   Gamedev Micro-contest: Guess the Heightmap Resolution
Guess the Heightmap ResolutionOk, I''m going to post a screenshot terrain engine, which I''m currently writing. At the moment, it''s lit, and shadowed, but there''s not LOD as such, so the resolution is fixed. The aim is to guess the resolution of the heightmap. The closest guesser wins a prize of their choosing*.  Here it is:*As long as they choose a virtual cookie   ____________________________________________________________www.elf-stone.com
  2 x 2   [edited by - xmcbainx on August 7, 2003 11:32:14 AM];  Not even close ;  32x16 ;  320x2401024x7681600x1200...   InitGames Softwarehttp://initgames.t35.com/;  256x256 T2k ;  134217728x134217728 ;  Bah, you people just don't know how to play Guess the Heightmap Resolution. You were supposed to suggest wildly high answers because of the apparent detail of the lighting. At which point I could point out that the resolution is only actually 33x33 and I'd cunningly rendered the original lightmap at 513x513, giving the appearance of more detail. But anyway, there it is. For Orangytang: edit: Twix, yes, that's the idea  [edited by - benjamin bunny on August 7, 2003 12:23:15 PM];  pi! x pi!No really, spill the beans - is that a texture for the lighting or actual tesselated geometry?Edit: w00t, thanks  Nice and detailed lighting, hows it calculated? Any chance of it being updated in realtime?   [edited by - OrangyTang on August 7, 2003 12:22:25 PM];  It''s generated by a simple terrain ray-tracing technique I found Here. I''ve optimised it up a lot from the implementation there, but it''s not quite realtime yet: the 512x512 map is updated in 0.6 seconds on my Athlon 2100+ (1.733GHz). A 256x256 map on a 257x257 heightmap updates in 0.18 seconds. In the final version I plan to update the map progressively over a number of frames, depending on the user''s processor speed. This is the wireframe of the original image.This is the original 513x513 heightmap which is used to render the lightmap.  