https://bugzilla.wikimedia.org/show_bug.cgi?id=54744

--- Comment #16 from Randy Nonenmacher <ranonenmac...@twcny.rr.com> ---
(In reply to comment #15)
> (In reply to comment #14)
> > I've been seeing this problem with indexed PNG files that I've uploaded to
> > wikimedia commons and have created the category:
> > https://commons.wikimedia.org/wiki/Category:Images_that_will_not_render for
> > the
> > problem images.
> > 
> > I created a table on the category page that shows that the maximum 
> > renderable
> > thumbnail width is inversely related to the image size, but also depends on
> > the
> > aspect ratio. The problem starts with very large thumbnails (~1200px wide)
> > for
> > images around 10 Mpx in size, and stops somewhere between 33 and 36 Mpx for
> > thumbnails around 600px wide.  Images larger than that don't seem to have a
> > problem.
> > 
> > Anyway the table and images are there if anyone needs them to debug the
> > problem.
> 
> It should stop precisely at 35 mp. That's when we switch rendering programs

It does. I cropped an image to 5916 × 5916, which made it 34.999 mp. and it
would not render at widths greater than 477px. I re-cropped it to 5917 × 5917
and it rendered fine at 1,024 × 1,024 pixels.

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