Screen Space Soft Shadows
| Autor: | Jesús Gumbau, Miguel Chover, Mateu Sbert |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Engineering
Computer science Plane (geometry) business.industry ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION init Geometry Screen space Rendering (computer graphics) Separable space Gaussian filter symbols.namesake Kernel (image processing) symbols Astrophysics::Solar and Stellar Astrophysics Computer vision Artificial intelligence business Shadow mapping ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | GPU Pro 360 ISBN: 9781351208352 GPU Pro |
| DOI: | 10.1201/9781351208352-4 |
| Popis: | This work presents a new technique for the real-time rendering of shadows with penumbrae based on shadow mapping. The method uses a screen-aligned texture that contains the distance between the shadow and its potential occluder. This information is used to set up the size of an anisotropic Gaussian filter kernel applied in screen space, which smoothens the standard shadows to create the penumbra. Given that a Gaussian filter is separable, the number of samples required to create the penumbra is much lower than in other soft shadowing approaches. In consequence, higher performance is obtained while also allowing perceptually correct penumbrae to be represented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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