On 2022-08-26 17:16 (-4), Dave Blandston wrote:
> I'm guessing the extreme brightness is what's causing the lack of anti-aliasing
> around the front edge of the hood. Could the use of light_group be used to fix
I actually did use a light group in my original lamp 17 years ago, but
aliasing was not the issue. I used large fade distances, which did not
illuminate the hood interior sufficiently to cause anti-aliasing
The problem I had back then was how to avoid a sharp cutoff of the
light, which is recessed, by the hood without requiring an area light.
The attached image shows this issue. I solved it in 2005 by using a
non-recessed wide-angle spotlight to illuminate the scene, and a light
group to illuminate the hood interior.
I made the decision last year to abandon that approach. There would be
a single light_source, centered on the light bulb, for both the hood
interior and the scene, with the spotlight being repurposed for
radiosity replacement. But a light group would not have solved the
problem anyway; the issue is the light intensity that realistic
attenuation entails, and a light group doesn't change that. I verified
this by rendering my original 2005-2006 lamp with input arguments that
forced realistic attenuation.
I would rather deal with hyper-white aliasing by post-processing.
Post a reply to this message
Download 'test_desklamp-v38d0r0.jpg' (51 KB)
Preview of image 'test_desklamp-v38d0r0.jpg'