Color From Normals

ColorFromNormals.shader

Shader "Custom/ColorFromNormals" {
	Properties {
		_Color ("Color", Color) = (1,1,1,1)
	}
	SubShader {
		Pass {
			CGPROGRAM
				#pragma vertex vert
				#pragma fragment frag
				// include file that contains UnityObjectToWorldNormal helper function
				#include "UnityCG.cginc"

				struct v2f {
						// we'll output world space normal as one of regular ("texcoord") interpolators
						half3 worldNormal : TEXCOORD0;
						float4 pos : SV_POSITION;
				};

				// vertex shader: takes object space normal as input too
				v2f vert (float4 vertex : POSITION, float3 normal : NORMAL)
				{
						v2f o;
						o.pos = UnityObjectToClipPos(vertex);
						// UnityCG.cginc file contains function to transform
						// normal from object to world space, use that
						o.worldNormal = UnityObjectToWorldNormal(normal);
						return o;
				}

				fixed4 _Color;
				
				fixed4 frag (v2f i) : SV_Target
				{
						fixed4 c = 0;
						// normal is a 3D vector with xyz components; in -1..1
						// range. To display it as color, bring the range into 0..1
						// and put into red, green, blue components
						c.rgb = _Color * i.worldNormal*0.5+0.5;
						return c;
				}
			ENDCG
		}
	}
	FallBack "Diffuse"
}

ColorNormalsShaderScript.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ColorNormalsShaderScript : ShaderBaseScript {

	void Update()
	{	
		mat.SetColor("_Color", Color.white * new Vector4(
			0.5f * Mathf.Sin(Time.timeSinceLevelLoad) + 0.5f,
			0.5f * -Mathf.Sin(Time.timeSinceLevelLoad) + 0.5f,
			0.5f * Mathf.Cos(Time.timeSinceLevelLoad) + 0.5f,
			1)
		);
	}

}