X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hacks%2Fflame.c;h=bbdbfdec93437ad43a22c508d85d101938615054;hb=c6b273ef7292ba10943694df1656b05203d7b62f;hp=d723f055e8cee09572da6171878936590a477f99;hpb=f3e0240915ed9f9b3a61781f5c7002d587563fe0;p=xscreensaver

diff --git a/hacks/flame.c b/hacks/flame.c
index d723f055..bbdbfdec 100644
--- a/hacks/flame.c
+++ b/hacks/flame.c
@@ -175,6 +175,14 @@ recurse (double x, double y, int l, Display *dpy, Window win)
     {
       for (i = 0; i < snum; i++)
 	{
+
+	  /* Scale back when values get very large. Spot sez:
+	     "I think this happens on HPUX.  I think it's non-IEEE
+	     to generate an exception instead of a silent NaN."
+	   */
+	  if ((abs(x) > 1.0E5) || (abs(y) > 1.0E5))
+	    x = x / y;
+
 	  nx = f[0][0][i] * x + f[0][1][i] * y + f[0][2][i];
 	  ny = f[1][0][i] * x + f[1][1][i] * y + f[1][2][i];
 	  if (i < anum)
@@ -373,8 +381,8 @@ int matherr(x)
 char *progclass = "Flame";
 
 char *defaults [] = {
-  "Flame.background:	black",		/* to placate SGI */
-  "Flame.foreground:	white",
+  "*background:	black",
+  "*foreground:	white",
   "*colors:	64",
   "*iterations:	25",
   "*delay:	50000",