Look At Object Keep Vertical Issue [SOLVED]

[coxy17]

Hi

I have a basic scene setup to explain an issue im having with the 'look at' script, i have tried the original 'look at' and the 'look at 2' scripts. Now i have a scene with 2 players, one faced up and one upside down (rotated 180). Both of them need to follow the player and have the same setup. See attached screenshot.

Now, when i go an run the scene the bottom player instantly flips back to face up in on the World Y axis if i dont check the box 'keep vertical'. If i check this box and it seems to not put the player exactly vertical? it rotates it to a strange angle. Why is this?

Any ideas why it behaves like this? or is it best to restrain the object from rotating other than on the local Y axis? not World axis.

i have recorded a video of what happens.
https://www.dropbox.com/s/rn7v17oqr3bh0am/record.avi?dl=0

Nick

[coxy17]

I've still been looking and i cant seem to find the solution.

[jeanfabre]

Hi,

 You need to define the up vector ( set it to 0,1,0 so that y is the up vector).

There is a sample available on the forum. This may need to be promoted to the Ecosystem

 Have a go at this sample if things still don't work on your end, just to verify.

 Bye,

 Jean

[coxy17]

Hi Jean,

I tried this any it didn't work, if i put in '-1' it works fine. Not sure why?

I have attached another video for you to show you the behaviour with the vector.

https://www.dropbox.com/s/a57c9byisals0jh/record2.avi?dl=0

Nick

[jeanfabre]

Hi,

 Does the example I linked works? You may have fiddle with this up vector so that it works in your case. it's different for every case depending on the mesh shape really.

 Bye,

 Jean

[coxy17]

Hi Jean

Yes that worked great, i didn't realise i had two FSM duplicated so i thought it wasnt working haha. The old test i did was still there and conflicting!

Thanks Jean! you are a great help as usual!