Added support for the WebGL context option preserveDrawingBuffer. Affects whether or not the contents of the stencil buffer is retained after rendering.
Added support for the WebGL context option preserveDrawingBuffer. Affects whether or not the contents of the stencil buffer is retained after rendering.

tmurph850/pixi.js,cdd/pixi.js,ezshine/pixi.js,mattdesl/pixi.js,Cristy94/pixi.js,fwjlwo/pixi.js,jojuntune/pixi.js,trehnert23/pixi.js,out-of-band/pixi.js,juoni/pixi.js,shabanovd/pixi.js,endel/pixi.js,themoonrat/pixi.js,juoni/pixi.js,bchevalier/pixi.js,ceco-fmedia/pixi.js,NickersF/pixi.js,deepjyotisaran/pixi.js,design1online/pixi.js,falihakz/pixi.js,linkwe/firejs-v2,SpringRoll/pixi.js,drkibitz/pixi.js,red2901/pixi.js,sfinktah/pixi.js,photonstorm/pixi.js,sanyaade-teachings/pixi.js,DarkEngineer/pixi.js,ceco-fmedia/pixi.js,GaryTsang/pixi.js,bma73/pixi.js,webdev1001/pixi.js,nabettu/pixi.js,bdero/pixi.js,woshiniuren/pixi.js,finscn/pixi.js,elmoeleven/pixi.js,Makio64/pixi.js,mbrukman/pixi.js,curtiszimmerman/pixi.js,ta9mi/pixi.js,staff0rd/pixi.js,cjgammon/pixi-nano.js,jojuntune/pixi.js,grepman/pixi.js,andrew168/pixi.js,GreyRook/pixi.js,NikkiKoole/pixi.js,curtiszimmerman/pixi.js,englercj/pixi.js,englercj/pixi.js,Makio64/pixi.js,serprex/pixi.js,jpweeks/pixi.js,linkwe/pixi.js,mjhasbach/pixi.js,snamoah/pixi.js,sfinktah/pixi.js,CozartKevin/pixi.js,TrevorSayre/pixi.js,j27cai/pixi.js,lucap86/pixi.js,sokeroner/pixi.js,leonardo-silva/pixi.js,hgl888/pixi.js,gamingrealms/pixi-v2.js,singuerinc/pixi.js,gamingrealms/pixi-v2.js,drkibitz/pixi.js,xushuwei202/pixi.js,GHackAnonymous/pixi.js,tmurph850/pixi.js,GamaLabs/pixi.js,twhitbeck/pixi.js,cc272309126/pixi.js,taires/pixi.js,tobireif/pixi.js,LibertyGlobal/pixi.js,srbala/pixi.js,SUNFOXGames/pixi.js,staff0rd/pixi.js,finscn/pixi.js,youanden/pixi.js,GoodBoyDigital/pixi.js,Boycce/pixi.js,Mgonand/pixi.js,ivanpopelyshev/pixi.js,keppla/pixi.js,adelciotto/pixi.js,pixijs/pixi.js,wayfu/pixi.js,linkwe/firejs-v2,uken/pixi.js,themoonrat/pixi.js,bma73/pixi.js,naranjamecanica/pixi.js,TannerRogalsky/pixi.js,linkwe/pixi.js,pixijs/pixi.js,ivanpopelyshev/pixi.js,NickersF/pixi.js,uken/pixi.js,GreyRook/pixi.js,holmberd/pixi.js,Cristy94/pixi.js,hellopath/pixi.js,aschampion/pixi.js,out-of-band/pixi.js,gitkiselev/pixi.js,lucap86/pixi.js,aschampion/pixi.js,marekventur/pixi.js,gameofbombs/pixi.js,jpweeks/pixi.js,vundev/pixi.js,DNESS/pixi.js,feirlau/pixi.js