fix getting viewMatrix from camera
fix getting viewMatrix from camera

nizihabi/engine,maxwellalive/engine,RainsSoft/engine,shinate/engine,3DGEOM/engine,aidinabedi/playcanvas-engine,sanyaade-teachings/engine,RainsSoft/engine,maxwellalive/engine,nizihabi/engine,guycalledfrank/engine,sanyaade-teachings/engine,horryq/engine-1,maxwellalive/engine,sanyaade-teachings/engine,H1Gdev/engine,aidinabedi/playcanvas-engine,guycalledfrank/engine,nizihabi/engine,H1Gdev/engine,shinate/engine,SuperStarPL/engine,SuperStarPL/engine,MicroWorldwide/PlayCanvas,sereepap2029/playcanvas,shinate/engine,sereepap2029/playcanvas,SuperStarPL/engine,sereepap2029/playcanvas,playcanvas/engine,3DGEOM/engine,horryq/engine-1,horryq/engine-1,playcanvas/engine,3DGEOM/engine,RainsSoft/engine,MicroWorldwide/PlayCanvas