Unity3d Tutorial Shader Chapter: The second fixed Function Shader

original articles should be reproduced please specify: Reproduced from the Wind Yu Chong Unity3d Tutorial College

Fixed function Shader Introduction: Belongs to the stationary rendering pipeline Shader, which is basically used for advanced Shader when the old video card cannot be displayed. Using the Shaderlab language, the syntax is similar to Microsoft's FX files or Nvidia's CGFX.

Example one: show a single color
Let's take a look at the first example, show a single color, the comments are written in detail, according to the format can be written.

Root Shadershader "Custom/1_1color" {   //attribute Properties    {        //define a color        _color ("Main color", color) = (1,.5,. 5,1)    }    //child shader    Subshader {        Pass {            Material {                ///Display the color                diffuse [_color]            }            //Turn on the light switch, i.e. accept the light            Lighting on        }}}    

　　

Example two: displaying a decal

Shader "Custom/1_2show1texture" {    Properties {        _maintex ("Base (RGB)", 2D) = "White" {}        _color ("Main Color", Color) = (1,1,1,1)    }    subshader {        Pass        {            Material            {                diffuse[_color]            }            Lighting on            Settexture[_maintex]            {                //combine color section, Alpha part                //      material * Vertex color                Combine Texture * Primary,texture * constant            }}}    

　　

Example three: overlay of two posting graphs

Shader "Custom/1_3merge2texture" {    Properties {        _maintex ("Base (RGB)", 2D) = "White" {}        _maintex2 ("Tex2 (RG B) ", 2D) =" White "{}        _color (" Main Color ", color) = (1,1,1,1)    }    subshader {        Pass        {            Material            {                diffuse[_color]            }            Lighting on            Settexture[_maintex]            {                //      First material * Vertex color                Combine Texture * Primary            }            SETTEXTURE[_MAINTEX2]            {                //      second material * Accumulated before (this is the first material)                Combine texture * Previous            }        }    }}

　　

Unity3d Tutorial Shader Chapter: The second fixed Function Shader