Hello :wink:

I am thinking about implementing perspective control on a Houdini camera
(to control the appearance of perspective in the image).

http://en.wikipedia.org/wiki/Perspective_control_lens [en.wikipedia.org]

What is the best starting point for this? Should I dive straight into the Houdini HDK?

Any suggestions are welcome.

Thanx!

Hi,

For “shifting” you don't need to implement anything - you can simply use the “View -> Screen Window X/Y” controls on the camera. This effectively equals what a “shift lens” does.

However to get also “tilt” capabilities one would need a more complex camera model.

o.

Thanks, this is what I was looking for

if you need more control, you can implement it as a Lens Shader, should be pretty straightforward