#version 330 core

layout(location = 0) in vec3 a_position;
layout(location = 1) in vec3 a_normal;
layout(location = 2) in vec2 a_texCoord;

uniform mat4 u_mvp;
uniform mat4 u_model;

out vec3 v_normal;
out vec2 v_texCoord;
out vec3 v_worldPos;

void main() {
  v_normal = mat3(transpose(inverse(u_model))) * a_normal;
  v_texCoord = a_texCoord;
  v_worldPos = vec3(u_model * vec4(a_position, 1.0));
  gl_Position = u_mvp * vec4(a_position, 1.0);
}