Generating Ray-Traced Caustic Effects in Unreal Engine 4, Part 1 – NVIDIA Technical Blog News and tutorials for developers, data scientists, and IT admins 2025-03-26T22:01:23Z http://www.open-lab.net/blog/feed/ Yaobin Ouyang <![CDATA[Generating Ray-Traced Caustic Effects in Unreal Engine 4, Part 1]]> http://www.open-lab.net/blog/?p=22678 2023-10-25T23:53:12Z 2020-12-08T19:38:03Z Caustics are common optical phenomenon in the real world. From the sloshing sparkles by water surfaces to the curved highlights in the backlight of clear glass,...]]> Caustics are common optical phenomenon in the real world. From the sloshing sparkles by water surfaces to the curved highlights in the backlight of clear glass,...

Caustics are common optical phenomenon in the real world. From the sloshing sparkles by water surfaces to the curved highlights in the backlight of clear glass, they are everywhere. However, simulating accurate caustic in 3D graphics is not an easy job. For those who have been involved in creating ray tracers, you might know that the difficulty is twofold: following light rays bounced off high��

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