Grab Passes are a really complicated and expensive way to do nothing in a shader. A Grab Pass is an ...
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unity-grabpass-performance
Feb 12, 2021 — Set the material of a Unity Canvas sprite renderer or NGUI UITexture to this ... The shader uses a grabpass which reads the render of the screen prior to this ... This is where you can make performance better on lower-end .... This has a great performance cost, especially if there are multiple water ... its implementation was inspired by the FXWaterPro-shader in Unity's standard assets. ... Distortion of pixels rendered under the water surface, using a GrabPass texture. 939c2ea5af