--- ray/src/rt/dielectric.c	1989/02/02 10:41:21	1.1
+++ ray/src/rt/dielectric.c	1990/10/15 20:39:30	1.5
@@ -66,6 +66,8 @@ register RAY  *r;
 	if (m->oargs.nfargs != (m->otype==MAT_DIELECTRIC ? 5 : 8))
 		objerror(m, USER, "bad arguments");
 
+	r->rt = r->rot;				/* just use ray length */
+
 	raytexture(r, m->omod);			/* get modifiers */
 
 	cos1 = raynormal(dnorm, r);		/* cosine of theta1 */
@@ -92,7 +94,7 @@ register RAY  *r;
 		else
 			setcolor(mcolor, 1.0, 1.0, 1.0);
 	}
-	mabsorp = intens(mcolor);
+	mabsorp = bright(mcolor);
 
 	d2 = 1.0 - nratio*nratio*(1.0 - cos1*cos1);	/* compute cos theta2 */
 
@@ -253,7 +255,7 @@ double  tr;
 						/* trace source ray */
 		normalize(sray.rdir);
 		rayvalue(&sray);
-		if (intens(sray.rcol) <= FTINY)	/* missed it */
+		if (bright(sray.rcol) <= FTINY)	/* missed it */
 			continue;
 		
 		/*