[Bf-committers] Proxy Removal for Blender 3.0

[Hadrien Brissaud]

Fair enough, I just wanted to make sure we were talking about the same
thing. I haven't tested drivers in linked materials since a few months, so
if it does work I'm a happy man. I'm glad I can make use of those in
upcoming projects. Thanks for all the clarification, have a good day,

Hadrien

On Thu, 23 Sept 2021 at 09:53, Bastien Montagne via Bf-committers <
bf-committers at blender.org> wrote:

> Hmmm, assigning a local copy of the material to an overridde object is
> same issue basically (being complicated to get working), you either have
> to override also the obdata, since by default materials are assigned to
> obdata (meshes and the like), or change that later setting to assign
> materials to objects (in your library file)... But this is tricky to get
> working, order in which things get evaluated in RNA code also matters
> etc. Mine field.
>
> The drivers on material properties should work though, since a few weeks?
>
> Cheers,
> Bastien
>
> On 9/22/21 7:20 PM, Hadrien Brissaud wrote:
> > Alright, good to see this is known already. For clarity's sake, by
> > "overriding material" I didn't mean changing individual node
> > properties and connections and such, but linking a completely
> > different material on the object (usually a copy of the linked one). I
> > didn't actually expect overrides to the node tree topology/properties
> > to be supported, that sounds awfully complex. It is probably simpler
> > to approach "material variations on linked assets" through drivers
> > between the object's custom properties and its material, which so far
> > doesn't work either -this is something that I tried during production
> > and eventually resorted to local materials because those drivers would
> > fail upon linking the character.
> >
> > Thanks for your reply, have a good evening
> >
> > Hadrien
> >
> >
> > On Wed, 22 Sept 2021 at 10:43, Bastien Montagne via Bf-committers
> > <bf-committers at blender.org <mailto:bf-committers at blender.org>> wrote:
> >
> >     Hi Hadrien,
> >
> >     Thanks for the feedback. Yes overrides of materials are still very
> >     unreliable, this is due to how materials are weirdly related to both
> >     Object and ObData IDs... not to mention that there is currently
> >     almost
> >     nothing overridable in materials anyway, so you would need to rely on
> >     tricks (drivers and custom properties) to get some properties
> >     editable etc.
> >
> >     Time was lacking to address this issue for 3.0, it is a known TODO
> >     for
> >     the near future, together with some other annoying limitations.
> >
> >     All development on liboverrides happens in master currently, no
> >     branch
> >     to try out.
> >
> >     Cheers,
> >     Bastien
> >
> >     On 9/21/21 7:15 PM, Hadrien Brissaud wrote:
> >     > Hi Bastien,
> >     >
> >     > as a user I am generally happy with overrides (thanks!!), except
> >     when
> >     > I need to override a material. Last I tested the behaviour was
> >     rather
> >     > unpredictable : an override was -seemingly- created, but on file
> >     > reload it would revert to the linked material instead, and the
> >     > override button was inoperative (greyed out). I will give this a
> >     round
> >     > of testing with latest master tonight, unless there is a specific
> >     > branch I should check out ? I'm a bit out of the loop.
> >     >
> >     > Cheers,
> >     >
> >     > Hadrien
> >     >
> >     > On Tue, 21 Sept 2021 at 16:32, Bastien Montagne via Bf-committers
> >     > <bf-committers at blender.org <mailto:bf-committers at blender.org>
> >     <mailto:bf-committers at blender.org
> >     <mailto:bf-committers at blender.org>>> wrote:
> >     >
> >     >     Hi fellow users & developers
> >     >
> >     >     Now that library overrides gained maturity and are production
> >     >     ready in
> >     >     the 'character animation' case (where they replace the old
> >     'proxy'
> >     >     system), it is time to think about removing those proxies.
> >     >
> >     >     Plan is to commit in the coming days the following changes:
> >     >       - Add auto-conversion of proxies into library overrides on
> >     file
> >     >     load;
> >     >       - Remove the 'make proxy' operator.
> >     >
> >     >     For the time being, an option (OFF by default) will be added
> >     to the
> >     >     'Experimental' part of the User Preferences to skip converting
> >     >     existing
> >     >     proxies on file load. That way it is still possible to force
> >     keeping
> >     >     proxies if absolutely necessary, and/or for test purposes.
> >     >
> >     >     If everything goes well this option will be removed towards the
> >     >     end of
> >     >     BCon2 (end of October 2021). Full cleanup of internal proxy
> >     >     evaluation
> >     >     and management code can then happen during BCon1 of Blender
> 3.1.
> >     >
> >     >     Cheers,
> >     >     Bastien
> >     >
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