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# hidden3d-endlessloop
--- hidden3d.c.ORIG Thu Aug 19 15:39:28 1999
+++ hidden3d.c Wed Nov 17 17:42:00 1999
@@ -2140,14 +2140,20 @@
test->tested = is_moved_or_split;
SPLIT_TEST_BY_P;
} else {
- if (loop && (p->tested == is_tested)) {
- /* Ouch, seems like we're in trouble, really */
+ if (loop && (p->tested == is_in_loop)) {
+ /* Ouch, seems like we're in trouble, really: no way to
+ * split one of them, and we're in a loop, so we can't
+ * move p to the front of the list, without risking an
+ * endless loop. Well, let's just output the darn thing,
+ * then, no matter what. :-( */
+#if DEBUG /* normally off */
fprintf(stderr, "\
#Failed: In loop, without intersections.\n\
#Relations are %d, %d\n",
p_rel_tplane, t_rel_pplane);
print_polygon(test, "test");
print_polygon(p, "p");
+#endif
continue; /* Keep quiet, maybe no-one will notice (;-) */
} else {
PUT_P_IN_FRONT_TEST(is_in_loop);
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