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**alatnet** · 05-04-2006, 05:31 PM

This is another 3D cube that runs in lua.
I have created this 3D program mostly from scratch.
This version features a cube (more shapes will be added in later versions), 2 different wireframes, 3 different vertex points, XYZ axis lines, and a misc. display that shows the rotation of the X,Y,and Z axises and translation Z.

The controls are simple:
-D-Pad up rotates the X axis by -1 (or rotating the cube up).
-D-Pad down rotates the X axis by 1 (or rotating the cube down).
-D-Pad left rotates the Y axis by -1 (or rotating the cube left).
-D-Pad right rotates the Y axis by 1 (or rotating the cube right).
-The analog stick does the same thing as the d-pad BUT instead of rotating the axises by 1 and -1, it rotates the axises by 3, -3, 6, and-6 depending on how far you push the stick.
-The L Shoulder button rotates the Z axis by -1 and the R shoulder rotates the Z axis by 1.
-The triangle button increases translation Z by 1 (or zooming in).
-The cross button decreases translation Z by 1 (or zooming out).
-The start button brings up the main menu where you can choose what to view or quit the program. Circle, start, or the EXIT MENU option exits the main menu.

To install:
-Copy to the Applications folder in the luaplayer folder (DUH!).

For future updates, im thinking of adding more 3d models (such as diamond, pyramid, etc.), color options, and a little more controls.

Comments are appreciated, flames are not. Ive been working hard on this program and i think i did a great job on it.

**youresam** · 05-04-2006, 06:07 PM

Good job. I have been messing with the 3D gpe stuff for a while now, and I must say its a bit complicated. I had to look up almost every function of google. (That ws for my WarioWare PSP zooming and stuff)

**alatnet** · 05-05-2006, 10:16 AM

the only bump i'll do for this.

TheMarioKarters · 05-05-2006, 03:33 PM

Very cool, it shows what LUA can really do. :)

**youresam** · 05-05-2006, 05:35 PM

Originally Posted by TheMarioKarters

Very cool, it shows what LUA can really do. :)

Exactly! I think almost no one realises that LUA is a very good language. The only program is that so many programs have been released that use only basic elements. They don't realise that LUA is a very capable lanuage. LuaPlayer can do Wifi, IR, use the GPE, and tons of other neat things. Heck, if you can make it in C, it can go in LuaPlayer.

**cyanide** · 05-05-2006, 06:03 PM

its a shame how idiots have fscked up the front page article

**alatnet** · 05-05-2006, 06:04 PM

Originally Posted by youresam

Exactly! I think almost no one realises that LUA is a very good language. The only program is that so many programs have been released that use only basic elements. They don't realise that LUA is a very capable lanuage. LuaPlayer can do Wifi, IR, use the GPE, and tons of other neat things. Heck, if you can make it in C, it can go in LuaPlayer.

True, I may create a game in LUA using 3D.
Also, i have created a diamond in Lua for my 3D cube 3 program. Im going to start on a pyramid and trimid(a pyramid but with 3 sides instead of 4). I may add a grid to it later on after i have a good amount of 3D objects.

TheMarioKarters · 05-05-2006, 06:09 PM

Originally Posted by alatnet

True, I may create a game in LUA using 3D.
Also, i have created a diamond in Lua for my 3D cube 3 program. Im going to start on a pyramid and trimid(a pyramid but with 3 sides instead of 4). I may add a grid to it later on after i have a good amount of 3D objects.

Nice, a trimid sounds cool.

**youresam** · 05-05-2006, 08:26 PM

Originally Posted by alatnet

True, I may create a game in LUA using 3D.
Also, i have created a diamond in Lua for my 3D cube 3 program. Im going to start on a pyramid and trimid(a pyramid but with 3 sides instead of 4). I may add a grid to it later on after i have a good amount of 3D objects.

Just so you know, LuaPlayer is missing the sceGumLookAt command. I have added it to LuaPlayer about half a month ago, but the parameters are a bit complicated. This command is the 'camera' in a 3D game.

**Art** · 05-05-2006, 08:42 PM

Its a shame how idiots have fscked up the front page article

The front page article does say it uses the media CPU.
That would draw a lot of attention.

**alatnet** · 05-05-2006, 09:22 PM

Originally Posted by youresam

Just so you know, LuaPlayer is missing the sceGumLookAt command. I have added it to LuaPlayer about half a month ago, but the parameters are a bit complicated. This command is the 'camera' in a 3D game.

Which lua version? I've got version 0.16 cus it works on my 2.0 psp. Is their any higher version that works on 2.0 psp's?

**youresam** · 05-06-2006, 09:19 AM

Originally Posted by alatnet

Which lua version? I've got version 0.16 cus it works on my 2.0 psp. Is their any higher version that works on 2.0 psp's?

I added it to .19 because I can't compile .16
Thanks to AT for the sample code!

If you want it, add this to lua3d.cpp:

(and the first line shoule be lua_State *L)

Code:

static int lua_sceGumLookAt(lua_State *L) {
	int argc = lua_gettop(L); 
	if (argc != 9) return luaL_error(L, "wrong number of arguments"); 
	
	ScePspFVector3 cameraPos;
	ScePspFVector3 lookAtPos;
	ScePspFVector3 upVec;

	cameraPos.x = luaL_checknumber(L, 1);
	cameraPos.y = luaL_checknumber(L, 2);
	cameraPos.z = luaL_checknumber(L, 3);
	lookAtPos.x = luaL_checknumber(L, 4);
	lookAtPos.y = luaL_checknumber(L, 5);
	lookAtPos.z = luaL_checknumber(L, 6);
	upVec.x     = luaL_checknumber(L, 7);
	upVec.y     = luaL_checknumber(L, 8);
	upVec.z     = luaL_checknumber(L, 9);
	
	sceGumLookAt(&cameraPos, &lookAtPos, &upVec);
	return 0;
}

and change the functions at the bottom:

Code:

static const luaL_reg Gum_functions[] = {
	{"matrixMode", lua_sceGumMatrixMode},
	{"loadIdentity", lua_sceGumLoadIdentity},
	{"perspective", lua_sceGumPerspective},
	{"translate", lua_sceGumTranslate},
	{"rotateXYZ", lua_sceGumRotateXYZ},
	{"drawArray", lua_sceGumDrawArray},
	{"lookAt",     lua_sceGumLookAt},
  {0, 0}
};

**alatnet** · 05-06-2006, 06:29 PM

Ive done the editing BUT ive been getting some errors:

Code:

[email protected] ~/projects/luaplayer
$ make
psp-g++ -I. -I/usr/local/pspdev/psp/sdk/include -G0 -Wall -O2 -fno-strict-aliasing  -I/include/freetype2 -I/include -I. -I/usr/local/pspdev/psp/sdk/include -G0 -Wall -O2 -fno-strict-aliasing  -I/include/freetype2 -I/include -
fno-exceptions -fno-rtti   -c -o src/sio.o src/sio.cpp
src/sio.cpp:175: error: invalid conversion from 'int (*)(PspIoDrvFileArg*, unsigned int, void*, int, void*, int)' to 'int (*)(PspIoDrvFileArg*, const char*, unsigned int, void*, int, void*, int)'
make: *** [src/sio.o] Error 1

**MikePiP** · 05-06-2006, 06:46 PM

The main things that I dont like about LUA are:

1. Not much sound support
2. No Video Support.
3. Slow with the sounds it can do.
4. Slow in general.

Other then that its a very powerful langauge.

Alatnet what version of the SDK are you using?

**alatnet** · 05-06-2006, 07:11 PM

Latest from the newtoolchain program.

**youresam** · 05-06-2006, 07:48 PM

Let me guess... your trying to compile .16? Try .19, .16 is so outdated that the new sio library isnt compatible anymore.

TheMarioKarters · 05-06-2006, 08:06 PM

Originally Posted by alatnet

Which lua version? I've got version 0.16 cus it works on my 2.0 psp. Is their any higher version that works on 2.0 psp's?

Just downgrade to 1.5 and run 0.19 ;)

**alatnet** · 05-06-2006, 08:10 PM

Doesn't 0.19 have that module loading thing? And doesn't the module loading need kernel mode? And doesn't kernel mode NOT work that well in 2.0 psp's?

TheMarioKarters · 05-06-2006, 08:10 PM

Originally Posted by alatnet

Doesn't 0.19 have that module loading thing? And doesn't the module loading need kernel mode? And doesn't kernel mode NOT work that well in 2.0 psp's?

Actually, kernal doesn't work at all.

**alatnet** · 05-06-2006, 08:14 PM

Then how can luaplayer 0.19 work on a 2.0 psp?

**youresam** · 05-07-2006, 07:22 AM

Originally Posted by alatnet

Then how can luaplayer 0.19 work on a 2.0 psp?

It cant.
Downgrade to 1.5 and use .19

**PSP10011001** · 05-07-2006, 07:39 AM

Nice Job :icon_smil

TheMarioKarters · 05-07-2006, 07:39 AM

Originally Posted by youresam

It cant.
Downgrade to 1.5 and use .19

I've been saying that, he doesn't listen.

**alatnet** · 05-07-2006, 08:59 AM

I really dont wana downgrade cus i sorta like 2.0 cus of my video's being avs's and using the internet browser for reading fanfiction.net stories saved on my mem stick.

**alatnet** · 05-09-2006, 05:27 AM

**alatnet** · 05-09-2006, 05:33 AM

Uh... a little side note...
It seems that prohosting is being an @$$ and not showing the screenshots. But i do have the screenshots in the compressed file.

**Jeff Chen** · 05-09-2006, 05:49 AM

Good job, alatnet. Would you please edit the title of your release post to the latest version with a date like 05-09, so we can see it really quick? Thanks :P

**alatnet** · 05-09-2006, 05:51 AM

well, i could but then i would need a moderator to change the post name...

**bossmanuk** · 05-09-2006, 12:57 PM

Originally Posted by alatnet

Uh... a little side note...
It seems that prohosting is being an @$$ and not showing the screenshots. But i do have the screenshots in the compressed file.

Yeah, all you have to do is copy the link. If you get a orbidden, just refresh and they come up.

Good release! I still think this looks cool.

**iball®** · 05-09-2006, 01:08 PM

Intriguing....learning proper 3d controls and effects is a good first step on the road to making more advanced homebrew.

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