hi i am creating racing game and have this two question: 1: want to make cubemap for reflection dynacmially . Shloud i update my cubemap face Frame wise or disatnce/Time wise is there any idea how NFS achevie effect this bcoz in mine process frame drop some time about 5-8 frames. 2: How i can make motion blur like NFS i made using inverted DOF but this one is also drop my frame rate to 15-20 frames . Any Idea. Thanks in advance.