Camera

All Versions

Cameras in Houdini are different from those on other applications, let's have a look at how these relate so you can become familiar with them.

One of the first things you will notice is that the camera in Houdini, like every in every other package, is slightly different so here is a quick refresher.

Maya	Houdini	Conversion formulas
Focal Length	Focal Length	f = (d/2) * cot (a/2) where f is focal length in mm
Camera Aperture	Aperture	a = 2 * arctan (d/2*f) where d = film size in mm
Angle of View	-n/a-	You will have to derive it from the previous formulas
Film Offset	Screen Window X/Y	1 houdini unit = Aperture * (Maya)

Notes

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