On 09.10.2017 09:15, Sven Littkowski wrote:
> On 09.10.2017 06:56, Sven Littkowski wrote:
>> Hi
>>
>> is it possible to create a scene where the rendered items are visible
>> but the entire empty background becomes transparent, if the output image
>> is a PNG?
>>
>> ---
>> Diese E-Mail wurde von AVG auf Viren geprüft.
>> http://www.avg.com
>>
> Biiiig thanks to everyone here! You all helped me a lot, and my problem
> seems to be solved now.
> 
> No, I had indeed not know the +ua switch. Never had a need for such. But
> I am reconstructing ancient Roman ships, and just their oars I want to
> do in render technology. Which brings me to the next problem, how to
> recreate one of the Roman-style galley oars. it is too easy just to use
> a long cylinder with a flattened (thin-scaled) oval cylinder at the end.
> The transition between shaft and brad area was kinda smooth.
> 
Ships like these, in high-res. Some US book publications already showing
parts of my work in the field of maritime archaeology. But I have
something in mind about the oars, that will make them looking even more
realistic.

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