zmovie errors

hippieboy42 · Post by **hippieboy42** » Mon Jun 11, 2007 10:26 pm

I was making a movie for Zelda 3. Doing quite awesome, actually, a no-damage run. Lotsa fun, and seriously difficult...
By a little trial and error, I discovered that movies are based purely on keystrokes and keystrokes only. For a complex game like Zelda 3, with the AIs and random variables and such, the playback looks NOTHING like the original. I thought it would be relatively simple to isolate the variables in the game, and save the changes in those instead. If there is no immediate fix for my problem, I would love to see this as an improvement to the next version.

creaothceann · Post by **creaothceann** » Mon Jun 11, 2007 11:17 pm

Start the game from reset & with an empty SRAM. The game's randomness generator will then produce the same values for recording and playback.

http://tasvideos.org/LuckManipulation.html

hippieboy42 · Post by **hippieboy42** » Mon Jun 11, 2007 11:26 pm

.....
So, essentially reset the game and play it? Or just close Zsnes first?
Thanks, I'll try that. I was looking for Snes9x and seeing if theirs would work better. It's sacrelige, I know.

creaothceann · Post by **creaothceann** » Mon Jun 11, 2007 11:38 pm

Nah, it's not.

You need to select "record from: power + sram clear".

hippieboy42 · Post by **hippieboy42** » Mon Jun 11, 2007 11:42 pm

Yeah, I realized what you meant right after I sent that reply. Probably need to reload the rom to play anyway, and I will even if I don't. Thanks a lot.
Oh, and it works beautifully with Snes9x. So it is good for something...

creaothceann · Post by **creaothceann** » Mon Jun 11, 2007 11:50 pm

The "power" in the caption means that the ROM and the virtual SNES is completely resetted, so there's no need to reload.

Macai · Post by **Macai** » Fri Jul 13, 2007 10:34 am

I tried something similar, except I used the game Mortal Kombat 3 Ultimate. However, even when following your instructions, things often did have unpredictable results anyway.

Is this an error in the ROM itself, or zSNES? Are there additional settings you might suggest I tamper with in order to accomplish a truly perfect re-rendering of what I recorded?

Thank you for your time.

Post by **Nach** » Fri Jul 13, 2007 12:25 pm

ZSNES at the moment doesn't have 100% deterministic emulation, so a movie (or netplay for that matter), depending on how the game interacts with the SNES can desync here and there even on the same version and everything.

We're working on fixing this though.

Macai · Post by **Macai** » Tue Jul 17, 2007 11:41 am

Nach wrote:ZSNES at the moment doesn't have 100% deterministic emulation, so a movie (or netplay for that matter), depending on how the game interacts with the SNES can desync here and there even on the same version and everything.

We're working on fixing this though.

Sounds like it could be a pain. I made a stab of a guess about this in another thread (that guess being it had something to do with different threads in zSNES itself desyncing with each other), but I was wrong.