CGTalk - LINK const. SLOW MAX

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CiF

01-25-2003, 04:29 AM

HI,

I'm wondering if somebody know why this happen :

I animate a character, he's holding an object. Then he drop it, then hold it again, and finally drop it.

for that I use the link constraint, wich is very convinient. I just have to say max wich target (hand or world in my case) at wich frame.

The problem is that each time I add a target, Max slow down !!!
not just when I add it, for exemple on the last drop of the object at frame 100, everything is going to be slow after this frame. really slow !!!

after the first target it was ok, (hand)
after the second its slow (world)
after the third really slow (hand)
after the last, (world)
....IMPOSSIBLE TO ANIMATE !!!

Damn even if I hide the object its the same. I can only delete it to get normal speed back .

PLeazzzz help !!

Aaron Moore

01-25-2003, 05:08 AM

Hmm could you reproduce that example with some simple objects? If you can, post the file or send me a copy so I can take a look...

CiF

01-25-2003, 05:08 AM

I try to do the same with 2 cubes .... and there is no pb :(

I try with another character setup (IK JOE) .. no pb :(

So I guess it's my character :(

I delete the mesh to keep just the bones and rig controlers ...
it slow down!!!

If someone want to help me, I can send the bones rigged with the problem ....

Pleaazzz help

CiF

01-25-2003, 05:09 AM

Aaron Moore thanks

when I start to reply your post wasn't there ...

So I send you the file

CiF

01-25-2003, 05:29 AM

aaron, watch your PM plizzzz

Aaron Moore

01-25-2003, 09:05 AM

got the file... give me tomorrow to take a look.. its getting late for me here.. 2am ish

Will let u know if I find an answer...

Aaron Moore

01-28-2003, 06:29 AM

Woah! ok I did several test, and max seems VERY unstable when using this with the setup you have... I did some other simple tests wihtout a bone based hirearchy and there was no problem... I'll give more details tomorrow cuz i need to jet right now...

I see if I can find a solution l8r...

CiF

01-28-2003, 07:16 AM

thanks aaron ...

I did those kind of test too ... but I can't figure out what's wrong with the character setup :annoyed:

hope you will find out !!!

if anyone want to give it a try .... I post the file :

maxfile 53kb (http://www3.sympatico.ca/medved/CiF/linkpb.zip)

if get the file : try to play in viewport, then delete the box and play again !!!

LFShade

01-28-2003, 05:28 PM

I got huge speed gains by removing the stretchy splineIK portion of the rig. I think that's what's really killing the speed of your scene, even though the link constraint appears to be the culprit. SplineIK is notoriously slow in Max, and when you throw in all those script controllers for the stretch you're just asking for a hard time animating.

I do like splineIK as a concept, and I think the stretchy spine scripts are cool, but I just don't think these features are stable and fast enough in Max to make them as useable as one might like them to be

Anyway, those are my findings. Sorry this setup isn't working out very well for you :cry:

CiF

01-28-2003, 06:12 PM

thanks LFshade !!!!

thanks for your time ...

One question ... I try to do the same with the tutorial model wich have the same rig, and it works fine :buttrock:

I don't know what's the problem !!!!

have you try with the tut model ?

cometRigTut_RigFINAL.max

DIMO

01-30-2003, 07:46 AM

HI,
I am experiencing just the same here. I have a character rigged with a splineIk Tail and some stretchy scripts. No skinning just low poly segmented character and some bones and it is soooo slow.

If I had more than one character in the scene, It would be impossible to animate at all.

That's really annoying

Aaron Moore

01-30-2003, 08:57 AM

Make sure u are using the HI solver and not the HD if u can...:shrug:

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