ScriptNode External Filter > Floating Tile = flickering display on Windows

ustk

@DanH Have you tried to enable/disable openGL in your export?
Though I don't think it's related but might worth a try...

DanH

@ustk I did, and ipp. No difference. I’m also running a timer to update visual elements and this is also bugging out. I need to make a small project and test, so will report back after I do that.

DanH

Ok I've got somewhere in my testing.

It's definitely something to do with the Global_Mod node in ScriptNode - using the core.oscillator as a modulator produces no buggy behaviour at all.

So it must be something in the output of the global_mode node that's dropping some values (it always seems to snap to the same point - 0?). Perhaps a buffer issue?

I also tried the whole thing in a fix 16 block but made no difference.

As mentioned it seems fine in Ableton / BitWig / Reaper and one user's Cubase. FLStudio, Cubase and Maschine affected so far (on Windows - EDIT - FL on Mac also displaying this behaviour).

Video below: The top filter is a global_mod node connected to a scriptnode filter frequency control. The second filter (Filter1) uses a global cable and a timer (30ms) to get the global_mod value and update the frequency knob. Both the filter display and freq knob get buggy. The bottom filter (Filter2) is a normal Hise filter with a global lfo modulating the frequency. No buggy behaviour. The TIMERTEST knob gets the current level of the Global LFO and sets it's value accordingly via the same timer as filter 2 - again no bugs.

@Christoph-Hart @ustk any ideas? :folded_hands_light_skin_tone:

Also to add - it doesn't seem to affect the sound, the modulation sounds like it's doing he right thing and not bugging out.

ezgif.com-video-to-gif (1).gif

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DanH

@Christoph-Hart friendly bump ! :)

DanH

@Christoph-Hart is there anything else I can test?

DanH

@Christoph-Hart just tested a Script Time Variant Modulator to feed the global_mod node in scriptnode but it makes no difference than using a stock LFO Modulator

Christoph Hart

@DanH This is fixed now. You can reproduce it inside HISE by enabling Tools -> Simulate varying buffer sizes which basically turns HISE into a shitty DAW and randomizes the buffer size on each call (there was also some crackling that is fixed now, so make sure to turn down your speakers before using this tool).

It basically was caused by varying buffer sizes creating a desynchronisation between the buffer read position of the global mod node and the precalculated global modulator buffer, but I've added a sync mechanism (which comes with a slight performance overhead in case of varying buffer sizes).

It was also affecting the audio BTW, but I can imagine that the filter smoothing has dampened that effect.

DanH

@Christoph-Hart ah thank you so much! Will test tomorrow :)

Loving this feature

You can reproduce it inside HISE by enabling Tools -> Simulate varying buffer sizes which basically turns HISE into a shitty DAW

Lindon

@Christoph-Hart said in ScriptNode External Filter > Floating Tile = flickering display on Windows:

@DanH This is fixed now. You can reproduce it inside HISE by enabling Tools -> Simulate varying buffer sizes which basically turns HISE into a shitty DAW and randomizes the buffer size on each call (there was also some crackling that is fixed now, so make sure to turn down your speakers before using this tool).

It basically was caused by varying buffer sizes creating a desynchronisation between the buffer read position of the global mod node and the precalculated global modulator buffer, but I've added a sync mechanism (which comes with a slight performance overhead in case of varying buffer sizes).

It was also affecting the audio BTW, but I can imagine that the filter smoothing has dampened that effect.

is this gonna help with all those FLStudio problems?

Christoph Hart

It won't help with anything (it just simulates how FL Studio behaves so you can reproduce the issue in HISE), but chances are great that if your project doesn't glitch when you turn on this feature then you're on the safe side in FL Studio.

Lindon

@Christoph-Hart actually I meant this;

"I've added a sync mechanism (which comes with a slight performance overhead in case of varying buffer sizes)."

Christoph Hart

If you have been using global mod nodes then yes, it might solve other glitches, otherwise it won't affect the signal flow.

What's your particular FL Studio issue?

Lindon

@Christoph-Hart said in ScriptNode External Filter > Floating Tile = flickering display on Windows:

If you have been using global mod nodes then yes, it might solve other glitches, otherwise it won't affect the signal flow.

What's your particular FL Studio issue?

Oh I dont have a particular FL Studio issue - other than the random buffer sizes making plugins generally unstable ....

DanH

@Christoph-Hart So far so good! :thumbs_up:

DanH

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DanH

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d.healey

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DanH

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ScriptNode External Filter > Floating Tile = flickering display on Windows

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