script for measuring framerates?

[Ravi Jagannadhan]

Hi all, does anyone have any scripts handy for measuring frame rates (one that's not in the GUI)?

Thank you for your time,

Ravi

--

Where we have strong emotions, we're liable to fool ourselves - Carl Sagan.

[Marcus Ottosson]

Frame rates of what?

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Marcus Ottosson
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[Ravi Jagannadhan]

Sorry, playback in Maya.

"There are no dumb questions" - Carl Sagan.

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[Marcus Ottosson]

Here is one way of doing it.

import time
from maya import OpenMaya as om

time.__previous = time.time()
def callback(*args, **kwargs):
    current = time.time()
    fps = 1 / (current - time.__previous)
    time.__previous = current
    print("%.1f" % fps)  # Show only 1 decimal

job = om.MDGMessage.addTimeChangeCallback(callback, 'transform')

The additions to the time module were to maintain a reference to the previous_time variable, which apparently gets lost in a callback like this.

Output.

28.6
22.2
27.8
22.2
28.6
22.7
27.0
23.3
28.6
22.2
28.6

Alternatively, you could also use a script node, or an expression. Both of which are capable of listening in on timeChanged.

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Marcus Ottosson
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