> Op 12/11/2019 om 17:04 schreef Alain Martel:


>>>
>>
>> It's similar to a gradient y, but with only a single ramp.
>> function {max (min (y, 1), 0)}
>>
>> The max(y,0) clamp out everything under 0.
>> The min(y,1) clamp out everything over 1.
>> Leaving you with :
>> -infinity..0 =0, [0..1] ramping from zero to one, than stay at one.
>> It is extremely bright, ranging from White*2.35 up to White*13.5.
>> It may be intended to simulate the glare from the Sun at the zenith.
>>
> 
> I assumed as much but personally I am very wary of rgb values higher 
> than 1, and these are really extreme. In such cases I much prefer to use 
> a finish {emission} setting instead.
> 
Then again, with assumed_gamma set to 2.2, those get's compressed quite 
a lot.

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