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?

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