https://github.com/joshb/jabheightmap

A small OpenGL demo featuring a world created with a PNG heightmap.
https://github.com/joshb/jabheightmap

Last synced: about 2 months ago
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A small OpenGL demo featuring a world created with a PNG heightmap.

• Host: GitHub
• URL: https://github.com/joshb/jabheightmap
• Owner: joshb
• Created: 2012-08-11T18:34:49.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2015-07-04T19:21:13.000Z (over 9 years ago)
• Last Synced: 2023-04-15T11:17:50.307Z (over 1 year ago)
• Language: C
• Size: 180 KB
• Stars: 5
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README

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README

        
jabheightmap 0.1 (January 27, 2003)

This program features a small OpenGL world created with

a PNG heightmap. It puts all of the quads of the map into

an octree, which is used to cull quads that definitely aren't

in the view frustum.

It requires OpenGL (of course), X11/GLX, and libpng.

To build it, run 'make' in the jabheightmap-0.1 directory

(you may need to edit the Makefile appropriately for your

system first); a binary called 'main' will be created, which

you can then execute. Use the mouse to look around and use the

arrow keys to move. Pressing the w key will toggle wireframe

mode, s will dump a raw RGBA screenshot to a file named

screen.raw, and escape will quit.

I doubt I'll ever do anything more with this, so I'm

releasing it in case anyone else finds the code helpful.

The code is covered by a BSD-style license (see map.h

or any other source file for the exact terms). The PNG

images are public domain.

Josh Beam 

http://joshbeam.com/