Unity 2018 Shaders and Effects Cookbook - Third Edition

How to do it...

This effect works in two steps: a vertex function to change the geometry, and a surface function to give it the right color. The steps are as follows:

1. Remove the current properties and add the following properties to the shader:

Properties {  _RampTex("Color Ramp", 2D) = "white" {}  _RampOffset("Ramp offset", Range(-0.5,0.5))= 0      _NoiseTex("Noise Texture", 2D) = "gray" {}  _Period("Period", Range(0,1)) = 0.5      _Amount("_Amount", Range(0, 1.0)) = 0.1  _ClipRange("ClipRange", Range(0,1)) = 1}

2. Add their relative variables so that the Cg code of the shader can actually access them:

sampler2D _RampTex;half _RampOffset;sampler2D _NoiseTex;float _Period;half _Amount;half _ClipRange;

3. Change the Input structure so that it receives ...