[Bf-committers] Problem with Lens distortion update

Sergey Sharybin sergey.vfx at gmail.com
Sun May 22 11:34:06 CEST 2016


For the realtime update in clip editor you might want to have a look
into check_undistortion_cache_flags() from movielcip.c. It compares whether
cached frame was post-processed with the same distortion model as the
current one.

But what's the advantage of the new model you're adding?

On Sun, May 22, 2016 at 9:19 AM, Knapp <magick.crow at gmail.com> wrote:

> I don't know the answer to your question but I was working with these two
> parts of Blender. One thing that I learned is that they are completely
> separate because the compositor takes its time to do the math right and
> make a perfect image but the movie editor is programmed to update in real
> time thus they take shortcuts to make it say super fast. Perhaps this will
> give you clues as where to find it?
>
> On Sat, May 21, 2016 at 5:44 AM, Levon <levonh at gmail.com> wrote:
>
> > Ive been playing around with adding a new lens distortion type to
> blender,
> > based off 3dequalizer's default lens distortion model from the Lens
> > Distortion Plugin Kit
> > https://www.3dequalizer.com/?site=tech_docs&id=110216_01
> >
> > I know most of this will probably change with Tianwei's GSOC project, im
> > just playing around with the code.
> >
> > Ive successfully implemented the ldpk_classic_3de_mixed_distortion for
> > undistorting and redistorting the image, but not solving camera
> intrinsics
> > yet.
> >
> > I have one problem, changing the parameters does not update the render
> > undistorted in the movie editor, but works fine in the compositor.
> >
> > I would have thought setting the rna_def_property_update to
> >  'rna_tracking_flushUpdate' would trigger an update, but it doesnt seem
> to
> > be working.
> >
> > Could someone point out where i need to trigger an update when the lens
> > distortion parameters are changed?
> >
> > my diff is here.
> > http://www.pasteall.org/69753/diff
> >
> >
> > Cheers, Levon
> > _______________________________________________
> > Bf-committers mailing list
> > Bf-committers at blender.org
> > https://lists.blender.org/mailman/listinfo/bf-committers
> >
>
>
>
> --
> Douglas E Knapp, MSAOM, LAc.
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>



-- 
With best regards, Sergey Sharybin


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