1. collaborative visual audio play duet 2. #assignment

This week, I fixed the bugs of my previous assignments. webcam: add week1 assignment to use webcam https://yn818.itp.io:8040/index.html...

http://104.248.51.221:8000/index.html http://yn818.itp.io:8000/index.html #assignment

http://104.248.51.221:8080/class2/chat.html http://yn818.itp.io:8080/class2/chat.html #assignment

webgl webcam shader webcam can't be loaded under unsecure web http://104.248.51.221:8080/class1/homework/index.html then i changed webcam...