Le 17-04-30 à 07:05, Thomas de Groot a écrit :
> On 30-4-2017 9:48, Thomas de Groot wrote:
>> In fact, the differences are more subtle. For the cube, compare the
>> shadows of dragon and egg: their edges show the stone's translucency. In
>> my next render I hope to show this better.
>>
> 
> In this render:
> 
> - Dragon: no SSLT
> - Floor: no SSLT
> - Cube: SSLT with 5*translucency vector (was 2* in earlier example)
> - Egg: SSLT with 3*translucency vector (was 2* in earlier example)
> 
> The cube is showing markedly more translucency in the shadows cast on 
> it. I see not much difference in the egg, although if I increase the 
> translucency exaggeratedly (*100 for instance) the effect becomes 
> distorted.
> 
> Question: In the wiki about SSLT it is said: "The effect doesn't scale 
> with the object". Does this mean that SSLT works in the same way as a 
> scattering media where the amount of scattering has to be compensated 
> for the amount of media object's scale? It appears so to me at least 
> although this is not mentioned in the wiki.
> 

It does work similarly to medias, both emissive, absorbing and scattering.

So, if you scale your scene by 10 and want SSLT to look the same, then 
you need to multiply your SSLT vector by 10. Alternately, you can 
increase mm_per_unit by the same amount in the global_settings block.

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