Le 01/12/2010 00:57, Christian Froeschlin a écrit :
> Dave Blandston wrote:
> 
>> Or some other method?
> 
> I wonder if the aoi pattern should be extended
> to support an absolute direction vector which is
> then compared to the incoming ray (ignoring the
> surface normal). Then the complete appearance of
> the sphere can change depending on the viewpoint
> (in particular it could become invisible).
> 
> The current aoi pattern is not very helpful here
> as every viewpoint sees points on the sphere at all
> angles from 0 to 90 degrees.


I will think more about it, but no promise.
May be it would then need a better name than "angle of incidence" (aoi)
as it would then ignore the actual surface. any suggestion ?

would expect another range than 0 to 90 degrees ?

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