The identity of a slider object is the object itself. Have a look at the docs for viz.SLIDER_EVENT, it explains how to determine which slider has changed. You can also use
vizact.onslider for setting up callbacks for individual slider changes. Here is some sample code:
Code:
import viz
viz.go()
slider1 = viz.addSlider(pos=(0.5,0.1,0))
slider2 = viz.addSlider(pos=(0.5,0.2,0))
def Slider1Change(pos):
print 'Slider 1 pos',pos
vizact.onslider(slider1,Slider1Change)
def Slider2Change(pos):
print 'Slider 2 pos',pos
vizact.onslider(slider2,Slider2Change)