[Bf-modeling] Mirror Editing

[Jonathan Williamson]

I have actually never once tried to use Mirror Editing on Extrude until
today. I don't think I knew it was there... It's definitely very broken and
inconsistent at the moment so at the very least I vote to remove it from
extrude.

However, regular Mirror Editing is incredibly handy for those times that
you need it. My preference would be to try and make it work as all around
as possible. If I could choose, I would first opt for full settings support
(seams, sharpness, creases), as this is what I most commonly want out of
it. Then after setting support the tool support (extrude, subdivide,
bridge, etc) would be great. I don't see any reason to split it into Off,
On, and On + Tools. I'd vote for just Off/On. This keeps it simple for
users.

I think this is an important tool to fully support, rather than just going
for the Mirror modifier, particularly for those times that you have a model
that is 90% symmetrical. For example, perhaps I've altered a characters
head to make it more interesting and asymmetrical but the rest of the model
is symmetrical. I can't really use a mirror modifier in this case, but the
Mirror Editing would be ideal.

As one last thought, I have no idea what Topology Mirror does. I can't
never seem to get it to work like I'd expect. How's it work?

Jonathan Williamson
http://cgcookie.com


On Sat, Jun 15, 2013 at 3:04 AM, Campbell Barton <ideasman42 at gmail.com>wrote:

> Hi All,
>
> To kick off discussion - one feature Id like to either improve or
> remove is extrude `Mirror Editing` option.
> Bug report (only if your interested in details)
>
> http://projects.blender.org/tracker/index.php?func=detail&aid=33374&group_id=9&atid=498
>
>
> Note that there are only a few tools that support mirror (besides
> painting, weight paint)
> - Transform
> - Smooth
> - Subdivide smooth did in 2.4x
> - Extrude
>
> Extrude aside, I'd also like to consider if we want to try to make
> mirror editing generally more useful to the point that users can
> expect most edits to one half of a mesh will happen to the other...
>
> Since supporting mirror-extrude only is a bit arbitrary IMHO.
>
>
> We could make it work on editing operations like
> subdivide/bridge/inset/bevel, simply by mirroring the selection before
> the operator runs, clearing the selection after.
>
> Also setting properties (edge sharp, crease, assigning materials,
> flipping normals) could be made to work...
>
> Having options for each tool would get annoying, so we could have 3
> states [Mirror: Off|Enabled|Enabled+Tools] --- names could be better,
> Enabled would be for transform only, tools would make all editing
> operations mirror.
>
>
> OR ... we could just assume that if people really want to mirror a
> model they will use the mirror-modifier or edit then symmetrize and
> not loose our development time attempting to make every tool support
> mirror operations.
> - Just remove extrude mirror option and keep mirror limited to a few
> tools as it is now.
>
> Your thoughts?
> --
> - Campbell
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