How to prevent CFrames from going NAN

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#21

Can you try orthonormalizing RealCFrame in this loop?

#22

I do not know what that is. How would I do that?

#23

The line would be

self.RealCFrame = self.RealCFrame:Orthonormalize()

I’m not too keen on the where it should be in the loop, so some experimentation might be needed. Maybe after the increment?

3 Likes
#25

If orthonormalizing doesn’t work, is there any chance keyframe.Length is 0? Dividing by 0 will give you nan

1 Like
#26

WOW, I think it works! I’m totally unsure how it works, but it’s not glitchy at ALL now, I will do some more testing on it.

And, it doesn’t go nan, or explode.

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#27

I manually set those parameters, for the animation. I would definitely know if it’s 0.

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#28

It returns a copy of the CFrame whose rotation matrix vectors are unit vectors (divided by their own magnitude (length of 1)) and orthographic. A CFrame is not really valid unless the rotation matrix is comprised of unit vectors that are orthographic, it can lead to issues like inverted backfaces if used on a part, skewing if used on the camera, or nan as you were experiencing when doing calculations using them

2 Likes
#29

Question, does this change the magnitude of the CFrame I use it on? Does it affect it in some weird way?

These are my cframes now. Looking clean. I want to mark you as a solution but I want to be SURE that everything works so I don’t have to waste my time making a duplicate post.

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#30

So it would be the exact same cframe but represented in a different way? Got it.

#31

For the most part it is the same CFrame, but it’s a “normalized”/“validated” copy (for exact details see the gram-schmidt process) so it won’t be exactly equal in the case of calling it on an invalid CFrame, which is why you were seeing the length of the vectors change

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#32

I wouldn’t say it has an effect on the magnitude of the CFrame. @7z99 gave great information on this. Orthonormalizing can only help you in this case.

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#33

Thank you very much for this. I finally got an answer.

#34

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