I used the apple's crash landing example as base to program some small games for iphone. Now i would like to meassure the frames per second in my games.
I'm curious about how can I calculate the FPS per second, can anyone help me to under开发者_运维问答stand or point me to any way to do It ?.
Thanks.
You need the time the last frame took to draw in milliseconds, the rest is easy: 1.0f/deltaTime
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是否在对方手机上显示已读，是由用户自行设置的。依次打开iPhone的“设置-信息”，会有一个“发送已读回执”的选项。将其打开，对方就能看到你，是否已经阅读了本条iMessage信息。将其关闭，对方就看不到。
微信重新建群怎么开发者_Go百科建？ 产品名称：苹果手机 产品型号：iPhone 11 系统版本：iOS 13
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