D3DXCreateKeyframedAnimationSet函数参数问题。

C/C++ code

HRESULT  D3DXCreateKeyframedAnimationSet(  __in   LPCSTR pName,  __in   DOUBLE TicksPerSecond,  __in   D3DXPLAYBACK_TYPE Playback,  __in   UINT NumAnimations,  __in   UINT NumCallbackKeys,  __in   const LPD3DXKEY_CALLBACK *pCallKeys,  __out  LPD3DXKEYFRAMEDANIMATIONSET *ppAnimationSet);

TicksPerSecond这个是什么意思？？

[解决办法]
TicksPerSecond 一秒钟播放多少个关键帧