public GLObjTextured(GL gl, float[] verts, uint[] indices, string vertPath, string fragPath, bool isDynamic, List <Texture> textures) : base(gl, verts, indices, vertPath, fragPath, isDynamic, 5)
 {
     this.textures = textures;
     this.verts    = verts;
     Vao.VertexAttributePointer(1, 2, VertexAttribPointerType.Float, 5, 3);
     gl.EnableVertexAttribArray(1);
 }