"Barn doors" for vray light

[EricKlein]

I haven't seen this request anywhere, so I thought I'd throw it into the hopper. Here's a couple links to explain what i'm looking for:


http://www.bealecorner.com/trv900/barn/barndoors.html

o.k, and this one...

http://www.wpi.edu/Academics/Depts/H.../barndoor.html

Bottom line is it's a way to give the light more controlled directionality...thoughts?

Eric.

[Syclone1]

what if you put the light in an enclosure with the barndoors on it?

[EricKlein]

what if you put the light in an enclosure with the barndoors on it?

Well, admittedly I haven't had enough time to fully explore this, but as I imagine it it would be much cleaner.

first of all you don't need to build, increase render settings for, and potentially hide another piece of geometry.

secondly, I see barn doors as a very precise cutting tool, much like max's hotspot/falloff, but having direct angles of control straight from the light source...I'm a transplant into 3d from theatre, and this technology onstage is great for putting light just where you want it...

lastly- and this is out of my knowledge base, but I imagine efficiencies within the rendering calculation that might be created from the more precise nature of built-in 'hinges' right off of the vray light. The renderer could exclude all calculations except those coming at whatever angles the shutters dictate...

e.

[studioDIM]

It'd be enough to be able to texture the vraylight plane.
That'd take care of the barn doors with a gradient, but also allow for proper Gobos to be put on the lights.

It'd be lovely to have, indeed.

Lele

[EricKlein]

It'd be enough to be able to texture the vraylight plane.
That'd take care of the barn doors with a gradient, but also allow for proper Gobos to be put on the lights.

It'd be lovely to have, indeed.

Lele

Here's a rough version of what I have in mind...The blue panels are the shutters, and the yellow and pink fill the gaps from changing the angles. I'm not certain you could get the same thing from a gradient map~

e.