Am 16.10.2017 um 16:41 schrieb Kenneth:

> This 'non-linear' blending/blurring phenomenon on a typical gamma 2.2 monitor
> could conceivably have deeper ramifactions-- for example, when rendering
> a particular kind of scene in POV-Ray. Here's a thought experiment: Let's say
> that a flat surface there, facing the camera, has a gradient-y pigment or
> 'normal' pattern applied to it-- a very *small* pattern with a 'sharp' color_map
> and high frequency, like ...
> [0.5 rgb 0]
> [0.5 rgb 1]
> 
> If that object is positioned way off in the distance (relative to the camera), I
> could forsee it having a *darker* blended appearance in the final image than if
> it were closer to the camera (where the alternating black/white pattern could
> actually be seen as individual lines.) Due solely to the 'non-linear' blending
> by the monitor of the black/white combination. Micro-normals come to mind as
> well, the darker blending effect depending on the orientation of the object and
> its distance. But all of this is guesswork, of course.

If you use a non-native display resolution, then this can indeed happen,
due to the non-linear blending by the monitor.

In POV-Ray's anti-aliasing, this is already taken into account:
Anti-aliasing nowadays works in linear colour space (presuming you're
using `assumed_gamma 1.0`, which is a prerequisite for POV-Ray behaving
properly with respect to anything gamma-related).

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