From http://www.jwz.org/xscreensaver/xscreensaver-5.18.tar.gz

[xscreensaver] / hacks / interference.c

diff --git a/hacks/interference.c b/hacks/interference.c
index 937b8d7a126b91e23f6163911a770cc31d1c6c6b..6060798181928ddc2482e2a95a5e8a8fa95ea2a2 100644 (file)
--- a/hacks/interference.c
+++ b/hacks/interference.c
@@ -383,7 +383,7 @@ static void do_inter(struct inter_context* c)
        dx = i*g + g/2 - c->source[k].x;
        dy = j*g + g/2 - c->source[k].y;
        dist = sqrt(dx*dx + dy*dy); /* what's the performance penalty here? */
-       result += (dist > c->radius ? 0 : c->wave_height[dist]);
+       result += (dist >= c->radius ? 0 : c->wave_height[dist]);
       }
       result %= c->colors;
 
@@ -457,6 +457,9 @@ static void
 interference_reshape (Display *dpy, Window window, void *closure, 
                  unsigned int w, unsigned int h)
 {
+  struct inter_context *c = (struct inter_context *) closure;
+  c->w = w;
+  c->h = h;
 }
 
 static Bool