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[xonotic/netradiant.git] / regression_tests / q3map2 / piercing_triangle / README.txt

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+DESCRIPTION OF PROBLEM:
+=======================
+
+In the disappearing_triangle regression test I outlined a potential problem
+in the tjunction.c code, having to do with 2 points being too close together
+on a winding, and that winding becoming invalid (drawsurf disappearing).
+
+This example map is the same as disappearing_triangle.map, except that the
+floor is raised by 1 unit.  Therefore the floor intersects the sliver triangle.
+The resulting chopped sliver has a very short edge that is "degenerate" and
+causes that draw surf to go away due to problems in the tjunction.c code.
+
+This is speculation at this point.  I will provide more info after the bug has
+been fixed.