Hypersonic Flight Recording - No Scram?

[rocketman768]

I recorded a short hypersonic flight of me in the XR1 from Cape Canaveral to Habana. However, during playback, the scram engines don't light up and their throttle levers don't move, and the apparent amount of scram fuel doesn't change. Is this a known thing? Too bad... it was a fairly cool flight

 

[pete.dakota]

Not all ship parameters are recorded. Mainly just the vessel's speed, AOA, position etc. Most animations aren't replicated.

 

[Quick_Nick]

Not all ship parameters are recorded. Mainly just the vessel's speed, AOA, position etc. Most animations aren't replicated.

And indeed thrust and fuel levels are 'faked' in replays. In the actual flight you might finish your flight with fuel to spare, but sometimes the replay may burn your fuel out completely halfway through the flight but still show the thrusters as on whenever they're supposed to be.

 

[Tommy]

Recording events like scram throttle levels, and animations such as Gear position, trim, and flight controls,etc, needs to be handled in the vessels .dll. Orbiter records vessel position and rotation info, and thruster levels for normal engines like Mains, Retro, Hover, and RCS. Scram engines, or any other engine that doesn't behave like a regular rocket engine, aren't directly handled by the Orbiter core so they aren't recorded by the core.

Orbiter allows individual vessels to record any info they need, including animation states, special engine controls, engine gimbaling, even fuel levels. How much is recorded is up to the developer, but recording more increases the amount of code needed. For instance, to record gear status, the vessel needs to save that info during the recording callback, and also deal with this info when it's received during a playback call.

The DG-IV, like many vessels, doesn't record any animation states. The stock DG, and the XR series, record most animation states so gear will retract, aerobrakes will deploy, etc.