Mr. Fantastic FX?

[Randy Johnson]

yep, is it a “real” arm you want to strech or a cg character?
/randy

[Samuel Graves]

I would prefer real.

[Randy Johnson]

Depending how the arm moves and level of detail its really about compositing.
I actually say the demo reel of a guy who made a couple shots of that arm but I cant find the link now.
Simply put make a fully rigged arm stretch and animate it and composite it over the video. You will need multiple rigs in various length and flexabilty. I suggest a spline IK for the long one and adding alot of stretch in the short one.
good luck,
/randy

[Eric Lagerlof]

I don’t know about the new MOCCA joints, but stretching via IK used to be a matter of adjusting how strongly bones were ‘attached’ to eachother. Also, the density of oyour polys may need to be adjusted depending on what part of the figure is going to be bent and how. Just some thoughts… (I’m still using v.8)

[Randy Johnson]

Yea the joints work that way too. The reason you need more rigs is to get the short radius twisting anywhere in the arm.

/randy

[Eric Lagerlof]

I’d love too see a still of your character in ‘extension’ mode when you get done.

[Samuel Graves]

alright, i will confess!
at the moment i am using a trial version, i know nothing about the controls in c4d.
But, it is a program i intend to purchase in the near future.

any help?

[Randy Johnson]

help with what?

I found a screen shot of an arm I streched a while back when i was learning joints. I couldnt find the working file though. The original rig ended around the elbow in this picture.

https://www.randyarchy.com/cartoonarm.jpg

/randy