SIO2 Engine 3D Engine on the N900 - Page 2 - maemo.org

franny87 | # 11 | 2010-01-22, 16:13 | Report

Originally Posted by bbns View Post

It is possible to reach 60 FPS if you write the engine carefully (i.e., not let your computation code congests OpenGL context pipeline).

Here is the article:
http://labs.trolltech.com/blogs/2010...nt-in-threads/

NICE find!

sio2interactive | # 12 | 2010-01-22, 22:31 | Report

mooninite: Well considering that the app is running at 60fps on a 480x320 and the N900 screen is about 60% bigger so the FPS should be around 35 fps right? but the game run under 20 fps... with the same code and the same compiler optimization... So yes there's a performance issue...

sio2interactive | # 13 | 2010-01-22, 22:51 | Report

generationally: The idea is to first port some small casual games in order to test the OVI store. If we feel that there's a demand we will port the whole SDK (checkout http://sio2interactive.com for more info), so ALL the games created with SIO2 can be EASILY ported on the N900 (we are talking about over 400 + registered by indies and about more than the double using the free edition so... that's alot of games that can go straight on the OVI store with ease

).

At the moment it seems that there is some issue with the store, even with a publisher account we cannot put online any C/C++ App. on the OVI store... which is actually a bit silly since by default the phone comes with a giant link of the OVI store right on one of the desktop and inside the control panel, and its basically not usable for real game developers, and god knows how much profitable games are on theses kind of store but... anyway...

Im still waiting for Nokia to reply to me on that to determine wether or not it'll be possible to put native C/C++ App for the N900 on the store...

Anyway, we want to wait before making the SIO2 port available, cuz right now developers cannot even put their Apps. on the store (either free or commercial) so its actually useless until Nokia fix the issue or at least confirm with us that it will be possible in a near future...

Another point is that basically the firmware doesn't come with OpenGL ES v1.1 working out of the box. I do appreciate the native 2.0 support, but in order for Nokia to be competitive and allow all the iPhone game developers to port their games on the platform, a good ES v1.1 driver should work right out of the box, so the platform can reach alot of game developers that have been working on (let's call it the) "other" platform for the last 2 years...

Last edited by sio2interactive; 2010-01-22 at 23:00.

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attila77 | # 14 | 2010-01-22, 23:37 | Report

Originally Posted by sio2interactive View Post

mooninite: Well considering that the app is running at 60fps on a 480x320 and the N900 screen is about 60% bigger so the FPS should be around 35 fps right?

How did you get the 60% figure ? The N900 is 800x480, so well over double the pixel count of the iPhone (2.52x more, to be exact).

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sio2interactive | # 15 | 2010-01-22, 23:48 | Report

Errrrrr, sorry ma bad, you are right:

153600px for iPhone
384000px for N900

(how the hell I arrive at 60%, whatever... cheap coffee I guess...)

Anyway... the FPS should be around 24fps, and its running way below that... The game run at 14 fps min & 17 fps max... And the N900 have better hardware (compare to my test device an iPod Touch 2nd Gen).

Last edited by sio2interactive; 2010-01-22 at 23:57.

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Flandry | # 16 | 2010-01-25, 06:41 | Report

Memory bandwidth limitation?

I'm not familiar with the engine but it sounds like there are a lot of projects using it, so i hope this gets worked out.

What do you mean when you say that a C/C++ app can't go in Ovi store...surely that's what the current apps in there are?

bandora | # 17 | 2010-01-25, 06:57 | Report

I am sure you will be able to post your games on OVI store C/C++ or anything... Nokia is facing an issue with the OVI store right now though (people can just apt-get apps for free) so once this is solved I am sure you can post whatever you want for the 70% profit..

I am eagerly waiting for some bada*s apps and games to be ported/created for the N900... Especially cool games that uses OpenGL-ES...

Keep up the good work guys!!!

sio2interactive | # 18 | 2010-01-25, 10:30 | Report

Originally Posted by Flandry View Post

Memory bandwidth limitation?

I'm not familiar with the engine but it sounds like there are a lot of projects using it, so i hope this gets worked out.

What do you mean when you say that a C/C++ app can't go in Ovi store...surely that's what the current apps in there are?

Probably the memory bandwidth, that's a possibility...

Concerning the store, we pay the 50EU, to gain access to the publishing services, but there's only: Flash, Java, Symbian and WRT Widget that is available for publishing...

Im still waiting for the feedbacks on Nokia on the issue, but right now the OVI store is completely obsolete for (at least) game developers...

>> surely that's what the current apps in there are?

To answer your question, all the current apps are on free repository... nobody is able to publish their native C/C++ games on the OVI store...

Even if you pay the 50EU, you there's no way you can put your C/C++ apps online on the OVI store... Honestly we didn't even thought of that... as it was like 100% certain in our heads... since the store is there, the device is released and the development tools are available... and man... it's Nokia... pioneers in this field...

We are basically quite disappointed at the moment by the platform... and the lack of support from Nokia on the subject...

Anyway... so far almost 2 weeks of work and 50 euros wasted... not really a confidence builder...

Just hope that other game developers will not make the mistake that we did

Last edited by sio2interactive; 2010-01-25 at 10:41.

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attila77 | # 19 | 2010-01-25, 11:40 | Report

Originally Posted by sio2interactive View Post

Concerning the store, we pay the 50EU, to gain access to the publishing services, but there's only: Flash, Java, Symbian and WRT Widget that is available for publishing...

I have no Nokia hat, but I'd say what you are seeing is simply the non-availability of N900 support. None of the services you list above make any sense on the N900. There WILL be native applications in there (offscreen apps are Qt based, Angrybirds is also native, etc), it's just that it seems the submission process for N900 specific content is not yet open (all mentioned apps were in there probably due to some prerelease deal with Nokia and (my guess) inserted manually in the repositories).

So, when they say BETA, they (for now) mean more like 'a few apps to download to test our systems', not 'ready for publishers' (at least that's what AppWatch statistics of the static number of apps in there suggest).

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keljuk | # 20 | 2010-01-25, 12:31 | Report

Originally Posted by sio2interactive View Post

Another point is that basically the firmware doesn't come with OpenGL ES v1.1 working out of the box. I do appreciate the native 2.0 support, but in order for Nokia to be competitive and allow all the iPhone game developers to port their games on the platform, a good ES v1.1 driver should work right out of the box, so the platform can reach alot of game developers that have been working on (let's call it the) "other" platform for the last 2 years...

Isn't the bounce evolution game gles 1.1??

Last edited by keljuk; 2010-01-25 at 12:33.