#version 450

//
// IN
//

layout(location = 0) in vec3 in_position;
layout(location = 1) in vec3 in_normal;
layout(location = 2) in vec2 in_UV;

//
// OUT
//

layout(location = 0) out vec2 out_UV;
layout(location = 1) out vec3 out_normal;
layout(location = 2) out vec3 out_world_position;

//
// UNIFORMS
//

layout(set = 0, binding = 0) uniform Camera {
  mat4 projection;
  mat4 view;
} camera;

layout(set = 0, binding = 1) uniform Model {
  mat4 model;
} object;

/// ----------------------------------------------------
/// ----------------------------------------------------
void main() {
  // --- GET WORLD POSITION ---
  vec4 world_position = object.model * vec4(in_position, 1.0);

  // --- SHOW POSITION AT ---
  gl_Position = camera.projection * camera.view * world_position;

  // --- SET ---
  out_UV = in_UV;
  out_normal = mat3(transpose(inverse(object.model))) * in_normal;
  out_world_position = world_position.xyz;
}