[Soc-2017-dev] Weekly Report #07 - Vertex Painting Improvement.

[Erick Blender]

Hey guys,
Can you please check this 2 branches (win64) and compare the speed?
https://drive.google.com/drive/folde...0E?usp=sharing
<https://drive.google.com/drive/folders/0B62B6BmVbltVb0cyQS1TekNZZ0E?usp=sharing>

I don't want to rush into conclusion but i have the impression that
Gsoc_2017 is really slow compare to Gsoc_2016. If it is so, may be it will
be better to sort out what is the cause. Howardt and Darshan please have a
look.

I posted a copy to the BA thread as well

On Fri, Jul 14, 2017 at 9:36 PM, Darshan kadu <darsh7807 at gmail.com> wrote:

> Hello everyone,
>
> Here are the updates of the seventh week.
>
> *What I did this week:*
>
> This week I continued my work on vertex alpha.
>
>  In last week's code for the alpha channel, there was a problem that it
> was not setting the alpha value properly to all the vertices. It was due to
> the fac that goes into the mcol functions, if fac was out of range that is(
> 0,255) then alpha was not set. I changed it, so that vertex has the alpha
> value defined by the used irrespective of the fac value.
>
> I completed the ply exporter. It was taking the vertex color information
> from the Mcol,
> but it was limited to 3 colors i.e RGB, so I extended the corresponding
> RNA so that now it is possible to access the alpha from the ply exporter.
> Hence, once I got the access to the alpha I just append it to the RGB in
> the ply exporter.
>
> The next task was fbx exporter. I took me some time to understand it, as
> it is in python. There was an addon created for it by the artists
> https://forum.unity3d.com/threads/vertex-rgba-blender-2-5x.254038/
> The current fbx exporter was setting the alpha to 1 by default. I replaced
> it with the alpha value from mloopcol. It is working well as tested on
> unity with c# script.
>
> I faced the problem to commit the code in the addon folder.  So, I moved
> the modified addon files into the startup folder and then commit the code.
> This is the temporary solution as the add-ons have the separate repository.
>
> Next, I did Collada exporter. I was simple. I extended the current code
> for alpha.
>
> Then, I started the task of showing the alpha in the 3d view. I have made
> the preliminary changes to it. It is working for basic cases still, have to
> make many changes to.
>
> *What I plan to do next:*
>
> I will complete the task of the alpha in 3d view, it is lacking for the
> cases like mesh subdivide, face selection etc.
>
> I am getting the feedback on the blender artist thread about the vertex
> alpha e.g. setting the alpha value. I will solve this problem.
>
> Thank you.
>
>
>
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>
>
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