Weird animated optfine cape???

[Broken18384]

So this user on namemc has this cape which looks like a minecon cape but the name says it’s an optfine cape does anybody know how to do this / if so could you tell me how?

 

[Broken18384]

I just did more researching and found out the user ‘lifelong’ has the same design.[DOUBLEPOST=1582517420][/DOUBLEPOST]This is closed after doing some researching a user has helped me do it thanks!

 

[ZanePro]

dm me on discord i know how to do it MyMan#6141

 

[Broken18384]

Hello somebody already helped me but thank you so much!

 

[skittles]

Hello somebody already helped me but thank you so much!

Could you refer me to this person? I'd like to know how to do this too!

I got this done with MyMan instead.