The Racket repository
e05ec03a6d
Previously, the BSP type had a "negative" and "positive" subtree, and a collection of unsorted "zero" (on the plane) shapes. Rather than "zero" being a subtree (which would sort the shapes), it's rolled into "positive", with corresponding changes to the BSP walk. BSP tree build now supports scenes without polygons, though it does split on polygonal planes first. When all such splits fail (usually because there are no polygons, but might be because all the shapes lie on one polygon's plane), it tries splitting on planes containing line segments. When that fails (usually because there are no line segments), it tries splitting disjointly on all remaining vertexes, then splitting at the midpoint of the longest axis. Upshot: it'll draw a double helix created by two `parametric3d' renderers properly. |
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This is the source code for the main Racket distribution. See "INSTALL.txt" for information on building Racket. License ------- Racket Copyright (c) 2010-2014 PLT Design Inc. Racket is distributed under the GNU Lesser General Public License (LGPL). This means that you can link Racket into proprietary applications, provided you follow the rules stated in the LGPL. You can also modify Racket; if you distribute a modified version, you must distribute it under the terms of the LGPL, which in particular means that you must release the source code for the modified software. See racket/src/COPYING_LESSER.txt for more information.