Troubleshooting

in this section we will cover troubleshooting topics related to the scenario system definitions before beginning to troubleshoot, it's important to understand the different symptoms that can be present, the animated gifs below are used to represent them visually noise/jitter noise or "jitter" is best described as a high frequency vibration in the camera tracking key points can be present both when the camera is stationary or moving more noticable when augmented graphics are close to the camera or zoomed into sliding sliding describes the drifting or sliding of augmented graphics relative to the real world feature or object they are assumed to be relative too it can be caused by multiple, different issues and as a result can be the hardest to isolate the underlying cause key points is typically caused by the camera tracking tracking information giving incorrect positional data for the camera, relative to the environment sliding will be more pronounced when moving the camera further from the zero point of the world alignment stutter occasional hops or artifacts seen only when moving the camera it is nearly always caused by issues with synchronisation or timing, where either the tracking data is not processed or provided in time, or the rendererer is unable to draw a frame in time key points can only be observed when the camera tracking data is changing, such as during movement of zooming will typically be intermittant and happen at random unlike noise which will be progressive in nature delay delay issues appear as cg graphics moving either before or after the camera moves it's typically straightforward to identify and resolve key points most easily identified by making short sharp movements camera tracking data can either be behind or ahead of the camera frame depending on the configuration of the video path