I want to make a visual effect, let the picture or gif on the plugin change according to the different values of the knob or slider, is there any way to achieve this effect?
Check out the sliders example from
That uses a custom slider thumb. Also check out
Examples->Misc->KnobManSlider2 wchih crops an image in realtime to show only a portion of it. The first two methods are quicker. An example of how well this approach can work can be seen in @gerbo’s latest plugin https://gbsoundlab.com/sweetpressor/
great！thats exactly what i want！thx rory
It is very comfortable and you can transform a slider into anything.
The genius of @rorywalsh