In this project, I built a sandbox shader development framework using OpenSceneGraph. It combines two technical features: Portal 2 water effect introduced by Alex Vlachos and the derivative map introduced by Mikkelsen. In this demo, I loaded a cone object in the testing framework. The vertex shader only provides vertex positions.
Please visit my website for more information: yuwang-cg.com/project/portal-2-water-effect-with-derivative-map/
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