Drawing inside an ofCamera

beginners
#1

Hello

Lets see if i can explain myself right, im trying to do 3d particle system, and want to keep the particles moving inside the screen area.

When i do in 2d i can constrain the particles to be inside the screen because i know that maxLeft is 0 maxRight is ofGetWidth() top is 0 and bottom is ofGetHeight()

But when i apply an ofCamera and position that camera in the center of the screen, what coordinates are my bounds? I tried to apply the same bounds as in 2d but do not work.

I mean, when drawing inside an ofCamera positioned in the middle of the screen. The center of the screen is still (ofGetWith()/2, ofGetHeight()/2) ??? and maxRIght is ofGetWidth(), maxLeft is 0 and etc etc ??

Thank you

#2

Hi, if I understand you correctly, what you need to use as the bounds is the camera frustum.
Look at this example as it actually shows how to achieve it
Cheers

#3

Thank you, thats what i wanted to know!

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