Ray Tracing & Photon Mapping (Unity3D C#)

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本文介绍了在Unity3D中使用C#实现光线追踪与光子映射的内容。将Java/Processing的光线追踪代码进行转换，当前版本已能正常工作，但缺少用户交互且速度较慢。给出了不同分辨率的渲染时间，还提及一个有趣项目但无源码可下载，最后提供了Webplayer和源码下载链接。

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https://unitycoder.com/blog/2012/01/24/ray-tracing-photon-mapping-render-unity3d-c/

Demos // Unity3d

Ray Tracing & Photon Mapping (Unity3D C#)

Author An article by mgear 6 Comments

Converting some ray tracing code from java/processing (original source by Grant Schindler/2007)

1st version works fine already, just missing the user interactions.. (and its quite slow at the moment)

Current progress: v1.0
– 512×512 render: time 23.65258s (got it down to 16.54801s, if disable preview while rendering..)
– 128×128 render: 1.34s
– Didnt manage to make it faster with small changes, giving up for now.
– Its quite fast in low resolution..
– Here is more interesting project, too bad no sources to download? http://forum.unity3d.com/threads/27612-Real-time-global-illumination

Webplayer:
http://unitycoder.com/upload/demos/mRayTracingPhotons1/

Download source: (C#)
RayTracePhoton.unity

Tags: 3D, ambient occlusion, photon, ray tracing, reflections, render, shadows