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Index › Programming Questions & Help › Programs › Using 2D in a 3D environment
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Using 2D in a 3D environment (Read 549 times)
Manic
Using 2D in a 3D environment
Dec 12th, 2007, 1:18pm  
Hi all,

Is it possible to draw to the screen in 2D, while in 3D mode?

Do you have to do it through billboarding (making an object face the camera - in which case, how can this be achieved in processing?). Or is it possible to use the regular commands to draw in both styles?

I'm looking to be able to place a semi-transparent rectangle over my entire sketch at the end of each frame to create a fade out effect.

Also, while I'm here, does anyone know whether Processing uses a right handed or left handed coordinate system?

Thanks for any help.

Martin
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antiplastik
Re: Using 2D in a 3D environment
Reply #1 - Dec 12th, 2007, 2:42pm  
Quote:
Is it possible to draw to the screen in 2D, while in 3D mode?

You can :
- draw your 3D scene in a buffer, using createGraphics(width, height, P3D) for example
- display the content of the buffer on the screen, using image(buffer, 0, 0)
- then draw 2D shapes or whatever over it

Quote:
does anyone know whether Processing uses a right handed or left handed coordinate system?

http://processing.org/reference/environment/#Coordinates
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Manic
Re: Using 2D in a 3D environment
Reply #2 - Dec 12th, 2007, 5:08pm  
Nice one, thanks for the help!
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