I’m trying to use a 2000x2000 pixel height map in Blender. The way I did it was to make a plane with 2000 subdivisions, this took some minutes to generate. Then I added the height map as a displacement texture. It seems to work, but it has become quite slow and rendering also takes quite some time and memory. Is there a more efficient way to use height maps? I’m asking this because I did the same thing in Bryce with the terrain editor and the image took only seconds to load and render using a fraction of the memory Blender used.
I see that Bryce uses ~8.4 million polygons to display it, whereas I used 4 million vertices to display it in Blender.