POV-Ray : Newsgroups : povray.binaries.images : Paris by night Server Time
28 Mar 2024 09:23:45 EDT (-0400)
  Paris by night (Message 5 to 14 of 14)  
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From: Mike Horvath
Subject: Re: Paris by night
Date: 20 Aug 2018 17:33:29
Message: <5b7b33a9$1@news.povray.org>
On 8/20/2018 7:38 AM, Thomas de Groot wrote:
> The bloom came out a bit stronger than I intended, especially in 
> relation to the street media. I had noted this for the future state. :-)
> 
> Render time is so long that I postpone any new version to 2020 at least...
> 

How many cores does your CPU have, now? Computer GHz have sort of 
stagnated, and CPUs with more than 6 cores can cost as much as a typical 
PC all by themselves. Also, you may want to wait until mitigations for 
Meltdown and Spectre have made it into new CPU architectures.


Mike


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From: Bald Eagle
Subject: Re: Paris by night
Date: 20 Aug 2018 18:50:01
Message: <web.5b7b45714fa7fe4f458c7afe0@news.povray.org>
Thomas de Groot <tho### [at] degrootorg> wrote:

> Render time is so long that I postpone any new version to 2020 at least...

Meh.   Wait a little while, and you may get it done faster than you think.

http://www.jbis.org.uk/paper.php?p=2006.59.239


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From: Ton
Subject: Re: Paris by night
Date: 20 Aug 2018 20:30:00
Message: <web.5b7b5cbf4fa7fe4fc661c7ca0@news.povray.org>
The atmosphere is good. Lighting is usually the most difficult to get right,
especially in scenes like this, with not much light.

Well done Thomas, I could learn a thing or two here.

Cheers
Ton.


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From: Thomas de Groot
Subject: Re: Paris by night
Date: 21 Aug 2018 02:42:03
Message: <5b7bb43b$1@news.povray.org>
On 20-8-2018 23:33, Mike Horvath wrote:
> On 8/20/2018 7:38 AM, Thomas de Groot wrote:
>> The bloom came out a bit stronger than I intended, especially in 
>> relation to the street media. I had noted this for the future state. :-)
>>
>> Render time is so long that I postpone any new version to 2020 at 
>> least...
>>
> 
> How many cores does your CPU have, now? Computer GHz have sort of 
> stagnated, and CPUs with more than 6 cores can cost as much as a typical 
> PC all by themselves. Also, you may want to wait until mitigations for 
> Meltdown and Spectre have made it into new CPU architectures.
> 

Intel i7-2600, 64-bit, 3.40 GHz, 4 cores/8 threads (6 used for the render).

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Paris by night
Date: 21 Aug 2018 02:49:01
Message: <5b7bb5dd$1@news.povray.org>
On 21-8-2018 0:49, Bald Eagle wrote:
> Thomas de Groot <tho### [at] degrootorg> wrote:
> 
>> Render time is so long that I postpone any new version to 2020 at least...
> 
> Meh.   Wait a little while, and you may get it done faster than you think.
> 
> http://www.jbis.org.uk/paper.php?p=2006.59.239
> 
> 

LOL Yes indeed! However, the main reason is that I become tired of the 
scene and want to lay it on the shelf for a while. I am going to print 
this version and hang it on my wall. Time for scrutiny has started now.

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Paris by night
Date: 21 Aug 2018 03:06:57
Message: <5b7bba11$1@news.povray.org>
On 21-8-2018 2:28, Ton wrote:
> The atmosphere is good. Lighting is usually the most difficult to get right,
> especially in scenes like this, with not much light.
> 
> Well done Thomas, I could learn a thing or two here.
> 
> Cheers
> Ton.
> 
> 

Hartelijk dank!

Initially, the most difficult was to backward engineer from the 
photograph. Camera position/orientation, lens characteristics, all that 
is unknown from the start. Invaluable help came from the use of Tim 
Nikias' Glare macros which allow for a background image in the scene. 
That way I could reconstruct more easily perspective and size of the 
different street and building elements.

Lighting and media were/are the next pain in my right foot big toe. I am 
still not done there although I get gradually closer to what I want. 
Patience is the keyword.

Tim Nikias' site can be found here: http://www.nolights.de/index.html
However, I cannot find the Glare macros there anymore. Somebody any 
idea? Tim?

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Paris by night
Date: 21 Aug 2018 07:28:53
Message: <5b7bf775$1@news.povray.org>
On 21-8-2018 9:06, Thomas de Groot wrote:
> Tim Nikias' site can be found here: http://www.nolights.de/index.html
> However, I cannot find the Glare macros there anymore. Somebody any 
> idea? Tim?
> 

I found the Glare macros on Tim's old site, through the Wayback Machine:

https://web.archive.org/web/20031008070348/http://www.digitaltwilight.de:80/no_lights/download.html#Glare%20Macros

Interestingly, as there was a discussion not long ago here about an even 
distribution of points on a sphere, Tim provides a macro to do just 
that. Look for ESR, below the Glare macros.

-- 
Thomas


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From: Stephen
Subject: Re: Paris by night
Date: 23 Aug 2018 02:17:34
Message: <5b7e517e@news.povray.org>
On 20/08/2018 12:38, Thomas de Groot wrote:
> On 20-8-2018 12:28, Stephen wrote:
>> On 20/08/2018 08:24, Thomas de Groot wrote:
>>> I usually make several states of my work. This time, I revisited my 
>>> entry for the March 2011 Challenge of the TC-RTC:
>>>
>>> http://tc-rtc.ideasintoreality.co.uk/imagenewdisplay/stills/index325.html 
>>>
>>>
>>> Some minor changes and additions and a render performed with UberPOV 
>>> (stochastic aa) instead of Megapov in the original. All in all, 
>>> render time was in excess of 48 hours.
>>>
>>> In a few years time I probably shall render the next state. ;-)
>>>
>>
>>
>> I like the change in illumination around Cathy. I am not too sure 
>> about the bloom around the street lamps. The pattern does not reflect 
>> the mist at ground level.Also, I seem to remember that the bloom was 
>> centred just in front of the lamp. It has been a long time since I 
>> have been out in a night like that. :)
>>
> 
> The bloom came out a bit stronger than I intended, especially in 
> relation to the street media. I had noted this for the future state. :-)
> 
> Render time is so long that I postpone any new version to 2020 at least...
> 

The render time is a passion killer. ;-)

-- 

Regards
     Stephen


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From: Sven Littkowski
Subject: Re: Paris by night
Date: 16 Sep 2018 11:53:04
Message: <5b9e7c60$1@news.povray.org>
I would scale up the uncalmly sky a bit, maybe somewhere between 1.5 and 2.


The scene looks amazingly good, my congratulations.

I would add a very slight blur to almost the entire scene background,
but really just a very slight blur. Like dust (humidity) in the air
causes a slight blur.

---
Diese E-Mail wurde von AVG auf Viren geprüft.
http://www.avg.com


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From: Thomas de Groot
Subject: Re: Paris by night
Date: 17 Sep 2018 02:31:54
Message: <5b9f4a5a@news.povray.org>
On 16-9-2018 17:53, Sven Littkowski wrote:
> I would scale up the uncalmly sky a bit, maybe somewhere between 1.5 and 2.

Possibly. However, I want to keep as close to the original as possible.

> 
> The scene looks amazingly good, my congratulations.

Thanks. Took a lot of sweat over the years ;-)

> 
> I would add a very slight blur to almost the entire scene background,
> but really just a very slight blur. Like dust (humidity) in the air
> causes a slight blur.
> 

Again, keeping as close to the original as possible. However, I shall 
keep this in mind for a hypothetical next version.

-- 
Thomas


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