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lego
Joined: 17 Oct 2008
Posts: 43
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 Posted: Fri Oct 02, 2009 12:19 am Post subject: Why sceGuFrontFace(GU_CW)? |
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Hi, everybody.
Why much code for psp use clockwise instead of counter-clockwise like an OpenGL by default :-)?
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jojojoris
Joined: 30 Mar 2008
Posts: 261
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| Posted: Fri Oct 02, 2009 6:12 am Post subject: |
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Probably cause the coder wants to.
That's realy the only answer. Iy you want to use GU_CCW you can use GU_CCW.
_________________
| Code: | int main(){
SetupCallbacks();
makeNiceGame();
sceKernelExitGame();
} |
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dridri
Joined: 31 Jul 2009
Posts: 35
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| Posted: Fri Oct 02, 2009 6:35 am Post subject: |
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This is the source code :
| Code: | void sceGuFrontFace(int order)
{
if (order)
sendCommandi(155,0);
else
sendCommandi(155,1);
} |
Yes its a special way, because if you write GU_CW the GU_CCW mode is used, and if you write GU_CCW the GU_CW mode is used...
I think it's due to the PSPGU's programmer reversed a game to know how the PSPGE is used and next write the PSPGU, maybe this game was in CW mode...
_________________
I'm French, and 15 years old, so my English is not good... |
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Jim
Joined: 02 Jul 2005
Posts: 487
Location: Sydney
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| Posted: Fri Oct 02, 2009 7:32 am Post subject: |
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Say you wanted to render an object on a reflective floor.
You would draw object A with CCW, then negate the Y axis in your model view, then draw object A with CW.
Jim
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http://www.dbfinteractive.com |
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lego
Joined: 17 Oct 2008
Posts: 43
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| Posted: Fri Oct 02, 2009 7:31 pm Post subject: |
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