#version 330 core
layout (location = 0) in vec3 aPos;
layout (location = 1) in vec3 aNormal;
layout (location = 2) in vec2 aTexCoords;
out vec3 fragNormals;
out vec3 fragPos;
out vec2 texCoords;

uniform mat4 model;
uniform mat4 view;
uniform mat4 projection;
uniform mat3 normalMatrix;
uniform bool useNormalMatrix;

void main()
{
  gl_Position = projection * view * model * vec4(aPos, 1.0f);
  if (useNormalMatrix)
    fragNormals = normalMatrix * aNormal;
  else
    fragNormals = mat3(transpose(inverse(model))) * aNormal;
  fragPos = vec3(model * vec4(aPos, 1.0));
  texCoords = aTexCoords;
}