--- ray/src/util/glrad.c	1998/06/19 11:29:50	3.6
+++ ray/src/util/glrad.c	1998/07/08 18:00:39	3.8
@@ -173,7 +173,8 @@ char	*argv[];
 					/* all done */
 	quit(0);
 userr:
-	fprintf(stderr, "Usage: %s [-w][-b][-v view] rfile [VAR=value]..\n",
+	fprintf(stderr,
+		"Usage: %s [-w][-s][-b][-S][-v view] rfile [VAR=value]..\n",
 			argv[0]);
 	quit(1);
 }
@@ -423,7 +424,7 @@ char  *id;
 	glDepthFunc(GL_LESS);
 	glShadeModel(GL_SMOOTH);
 	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-	glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
+	glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
 	glEnable(GL_LIGHTING);
 	if (backvis)
 		glDisable(GL_CULL_FACE);