stbenge schrieb:
> clipka wrote:
>> (BTW, someone's asking in povray.newusers for advice on your fastprox 
>> macros... and speaking of them, do you have them for download anywhere?)
> 
> There is a pattern which is much easier to use than fastprox. I posted 
> it also to p.t.s-f. It's actually much more accurate than the "fast" 
> prox macros, as evidenced by the attached image. It also produces 
> outside edge data.

It also seems to give much cleaner results than my reusing radiosity data.

A drawback I see is that it gives only a falloff to a certain distance 
from edges and crevices, then stays level, right?

At the same time there are benefits of course:

- It can be used to model an object with dirty crevices and worn-out 
edges that has recently been transported to someplace else; my approach 
can only detect proximity to /any/ geometry, and cannot easily be 
limited to a subset of the scene geometry (let alone some geometry that 
isn't even in the scene).

- It is a true 3D pattern; my approach is only suitable for object 
surfaces, and is therefore unsuited for use in media density, or in a 
pattern function (which in turn could probably be used to generate a 
smoothed version of the object using isosurfaces - what a powerful tool 
for beveling that would be!).

Maybe it would really be a good thing to go for a voxel-based approach, 
in hope to combine the quality of your approach with the speed gained 
through caching data (you wouldn't want /all/ those N inside-tests to be 
executed for /each/ iteration step of /every/ ray-object intersection 
test to be performed on an isosurface... >_<)

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