Over the past weeks we have been attempting to get hair working for all our shots.
So far Joe has been working on changes to the solver code in our own branch but the results solve some problems while causing others (Im not sure on the details). Joe says the problem is the goal code, which is a little hackish, and the bending springs don't work right for hair. so it would be a real help is dev's who are familiar with these problems can investigate. I haven't been involved in the hair solver side of things, mostly just making sure its possible to run the simulations on proxies on our linking setup, testing and setting up bakes for our shots, have cache save/load etc. At the moment it would even be good to see a mediocre hair sim even if their are intersections with the head. >From tweaking the settings I had trouble even getting this, though its possible that the problem with my settings. Would greatly appreciated if any developers have time to look into this. Notes: - can test in trunk or render branch, give different results but neither are great. - collision is off in this file, seems very tricky to have working stable, (sintel's low poly head mesh is a collier). - try run the bake on 2-3 sec for fast updates (Brecht has done some work on realtime redraw's but not ready to commit) Heres a blend file with Sintel's hair and the animation (1.0mb) http://durian.blender.org/wp-content/uploads/05.8b.blend Heres a video of what I managed to get so far (2.0mb)... http://durian.blender.org/wp-content/uploads/05.8b.ogv Here are the settings used in the animation... psys.cloth.settings.quality = 30 psys.cloth.settings.structural_stiffness= 12.0 # good overall value to control stiffness, 12 is needed for running up stairs psys.cloth.settings.pin_stiffness = 0.5 # above 0.6 can become unstable! psys.cloth.settings.bending_stiffness = 80.0 psys.cloth.settings.spring_damping = 30.0 psys.cloth.settings.air_damping = 2.5 psys.cloth.settings.mass = 0.015 psys.cloth.settings.internal_friction = 0.1 # 0.9 makes hair too symmetrical psys.cloth.settings.structural_stiffness= 60.0 -- - Campbell _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
