Jean,

This sounds like an incredible project. Will need to try it out.

Thanks for the heads up!

--
Nuno Santos

No dia 15/08/2024, às 16:01, Jean-Michaël Celerier <jeanmichael.celer...@gmail.com> escreveu:


I've done it in https://ossia.io using QRhi, to have multiple pipelines of shaders applying subsequently - works fine for e.g. video art needs.


On Thu, Aug 15, 2024 at 4:38 AM Nuno Santos via Interest <interest@qt-project.org> wrote:
Hi,

I’m looking to create a pipeline of video processing with C++ only.

I want for instance to create render a video, then an apply a blur effect, followed by a tilt effect, followed by hue shift effect, and so on.

I also want to be able to switch the order of the effects.

I know this is possible to make using Qml but I want to have more low level and dynamic control and be able to do this from C++. Is this even possible using Qt only?

I believe a single QQuickItem is able to render source but in order to process is I need to be able to pass the output of that quick item to another quick item which will apply the effect on it.

This was the strategy used in a higher level from the Qml side using the multi effect source. Isn’t that correct? But is this possible to do with Qt 6 and C++ only? Is there any API I should be aware of?

Please advise.

Thanks in advance.

With my best regards,

Nuno
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