论文标题
RTSDF：实时生成签名的距离字段以进行柔软的阴影渲染
RTSDF: Generating Signed Distance Fields in Real Time for Soft Shadow Rendering
论文作者
论文摘要
用于表面表示的签名距离字段（SDF）通常是离线生成的，随后将其加载到游戏之类的交互式应用程序中。由于它们没有更新每个帧，因此它们仅提供刚性的表面表示。尽管有一些方法可以在GPU上快速生成它们，但在高分辨率下，这些方法的效率受到限制。本文展示了一种新颖的技术，该技术结合了跳跃洪水和射线追踪，以实时生成近似的SDF，以实现柔和的阴影近似，在保持交互式框架速率的同时，实现了突出的阴影阴影。
Signed Distance Fields (SDFs) for surface representation are commonly generated offline and subsequently loaded into interactive applications like games. Since they are not updated every frame, they only provide a rigid surface representation. While there are methods to generate them quickly on GPU, the efficiency of these approaches is limited at high resolutions. This paper showcases a novel technique that combines jump flooding and ray tracing to generate approximate SDFs in real-time for soft shadow approximation, achieving prominent shadow penumbras while maintaining interactive frame rates.
