text: #ifndef GLE_VERTEX_SHADER_H
  #define GLE_VERTEX_SHADER_H
  
  #include "../GLEstdafx.h"
  #include <string>
  #include "GLEShader.h"
  
  class GLEVertexShader : public GLEShader {
  public:
  	GLEVertexShader(const std::string &filePath);
  	GLEVertexShader();
  	virtual ~GLEVertexShader() = default;
  
  	bool init() override;
  	bool attach(const GLuint &programId) override;
  };
  
  #endif // !GLE_SHADER_H
  