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On 2/22/2017 7:42 AM, Thomas de Groot wrote:
> On 21-2-2017 23:52, Stephen wrote:
>>>
>> Hi Zhekai and welcome.
>>
>> You have to define the background as transparent.
>>
>> For instance: background { colour rgbt <0.0, 0.0, 0.0, 0.0> }
>>
>> Or better still to use the sRGB standard
>> background { colour srgbt <0.0, 0.0, 0.0, 0.0> }
>>
>>
>>
>
> correction: background { colour srgbt <0.0, 0.0, 0.0, 1.0> } ;-)
>
Thanks Thomas.
--
Regards
Stephen
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