gedimaster
17-10-2005 02:50:30
the grandcanyon heightmap was created from a 4097x2049 image.
1. what is the grid size used to create the terrain mesh? is it a default 1-to-1 point such that the mesh is triangulated based on 4097x2049 grid points?
2. how can i increase the mesh resolution if i want smoother terrain? the terrain looks "perky" and rough in many areas...
tuan kuranes
17-10-2005 09:33:13
1. 1-to-1
2. use 16 bit terrain. if it's not enough, apply filters on terrain, like erosion.
gedimaster
17-10-2005 10:37:03
to increase horizontal resolution, is it possible tesselate the terrain (with plsm2)?
tuan kuranes
17-10-2005 10:39:37
not more than the heightmap resolution.
gedimaster
17-10-2005 11:11:19
is that done offline through mapsplitter parameter or some plsm2 function call?
tuan kuranes
17-10-2005 17:13:01
plsm2 does not add detail, but Level Of Detail mechanism decide which "resolution" to display.
it uses distance to camera, terrain roughness and maxPixelError config values to determine LOD
Falagard
17-10-2005 18:05:29
It provides a 1 to 1 but you can of course change the units to whatever you want.
For example, my terrain is at a 2m per vertex resolution, so there is terrain vertex every 2 meters, whereas the grand canyon or puget sound data is at a much higher scale (lower resolution). If I were to use the grand canyon data I'd take their heightmaps and scale them to my desired resolution (outside of plm2 in something like photoshop) and add more artificial details to the terrain.