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AMD Radeon 7000 Leo Technology Demo

Diabolique

PCAXE OC team
Učlanjen(a)
01.04.2009.
Poruka
2.705
Rezultat reagovanja
1
Moja konfiguracija
CPU & cooler:
E5200
Motherboard:
P5Q
RAM:
2x2GB
VGA & cooler:
5770
Display:
DIY Projektor
HDD:
10001FALS, 10EACS, 10EADS
Case:
Generic
PSU:
CM 450 RP
Optical drives:
Pioneer 215D
Mice & keyboard:
MS Natural 4000, MX1100R
Internet:
IKOM 2Mb
OS & Browser:
Win XP
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).
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