Practical Real‐Time Lens‐Flare Rendering
Practical Real‐Time Lens‐Flare Rendering
复制标题
实用的实时镜头光晕渲染
DOI:
10.1111/cgf.12145
复制
发表时间:
2013
影响因子:
2.5
通讯作者:
E. Eisemann
中科院分区:
文献类型:
--
作者:
Sungkil Lee;E. Eisemann
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.