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. Most of the code is in there if that can be useful: https://github.com/ossia/score/tree/master/src/plugins/score-plugin-gfx/Gfx/Graph
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 > _______________________________________________ > Interest mailing list > Interest@qt-project.org > https://lists.qt-project.org/listinfo/interest >
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