// WIKI: These functions say that the attribute index index​ will get its attribute data from whatever buffer object is currently bound to GL_ARRAY_BUFFER​.
		// Deci, vor fi trimise catre SHADER datele din bufferul bindat in acest moment de tip GL_ARRAY_BUFFER (deci pot sa pun aceste apeluri si dupa bindarea IBO-ului, ca el e de alt tip (GL_ELEMENT_ARRAY_BUFFER)
		unsigned int in_position_pipe = glGetAttribLocation(gl_program_shader, "in_position");
		glEnableVertexAttribArray(in_position_pipe);
		glVertexAttribPointer(in_position_pipe, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)0);

		unsigned int in_color_pipe = glGetAttribLocation(gl_program_shader, "in_color");
		glEnableVertexAttribArray(in_color_pipe);
		glVertexAttribPointer(in_color_pipe, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)(3 * sizeof(float)));