Vex - matching target position in DOPs

[Juraj]

Hi

I am trying to dive into VEX. And I made up a little assigment for myself - do an assemble effect in DOPs.

However when matching target position and orientation there is a slight offset occuring in orientation. (img_1)

But if I do this position and orientation adjusting (same method) based on simpler rule (frame number) it works as expected. (img_2)

 

Could somebody look into this file and check what may cause this problem?

 

Thanks,

Juraj

project.hipnc

[anim]

matching transforms is not enough, you need to match pivots as well

so just insert this code somewhere after you populate align variable

...
vector pivot = primintrinsic(0, "pivot", @primnum);
vector pivottgt = primintrinsic(1, "pivot", @primnum);
pivot = lerp(pivot, pivottgt, align);
setprimintrinsic(0, "pivot", @primnum, pivot);
...

[Juraj]

Awesome!

Now it works, thank you.

 

However I am not sure I understand this pivot thing. How is intrinsic "packedfulltransform" computed? Is it computed by attribute @P, "transform" intrinsic and "pivot" intrinsic? What role does "pivot" intrinsic play in bullet sim? And why is it changing during simulation? Isn't pivot of transformation encoded into "transform" intrinsic matrix?