On Fri, 22 Nov 2002 17:42:36 -0500, Frantisek Fuka quoth:

> Johannes Dahlstrom wrote:
>> Frantisek Fuka wrote:
>> 
>> 
>>>There are shadows but of course there's no longer any transparency,
>>>just white ground. And when I try to make the ground see-thru, the
>>>shadows disappear too... Can I somehow render the shadows but retain
>>>the background transparency???
>>>
>>>
>>>
>> Hmm... try using a white plane with brilliance 0, something like this:
>> 
>> plane {
>>   y, 0
>>   pigment { rgb 1 }
>>   finish { diffuse 1 brilliance 0 }
>> }
>> 
>> It should keep the shadows but get rid of the shading, the plane should
>> be pure white wherever light hits it.
> 
> Yes, exactly, now everything around the sprites is pure white and there
> is no transparency anywhere. That's something different than I wanted.
 
It should be quite easy to use an image editor to put in the transparency
manually: open the image in a good image editor (such as Photoshop or the
GIMP), select the pure white area, and tell the editor to make the
selection transparent.

-- 
Mark

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