有没有人可以教我编写着色器呀

Question

有没有人可以教我编写着色器呀
零基础，不会c.不会glsl，但又想自己制作属于自己的光影

Answer 1

Shader "Custom/ShadowShader" {
    Properties {
        _MainTex ("Texture", 2D) = "white" {}
        _ShadowColor ("Shadow Color", Color) = (0, 0, 0, 1)
        _ShadowStrength ("Shadow Strength", Range(0, 1)) = 0.5
    }
    
    SubShader {
        Tags { "RenderType"="Opaque" }
        LOD 200
        
        CGPROGRAM
        #pragma surface surf Lambert
        
        sampler2D _MainTex;
        fixed4 _ShadowColor;
        float _ShadowStrength;
        
        struct Input {
            float2 uv_MainTex;
        };
        
        void surf (Input IN, inout SurfaceOutput o) {
            fixed4 c = tex2D(_MainTex, IN.uv_MainTex);
            fixed4 shadow = _ShadowColor * _ShadowStrength;
            o.Albedo = c.rgb - shadow.rgb;
            o.Alpha = c.a;
        }
        ENDCG
    }
    
    FallBack "Diffuse"
}