🔒 Locked

Loading height maps

Started by steg Jan 14, 2002 at 1:44 AM 1 replies 300+ views

Original Post

steg

149

steg

Jan 14, 2002 at 1:44 AM

Hi everyone, Three questions : 1. I was wondering which ways you use for loading in height map information. At the moment I just load in .raw files generated via paint shop pro7, this is simple as the file has no format. I guess another way would be to use D3DXLoadSurfaceFromFileA and lock the surface then do a memory copy - anyone use this method ? 2. I have a height map of 128x128, what size of texture is best to drape over all the quads in the terrain ? 3. At some point very soon I want to implement some LOD in my terrain engine, I have read about using binary triangle trees and quad trees but still can''t decide which way to go. Which methods have any of you used ? Many thanks, sTeVe

Anozireth

Jan 14, 2002 at 1:53 AM

Just today I was playing with height maps, right now I''ve got a routine that loads a 32 bit TGA and creates a texture from the color channels (discarding alpha for the texture), then uses the alpha channel to create the height map. However I think most of what you''re asking is beyond the level of what I''m doing right now.

steg

Author

149

steg

Jan 14, 2002 at 4:20 AM

I''ve only just started with doing my terrain engine thanks from the help I''ve had from guys off here. I just use a brute force method at the moment, I''m going to do some LOD implementations hopefully this week.

Anozireth - What technique are you using to load your tga file ?

Topic Locked

This topic has been locked by a moderator. New replies are not allowed.