--- ray/src/common/view.h	1989/02/02 10:34:24	1.1
+++ ray/src/common/view.h	1989/12/10 13:41:08	1.2
@@ -23,6 +23,8 @@ typedef struct {
 	int  vresolu;		/* vertical resolution */
 	FVECT  vhinc;		/* computed horizontal increment */
 	FVECT  vvinc;		/* computed vertical increment */
+	double  vhs2;		/* 1.0/DOT(vhinc,vhinc) */
+	double  vvs2;		/* 1.0/DOT(vvinc,vvinc) */
 } VIEW;			/* view parameters */
 
 extern VIEW  stdview;