM read in, we’re now ready to adjust the many parameters in Blender which determine what we’ll get. Here again is the overall procedure (mentioned in the previous post) . We’re now at step 5. Select the Cycles Renderer Read in the DEM as DEM Create new material Adjust Z scaling Create andContinue reading “Shaded relief with BlenderGIS, part 2”

Shaded relief with BlenderGIS, part 1

Note: This tutorial has now been superseded by a new one which uses Blender 2.8. [The BlenderGIS add-on has now been improved to the point where generating shaded relief is downright easy. So, I have updated this post (April 2017) to reflect how one uses its latest version. Also the latest version of Blender (2.78c).Continue reading “Shaded relief with BlenderGIS, part 1”

Cutting large DEMs into square, partially overlapping tiles

I’ve been doing a lot of shaded relief using Blender, and one practice I’ve developed is feeding Blender square DEM tiles. The DEMs I use in maps tend to be too big for my installation of Blender to handle. One I had recently was 6348 x 10899 pixels; another was 4155 x 3572.  So that’sContinue reading “Cutting large DEMs into square, partially overlapping tiles”

Moving Mountains

I’ve been reading Gottfried Merzbacher’s Central Tian Shan which was published in 1905. (Archive.org has a free copy here.) This German geologist spent 1902-3 in the Tian Shan exploring valleys, noting strike and dip, and, among other things, trying to figure out the actual location of the peak Khan Tengri. This 7000m peak was notContinue reading “Moving Mountains”