New V9990/GFX9000 game for msx2 in developement

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Door Kai Magazine

Paragon (1303)

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22-04-2017, 21:56

We need to know how many people might be interested in a game such as this, for gfx9000/v9990 owners or emulator users.
Please let us know by responding to this message if you could be interested in this game and if you own a gfx9000, if you are going to purchase one soon (some units are being produced in Spain) or if you would play it on an emulator.
Depending on the amount of interested people, the game would be finished sooner, and it would contain more variety, length, richness and overall work.
We aim to at least 60 interested people, 20 of them in digital version (to release a working digital version for openmsx), in order to make it a priority in our development project list.
https://youtu.be/24RckUzT74A
New MSX 2, MSX 2+ and Turbo R game using v9990 (AKA gfx9000/powergraph) and opl4 (AKA Moonsound).
An 8 bit processor successfully controlling 2 16 bit chips (video and audio) while handling the game logic, etc. I belive this has never seen before until now.
I apologize for the lack of quality of the video but no emulator runs the game correctly at the moment.
This is just a quick test I did on a couple of weeks, it has no optimization of any kind, just a quick test to see what could be done on a 8 bit cpu with those 2 16 bit chips.
This test just uses a small amount of the actual power of those 3 chips.
There is a HUGE room for improvement. I estimate that most arcade games from the 80's to the mid 90's can be successfully ported to this hardware.
Regarding this engine, I just did a very basic beat'em up / action rpg, but with this engine and several months of work, any beat them up in the style of "Final Fight/streets of rage/teenage ninja turtles/cadillacs and dinosaurs, etc) can be done without breaking a sweat.
Stay tuned for updates.

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Van Manuel

Ascended (15750)

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22-04-2017, 22:25

We of the openMSX team are very interested in concrete examples of wrong emulation, especially if they're in a short simple runnable disk-based program, so we can easily pinpoint the issue, and test on real hardware.

Regarding your question: I'm very interested in a GFX9000/Moonsound game, but I personally don't really like these beat 'm up kind of games. So I'm not sure yet if I would buy it.

Van ARTRAG

Enlighted (6244)

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22-04-2017, 23:11

I want to buy a digital copy. Great work. Greetings

Van Kai Magazine

Paragon (1303)

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22-04-2017, 23:21

Manuel wrote:

We of the openMSX team are very interested in concrete examples of wrong emulation, especially if they're in a short simple runnable disk-based program, so we can easily pinpoint the issue, and test on real hardware.

Regarding your question: I'm very interested in a GFX9000/Moonsound game, but I personally don't really like these beat 'm up kind of games. So I'm not sure yet if I would buy it.

I will try to build a rom for you with the issues, when I have some free time.
In the meantime, the mani bugs/issues are:
-When swapping pages, on msx the vblank detection works correctly, on openmsx does not and it changes page before or after it is meant to, causing to see how the graphics are built.
-If sdlgl -pp is enabled, the game works incredibily slow (4 or 5 times slower). Without it, the game works at the correct speed but since there is no vsync, the scroll is crappy as hell (tearing effect, frame skipping even when it is disabled, etc).

Van Kai Magazine

Paragon (1303)

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22-04-2017, 23:21

ARTRAG wrote:

I want to buy a digital copy. Great work. Greetings

Thank you Artrag!

Van Lazzeri

Champion (263)

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22-04-2017, 23:26

I'll have a physical copy please.

(I need a GFX too but will take the game no matter what)

Van Kai Magazine

Paragon (1303)

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22-04-2017, 23:36

Thank you Marco!

Van Manuel

Ascended (15750)

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22-04-2017, 23:39

Kai Magazine wrote:

I will try to build a rom for you with the issues, when I have some free time.

I prefer a disk, that is easier to test with on my real MSX.

Quote:

In the meantime, the mani bugs/issues are:
-When swapping pages, on msx the vblank detection works correctly, on openmsx does not and it changes page before or after it is meant to, causing to see how the graphics are built.

OK that sounds like an emulation bug I'd like to investigate with a minimal example.

Quote:

-If sdlgl -pp is enabled, the game works incredibily slow (4 or 5 times slower). Without it, the game works at the correct speed but since there is no vsync, the scroll is crappy as hell (tearing effect, frame skipping even when it is disabled, etc).

If openMSX is slow with this renderer, it's an issue with your PC hardware. It's using OpenGL 2 based scaling and other preprocessing. which may indeed also mean it does vsync, depending on your graphics driver settings. But if your PC graphics hardware or driver isn't capable of rendering OpenGL 2 via hardware, it will be very slow.

openMSX won't do frameskipping if 'maxframeskip' is set to 0, but it may mean slowdowns if your PC can't keep up. Note that GFX9000 emulation is relatively unoptimized and could thus be heavy for your PC, especially if it's an older or light-weight one. What kind of PC hardware are you using to emulate?

Van Kai Magazine

Paragon (1303)

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22-04-2017, 23:47

I use a dual core i3 desktop with a graphic card close to play station 4 specs (I can emulate play station 2 correctly, I should be able to emulate an msx2), and a dual core i3 laptop.
The tearing with sdl happens always, on any msx2 smooth game.
The incredible slowdown with sdlgl -pp only happens with v9990 emulation. It works perfectly smooth on msx, msx2, 2+ and turbo R (even screen 10, highway fighter) so there is no reason to go 5 or 6 times slower for gfx9000, also, with the sdl option works at full speed.

Van valkyre

Champion (419)

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22-04-2017, 23:52

I would be up for a physical copy.

Van msxtrd

Master (209)

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23-04-2017, 00:14

In for a physical release.

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