Quick shader with animatable emission color based on a specific texture (red = mask, green = animation)

pillar_shader.shader

Shader "Custom/pillar_shader"
{
	Properties
	{
		_Color ("Color", Color) = (1,1,1,1)
		_MainTex ("Albedo (RGB)", 2D) = "white" {}
		_Glossiness ("Smoothness", Range(0,1)) = 0.5
		_Metallic ("Metallic", Range(0,1)) = 0.0
		[Space]
		_EmissionTex ("Emission", 2D) = "white" {}
		[HDR] _EmissionColor ("Emission Color", Color) = (1,1,1,0)
		[Space]
		_Anim ("Animation", Float) = 0
		_Smooth ("Smoothing", Float) = 1
	}
	SubShader
	{
		Tags { "RenderType"="Opaque" }
		
		CGPROGRAM
		#pragma surface surf Standard fullforwardshadows nometa nolightmap
		#pragma target 3.0

		sampler2D _MainTex;
		sampler2D _EmissionTex;
		float4 _EmissionColor;

		struct Input
		{
			float2 uv_MainTex;
			float2 uv_EmissionTex;
		};

		half _Glossiness;
		half _Metallic;
		fixed4 _Color;
		float _Anim;
		float _Smooth;

		void surf (Input IN, inout SurfaceOutputStandard o)
		{
			fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
			o.Albedo = c.rgb;
			o.Metallic = _Metallic;
			o.Smoothness = _Glossiness;
			o.Alpha = c.a;

			half4 emissionTex = tex2D(_EmissionTex, IN.uv_EmissionTex);
			half3 emission = emissionTex.r * _EmissionColor.rgb * saturate(-emissionTex.g*_Smooth + _Anim*_Smooth);
			o.Emission = emission.rgb * _EmissionColor.rgb;
		}
		ENDCG
	}
	FallBack "Diffuse"
}