GP2 Forum

Hi all, I've noticed a problem appear on a handful of occasions and I'm wondering if anyone can shed some light on it.

During the race a driver will go off the track and I'll turn on the replay for it, but during the replay the driver manages to stay on the track and carry on, then when I go back to race footage the driver will still be on track as if nothing happened.

Does anyone know why this happens? It's not hugely often but when I'm recording a league race and it happens I have to either redo the entire race or edit the footage later to skip it out altogether.

Weird - never seen that before. I did have an issue a few weeks ago when gp2 actually crashed to dos when watching a replay at Michael82's Monaco. Do you have any replay mods installed?

I don't have any replay mods installed, but it's not the first time I've seen it happen. I've tried to work out what is causing it but no luck.

I have uploaded a clip of the issue to YouTube, so you know exactly what the issue is.

https://www.youtube.com/watch?v=4DchT2Qbd-I

That's the old replay bug. It is not very common, but it can ruin a race when it happens (for instance, if it is the other way around, causing an accident that didn't happen before the replay). It has something to do with GP2 actually re-running the simulation in the replay, but getting its random generated numbers confused.

rremedio wrote: ↑

12.12.2024, 16:42

That's the old replay bug. It is not very common, but it can ruin a race when it happens (for instance, if it is the other way around, causing an accident that didn't happen before the replay). It has something to do with GP2 actually re-running the simulation in the replay, but getting its random generated numbers confused.

This brings up a good question:

We previously documented that gp2 has issues truely making sessions "random" - this is why we do the quickrace and exit trick.

Can we purposely force a random number to change to make this happen on purpose? I mean I'm sure it's possible to modify what is in memory..

samsepi0l wrote: ↑

13.12.2024, 02:45

rremedio wrote: ↑

12.12.2024, 16:42

That's the old replay bug. It is not very common, but it can ruin a race when it happens (for instance, if it is the other way around, causing an accident that didn't happen before the replay). It has something to do with GP2 actually re-running the simulation in the replay, but getting its random generated numbers confused.

This brings up a good question:

We previously documented that gp2 has issues truely making sessions "random" - this is why we do the quickrace and exit trick.

Can we purposely force a random number to change to make this happen on purpose? I mean I'm sure it's possible to modify what is in memory..

I've never found (or tried to find) where in the memory the random number related addresses are. When you mean "make this happen on purpose" do you mean the bug or automatically do the quickrace exit trick? If it is for the bug I'm pretty sure that's possible and it would indeed cause the bug. If it is for the trick, I think simply replacing the random number would not be desirable for the reasons René explained in the thread where he explained how it works, but advancing the sequence by another random number of times should be possible and it would do the trick.