[Bf-funboard] Feature Request: Uniformity setting for the Decimate modifier

[Campbell Barton]

Here's an example of how decimate can be made more uniform taking edge
length into account.

http://members.iinet.net.au/~ideasman42/pics/decimate_uniform.png

https://developer.blender.org/P336

However this example is so simple, we would want to have some more
complex tests to really see its impact.

On Tue, Mar 15, 2016 at 11:04 AM, Julio Iglesias <j at zafio.com> wrote:
> Maybe this doesn't constitute a "especially bad" case, but it was for me:
>
> https://dl.dropboxusercontent.com/u/2294713/cushion.blend
>
> I would swear Decimate did a better job with those UVs in past versions...
> :?

Which version? Tested 2.66, and didn't notice significant difference.

>
> On Mon, Mar 14, 2016 at 3:17 AM, Campbell Barton <ideasman42 at gmail.com>
> wrote:
>
>> On Tue, Feb 9, 2016 at 5:27 AM, Jacob Merrill
>> <blueprintrandom1 at gmail.com> wrote:
>> > also +1 for a 'preserve symmetry' ?
>>
>> This was added for 2.77
>>
>>
>> https://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.77/Modeling#Modifiers
>>
>>
>> > also, UV does not seem to work like it used to...
>> >
>> > I check it, decimate, and then a whole slew of UV mapped faces get
>> merged...
>> >
>> > On Mon, Feb 8, 2016 at 9:15 AM, Julio Iglesias <j at zafio.com> wrote:
>> >
>> >> +1 plus "Delimit" options for Collapse mode would be a lifesaver.
>>
>> Yep, would be good to support custom-data checks to delimit seams,
>>
>> Could someone provide a test-case where collapsing UV's gives
>> especially bad problems?
>>
>> >> On Sat, Feb 6, 2016 at 4:38 PM, Zauber Paracelsus <zauber at gridmail.org>
>> >> wrote:
>> >>
>> >> > +1 for this.  I see the problem with both the Collapse and Planar
>> >> > modes.  Planar, however, does have some "Delimit" options that cause
>> it
>> >> > to stop at things such as material boundaries, seams, sharp edges, and
>> >> UVs.
>> >> >
>> >> > On 02/06/2016 09:19 AM, Paweł Łyczkowski wrote:
>> >> > > Hey,
>> >> > >
>> >> > > Problem: The Decimate modifier sometimes creates a very uneven mesh,
>> >> with
>> >> > > some triangles really small and some really big and/or long. This
>> is ok
>> >> > in
>> >> > > certain cases, not ok in others.
>> >> > >
>> >> > > Example: I had cases where I would want to decimate the mesh more,
>> but
>> >> > that
>> >> > > caused big long triangles and ngons in the flat areas.
>> >> > >
>> >> > > Solution: A Uniformity setting would allow to limit the disparity
>> >> between
>> >> > > the triangles the decimate modifier creates. 0 would be the current
>> >> > > behaviour, 1 would create an even mesh, and everything in between a
>> >> > > gradation between those two.
>> >> > >
>> >> > > Best,
>> >> > > Paweł Łyczkowski
>> >> > > _______________________________________________
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>> >> > > Bf-funboard at blender.org
>> >> > > http://lists.blender.org/mailman/listinfo/bf-funboard
>> >> >
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>>
>>
>> --
>> - Campbell
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-- 
- Campbell