The Leo demo showcases a real-time, DirectX 11 based lighting pipeline that is designed to allow for rendering scenes made of arbitrarily complex materials (including transparencies), multiple lighting models, and minimal restrictions on the number of lights that can be used -- all while supporting hardware MSAA and efficient memory usage.
Specifically, this demo uses DirectCompute to cull and manage lights in a scene. The end result is a per-pixel or per-tile list of lights that forward-render based shaders use for lighting each pixel. This technique also allows for adding one bounce global illumination effects by spawning virtual point light sources where light strikes a surface.
Finally, the lighting in this demo is physically based in that it is fully HDR and the material and reflection models take advantage of the ALU power of the AMD Radeon HD 7900 GPU to calculate physically accurate light and surface interactions (multiple BRDF equations, realistic use of index of refraction, absorption based on wavelength for metals, etc).
Sapphire AMD Radeon HD 7950 Card Leaks - 01/20/2012 01:48 PM
Sapphire, being one of AMD's partners on the video card market, is naturally preparing its own Radeon HD 7900 cards, one of which has become the subject of a recent information leak. Yet again, inform...
AMD Radeon HD 7950 released in two weeks - 01/17/2012 12:32 PM
AMD is planning to unveil its Radeon HD 7950 graphics card by the end of January, while NVIDIA is anticipated to introduce its 28nm Kepler GPU in April, at the latest. The sources noted that Nvidia w...