Shader = {}
Shader.RadiusGradient = love.graphics.newShader[[
  uniform float pos_x;
  uniform float pos_y;
  uniform float range;
  uniform float scale;

  vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 screen_coords ){

    vec4 pixel = Texel(texture, texture_coords );//This is the current pixel color

    float distance_x = pos_x - screen_coords.x / scale;
    float distance_y = pos_y - screen_coords.y / scale;
    float distance = sqrt( pow(distance_x,2) + pow(distance_y,2) ) ;
    if (distance < range){
      float alpha = 1-(2*distance/range);
      if (pixel.a > alpha){
        pixel.a = alpha;
      }
    }
    return pixel * color * color;
  }
]]