Adding duplicate_plane regression test.

git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/branches/Rambetter-math-fix-experiments@413 8a3a26a2-13c4-0310-b231-cf6edde360e5

regression_tests/q3map2/duplicate_plane/README.txt

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+DESCRIPTION OF PROBLEM:
+=======================
+
+The 4-sided brush in the middle of the room (brush 0) has a duplicate plane.
+The last side (side 4) is a duplicate of the third side (side 2) with the
+vertexes re-arranged.
+
+I wanted to make sure that ChopWindingInPlaceAccu() is doing the right thing
+by setting a winding to NULL when all its points lie on the plane that the
+winding is being chopped with.  This seems to be the case.  My concern was
+that both windings for that duplicate plane will be NULL'ed out.
+
+Seems that some other code might be fixing duplicate planes.  That's OK.

regression_tests/q3map2/duplicate_plane/maps/duplicate_plane.map

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+// entity 0
+{
+"classname" "worldspawn"
+// brush 0
+{
+( 136 128 64 ) ( -128 128 64 ) ( -128 -192 64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 136 128 384 ) ( -128 128 384 ) ( -128 128 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 128 -192 0 ) ( -128 128 0 ) ( 128 -192 384 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -128 128 256 ) ( 128 128 64 ) ( -128 -192 256 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 128 -192 384 ) ( 128 -192 0 ) ( -128 128 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+// brush 1
+{
+( 256 256 -8 ) ( -256 256 -8 ) ( -256 -256 -8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -256 0 ) ( -256 256 0 ) ( 256 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -256 -256 8 ) ( 256 -256 8 ) ( 256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 8 ) ( 256 256 8 ) ( 256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 256 8 ) ( -256 256 8 ) ( -256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 256 8 ) ( -256 -256 8 ) ( -256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+// brush 2
+{
+( -256 256 0 ) ( -280 256 0 ) ( -280 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -280 -256 384 ) ( -280 256 384 ) ( -256 256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -280 -256 384 ) ( -256 -256 384 ) ( -256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -256 384 ) ( -256 256 384 ) ( -256 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -256 256 384 ) ( -280 256 384 ) ( -280 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -264 256 392 ) ( -264 -256 392 ) ( -264 -256 8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+// brush 3
+{
+( 280 256 0 ) ( 256 256 0 ) ( 256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 384 ) ( 256 256 384 ) ( 280 256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 384 ) ( 280 -256 384 ) ( 280 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 264 -256 384 ) ( 264 256 384 ) ( 264 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 280 256 384 ) ( 256 256 384 ) ( 256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 256 384 ) ( 256 -256 384 ) ( 256 -256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+// brush 4
+{
+( 256 256 384 ) ( -256 256 384 ) ( -256 -256 384 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -248 -256 392 ) ( -248 256 392 ) ( 264 256 392 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -256 424 ) ( 256 -256 424 ) ( 256 -256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 424 ) ( 256 256 424 ) ( 256 256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 256 424 ) ( -256 256 424 ) ( -256 256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 256 424 ) ( -256 -256 424 ) ( -256 -256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+// brush 5
+{
+( 256 296 0 ) ( -256 296 0 ) ( -256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 256 384 ) ( -256 296 384 ) ( 256 296 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 256 384 ) ( 256 256 384 ) ( 256 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 256 256 384 ) ( 256 296 384 ) ( 256 296 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 264 392 ) ( -256 264 392 ) ( -256 264 8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 296 384 ) ( -256 256 384 ) ( -256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+// brush 6
+{
+( 256 -256 0 ) ( -256 -256 0 ) ( -256 -296 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -296 384 ) ( -256 -256 384 ) ( 256 -256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -264 392 ) ( 256 -264 392 ) ( 256 -264 8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -296 384 ) ( 256 -256 384 ) ( 256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 384 ) ( -256 -256 384 ) ( -256 -256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -256 -256 384 ) ( -256 -296 384 ) ( -256 -296 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+// entity 1
+{
+"origin" "-8 16 256"
+"classname" "info_player_deathmatch"
+}
+// entity 2
+{
+"light" "1000"
+"origin" "-32 -40 256"
+"classname" "light"
+}