Looking for pixel value

[morad]

I'm trying to create a contour lock algorithm.

for that i need to get the pixels value around my aiming point.

Is there a simple way to get that?

[ParaToxic]

Is that a kind of DOF with a focus center?

[morad]

No

 

Its an auto tracker that keeps the camera on a specific point when activated based on the contrast from the background

[LordHippo]

you can read that with glRead command I think. It reads a range of pixels from the buffer.