How To Zoom

[mohaps]

Zooming the camera like for a sniper scope is very simple.

it can be done with a few lines of code like

f32 defaultFOV = camera->getFOV(); // this is in radians
f32 defaultAspect = camera->getAspectRatio();

f32 zoomFOV = 0.25f * M_PI;
camera->setFOV(zoomFOV);

//to unzoom reset the FOV to the defaultFOV

you might want to play around with the aspect ratio to make the imabe non squishy / stretched.


Additionally you can use an overlay image for the sniper scope.... it is also a good idea to make the weapon invisible in FPS type games while zooming.