By moving the texture coordinates in one direction, the smoke is made to look like it is moving in the opposite direction.
通过向一个方向移动纹理坐标，烟雾就看起来向相反的方向移动。
Although the particles are animating (moving away from the source), added detail is gained by animating the texture coordinates used to calculate the lookup in the the noise volume texture.
尽管粒子是动态的(从原点移开)，但额外的细节是由动态计算纹理坐标来表现体积纹理的不规则表现而产生的。
The angle control formula of the camera & pan-tilt-device system is educed with its vision coordinates, which provides theory basis for moving vehicle tracking.
通过摄像机-云台系统所采用的视觉坐标系，推导出了摄像机-云台系统转动的角度控制公式，为运动车辆的跟踪提供了理论基础。
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