> Alain Martel <kua### [at] videotronca> wrote:
> 
>>
>> I tend to use some averaged micro-normals. Around 5 to 10 seems to work
>> well.
>> I prefer to use granite as my base pattern.
>> I also use rather large random translations after the scaling.
> 
> Granite-- I never thought of that. It is nicely 'random'. My own trials used
> overlapped and rotated 'linear' patterns... like sine waves or scallop waves for
> the normals, IIRC. Maybe that was the cause of my Moire patterns? I need to
> experiment with your method.
> 
> 

You can also try bozo/bumps/spotted or agate as your base pattern.
You can mix different patterns.

For example, you can use a large scale bozo and overlay it with 
micro-normals using granite.

There are so many possibilities, you need to explore.

Tip when using averaged textures for complex objects or multiple objects 
with blurred reflection :

Make two copies of your objects with blurred reflection. The first have 
the full averaged texture and the no_reflection attribute. The second 
have only the non-averaged micro-normals and the no_image attribute.
That way, when that object self reflect, or several objects that have 
blurred reflection inter reflect, the number of rays to trace is kept to 
a reasonable level.
This is not useful in the present case as the only surface with blurred 
reflection is a ground plane.

Also, using averaged textures can be much faster that rendering multiple 
times and averaging the resulting images externally. The render time hit 
only affect the part of the image where there are averaged normals. 
Multiple renders need to render the whole image multiple times, then, 
you have the time needed to post process them.

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