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

[CoDEmanX]

I agree as well, especially when it comes to game engine export, it 
would be great to have that visual feedback. Several engine formats 
don't allow verts without weight / with no vgroup and I've seen exporter 
addons complain about such verts. A visual feedback would help users to 
find these easily.


Am 14.02.2013 10:03, schrieb 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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