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Installation

Use UPM to install the package via the following git URL: https://github.com/Elringus/GrassBending.git#package or download and import GrassBending.unitypackage manually.

Description

The package contains a shader used for billboarded terrain details with waving and bending support and components to provide the required bend data to the shader.

How to use

Paint grass on the terrain. Make sure the grass is billboarded (it will use a default shader otherwise).

Add a BendGrassWhenEnabled or BendGrassWhenVisible component to a gameobject that should apply the bend effect when positioned over the grass.

BendRadius controls the radius of the bending sphere with center being the pivot of the gameobject.

Priority is used to control the bending source priority; when concurrent bend sources limit is exceeded, benders with lower priority values will be served first.

You can also add your own implementation of the IGrassBender interface instead of using the built-in bender components.

The bending grass shader replaces Unity's default Hidden/TerrainEngine/Details/BillboardWavingDoublePass shader used for the terrain grass when Billboard option is enabled. It additionally allows to control the wind waving and bending power via the healthy/dry color tint alpha; when alpha of the both colors is zero, the wind and bending won't affect the grass at all.

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A replacement for Unity's terrain grass shader with alpha blended rendering and touch bending effect

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