[Bf-committers] Weight paint: display unreferenced verts in black instead of blue ?

[Damir Prebeg]

I agree with Gaia, Blender lacks in visual feedback in some areas, this is
one of them.

On 14 February 2013 09:59, Gaia <gaia.clary at machinimatrix.org> wrote:

> Hi, Campbell;
>
> So i have to ask back: Where would it be bad to get a visual
> information about unreferenced vs. referenced verts  using
> the black/blue color code ?
>
> There are situations where knowing if a vertex is referenced
> (even with zero weight) becomes relevant. It can even be
> wanted that verts are members of a vertex group but weighted
> to zero (or almost zero). And in such a case cleaning up low/zero
> weighted vertices with blender cleanup tool might be not practical.
> And seeing them all in blue doesn't help either.
>
> One case where it is mandatory to have each vertex be placed in
> at least one vertex group is when it comes to create items for
> game engines outside of Blender. Yes, we already have added a
> lot of helper tools to our own addons for finding unreferenced
> verts, visualising them, forbid to export partially unweighted
> meshes, etc.
>
> However getting this little extra visual control would help as well.
>
> cheers,
> Gaia
>
> On 14.02.2013 03:04, Campbell Barton wrote:
> > On Thu, Feb 14, 2013 at 12:32 PM, Gaia <gaia.clary at machinimatrix.org>
> wrote:
> >> Hi;
> >>
> >> This is about weight painting in blender compared to
> >> weight painting in Maya:
> >>
> >> In Maya:
> >>
> >> Maya displays locations in black if the corresponding verts
> >> are NOT member of the active vertex group. All  other parts
> >> are displayed as usual (blue to red)
> >>
> >> Maya also supplies a delete from group brush which allows
> >> to remove verts from the current vertex group.
> >>
> >> Both features are very intuitive and easy to use as far as i
> >> can tell after playing a bit with it.
> >>
> >> ====
> >>
> >> In blender:
> >>
> >> Vertices which are not in the active vgroup and zero weighted
> >> vertices are both displayed in blue. The only method (that i know)
> >> to find out which verts are members of the current
> >> vertex group is:
> >>
> >> - go to edit mode
> >> - unselect all verts
> >> - select all verts from the current vertex groups.
> >>
> >> If you want to know which verts are weighted to 0:
> >>
> >> - go to weight paint mode
> >> - enable vertex select mask
> >>
> >> Now you can see all verts in the groups displayed as yellow
> >> dots. If you want to remove verts from the group:
> >>
> >> - go back to edit mode
> >> - select the verts you want to remove
> >> - remove from current group
> >>
> >> ====
> >>
> >> What do you think about adding such a feature to Blender as well ?
> >>
> >> cheers,
> >> Gaia
> > What is the reason you are concerned with which vertex is in a group or
> not?
> >
> > The typical work-flow for blender treats zero weighted verts the same
> > as verts which aren't in the group.
> > You can do your weight painting, then run 'Clean' tool to remove zero
> > weight verts (to be a little more efficient).
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