Rastergrid has a new OpenGL 4.0 demo released that shows dynamically generated mountains, valleys, and trees all using algorithms in DirectX10 and OpenGL4. They manage to do level of detail, culling, and and geometry instancing all on the GPU, leaving the CPU almost untouched.
The result is a renderer that does little to no scene management on the CPU, instead uses the GPU for visibility determination that is, in most cases, able to reduce the scene’s geometric complexity from over 400 million triangles under one million triangles providing an interactive experience on a Radeon HD5770 with around 200 frames per second.
Scroll to the bottom to see his performance figures. It looks amazing, although they test it solely on AMD Radeon cards.
