Arcade Racing Legends Review! First footage of final version.

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qupe75
photon blast
Posts: 104
Dreamcast Games you play Online: Unfortunately none at the minute.

Re: Arcade Racing Legends Review! First footage of final version.

Post by qupe75 »

Ian Micheal wrote:Game sounds like it is using timing from the disk prolly why they did not want to do a digital download as it does not work correct with out proper disk timing... since it's streaming data and the code sound like it has fixed time to load parts of the data from the 12x speed gdrom ..

Any faster and you get these problems.. this also happens on something i have done homebrew as i code it for the timing it loads from a real cdr .. and it needs that timing..

I didn't really notice differences between Redream and my actual Dreamcast. Same issues/bugs, same easy game.

livingonwheels
lithium
Posts: 47

Re: Arcade Racing Legends Review! First footage of final version.

Post by livingonwheels »

Yes, I find the game very easy ( except perhaps the Beach track, can't stand all those turns at the beginning ). Otherwise I'm now ahead by 15 seconds in some races. On disc of course. Was able to finish the game in just a couple hours. On GDEMU the leader is constantly ahead by 15 seconds or more. Spent many hours this week trying to finish this game on GDEMU and just couldn't. Could not catch up, even the first Arcade race was very difficult, I had to resort to cheating by using the van and blocking the other cars from passing ( difficult in itself ). The 3rd Arcade race was impossible, as was the 11th chapter of career. And the "jitter" of the cars are gone while playing on disc. It looked as though the cars were moving back and forth very rapidly if you know what I mean.

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Ian Micheal
Developer
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Location: USA
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Re: Arcade Racing Legends Review! First footage of final version.

Post by Ian Micheal »

qupe75 wrote:
Ian Micheal wrote:Game sounds like it is using timing from the disk prolly why they did not want to do a digital download as it does not work correct with out proper disk timing... since it's streaming data and the code sound like it has fixed time to load parts of the data from the 12x speed gdrom ..

Any faster and you get these problems.. this also happens on something i have done homebrew as i code it for the timing it loads from a real cdr .. and it needs that timing..

I didn't really notice differences between Redream and my actual Dreamcast. Same issues/bugs, same easy game.
Redream is a gdemu and has instant dma it does not emulate the speed of a real cdr on a gdrom drive.. infact redream or any dc emulator is much faster then a gdemu.. Also not emulating any of the real gdrom timing hence it not have the bugs of playing it on a real gdemu..

No dc emulator be it redream or the others are a good judge of what anything will run like on real hardware..

putifruti
noob
Posts: 1

Re: Arcade Racing Legends Review! First footage of final version.

Post by putifruti »

Ian Micheal wrote:
qupe75 wrote:
Ian Micheal wrote:Game sounds like it is using timing from the disk prolly why they did not want to do a digital download as it does not work correct with out proper disk timing... since it's streaming data and the code sound like it has fixed time to load parts of the data from the 12x speed gdrom ..

Any faster and you get these problems.. this also happens on something i have done homebrew as i code it for the timing it loads from a real cdr .. and it needs that timing..

I didn't really notice differences between Redream and my actual Dreamcast. Same issues/bugs, same easy game.
Redream is a gdemu and has instant dma it does not emulate the speed of a real cdr on a gdrom drive.. infact redream or any dc emulator is much faster then a gdemu.. Also not emulating any of the real gdrom timing hence it not have the bugs of playing it on a real gdemu..

No dc emulator be it redream or the others are a good judge of what anything will run like on real hardware..
Maybe the "read_limit" option in gdemu solve some of the issues. Not sure if clones have this implemented.

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deluxux
Super Sonic
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Re: Arcade Racing Legends Review! First footage of final version.

Post by deluxux »

If you check the gdemu wordpress site it says as an option for the INI file:

read_limit = N

Where N is natural number in range 600 to 1250 (in KiB/s), or 0 to disable and -1 for automatic limit. If enabled (N <> 0), GDEMU limits media read speed to better match actual GD-ROM drive. The automatic setting will only affect games that need it. Default is auto.

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Ian Micheal
Developer
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Re: Arcade Racing Legends Review! First footage of final version.

Post by Ian Micheal »

deluxux wrote:If you check the gdemu wordpress site it says as an option for the INI file:

read_limit = N

Where N is natural number in range 600 to 1250 (in KiB/s), or 0 to disable and -1 for automatic limit. If enabled (N <> 0), GDEMU limits media read speed to better match actual GD-ROM drive. The automatic setting will only affect games that need it. Default is auto.
If you remember i had to Change dreamneo so it works on a GDEMU i gave you builds till the timing worked.. all worked on redream and nulldc..
If they the dev's were using real hardware never tested it on Gdemu they could done what i did at first..

I had to change the speed or timing in a lot of places to get it to work correct on gdemu this is hardcoded.. Thing is i found a timing that worked on both a cdr and gdemu.. But at first it did not at all..

On all the emulators it worked fine..

If the cars are speeding up on his gdemu rip it means there streaming data which would have hardcoded timing

Other thing about reading from the real media such as a cdr is delay movement of the laser time it takes to spin up etc.. Gdemu not going to be emulating that.. really why it be faster .. faster seek times due to no moving parts..
Last edited by Ian Micheal on Thu Dec 03, 2020 2:49 pm, edited 1 time in total.

livingonwheels
lithium
Posts: 47

Re: Arcade Racing Legends Review! First footage of final version.

Post by livingonwheels »

These are the only options I have, and their settings, in my GDEMU ini:

open_time = 150
detect_time = 150
reset_goto = 1
image_tests = 0
Last edited by livingonwheels on Thu Dec 03, 2020 2:51 pm, edited 2 times in total.

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Ian Micheal
Developer
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Re: Arcade Racing Legends Review! First footage of final version.

Post by Ian Micheal »

Try read_limit = N see if it helps it
Were talking a game made with KOS here homebrew.. with streaming formats

qupe75
photon blast
Posts: 104
Dreamcast Games you play Online: Unfortunately none at the minute.

Re: Arcade Racing Legends Review! First footage of final version.

Post by qupe75 »

Redream is a gdemu and has instant dma it does not emulate the speed of a real cdr on a gdrom drive.. infact redream or any dc emulator is much faster then a gdemu.. Also not emulating any of the real gdrom timing hence it not have the bugs of playing it on a real gdemu..

No dc emulator be it redream or the others are a good judge of what anything will run like on real hardware..
I didn't think it emulated the speed of a cdr, but for me the game plays pretty similar to the disk in Redream from what I've played, obviously bar the loading times, which actually aren't too bad in the game.

I don't own a GDEmu for my Dreamcast so the actual games or Redream (or Demul for some) are how I play. Redream is convenient way to play with out all the faffing sometimes and I think it's a decent emulator.

livingonwheels
lithium
Posts: 47

Re: Arcade Racing Legends Review! First footage of final version.

Post by livingonwheels »

Didn't work out well. I put read_limit = N in the GDEMU ini and it makes it so very few of my games will even boot. Immediately upon choosing a game, it resets the Dreamcast.

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