Real-time Shading with Filtered Importance Sampling (sap...
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Real-time Shading with Filtered Importance Sampling (sap 0073) Supplemental Materials Mark Colbert * University of Central Florida Jaroslav Kˇ riv´ anek † Czech Technical University in Prague (a) (b) Figure 1: Buddha lit by the Grace Cathedral (a) and Kitchen (b) light probe with a spatially varying Lafortune BRDF, where the head is glossy and the remainder of the body is more diffuse. (a) (b) Figure 2: Our interface for designing spatially varying BRDF used to test the filtered importance sampling. (a) and (b) demonstrate the before and after of a BRDF painting operation, where the user defines the BRDF using the parameters of the Lafortune model. * [email protected] † [email protected] (a) (b) Figure 3: Our rendering algorithm with the Ward BRDF model for three spheres (a) and the Athena model (b) where the anisotropic parameters, α x and α y , are respectively 0.048 and 0.013 for the top sphere and Athena model. The isotropic parameter, α xy , is 0.007 for the glossy middle sphere, and 0.168 for the more diffuse bottom sphere. Each object also has a diffuse albedo of 0.1. 5 10 15 20 25 30 35 40 0 200 400 600 800 1000 Samples FPS 6800GT 7900GT 7950GT 7800 GTX SLI Figure 4: Plot of the performance with respect to the number of frame per second for a given number of samples when rendering a sphere at a resolution of 512x512. The max of 40 samples is used due to hardware limitations.
Transcript of Real-time Shading with Filtered Importance Sampling (sap...
Real-time Shading with Filtered Importance Sampling (sap 0073)Supplemental Materials
Mark Colbert∗
University of Central FloridaJaroslav Krivanek†
Czech Technical University in Prague
(a) (b)
Figure 1: Buddha lit by the Grace Cathedral (a) and Kitchen (b)light probe with a spatially varying Lafortune BRDF, where thehead is glossy and the remainder of the body is more diffuse.
(a) (b)Figure 2: Our interface for designing spatially varying BRDF usedto test the filtered importance sampling. (a) and (b) demonstratethe before and after of a BRDF painting operation, where the userdefines the BRDF using the parameters of the Lafortune model.
∗[email protected]†[email protected]
(a) (b)
Figure 3: Our rendering algorithm with the Ward BRDF model forthree spheres (a) and the Athena model (b) where the anisotropicparameters, αx and αy, are respectively 0.048 and 0.013 for the topsphere and Athena model. The isotropic parameter, αxy, is 0.007for the glossy middle sphere, and 0.168 for the more diffuse bottomsphere. Each object also has a diffuse albedo of 0.1.
5 10 15 20 25 30 35 400
200
400
600
800
1000
Samples
FPS
6800GT7900GT7950GT7800 GTX SLI
Figure 4: Plot of the performance with respect to the number offrame per second for a given number of samples when rendering asphere at a resolution of 512x512. The max of 40 samples is useddue to hardware limitations.
