unfa🇺🇦
Does anyone know of a decent open-source UV packing add-on for Blender? I've found an excellent proprietary one, but I'd prefer libre solutions :)
#Blender3D #b3d #UV #uvunwrap #3d
Sep 24, 2019 at 10:27amWeb
Show threadAndy CuccaroSep 24, 2019
@unfa I only know of Magic UV, which comes bundled within Blender. By the way, there isn't proprietary add-ons for Blender. As far as I know, they all must be GPL-licensed, because they use Blender's code and inherit the license. So, if you buy an add-n, you have the right to view and modify the source.
(I know that technically, there can be proprietary add-ons for Blender, but they can't use any of Blender's code, so nobody does it).
Show threadunfa🇺🇦Sep 24, 2019
@andycuccaro Ah, ok. I saw a commercial add-on, so maybe that's a difference.
Show threadAndy CuccaroSep 24, 2019
@unfa yes, there are many commercial add-ons available. But they are all (or almost all) open source.
Show threadChameleon ScalesSep 24, 2019
@unfa
I really don't think there is. It's definitely planned in Blender core dev but it's one of those things we'll have to wait or pay for. There's always the human brain though, it's pretty good at packing things tightly for some reason.
Show threadunfa🇺🇦Sep 24, 2019
@ChameleonScales Yeah, but when a model is gonna have hundreds of UV islands it'd be neat to automate that. Well, I'm gonna do it manually I guess :D
Show threadChameleon ScalesSep 24, 2019
@unfa If you have hundreds of them, maybe you can try running a physics simulation?
I haven't tried it but theoretically, shrinking and shaking a box should pack things pretty tightly.
Show threadunfa🇺🇦Sep 24, 2019
@ChameleonScales That's an interesting idea but I don't know how I could do that. The UV islands are not concertable to extruded shapes that can be messed with in a rigid body simulation. Someone would have to program that - but there's other problems with such approach - it would not automatically fill the available texture space, you'd need a way to scale everything up slowly to the point where it does fill the space. But changing the scale of rigid body objects causes glitches.
Show threadChameleon ScalesSep 25, 2019
@[email protected] I don't find a translation to "concertable" in my language (French) so I'm not clear about your first phrase.
Also my idea is not to grow the objects but rather shrink (and shake) the box. To be more precise the box would be thin in depth to make sure the objects don't fall behind each other and the extrusion would be thin enough to ensure the smallest objects don't rotate in an undesired direction.
Of course a 2D physics simulation would be much more optimal. Maybe there's an app for it?