In article <35a10973.7995439@news.povray.org>, Fri### [at] stonescom says...
>
>"ior" fom the texture modifier to the interior modifier, although I
>didn't really understood why it isn't possible to insert the
>"interior" modifier into the texture "modifier", like finishes and
>pigments. 

This is answered in the docs : if the interior could be part of a "texture"
statement, then you could make texture_maps or material_maps using textures
with different iors or medias; this would be illogical.  That's why
they separated texture and interior.

Now, I agree for the following annoyment : you can't #declare a glass type
material with just 1 identifier.  You must have 2 identifiers to create 
a glass object...

Maybe there could be a turnaround in the future : a new "material" identifier
that would include 1 texture and 1 interior, such as :

#declare MyGlass = material {texture {TranspColor} interior {Glass1}}

Fabien.

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