$page_title="TinyPlanet";
  include( "header.php");
?>
	
 Tiny Planet Viewer 
Description
Tiny Planet Viewer is a real-time OpenGL viewer of detailled earth texture
such as BlueMarble from 
 Earth 
Observatory (NASA)  or any other planet texture.
Vectorial data such as points of interest, boundaries, rivers can be
superimposed to the texture.
 
	
In order to avoid dealing with one extra large texture at rendering time, the
extra large texture is processed ( in a preprocess stage) to make a quadtree 
( pyramids of mipmaps).
At rendering time, taking care of camera position, the earth is subdivied in
quads of aproximately equal surface and only the needed textures at the needed
level of detail are loaded then rendered.
 
	
The planet is tesselated along a Cube to Sphere projection, more details in
doc/ are coming soon.
 
	
 Features 
 -  Render day textures with lod 
 
 -  Render vectorial data ( points of interest, boundaries, rivers..) with lod 
 
 
 Availability 
 -   Software : 
     Tiny Planet Viewer should run on any Operating system supported by SDL
     and running OpenGL >= 1.4. This is to say Linux, FreeBSD, OpenBSD, 
     Windows, MacOS Classic, MacOS X, Solaris, IRIX and QNX.
 
	
  
 -   Hardware : 
     To be fully usable, Tiny Planet Viewer need hardware accelerated OpenGL
     1.4 ( texture compression, vertex array buffer... ) 
     Any ATI Radeon based grpahic card or any NVidia TNT2 or Geforce based
     graphic card should make Tiny Planet Viewer runnning fine.
    
  
		
 Dependencies 
 Downloads 
	
	
 include( "footer.php"); ?>