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There are two issues revealed in the bug report: - the GPU subdivision does not support meshes with only loose geometry - the loose geometry is not subdivided For the first case, checks are added to ensure we still fill the buffers with loose geometry even if no polygons are present. For the second case, this adds `BKE_subdiv_mesh_interpolate_position_on_edge` which encapsulates the loose vertex interpolation mechanism previously found in `subdiv_mesh_vertex_of_loose_edge`. The subdivided loose geometry is stored in a new specific data structure `DRWSubdivLooseGeom` so as to not pollute `MeshExtractLooseGeom`. These structures store the corresponding coarse element data, which will be used for filling GPU buffers appropriately. Differential Revision: https://developer.blender.org/D14171
.. Keep this document short & concise, linking to external resources instead of including content in-line. See 'release/text/readme.html' for the end user read-me. Blender ======= Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline-modeling, rigging, animation, simulation, rendering, compositing, motion tracking and video editing. .. figure:: https://code.blender.org/wp-content/uploads/2018/12/springrg.jpg :scale: 50 % :align: center Project Pages ------------- - `Main Website <http://www.blender.org>`__ - `Reference Manual <https://docs.blender.org/manual/en/latest/index.html>`__ - `User Community <https://www.blender.org/community/>`__ Development ----------- - `Build Instructions <https://wiki.blender.org/wiki/Building_Blender>`__ - `Code Review & Bug Tracker <https://developer.blender.org>`__ - `Developer Forum <https://devtalk.blender.org>`__ - `Developer Documentation <https://wiki.blender.org>`__ License ------- Blender as a whole is licensed under the GNU General Public License, Version 3. Individual files may have a different, but compatible license. See `blender.org/about/license <https://www.blender.org/about/license>`__ for details.