added attributes to materials

QtMeshViewer/Header/FileInterface.h

@@ -45,7 +45,9 @@ struct Material {
 	QOpenGLTexture* texture = Q_NULLPTR;
 	bool transparent = false;
 	float shininess = 80;						//TODO: read from file
-	QVector3D specularColor = {1.0,1.0,1.0};	//TODO: read from file
+	QVector4D specularColor = {1.0,1.0,1.0, 1.0};	//TODO: read from file, change to 4D
+	QVector4D diffuseColor;
+	QVector4D ambientColor;
 };
 
 class FileInterface : public QObject