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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Wyman, Chris; Hansen, Charles D. | Penumbra maps | Generating soft shadows quickly is difficult. Few techniques have enough flexibility to interactively render soft shadows in scenes with arbitrarily complex occluders and receivers. This paper introduces the penumbra map, which extends current shadow map techniques to interactively approximate so... | Penumbra maps; Soft shadows; Shadow maps | 2003-04-23 |
| 2 |
 | Shirley, Peter S.; Parker, Steven G. | Single sample soft shadows | A simple extension to ray tracing is presented that creates visually plausible "soft" shadows with little extra computation. Although these soft shadows are approximate, they are robust and have penumbra widths that behave in a believable way, including accurate placement of singularities where penu... | Soft shadows; Ray tracing; Penumbra width; Image generation | 1998 |
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