Practical Real‐Time Lens‐Flare Rendering |
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Authors: | Sungkil Lee Elmar Eisemann |
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Affiliation: | 1. Sungkyunkwan University, South Korea;2. Delft University of Technology, Netherlands |
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Abstract: | We present a practical real‐time approach for rendering lens‐flare effects. While previous work employed costly ray tracing or complex polynomial expressions, we present a coarser, but also significantly faster solution. Our method is based on a first‐order approximation of the ray transfer in an optical system, which allows us to derive a matrix that maps lens flare‐producing light rays directly to the sensor. The resulting approach is easy to implement and produces physically‐plausible images at high framerates on standard off‐the‐shelf graphics hardware. |
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Keywords: | I 3 3 [Computer Graphics]: Picture/Image Generation— Display algorithms |
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