[REQ] Fisheye lens model

[StompinTom]

itd be cool to get a fisheye lens model along with the traditional flat perspective lens model for the camera. it would make it easier to make .hdr or .exr panoramas to use as HDRI backgrounds in consequent scenes. some curved perspective would also lend itself to some interesting artistic possibilities.
i duno how hard it is to implement something like that and i know theres a lot of more important features on the waiting list, but itd be nice.
thanks!

[zsouthboy]

IMO time should not be wasted on such a thing, until things like SSS are done.

It's quite easy to simulate in post.

[StompinTom]

you can simulate it to a degree in postpro, but what about lenses with 220 degrees of view? also youd need a real hi res rendering to simulate it nicely in postpro, what with all the 2d distortion youre putting it through.

[zsouthboy]

I don't disagree

But the fact is that it is not impossible to do right now, vs. say, SSS, material layers, etc.

Not arguing against having fisheye (and other) lens perspective effects added, just other things first.

FWIW I LOVE my 10.5mm Fisheye Nikkor. Love it.

[zsouthboy]

Actually, now that I think of it, could you model a fisheye lens and then place it in front of the camera object? Would that work currently?

I'm going to look into trying a few things.

[StompinTom]

yeah i tried that:

the problem is the glass doesnt have a non reflective coating and to get it totally right takes a lot of tweaking (i think the lens has to be parabolic?)
but you can get some pretty effects!