#version 330 core
layout (location = 0) in vec3 aPos;

out vec3 WorldPos;

uniform mat4 view;
uniform mat4 projection;

void main() {
  WorldPos = aPos;

  /* Force depth value to 1.0 after perspective division
   * to ensure the skybox is always rendered behind everythig else.
   */
  vec4 pos = projection * view * vec4(WorldPos, 1.0);
  gl_Position = pos.xyww;
}