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On 2019-05-04 3:22 PM (-4), Cousin Ricky wrote:
> On 2019-05-04 8:39 AM (-4), Jörg "Yadgar" Bleimann wrote:
>> It still took my Pentium IV single-core laptop 53 minutes to complete
>> (1024 by 768, using AA 0.3)... I wonder how long it may have taken on
>> Mark King's computer back in 1998!
>
> My render looks a lot different; I think it's because of the radiosity {
> brightness 3 } setting. When I render it with +Q8, it looks like yours.
> My next step will be to lower the brightness, and maybe turn off the
> ambient.
>
> I used POV-Ray 3.5 for Unix (official Linux compile) with Version=3.1 on
> the command line. At +Q8, my Core i7 laptop took 21 minutes, 40 seconds
> for 1000 by 750 (no AA because DoF is used), obviously using only 1
> thread. I do not remember the statistics for the radiosity render.
I modified the scene to lower the radiosity brightness and kill the
ambient light. I also added a pretrace_end, and deleted the
distance_maximum so that the scene would render with POV 3.7. Setting
assumed_gamma to 1.0 changed the entire mood of the scene, so I left it
at 2.2.
Rendering without AA took 5 minutes, 16 seconds of elapsed time using 8
threads on my quad core. POV 3.7 can do AA with DoF, and this is what I
attached here. The elapsed render time was 11 minutes, 31 seconds with
+A0.3 +AM1 +R3.
This is a diff of my modifications:
--------------------[BEGIN DIFF]--------------------
12a13,17
> /* Edited 2019-May-04 by Richard Callwood III to lower the radiosity
brightness
> * and kill the ambient light.
> */
> #version 3.1; // RC3, 2019-05-04
>
30c35
< brightness 3.3
---
> brightness 1 // RC3, 2019-05-04
32c37
< distance_maximum 25.0
---
> //distance_maximum 25.0 // RC3, 2019-05-04
37a43
> pretrace_end 0.0025 // RC3, 2019-05-04
39a46
> ambient_light rgb 0 // RC3, 2019-05-04
---------------------[END DIFF]---------------------
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