An idea of modifying vertex height with shader vertex shader

         Sometimes I want to use some image information, gradient information or arrays Shader Vertex shader modifies vertex height , At this time, we will find a problem , Texture sampling cannot be used in vertex shaders , and ShaderGraph Of Gradient Property cannot be exposed Nor can you use code modification , and Shader perhaps ShaderGraph Nor can you use array attributes . At this time, the way to consider is to use C# Scripts let images, gradients, or arrays determine the vertex color of objects , And then in Shader perhaps ShaderGraph Vertex height is determined by vertex color .