Summary of introduction to unityshader (2): Beginner Level

violet : General concepts or brief and powerful summaries

Blue : Subdivide concepts or important parts

Red : Important supplementary notes

The fifth chapter ： know UnityShader

Start with the simplest shader structure

A basic code that contains vertex shaders and slice shaders  

#pragma Defines the shader type

vertex For the top ,fragment Is a piece element (shader It uses CG grammar )

Among them Fixed4,float4 What does waiting mean ?

Look at an advanced version of the code that links vertex and fragment shaders

 

If you think it's more winding . You can temporarily treat the colon as " From " understand

float4 vertex : POSITION

Like creating a float4 Variable vertex, It comes from POSITION( Model space vertex coordinates ) 

This time, vert Returned a v2f Structure rather than float4 了 . And finally frag Also successfully quoted v2f Finish coloring

（vertex.normal It's normal ）

Call the property

Attributes are variables that can be changed in the editor interface . Use Properties

  Reference directly in the shader

 

such , A color can be adjusted at any time shader Just do it