From http://www.jwz.org/xscreensaver/xscreensaver-5.37.tar.gz

[xscreensaver] / hacks / fireworkx.c

diff --git a/hacks/fireworkx.c b/hacks/fireworkx.c
index db1c8d8168a658096cea796f3b7b18603f59de57..faf3745e23a160240ba3f391e85c20861ee86efe 100644 (file)
--- a/hacks/fireworkx.c
+++ b/hacks/fireworkx.c
@@ -143,8 +143,8 @@ static void render_light_map(struct state *st, fireshell *fs)
        {
                for (x = 0; x < st->width; x += 2, v += SHELLCOUNT)
                {
-                       float f;
-                       f = sqrtf((fs->cx - x) * (fs->cx - x) + (fs->cy - y) * (fs->cy - y)) + 4.0;
+                       double f;
+                       f = sqrt((fs->cx - x) * (fs->cx - x) + (fs->cy - y) * (fs->cy - y)) + 4.0;
                        f = FLASH_ZOOM / f;
                        f += pow(f,0.1) * frand(0.0001); /* dither */
                        st->light_map[v] = f;