Псевдо-жидкость

    float2 uv = -1. + 2. * In.v_texcoord;
    for(int i = 0; i < 10; ++i) {
        uv.y += sin(uv.x * i * 4 + 6 * sin(0.3 * U.time)) * 0.01 * i;
        uv.x += sin(uv.y * i * 3 + 8 * cos(0.1 * U.time)) * 0.01 * i;
    }
    uv = uv * 0.5 + 0.5;
    float4 a = mix(float4(1,0,0,1), float4(1,1,0,1), uv.x);
    float4 b = mix(float4(0,0,1,1), float4(0,1,0,1), uv.x);
    float4 c = mix(a, b, uv.y);
    return pow(c,0.75);