Communication between controller and processor
I am currently discovering the development of VST plugins with the vst3 SDK.
My objective being to make a spectrum analyzer
I have so far managed to use the opengl context to make a simple vu-meter.
My difficulty is to transmit the data from the processing → controller.
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Should I declare and use a Parameter for each of the frequencies to be displayed in the analyzer? (What would be the limit in this case?)
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Should I find another way to access my processor instance from the controller?
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Should I better understand how this function works :
ParameterValueQueue::addPoint(int32 sampleOffset, ParamValue value, int32& index)
I tried to define several points for the same parameter from the function process(…)
But on the side of the controller I retrieve this information as follows:
auto params = controller->getParameterObject(kVuInputLeft);
float value = params->getNormalized();
So I can only retrieve one value (Point).
Could someone enlighten me on the right way to transmit a large amount of information from the process to the controller?