Trigger Render Call through OpenFX


Hi everyone,

I am looking for way to trigger a (host) Render Call from within an OpenFX plugin.

The idea is that I change some parameters externally that are stored in a file.
I want the host to render the image whenever this external data has changed.

As far as I can see the image only renders when there is input on the host.

Any ideas? Thanks in advance!
Cheers, Manu

Open seperate openGL Context with OpenFx
(Frédéric Devernay) #2

There is no way to do so, because the host is responsible for calling actions. The only solution is to have a “refresh” button in the openfx plugin that checks the file, and if the file has changed it triggers another parameter (eg a button) that triggers a render (evaluateonchange = true)