Hey all,
Reviving an old thread here.. but was there any more information on this
problem?
I'm encountering exactly the same issue in Maya 2024/2025.
Thanks,
Jake
On Friday, 10 March 2023 at 23:25:48 UTC mattschiller wrote:
> I am seeing extreme slow downs when getting/setting weights using point
> indexes in Maya 2023. Especially on getting, 100x slow downs. Using iomode
> improves setting weight speeds to close to 2022 speeds but does not help
> getting. Using open maya gets around this problem in 2023 but open maya and
> setAttr, used in this way, was the same speed in 2022 and below.
>
> In this example, getting the weights takes in the hundredths of second in
> 2022 and 3-5 seconds in 2023. Any one have a clue? Affects all updates of
> 2023.
>
> import maya.cmds as mc
> import time
>
> mc.dgcontrol(iomode=True)
>
> # Build a 30K point plane and cluster
> geo = mc.polyPlane(sx=100, sy=300)[0]
> cluster = mc.cluster(geo)[0]
>
> # Weights
> pnt_count = mc.polyEvaluate(geo, v=1)
> weight_attr = f"{cluster}.wl[0].w[0:{pnt_count-1}]"
>
> # Get weights
> start_time = time.time()
> weight_array = mc.getAttr(weight_attr)
> print('GET Weights Time', time.time() - start_time)
>
> # Set weights
> start_time = time.time()
> mc.setAttr(weight_attr, *weight_array)
> print('SET Weights Time', time.time() - start_time)
>
> mc.dgcontrol(iomode=False)
>
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