[FFmpeg-user] Noise generator for 360° video

[Paul B Mahol]

On Sat, Jul 6, 2024 at 10:54 AM Michael Koch <astroelectronic at t-online.de>
wrote:

> Am 06.07.2024 um 10:44 schrieb Paul B Mahol:
> > On Sat, Jul 6, 2024 at 10:40 AM Michael Koch <
> astroelectronic at t-online.de>
> > wrote:
> >
> >> Does anybody have an idea how to make a noise generator for 360° video?
> >> I mean noise (clouds, waves) that looks similar in all directions of the
> >> sphere. If I use the new "perlin" source for making an equirectangular
> >> video, there are two problems:
> >> 1. The left edge doesn't fit to the right edge.
> >> 2. There are singularities at the poles.
> >>
> >>
> > Sure there is a way.
> > just not using perlin ultra slow filter.
>
> Can you point me to an algorithm? I don't need high speed. Even a very
> slow solution with geq filter would be fine.
>
>
Just pick different spots in 3D-space so that is continuous in 360.

Use your brain to search web.


> Michael
>
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