VST3 Does Not Scale Correctly In Some Linux Hosts

[astriiddev]

Some Linux DAWs/hosts, such as Renoise, handle VST3 scaling differently, causing JUCE plugins to render cropped; especially on high DPI screens.

A quick fix is to add something like

void setScaleFactor(float /* scale */) override { juce::AudioProcessorEditor::setScaleFactor(1.0f); }

to your ProcessorEditor, in this case in the JC303Editor class in the amadeusp/Gui.h file.

This forces the plugin to render at the correct 1.0 scale across all hosts.

A more complete fix is to implement a user-selectable scaling, such as through a drop-down menu, that gets stored into a ValueTree and stored in the AudioProcessorValueTreeState

[midilab]

Hi @astriiddev ,

Thank you for notice and report back, it will be fixed over the next release.

Did you had any trouble with scale 1.0 with your current resolution? and what is that resolution?

[astriiddev]

Hi @midilab thank you for your response. The resolution of my display is 3840x2160 with a display scale of 200%.

In my cloned repo of JC303, I used a scale of 2.0, rather than 1.0, as 1.0 was still small for me.

A user-selectable scale would probably be the best fix, but a hard coded value, such as 1.0 or 2.0 would still allow for a consistent experience for users while fixing this issue.