2015 has regressions in a number of areas, that's why I suggest sticking 
with 2014 SP2.  2014 SP2 is much more stable than 2013.

Any time you edit the mesh with the weight editor open, Softimage has to 
evaluate the entire object construction history to see if any changes were 
made to envelope weights, vertex colors, texture UVs, user normals, point 
positions, etc...  That's why it's so slow.

To use an analogy, it's similar in nature to when you're working in the 
windows explorer in a folder that has thousands of files and you want to 
rename one or more of them.  Every little edit you make takes forever 
because the entire folder has to be evaluated to update the display of all 
the icons and selection status.  If you perform the same task from the 
command line, you'll get instant response and none of that extra baggage.

It's the approach you take to the problem, not the speed of the tools.

Matt


Date: Sun, 15 Jul 2018 16:55:08 +0900
From: Martin Yara <furik...@gmail.com>
Subject: Vertex Colors (Weight Editor) in 2015
To: "Official Softimage Users Mailing List.

Hi list

I'm still working here in Softimage 2013 ! This is because Softimage 2015 
new Weight Editor is really slow with Vertices Colors. And it's an old game 
that started before Autodesk killed Softimage.

Doing some tests and playing with all the options I can see I've noticed 
that deactivating the “Filter” (Select Zero Cells Filter Off), it improves 
quite a lot the performance, but it is still way slower than 2013.

These are my results with a polygon mesh with 2400 points. This test consist 
in select all 2400 points from scratch and measure how much does it take to 
be refreshed in the Weight Editor from the moment I end my click to 
Softimage come back to live:

2013: 3 seconds 2015: 1 minute 2015 w/o Filter : 14 seconds

(measured by hand with a phone chronometer)

So, my new “discovery” improves quite a lot the performance, as you can see, 
but it is still super slow.

Is there anyway to get back the 2013 performance ?

This without going into full C++ creating a Weight Editor clone only for 
Vertices Colors and hope that it performs better ? I'm considering that 
option, although I'm not a C++ expert and don't have any guarantee that it 
will work better.

Thanks

Martin 


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