On 31-3-2015 14:08, Sven Littkowski wrote:
> How can I achieve that of that PNG texture only the white color allows a part of
> the outside color_map can shine through? "Filter" and "transmit" seem to be
> rejected when using an image. Any idea?
I don't know if this can help you, but when using images you can use the 
following terms:

transmit all or filter all

followed by a value, for instance 0.5, inside the pigment block 
containing the image.

-- 
Thomas

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