diff --git a/stl-viewer.c b/stl-viewer.c
index 0df8572..549304f 100644
--- a/stl-viewer.c
+++ b/stl-viewer.c
@@ -41,7 +41,7 @@ void reshape(GLsizei w, GLsizei h)
 	gluPerspective(60.0, 1.0*(GLfloat)w/(GLfloat)h, 1.0, 10000.0);
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity();
-	glTranslatef(0.0, 0.0, -3);
+	glTranslatef(0.0, 0.0, -10);
 }
 
 int	main(int argc, char *argv[])
@@ -81,6 +81,7 @@ int	main(int argc, char *argv[])
 	reshape(WIDTH, HEIGHT);
 	display();
 	SDL_Event event;
+	int dragging = 0;
 	while (SDL_WaitEvent(&event))
 	{
 		if (event.type == SDL_QUIT)
@@ -89,16 +90,25 @@ int	main(int argc, char *argv[])
 		{
 			if (event.key.keysym.sym == SDLK_ESCAPE)
 				break;
-			else if
 		}
-		else if (event.type == SDL_MOUSEDOWN)
+		else if (event.type == SDL_MOUSEBUTTONDOWN)
 		{
+			if (event.button.button == 1)
+				dragging = 1;
 		}
-		else if (event.type == SDL_MOUSEUP)
+		else if (event.type == SDL_MOUSEBUTTONUP)
 		{
+			if (event.button.button == 1)
+				dragging = 0;
 		}
 		else if (event.type == SDL_MOUSEMOTION)
 		{
+			if (dragging)
+			{
+				glRotatef(event.motion.xrel, 0, 1, 0);
+				glRotatef(event.motion.yrel, 0, 0, 1);
+				display();
+			}
 		}
 	}
 
@@ -119,7 +129,6 @@ GLuint	buildDL(void)
 	glBegin(GL_TRIANGLES);
 	for (i = 0; i < n_faces; i++)
 	{
-#if 0
 		if (stl_attr_color_valid(stl_face(stl, i).attribute))
 		{
 			color[0] = stl_attr_color_r(stl_face(stl, i).attribute) / (float) 255;
@@ -131,7 +140,6 @@ GLuint	buildDL(void)
 		else if (!dfltClrAct)
 			glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE,
 				default_color);
-#endif
 		stl_get_face_normal(stl, i, normal);
 //		printf("normal: %f, %f, %f\n",
 //			normal[0], normal[1], normal[2]);
@@ -145,6 +153,7 @@ GLuint	buildDL(void)
 //				stl_face(stl, i).vertices[j][2]);
 			glVertex3fv(stl_face(stl, i).vertices[j]);
 		}
+//		printf("attribute: 0x%x\n", stl_face(stl, i).attribute);
 	}
 	glEnd();
 	glEndList();