This thread explains how it works i believe. You pass a variable for previous frame time, and a variable for current frame time. So when you run the animation, pass the time of the animation and the time - 1 frame and use those as two inputs.
This thread explains how it works i believe. You pass a variable for previous frame time, and a variable for current frame time. So when you run the animation, pass the time of the animation and the time - 1 frame and use those as two inputs.