Glitches in animation

[basicNew]

We are currently animating a scene by updating the poses of the elements in it. This looks good in a broad view, but when zooming very close to a car you can see the "steps" it performs (like if it lagged for some frames and all of a sudden jumped ahead). Things tested:

• We first thought this may be because of scene load, but it wasn't. We can reproduce this with one moving rectangle.
• Another option was the callback not being triggered or the buffer not being written. As far as we could test and log, callback was being called @ 60 FPS, the scene was rendered in time and the buffers were being flushed correctly.