On 20-10-2016 9:32, clipka wrote:
> Am 20.10.2016 um 08:58 schrieb Thomas de Groot:
>> On 19-10-2016 14:09, William F Pokorny wrote:
>>> On 10/19/2016 07:16 AM, Thomas de Groot wrote:
>>>> On 18-10-2016 18:29, William F Pokorny wrote:
>>>>> [snip]
>>>>> There is a base image_map texture on a plane. Over the top of that
>>>>> texture is another with 5 columns of 4 colors (0,0.5,1.0,2.0) where the
>>>>> 5 columns have transmit values of: 0,0.5,1.0,1.5,2.0. One parallel
>>>>> light
>>>>> source, camera orthographic, ambient 0, diffuse 1.0.
>>>>>
>>>>
>>>> Out of curiosity: what is a transmit value >1.0?
>>>>
>>> People use >1 sometimes to amplify colors or increase contrast.
>>>
>>> I think Norbert used this technique for one of his recent,
>>> http://www.tc-rtc.co.uk/, metal monster images.
>>>
>>> It isn't the most stable technique as can be seen in the right part of
>>> the posted images. I'd say use values in the 0 to 1 range as a rule.
>>>
>> [snip]
>>
>> Thanks indeed. This is an unknown effect of /transmit/ to me, in
>> contrast to /filter/. Going beyond complete transparency (t=1) is not
>> very intuitive :-)
>>
>> I suppose that most users are unaware of this and possibly it should be
>> mentioned in the docs.
>
> What -- that transmit+filter>1 can be used for effect? Or that the
> effect is non-intuitive?
>

transmit+filter, yes, I understand that; but transmit >1? for me that is 
non-intuitive. I cannot conceive something /more/ transparent than 
complete transparency ;-)

-- 
Thomas

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