Oh, yes, you are quite right!
The following seems to work, but it is late and I've only tested on the
'size' knob of a Blur with a few contrived keyframes..
def clear_flat(knob):
if not knob.isAnimated(): return
if knob.hasExpression(): return
key_values = [a.y for a in knob.animation(0).keys()]
if len(key_values) < 2:
# 0 or 1 keys can just be cleared
knob.clearAnimated()
elif sum([abs(key_values[0] - a) for a in key_values]) > 1e-5:
# Keys change over time
return
else:
# Animated flag can be cleared
knob.clearAnimated()
clear_flat(nuke.selectedNode()['size'])
On 04/03/16 23:32, Elias Ericsson Rydberg wrote:
If I remember my math correctly the curve should always be flat when the
derivative is 0? If the value is constantly increasing, the derivative
would always be a positive number. Checking for the delta in Y-position
is the same thing as finding the derivative, isn't it?
Cheers,
Elias Ericsson Rydberg
2016-03-04 13:45 GMT+01:00 Ben Dickson <[email protected]
<mailto:[email protected]>>:
In a Python script you could just loop over each knob's .animation()
curves, check if all the .y values are the same - if so, clear the
animation and replace it with a static value. I think checking for
zero derivative is incorrect, as that could still require keyframes
(i.e a constantly increasing value - different to a constant value
but would have same derivative)
On 04/03/16 23:07, Elias Ericsson Rydberg wrote:
Maybe you could loop through each animation curve and check it the
derivative of said curve is anything different than 0 then it
shouldn't
be marked for deletion (or all values except for frame is deleted).
Haven't tried it myself, but that's one method.
Cheers,
Elias Ericsson Rydberg
fredag 4 mars 2016 skrev Darren Coombes <[email protected]
<mailto:[email protected]>
<mailto:[email protected] <mailto:[email protected]>>>:
Anyone know how you'd write a menu item to remove all flat
animation
curves from a camera for example??
This way, only curves that are animated show up in curve
editor?
*
*Thanks.*
*Darren Coombes*
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<http://www.vimeo.com/darrencoombes>*
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