Blackmagic Forum

I'm experiencing some weirdness with the scaling of splines when I add a Calculation modifier to the Y Rotation property of a B-Spline Mask.

Basically I want it to enter and exit the animation with a fast spin, but I also want its Y angle to oscillate throughout the whole comp, so it's better to keep it on two separate curves that I'm creating on the First and Second Operands.

It's looking fine, but when I go to the Spline Editor, both the First and the Second Operands seem to be rendered on a completely different scale. I believe the 2nd is being multiplied by 1000.

I don't know if I explained it accurately, so I included a couple screenshots. Note the Y axis ticks... Weird, right? Is that a bug or did I do something wrong?

They say, "A picture is worth a thousand words.", but in this case that's not true.
It's the actions that you performed to get that result (hopfully descibed in less than a thousand words), that would be useful in this case.

Maybe the screenshots are too small.

The green curve (First Operand) spans over around 180 to -450 in value.
The pink curve (Second Operand) oscillates between 0 and ~16.5.

And yet, the pink curve is being displayed on the spline editor as much larger than the green one, which is weird and not to scale at all.

I did nothing fancy, it's just a simple keyframe animation on both parameters, with an added ping-pong loop on the pink curve.

I hope that made it easier to understand