Keyframes bug

3D Studio Max Plugin (Export Script Plugins developed by [gk] and KilaD; Integrated Plugin developed by Karba)
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remKa
Licensed Customer
Posts: 300
Joined: Fri Jan 24, 2014 6:23 pm
Location: Paris
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Hello,

When i use auto key with cameras and lights with target I have this really annoying bug : a lot of ghost keyframes are created , please see attachment file :
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Enregistrement de l'écran 2026-03-20 133351.mp4
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AMD 9950x3D / RTX 4090 / RTX 3090 / 192 Go DDR5 / Win 11
http://www.remy-kerbiquet.com
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paride4331
Octane Guru
Posts: 3928
Joined: Fri Sep 18, 2015 7:19 am

Hi remKa,
I can replicate the issue, I sent my report to devs. I believe I’ve identified the cause of the black keyframes that appear on the timeline when using an Octane Camera with Auto Key enabled in 3ds Max. The issue, in my opinion, is related to the Target Distance parameter of the Octane Camera. In standard 3ds Max cameras, the target is a separate object in the scene, and the distance is not exposed as an animatable parameter. In the Octane Camera, however, Target Distance is a custom parameter of the plugin. This means that Auto Key monitors it like any other parameter. When the camera is moved, Target Distance changes automatically (even if the target itself is not being touched), and Auto Key records this variation by creating a keyframe. Even simply scrubbing the timeline without interacting with anything can cause the value to undergo micro fluctuations due to floating-point recalculations enough for Auto Key to interpret them as changes and generate keyframes on every frame that is touched. Temporary workaround: Use Set Key instead of Auto Key. In the Set Key Filter, leave checked only the necessary options, such as Position, Rotation, and Scale. This way, by pressing K, only transformation keyframes are recorded and Target Distance is ignored. If you prefer to continue using Auto Key, open the Curve Editor (Graph Editors > Track View Curve Editor), expand the camera, locate the Target Distance channel, and set it to “locked.”
Regards
Paride
2 x Evga Titan X Hybrid / 3 x Evga RTX 2070 super Hybrid
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remKa
Licensed Customer
Posts: 300
Joined: Fri Jan 24, 2014 6:23 pm
Location: Paris
Contact:

Hello Paride, thanks for the workaround :)

I have this issue with targeted light to, if you can tell them
AMD 9950x3D / RTX 4090 / RTX 3090 / 192 Go DDR5 / Win 11
http://www.remy-kerbiquet.com
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paride4331
Octane Guru
Posts: 3928
Joined: Fri Sep 18, 2015 7:19 am

Hi remKa,
Yes, I'll do, the issue is just like with the camera targeting.
Regards
Paride
2 x Evga Titan X Hybrid / 3 x Evga RTX 2070 super Hybrid
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