Am 29.01.2014 03:19, schrieb clipka:
> A scene with 1000 randomly placed light sources with distance-dependent
> attenuation (fade_power, fade_distance).
>
> First image: POV-Ray 3.7, render time 73s.
>
> Second image: experimental patch, render time 9s.
>
> For each light source, the patch automatically computes a cutoff
> distance based on light source brightness, fade parameters, and a global
> threshold (currently this is the global adc_bailout setting). Beyond
> this distance, the lights source is simply ignored.
>
> (As an alternative, the patch also allows for manually specifying the
> cutoff distance, but that's not used in this scene.)

The patch is now available as part of UberPOV v1.37.0.0-beta.5:

https://github.com/UberPOV/UberPOV/releases/tag/v1.37.0.0-beta.5

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