[Bf-committers] [Bf-Committers] [GSoC] Project P-BVH enhanced vertex painting

[Antony Riakiotakis]

Jacob, since you are not mentoring any students, and in fact not coding for
our C codebase, I would strongly suggest you refrain from giving feedback
and asking questions in the GSOC threads. In fact your attitude is -very-
close to spamming. Please stop.

Nathan, I would be glad to review any proposals you make. Note that we do
have a PBVH system in blender sculpting already and ideally we would like
to reuse some code and even allow vertex painting and/or sculpting at the
same time. There are some complications since our vertex painting code is
polygon based and sculpting is vertex based, but hopefully we can adapt the
code to handle both.


On 16 March 2016 at 07:39, Jacob Merrill <blueprintrandom1 at gmail.com> wrote:

> here is the mouse over magic to get the correct projection to cast the ray
>
>
> https://github.com/jesterKing/blender/blob/master/blender/release/scripts/templates_py/operator_modal_view3d_raycast.py
>
> Note* this is not the BVH flavored ray - it's just a example of the math to
> cast the ray youll need to cast inside the BVHTree
> instead *
>
> On Tue, Mar 15, 2016 at 10:25 PM, Jacob Merrill <
> blueprintrandom1 at gmail.com>
> wrote:
>
> > https://www.youtube.com/watch?v=K-MLpEmVgT8
> >
> > I build the tree on init -> then I use a hitpoint provided by the game
> > engine physics, but I think you will want to use the camera projection
> and
> > the mouse x,y to build the raycast, from there you can get all units in a
> > radius, you can then get the distance from the hitpoint to do the color
> > based on a multiplier
> >
> > https://www.youtube.com/watch?v=K-MLpEmVgT8
> >
> >
> > On Tue, Mar 15, 2016 at 10:20 PM, Jacob Merrill <
> > blueprintrandom1 at gmail.com> wrote:
> >
> >> I have used bvh accelerated raycast via Python to do fx in game in the
> >> game engine, and I have also used kdtree,
> >>
> >> It's fairly simple, and a great idea, would it be in Python, or C etc?
> If
> >> it is python I can help with that.
> >> On Mar 15, 2016 10:16 PM, "Nathan Vollmer" <bitinat2 at isu.edu> wrote:
> >>
> >>> Hi everyone!
> >>>
> >>> My name's Nate Vollmer, and I'm a student at Idaho State University
> >>> interested in computer graphics. (One of my projects last semester:
> >>> http://www2.cose.isu.edu/~bitinat2/RayTracer/)
> >>>
> >>> I've written a draft for Blender's GSoC realizing the BVH vertex/weight
> >>> suggested idea, and was wondering if I could get some feedback/tips on
> my
> >>> proposal. Vertex painting is a very important feature for character
> >>> riggers, and I'd like to make it as convenient and efficient as
> possible.
> >>>
> >>> I appreciate all the help!
> >>> -NateVB
> >>> _______________________________________________
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> >>> http://lists.blender.org/mailman/listinfo/bf-committers
> >>>
> >>
> >
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