Title
Toward practical real-time photon mapping: efficient GPU density estimation
Abstract
We describe the design space for real-time photon density estimation, the key step of rendering global illumination (GI) via photon mapping. We then detail and analyze efficient GPU implementations of four best-of-breed algorithms. All produce reasonable results on NVIDIA GeForce 670 at 1920 × 1080 for complex scenes with multiple-bounce diffuse effects, caustics, and glossy reflection in real-time. Across the designs we conclude that tiled, deferred photon gathering in a compute shader gives the best combination of performance and quality.
Year
DOI
Venue
2013
10.1145/2448196.2448207
I3D
Keywords
Field
DocType
design space,efficient gpu density estimation,complex scene,best-of-breed algorithm,photon mapping,deferred photon gathering,global illumination,real-time photon density estimation,practical real-time photon mapping,best combination,efficient gpu implementation,nvidia geforce,distribution
Density estimation,Computer vision,Photon,Computer graphics (images),CUDA,Computer science,Caustic (optics),Artificial intelligence,Global illumination,Photon mapping,Rendering (computer graphics),Shader
Conference
Citations 
PageRank 
References 
9
0.56
19
Authors
3
Name
Order
Citations
PageRank
Michael Mara1364.52
David Luebke22196140.84
Morgan Mcguire375254.30