[PYTHON]Set Keyframe Slope Type?

[Atom]

Hi All,

I have a script that is setting function types on some keyframes.

I want the keyframe slope to ease in, level off then ease out. After Effects EasyEase style.

It seems that no matter what combination of function types I pass in to my keyframe generator I just can't get the curve shape I want.

Does anyone know how to alter this code to get the channel shape shown in the image?

node = hou.pwd()

def assignKeyframe (passedParm, passedFrame, passedValue, passedFunctionType='bezier()'):
    if passedParm != None:
        setKey = hou.Keyframe()
        setKey.setFrame(passedFrame)
        setKey.setValue(passedValue)
        passedParm.setKeyframe(setKey)
        passedParm.setExpression(passedFunctionType, hou.exprLanguage.Hscript)
        
def keyframeValue ():
    current_control = node.parm('ctl_value')
    current_control.deleteAllKeyframes()
    minimum_sustain = 4
    
    frames = [1,285,296,356,366,428,438,499,509,572,582,643,654,716,727,786]
    for i in range(len(frames)-1):
        frame_start = frames[i]
        frame_end = frames[i+1]-1
        sustain = frame_end-frame_start
        assignKeyframe(current_control, frame_start-int(minimum_sustain/2), 0.0, 'easeout()')
        assignKeyframe(current_control, frame_start, 1.0, 'bezier()')
        assignKeyframe(current_control, frame_end, 1.0, 'bezier()')
        assignKeyframe(current_control, frame_end+int(minimum_sustain/2), 0.0, 'easein()')

 

ap_keyframe_ease_IN_OUT_issue.hiplc

Edited September 1, 2016 by Atom

[edward]

I think you're not setting the slope and accel values for use with the 'bezier()' expressions. Easiest to figure this out is to start a fresh channel on a new node, key it the way you want to look and then run

print node.asCode(save_channels_only=True)