#pragma language glsl3
varying float hue;
uniform float time;

#ifdef VERTEX
uniform mat4 proj;
uniform mat4 view;
uniform sampler2D canvas;

vec4 position(mat4 transform_projection, vec4 vertex_position)
{
  return vertex_position;
}
#endif
#ifdef PIXEL

vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 screen_coords)
{
  return color;
}
#endif