[Bf-python] Material raytrace patch

[Campbell Barton]

jmsoler at free.fr wrote:

>Selon Campbell Barton <cbarton at metavr.com>:
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>>Hi All. not sure if anyone noticed,
>>There is sombody interested in making another patch to compleate the
>>Texture MapTo, and Lamp Ray settings.
>>
>>Having these settings are usefull for exporting to external raytracers.
>>(PovRay ...
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>blender materials are not compatible with  povray's textures/materials . They
>are totally different .
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>jms
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of course povrays shader block is different, but there are some settings 
that map accross- Like RayTransp and RefracIndex for light bending 
through objects.
One of the important settings is Filter - Recently added to blender that 
PovRay also supports

So I think enough map directly accross, anyhow it dosent hurt to allow 
accsess to these vars.
- Cam