From 9eb8b30aebbb4d61f521f36e9ba7b1f182cd1740 Mon Sep 17 00:00:00 2001
From: William Joye <wjoye@cfa.harvard.edu>
Date: Fri, 25 Oct 2019 11:46:47 -0400
Subject: clean up frame code

---
 tksao/frame/frame3d.C | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/tksao/frame/frame3d.C b/tksao/frame/frame3d.C
index 30c2d78..5ae2bbd 100644
--- a/tksao/frame/frame3d.C
+++ b/tksao/frame/frame3d.C
@@ -826,19 +826,15 @@ unsigned char* Frame3d::fillImageColor(RayTrace* rt)
 
   XColor* bgColour = bgColor();
 
-  register unsigned char red = (unsigned char)bgColour->red;
-  register unsigned char green = (unsigned char)bgColour->green;
-  register unsigned char blue = (unsigned char)bgColour->blue; 
-
   unsigned char* dest = img;
   float* src = zbuf;
   unsigned char* mksrc = mkzbuf;
 
   for (int jj=0; jj<height; jj++) {
     for (int ii=0; ii<width; ii++, dest+=3, src++, mksrc++) {
-      *dest = red;
-      *(dest+1) = green;
-      *(dest+2) = blue;
+      *dest = (unsigned char)bgColour->red;
+      *(dest+1) = (unsigned char)bgColour->green;
+      *(dest+2) = (unsigned char)bgColour->blue;
 
       // will not see nan
       if (isfinite(diff)) {
-- 
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