Am 02.05.2017 um 08:51 schrieb Thomas de Groot:
> On 2-5-2017 5:57, Alain wrote:
> [snip]
>>
>> You should set it according to the overall scale of your scene.
>> The default of 10 mean 1 POV unit = 1 cm. Set it to 1000 if your scale
>> is 1 POV unit = 1 m, and 25.4 for 1 inch = 1 POV unit.
>>
>> In my suggestion, it would make a scene scalled in cm work in mm. So,
>> you can change mm_per_unit from it's default of 10 to 1 to reflect the
>> change in overall scale.
>>
>>
> 
> As I wrote in my answer to Stephen, I am shamefully negligent about
> overall scales and just throw together elements to be brewed in the same
> pot. I need to be a bit more careful if I want to include SSLT. :-)

Technically, you only need to be careful if you intend to re-use (or
have others re-use) your SSLT stuff in any other scene.

For instance, if you've concocted a convincing ivory material, that
ivory material will only look convincing in other scenes if both your
original scene and the new scene have proper mm_per_unit settings (or if
both have the mm_per_unit setting screwed up by the same factor).

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On 5/2/2017 7:52 PM, clipka wrote:
> Am 01.05.2017 um 14:06 schrieb Stephen:

>>>
>>
>> My understanding is that the mm_per_unit is the world/scene scale
>
> Indeed.
>
> Also, I might take the opportunity to re-iterate that it is not an SSLT
> setting /per se/. It only just so happens that SSLT is currently the
> only feature that makes use of it.
>

Yet? :-)

-- 

Regards
     Stephen

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Am 02.05.2017 um 10:03 schrieb Stephen:

>> Ah! The Clipka! He seems to have gone on holiday? Shame. He /knows/ he
>> cannot go without our permission. ;-)
>>
> 
> As long as he hasn't taken a marching band with him. It is okay. ;-)

Nah, no marching band for me yet.

But eight bells for someone dear.

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On 5/2/2017 8:44 PM, clipka wrote:
> Am 02.05.2017 um 10:03 schrieb Stephen:
>
>>> Ah! The Clipka! He seems to have gone on holiday? Shame. He /knows/ he
>>> cannot go without our permission. ;-)
>>>
>>
>> As long as he hasn't taken a marching band with him. It is okay. ;-)
>
> Nah, no marching band for me yet.
>
> But eight bells for someone dear.
>

Sorry to hear that. :-(

-- 

Regards
     Stephen

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On 2-5-2017 21:44, clipka wrote:
> Am 02.05.2017 um 10:03 schrieb Stephen:
>
>>> Ah! The Clipka! He seems to have gone on holiday? Shame. He /knows/ he
>>> cannot go without our permission. ;-)
>>>
>>
>> As long as he hasn't taken a marching band with him. It is okay. ;-)
>
> Nah, no marching band for me yet.
>
> But eight bells for someone dear.
>

Well, I am very sorry to hear that, Christoph. You have my sincere support.

-- 
Thomas

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On 2-5-2017 20:47, clipka wrote:
> Am 30.04.2017 um 13:05 schrieb Thomas de Groot:
>
>> 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.
>
> That depends on what you want to achieve.
>
> If you want the object to look like a larger item made of the same
> material, scale the object and use the same SSLT parameters.
>
> If you want the object to look exactly the same, but take up a larger
> portion on the screen, scale the object and adjust the SSLT parameters.
> (Or zoom in on the object ;))
>

Hmmm... yes, that is well put. I guess I have to ponder this a bit and 
add it to my own little reminders.

Thanks a lot!

-- 
Thomas

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On 2-5-2017 21:04, clipka wrote:
> Am 02.05.2017 um 08:51 schrieb Thomas de Groot:
>> On 2-5-2017 5:57, Alain wrote:
>> [snip]
>>>
>>> You should set it according to the overall scale of your scene.
>>> The default of 10 mean 1 POV unit = 1 cm. Set it to 1000 if your scale
>>> is 1 POV unit = 1 m, and 25.4 for 1 inch = 1 POV unit.
>>>
>>> In my suggestion, it would make a scene scalled in cm work in mm. So,
>>> you can change mm_per_unit from it's default of 10 to 1 to reflect the
>>> change in overall scale.
>>>
>>>
>>
>> As I wrote in my answer to Stephen, I am shamefully negligent about
>> overall scales and just throw together elements to be brewed in the same
>> pot. I need to be a bit more careful if I want to include SSLT. :-)
>
> Technically, you only need to be careful if you intend to re-use (or
> have others re-use) your SSLT stuff in any other scene.
>
> For instance, if you've concocted a convincing ivory material, that
> ivory material will only look convincing in other scenes if both your
> original scene and the new scene have proper mm_per_unit settings (or if
> both have the mm_per_unit setting screwed up by the same factor).
>

Yes, that was what I thought indeed.

-- 
Thomas

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As far as I am concerned, the final version. I streamlined the code for 
better reproducibility, made an area_light of the spotlight, and 
increased the translucency of the cube. Using: +am3 +a0.01 +ac0.95 +r4

-- 
Thomas

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Attachments:
Download 'sslt_test_uber_final.png' (673 KB)

Preview of image 'sslt_test_uber_final.png'

On 5/6/2017 11:51 AM, Thomas de Groot wrote:
> As far as I am concerned, the final version. I streamlined the code for
> better reproducibility, made an area_light of the spotlight, and
> increased the translucency of the cube. Using: +am3 +a0.01 +ac0.95 +r4
>

Excellent job.

-- 

Regards
     Stephen

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On 6-5-2017 13:03, Stephen wrote:
> On 5/6/2017 11:51 AM, Thomas de Groot wrote:
>> As far as I am concerned, the final version. I streamlined the code for
>> better reproducibility, made an area_light of the spotlight, and
>> increased the translucency of the cube. Using: +am3 +a0.01 +ac0.95 +r4
>>
>
> Excellent job.
>

Thanks indeed. For the curious, I am going to put the material macros 
used in p.t.scene-files.

-- 
Thomas

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