evershade/Assets/Shaders/NoiseImageShader.shader

Shader "Custom/NoiseShader"
{
    Properties
    {
        _MainTex ("Texture", 2D) = "white" {}
        _NoiseScale ("Noise Scale", Range(1, 100)) = 10
    }
    SubShader
    {
        Tags
        {
            "RenderType"="Opaque"
        }
        LOD 200

        CGPROGRAM
        #pragma surface surf Standard fullforwardshadows

        sampler2D _MainTex;
        half _NoiseScale;

        struct Input
        {
            float2 uv_MainTex;
        };

        void surf(Input IN, inout SurfaceOutputStandard o)
        {
            // Base color from the main texture
            half4 c = tex2D(_MainTex, IN.uv_MainTex);

            // Generate noise
            float noise = frac(sin(dot(IN.uv_MainTex * _NoiseScale, float2(12.9898, 78.233))) * 43758.5453);

            // Apply noise to the color
            c.rgb += noise * 0.1; // Adjust noise intensity here

            o.Albedo = c.rgb;
            o.Alpha = c.a;
        }
        ENDCG
    }
    FallBack "Diffuse"
}