[Bf-committers] GSoC 2018: Layer Painting Proposal

[Yury Baranov]

Hi, Cheryl Chen!
Also, with new Eevee engine, you should consider making "material painting"
which means simultaneous painting on multiple bitmaps with different colors.
For example, "paint with shiny copper metal" means:
- paint copper-red color in albedo/basecolor channel
- paint white color in metalness channel
- paint black color in roughness channel
All at the same time.
That will be really cool feature, and very close to your initial proposal.

2018-03-26 0:00 GMT+03:00 Kévin Dietrich <kevin.dietrich at mailoo.org>:

> Le 2018-03-23 00:28, Cheryl Chen a écrit :
>
> > Thank you for the support, Ricardo, and thanks for the feedback, Kévin!
> > I hadn't really considered how to deal with the performance issues, and
> > your diff is a really helpful reference as well. May I ask what other
> > difficulties you encountered while working on this feature? It may be
> > because of time constraints and changes to the Blender codebase, but it
> is
> > a bit concerning that a fair bit of work has gone into building layer
> > support (seeing that there also was a GSoC project in 2010), and it
> hasn't
> > really been completed yet. It will be really helpful to gain some more
> > insight, as I may be approaching this task too naively...
> >
> > Best,
> > Cheryl
> > _______________________________________________
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>
> Performance was the main issue during the various implementation
> efforts. Then there is also the case of how to save layer data as
> Blender does not save images currently. However, in the diff, this
> behavior was changed such that image data and layers are saved to .blend
> files. So performance and I/O are the important bits.
>
> Regards,
>
> Kévin.
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