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Real-time shading with filtered importance sampling (2007)
| Content Provider | CiteSeerX |
|---|---|
| Author | Colbert, Mark |
| Description | image plane li 1/N p(x2) 1/N p(x3) 1/N p(x4) 1/N p(x5) 1/N p(x1) 1/N p(x6) f (a) (b) (c) (d) Figure 1: (a) Rendering using deterministic importance sampling without filtering produces aliasing in the estimate of the illumination integral, which translates into image artifacts. (b) Randomizing the directions for each image pixel trades alias for visible noise. (c) Our filtered importance sampling suppresses the alias at the cost of slightly blurred highlights. (d) Reference solution. Images (a), (b), and (c) are rendered with 40 importance samples per pixel. (e) Illustration of the size of the filter used on the environment map ℓi. 1 |
| File Format | |
| Language | English |
| Publisher Date | 2007-01-01 |
| Publisher Institution | In ACM SIGGRAPH 2007 Sketches, ACM |
| Access Restriction | Open |
| Subject Keyword | Image Pixel Trade Image Artifact Environment Map Deterministic Importance Visible Noise Importance Sample Reference Solution Image Plane Filtered Importance Sampling Illumination Integral |
| Content Type | Text |
| Resource Type | Article |
