Instant Replay Mod - Possible like WoT or Warthunder?

[inigma]

WoT and Warthunder save their replays so you can play and move your camera around during the replay. Is there a mod in KSP that does this so you can finally get different camera angles on those epic once in a lifetime moments in KSP that you know you will never be able to duplicate in a second take?

[inigma]

Thoughts? Doable? I know DMP does ghosting, but I was wondering if there was actually a possibility of simply recording all events for playback later, so you can fly around and get different angles on the event.

[guitarxe]

There's this http://forum.kerbalspaceprogram.com/threads/49216-0-24-2-Persistent-Trails-record-share-and-replay-track-data!-(Aug-1-V1-1)

[Drew Kerman]

There's this http://forum.kerbalspaceprogram.com/threads/49216-0-24-2-Persistent-Trails-record-share-and-replay-track-data!-(Aug-1-V1-1)

Nope, that's a bugged feature of that mod and even working as intended it wouldn't match what the OP wants.

Inigma: it's been asked before by me and others here in this subforum and no one has taken up the task so far. Would def be nice. Given the cinematic community that exists with this game, frankly I'm surprised a tool like this hasn't been done already. But, mod authors are largely driven by personal needs and so I guess everyone that's needed this so far couldn't make it themselves

[inigma]

Anyone yet?

[Wjolcz]

That's a cool idea. I always thought it should be a thing in stock KSP. Though the lenght of a signle recorded track could be... lenghty.

[Drew Kerman]

Though the lenght of a signle recorded track could be... lenghty.

Not even. We're talking game data here, not encoded video

[Hobbes Novakoff]

Not even. We're talking game data here, not encoded video.

Well, you'd need to basically save an .sfs file (minus tech tree and save game data, obviously, but you would also need to track animations, how far things are into animations, etc.) to RAM about 30 times a second for smooth playback. First off, that's going to probably put a lot of load on the RAM, and it certainly won't happen before we have stable 64bit on all platforms. And saving it to the hard disk would take a while. (I mean, it takes 3 seconds to quicksave, spread that out over 30 per second for several seconds...) The idea is pretty cool, though.

[mythbusters844]

Well, you'd need to basically save an .sfs file (minus tech tree and save game data, obviously, but you would also need to track animations, how far things are into animations, etc.) to RAM about 30 times a second for smooth playback. First off, that's going to probably put a lot of load on the RAM, and it certainly won't happen before we have stable 64bit on all platforms. And saving it to the hard disk would take a while. (I mean, it takes 3 seconds to quicksave, spread that out over 30 per second for several seconds...) The idea is pretty cool, though.

I have no knowledge of coding or KSP's limitations, but it feels like it only has to save the actively loaded crafts and it only has to quicksave when you pause and want to replay something. It would then load that save when you go back to realtime. Obviously this wouldn't allow something like reverting to a specific point in the replay, but it would be good enough.

[Endersmens]

I feel like this could be a feature of persistent trails.

Right now, the mod records a trail that you can replay later. But maybe the recording could always be on, and you can always replay to a certain extent. You could set it to delete the track 30 seconds behind you to keep RAM and CPU down. You could also make that adjustable. you would only need a few seconds of replay for those close calls and such.

[Drew Kerman]

All three of you have the wrong idea. When you start recording, the game state (SFS file) is saved. From that point on, all that is tracked is player input: What part menu actions are activated, what the current pitch/yaw/roll input is, what action groups are activated, etc etc. when you play it back, the mod loads that SFS file and starts streaming the input into the game as if it were the player. Recording inputs multiple times per second is still a paltry amount of data compared to an uncompressed video file. Just look into any "recorded" RTS match if you still don't grasp the concept

[sarbian]

RTS replays don't log the input and replay them, they log the positions. I doubt that replaying input in KSP would lead to the same state after a few seconds.