I create a avatar in CC 3. I purchased Jesus and Disciples from Content Store and put clothes to it.
But here is the result when put some motions to it.
https://www.youtube.com/watch?v=c0_QQstzNdw

What should I do either in CC 3 or iClone to fit the clothes?

When you apply clothing that use cloth dynamic to a different character, you need to also adjust the invisible collision shapes. These are attributes of the inner character, not of the clothing. These collision shapes need to be activated. you can do this in iClone by selecting the base character and then Pressing the collision shape button in the modify panel.

Cheers. 

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Is there any tutorial video for this?

Try the tutorial below. This should help.

https://www.youtube.com/watch?v=eLe-jXjytXI

                                                                

Peter
Forum Administrator

www.reallusion.com