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BlueprintAPI > BlueprintAPI/Utilities > BlueprintAPI/Utilities/Struct
Adds a node that create a 'Take Recorder Hitch Protection Parameters' from its members
Inputs
| Type | Name | Description |
|---|---|---|
| boolean | Enable Hitch Protection | Attempt to prevent hitches in recorded data. If a frame were to be dropped, Take Recorder will instead slow its evaluation and attempt tocatch up. This is achieved by using a fixed delta time time-step, which will use the FPS value set in Take Recorder. |
| real | Regression Buffer Size In Seconds | Determines the number of frames in the buffer used by linear regression.The final number of frames is FPS * RegressionBufferSizeInSeconds.Without hitch protection, each frame is marked with the timecode reported by UTimecodeProvider; when a hitch occurs, the timecode hitches bythe same amount.With hitch protection is enabled, the engine is set up with a fixed delta time step. Every frame, the timecode is sampled from the timecodeprovider, stamped with the current physical time, and placed in the buffer. When frame n takes longer to evaluate than expected ("hitches"), thephyiscal time will have moved by a certain amount but the world's simulation time will have remained the same (as simulation time advances onlywhen the engine ticks). Then, frame n+1 uses the world's simulation time to perform linear regression on what the frame's timecode should be. |
| softclass | Custom Timestep | The custom engine timestep class to use. Allows you to customize the behavior. |
| real | Max Catchup Seconds | Maximum allowed delay when Take Recorder is attempting to catch up during protection.If Take Recorder falls behind further than this value, it will not accrue additional delay and will drop frames. The result is that the nextframe immediately jumps to the target timecode in order to attempt to catch up.Larger values will allow for jumps in timecode in the final data but will also result in possible larger delays in evaluation. |
Outputs
| Type | Name | Description |
|---|---|---|
| struct | Take Recorder Hitch Protection Parameters |