Simple 2d Water

Gregnow

Very simple 2d  water for cartoon game graphics

Shader code
shader_type canvas_item;


uniform sampler2D bg : hint_albedo;
uniform sampler2D wave1 : hint_albedo;
uniform sampler2D wave2 : hint_albedo;
uniform sampler2D noise : hint_black_albedo;

vec2 tile(vec2 _st, float _zoom){
    _st *= _zoom;
    return fract(_st);
}

float box(vec2 _st, vec2 _size){
    _size = vec2(0.5)-_size*0.5;
    vec2 uv = smoothstep(_size,_size+vec2(1e-4),_st);
    uv *= smoothstep(_size,_size+vec2(1e-4),vec2(1.0)-_st);
    return uv.x*uv.y;
}

void fragment(){
	vec2 st = vec2(UV.x/(SCREEN_PIXEL_SIZE.y/SCREEN_PIXEL_SIZE.x),UV.y);
    vec3 color = vec3(0.0);
   st = tile(st,8.0);
	color += texture(bg,st).rgb;
	color += 0.5* texture(wave1,vec2(st.x + TIME * 0.02,st.y +0.2  + sin(TIME*1.5) * 0.06)).rgb / 0.5 * texture(noise,vec2(st.x + cos(TIME * 0.5),st.y)).rgb;
	color += 0.5* texture(wave2,vec2(st.x - TIME * 0.08,st.y)).rgb / 0.5 * texture(noise,vec2(st.x ,st.y - sin(TIME * 0.5))).rgb;
	COLOR = vec4(color,1.0);
}
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Tags
2d_water, sea, water
Get demo project
The shader code and all code snippets in this post are under MIT license and can be used freely. Images and videos, and assets depicted in those, do not fall under this license. For more info, see our License terms.

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Comments 5

  2. Fresh

    I add it to any project other than the demo one and the shader completely breaks

    0

  3. Godot 4.3

     

    shader_type canvas_item;

     

    uniform sampler2D bg : source_color;
    uniform sampler2D wave1 : source_color;
    uniform sampler2D wave2 : source_color;
    uniform sampler2D noise : hint_default_black;

     

    vec2 tile(vec2 _st, float _zoom){
      _st *= _zoom;
      return fract(_st);
    }

     

    float box(vec2 _st, vec2 _size){
      _size = vec2(0.5)-_size*0.5;
      vec2 uv = smoothstep(_size,_size+vec2(1e-4),_st);
      uv *= smoothstep(_size,_size+vec2(1e-4),vec2(1.0)-_st);
      return uv.x*uv.y;
    }

     

    void fragment(){
    vec2 st = vec2(UV.x/(SCREEN_PIXEL_SIZE.y/SCREEN_PIXEL_SIZE.x),UV.y);
      vec3 color = vec3(0.0);
      st = tile(st,8.0);
    color += texture(bg,st).rgb;
    color += 0.5* texture(wave1,vec2(st.x + TIME * 0.02,st.y +0.2 + sin(TIME*1.5) * 0.06)).rgb / 0.5 * texture(noise,vec2(st.x + cos(TIME * 0.5),st.y)).rgb;
    color += 0.5* texture(wave2,vec2(st.x - TIME * 0.08,st.y)).rgb / 0.5 * texture(noise,vec2(st.x ,st.y - sin(TIME * 0.5))).rgb;
    COLOR = vec4(color,1.0);
    }

    2