On Mon, Jul 15, 2013 at 1:41 PM, Ton Roosendaal <[email protected]> wrote: > Hi, > > Bart asked me for a user-readable text about OpenSubdiv for BlenderNation: > > OpenSubdiv is Pixar's open source project to handle Subdivision Surface > generation and drawing. In Blender this is currently handled by 1 thread > only, and it needs to generate the subsurfed data first, before it can draw. > > OpenSubdiv instead: > - allows full threading, including use of GPU > - creates and draws subsurfed "on the fly", so you don't need to > generate/store data > - has excellent crease support > - has adaptive (screen space) subdivision > - supports Ptex natively (non UV texture mapping) > > In Cycles OpenSubdiv will replace the incomplete subdivision surface > implementation, to enable faster BVH builds and lower memory usage for > subdivision surfaces, as well as Ptex rendering support. > > Integrating will require a lot of work inside Blender however, so it will > take some time before there is an official release with OpenSubdiv support. > Especially support for multires and sculpt will be complex. A planning for > this work and a set of actions still has to be defined. > > Nevertheless, Brecht is already on it, and expects to have a first WIP demo > of Cycles-OpenSubdiv at Siggraph next week! > > Note about the license: OpenSubdivs Apache license is only GPL V3 compatible. > Blender is "GPL V2 or later", so that should work fine. However, we do need > to check every library we use too, Carve still is GPL V2 only (already > connected with Tobias about it). > > Thanks, >
> -Ton- This is a good user video about it. http://www.youtube.com/watch?v=xFZazwvYc5o -- Douglas E Knapp Creative Commons Film Group, Helping people make open source movies with open source software! http://douglas.bespin.org/CommonsFilmGroup/phpBB3/index.php Massage in Gelsenkirchen-Buer: http://douglas.bespin.org/tcm/ztab1.htm Please link to me and trade links with me! Open Source Sci-Fi mmoRPG Game project. http://sf-journey-creations.wikispot.org/Front_Page http://code.google.com/p/perspectiveproject/ _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
