What`s causing this ??

Game Engine Game Engine Support and Discussion
1

https://youtu.be/cxiKUfxkROo

This bug constantly happens now and again while running in BGE.
The Rifle is parented to a empty, the empty is parented to my armature hand bone.
There is no collision on rifle, but it gets jumpy. How can i fix this problem.

2

Hi, is “slow parent” activated on an object? http://www.pasteall.org/blend/38966

3

No i checked that. It`s really bugging me lol, that was a bad pun.

4

If you give a .blend, I may find it… Otherwise - no!

5

It can happen if you parent a thing to another thing, that is parented with a bone of an armature. Is it the case?

6

I haven’t seen this effect since 2.38

7

This is just a guess, but it might worth to try:
In the World tab, try to increase Logic steps or or FPS, substeps or some of the other options.

8

I tried, but no luck.
It`s driving me crazy, i might have to upload my .blend it seems.

9

are you using IK or copy rot?

I have had this problem with IK before

also, is everything scaled to 1,1,1 ?

10

There’s an “Extra Object Update” checkbox under Relations Extras, maybe that would help (or maybe not). I’ve had this problem one time before on a very slow computer, to me it occurred while the framerate were very low.

You might want to upload the .blend-file to get this solved quicker.

11

Im uploading the .blend now and will send it too you guys, its driving me nuts.

12
13

Are you using IK or Copy rotation?

I have had this problem before

try switching the solver to Itasc in armature settings (near the bottom)

14

I tried that BPR, but it did nothing i sent you the file.

15

Did you check if you clicked accidentally “slow parenting” button? It seems it might be “slow parenting” feature enabled.

16

Yeah i looked on everything and there turned off. I will have to send you guys the file.

17

Ok send it. It’s probably something stupid and obvious, those kind of bugs are the hardest to find.

18

I tried it in 2.74.5 -> no bug

it seems to be a IK problem introduced after 2.74.5?

I would get 2.75 and see if it has the issue, then if it does, try 2.74.5

and then report your findings to the bug tracker.

2.76(first release) = Bug

also try one of the newest builds off buildbot?

19

Will do BPR. I will tell you if it worked going back a few blends.

20

Yup well done BPR.
Just tried it on 2.75 and what do you know, no problem. I`m reporting it now mate.