Moving Toon Water Waves

Unity Engine
1

I’ve been trying to create my own toon water shader for the past couple of days and I’m almost done. The only thing is, I just have boring, stand-still water graphics. Can someone show me how I can make the two textures in my shader script move sorta like the Simple Water Day/Night prefab; the normal map and base tex kinda cross each other.

I’m kinda new to this whole shaders thing in unity so take it easy with the big words(jk). I catch on pretty fast. Here’s what I got so far:

Shader "Toon/Water"
{
    Properties 
    {
       _Color ("Main Color", Color) = (1,1,1,1)
       _MainTex ("Base", 2D) = "" {} 
       _BlendTex ("Under Tone", 2D) = ""
       _BlendAlpha ("Blend Alpha", float) = -3.0 //-3 as default
    }
    SubShader 
    {
       Tags { "Queue"="Geometry-9" "IgnoreProjector"="True" "RenderType"="Transparent" }
       Lighting Off
       LOD 200
       Blend SrcAlpha OneMinusSrcAlpha
 
       CGPROGRAM
       #pragma surface surf Lambert
 
       fixed4 _Color;
       sampler2D _MainTex;
       sampler2D _BlendTex;
       float _BlendAlpha;
 
       struct Input {
         float2 uv_MainTex;
       };
 
       void surf (Input IN, inout SurfaceOutput o) {
         fixed4 c = ( ( 1 - _BlendAlpha ) * tex2D( _MainTex, IN.uv_MainTex ) + _BlendAlpha * tex2D( _BlendTex, IN.uv_MainTex ) ) * _Color;
         o.Albedo = c.rgb;
         o.Alpha = c.a;
       }
       ENDCG
    }
 
    Fallback "Transparent/VertexLit"
}

If someone could help me out, I’d appreciate it! :smile:

2

It works, but I’m kinda confused. You can add speed variables to shaders? How?

3

Nevermind. I got what I wanted by changing the _Time of _BlendTex to xx. Thank You.

Here’s the finished shader for anyone that wants two layered toon water:

Shader "Toon/Water"
{
    Properties 
    {
       _Color ("Main Color", Color) = (1,1,1,1)
       _MainTex ("Base", 2D) = "" {} 
       _BlendTex ("Under Tone", 2D) = ""
       _BlendAlpha ("Blend Alpha", float) = -3.0 //-3 as default
    }
    SubShader 
    {
       Tags { "Queue"="Geometry-9" "IgnoreProjector"="True" "RenderType"="Transparent" }
       Lighting Off
       LOD 200
       Blend SrcAlpha OneMinusSrcAlpha
 
       CGPROGRAM
       #pragma surface surf Lambert
 
       fixed4 _Color;
       sampler2D _MainTex;
       sampler2D _BlendTex;
       float _BlendAlpha;
 
       struct Input {
         float2 uv_MainTex;
         float4 _Time;
       };
 
       void surf (Input IN, inout SurfaceOutput o) {
         fixed4 c = ( ( 1 - _BlendAlpha ) *  tex2D( _MainTex, IN.uv_MainTex + _Time.xx) + _BlendAlpha * tex2D( _BlendTex, IN.uv_MainTex - _Time.xx) ) * _Color;
         o.Albedo = c.rgb;
         o.Alpha = c.a;
       }
       ENDCG
    }
 
    Fallback "Transparent/VertexLit"
}