text: #pragma once
  
  #ifndef GLEW_STATIC
  #define GLEW_STATIC
  #endif // !GLEW_STATIC
  #include <GL/glew.h>
  
  #include <assimp/material.h>
  
  #include <string>
  
  enum class TextureType
  {
  	NONE			= aiTextureType::aiTextureType_NONE			, 
  	DIFFUSE_MAP		= aiTextureType::aiTextureType_DIFFUSE		,
  	SPECULAR_MAP	= aiTextureType::aiTextureType_SPECULAR
  };
  
  struct Texture
  {
  	GLuint id;
  	TextureType type;
  	aiString path;
  
  	bool placeholder;
  };