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Date added 02/02/2012 AMD Radeon™ HD 7900 Series Graphics Real-Time 'Leo' Demo v1.0
Summary AMD Radeon™ HD 7900 Series Graphics Real-Time 'Leo' Demo v1.0
Filename AMD-Demo-Leo-v1.0.msi
Size 732.59 MB
Downloads 49
Last downloaded 18 days ago
MD5 dd3dfb933cd3746b1d34f80bc22bfed6
SHA1 9b1c8f53e398b2812332d826b26eaa452a5e353b 1 Vote/s
Website http://developer.amd.com/samples/demos/pages/AMDRadeonHD7900SeriesGraphicsReal-TimeDemos.aspx
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Description
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).

* This demo requires Windows Vista® or above operating system, latest AMD Catalyst™ software, a dual- or quad-core CPU, and 4GB of RAM. Runs best on an AMD Radeon HD 7900 Series graphics processor. Compatible with any DirectX 11 capable graphics processor from AMD.
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