A cheatsheet and or boilerplate for CG / shaderlab in Unity

cheatsheet.shader

Shader "Unlit/ScreenFade"
{
	Properties
	{
	    //https://docs.unity3d.com/Manual/SL-Properties.html
	    //[HideInInspector]
	    //[NoScaleOffset]
	    //[Normal]
	    //[HDR]
	    //[Gamma]
	    //[PerRendererData]
	    
	    //name ("display name", Range (min, max)) = number
            //name ("display name", Float) = number
            //name ("display name", Int) = number
            //name ("display name", Color) = (number,number,number,number)
            //name ("display name", Vector) = (number,number,number,number)
        
            //name ("display name", 2D) = "defaulttexture" {}
            //name ("display name", Cube) = "defaulttexture" {}
            //name ("display name", 3D) = "defaulttexture" {}
        
	    _MainTex ("Texture", 2D) = "white" {}
	}
	SubShader
	{
	        //https://docs.unity3d.com/Manual/SL-SubShaderTags.html
	        //Tags{ "RenderType"="" "DisableBatching"="" "ForceNoShadowCasting"="" "IgnoreProjector"="" "CanUseSpriteAtlas"="" "PreviewType"="" }
		Tags { "RenderType"="Transparent" "Queue"="Transparent" "ForceNoShadowCasting"="true"}
		LOD 100

		Pass
		{
		    //https://docs.unity3d.com/Manual/SL-SubShaderTags.html
		    //Cull Back | Front | Off
		    //ZTest (Less | Greater | LEqual | GEqual | Equal | NotEqual | Always)
		    //ZWrite On | Off
		    //Offset OffsetFactor, OffsetUnits
		    //Blend sourceBlendMode destBlendMode
                    //Blend sourceBlendMode destBlendMode, alphaSourceBlendMode alphaDestBlendMode
                    //BlendOp colorOp
                    //BlendOp colorOp, alphaOp
                    //AlphaToMask On | Off
                    //ColorMask RGB | A | 0 | any combination of R, G, B, A
		    ZWrite Off
		    
		    //https://docs.unity3d.com/Manual/SL-PassTags.html
		    //Tags{ Lightmode="" }
		    Tags {Lightmode="Always"}
		    
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			// make fog work
			//#pragma multi_compile_fog
			
			#include "UnityCG.cginc"
                        //CG keywords
                        //http://developer.download.nvidia.com/CgTutorial/cg_tutorial_appendix_d.html
                        //CG library functions:
                        //http://developer.download.nvidia.com/CgTutorial/cg_tutorial_appendix_e.html
			struct appdata
			{
				float4 vertex : POSITION;
				float2 uv : TEXCOORD0;
			};

			struct v2f
			{
				float2 uv : TEXCOORD0;
				//UNITY_FOG_COORDS(1)
				float4 vertex : SV_POSITION;
			};

			sampler2D _MainTex;
			float4 _MainTex_ST;
			
			v2f vert (appdata v)
			{
				v2f o;
				o.vertex = UnityObjectToClipPos(v.vertex);
				o.uv = TRANSFORM_TEX(v.uv, _MainTex);
				//UNITY_TRANSFER_FOG(o,o.vertex);
				return o;
			}
			
			fixed4 frag (v2f i) : SV_Target
			{
				// sample the texture
				fixed4 col = tex2D(_MainTex, i.uv);
				// apply fog
				//UNITY_APPLY_FOG(i.fogCoord, col);
				return col;
			}
			ENDCG
		}
	}
}