RPGDX > Forums > General Discussion > Serious contemplation concerning Unmei Densetsu

Tenshi · Posted: Sat Jun 21, 2003 1:27 am Post subject:

- Hmmmm... I think I am going to use Allegro... I don't need to nor want to do anything 3D with Unmei Densetsu... that's what Federation Crystal: Online will be about. I just want to load an image and draw it to a buffer, then draw the buffer to the screen. >.<

[edit]
- Egh, we'll see.
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valderman · Posted: Sat Jun 21, 2003 9:33 pm Post subject:

Tenshi · Posted: Sat Jun 21, 2003 10:14 pm Post subject:

- I dunno. I'm getting incredibly frustrated with this. It's supposed to be a port, not some supreme expansion on it. I want it done and I want it out of the way. But in the past 3 days I haven't been able to put a single piece of text or image to screen. And what's all this about having to have my files powers of two?! That's an incredible waste of space, very few of my sprites are powers of two. They are multiples of four. I'm still trying to find some help on the issue, but the past few days of Google searches on "OpenGL 2D", and sprites, and such, have not yielded any results that would help me.
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Mandrake · Posted: Sat Jun 21, 2003 10:41 pm Post subject:

gamedev.net has an excellent article on using OpenGL for 2d...but it always seems like an overkill to me. I mean why use 3d rendering, to render an essentially 2d scene, onto a 2d projection? I mean, that would be like building a river to build a bridge.

And, since Allegro wraps around DirectX, it's 2d is more than hella fast enough. I'm pretty sure the diffrences between 2d blitting and 3d - 2d rendering/transformations are minimal to the naked eye.
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DrunkenCoder · Demon Hunter Joined: 29 May 2002 Posts: 559

well, it's basicly the diffrenece between 900 and 1500 FPS on a decent computer and also the diffrence between solid 60 and barly 20 on a
non accelerated one..

Really Allegro is a nice little thing and mandrake is 100% right
use the right tool for the job, in this case it really seems like allegro
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Rainer Deyke · Demon Hunter Joined: 05 Jun 2002 Posts: 672

Mandrake · Posted: Sun Jun 22, 2003 2:44 am Post subject:

right, but what is the speed diffrenece to someone watching? eh? Esp if the programmer used MMX accelaration (and unless your comp is like, older than dirt, it probably has it).....the diffrence in speed is probably minimal. Throw in the fact your now requiring a 2d game to have the support of a 3d card- and it just doesn't seem right.
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DrunkenCoder · Demon Hunter Joined: 29 May 2002 Posts: 559

Oh, on the topic of MMX acceleration =) Im pondering the idea to write
a quite fully MMX enhanced 2d engine but having some problems actually finding good refrence material, any ideas? Intel have some stuff but it's all quite a mess to find.
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valderman · Posted: Sun Jun 22, 2003 12:02 pm Post subject:

Ninkazu · Posted: Sun Jun 22, 2003 2:51 pm Post subject:

You can use a bitmapping font engine like I used for my math project. I got the original algorithm from the 3D breakout game at NeHe.

Tenshi · Posted: Sun Jun 22, 2003 7:55 pm Post subject:

- O.o .... I don't need to draw 10000 Textured quads per second... I don't think.... I'm getting some help on this issue, and it'd be great if I can get some here also. I'm still trying to load a texture, but Syd has helped me to get my orthogonal display correct so that it functions as a 640x480 plain.

- I downloaded some PNGLib, I guess I should learn how to use it? =D
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Ninkazu · Posted: Sun Jun 22, 2003 8:20 pm Post subject:

the best way to learn is by looking at someone else's code. I'm sure some people used pnglib in those contests they have at nehe...

valderman · Posted: Sun Jun 22, 2003 9:23 pm Post subject:

I've always been using uncompressed TGAs (or BMPs) for testing, since I'm too lazy to look into compressed image formats. I guess I'll have to whenever I'm releasing a full game.
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Ninkazu · Posted: Sun Jun 22, 2003 9:55 pm Post subject:

Bah, we have games on DVDs now, waste that space, boy! :P