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On 08/10/2015 03:40 PM, MichaelJF wrote:
> I'm not quiet sure if I can enter the image into the actual TC-RTC competition.
> First the link to the topic is only the connection about a journey which is a
> bit weak.
I think it's plenty good enough for the topic. If you think it's too
weak, you can always include an ars... I mean, back story in the
description.
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On 8/10/2015 10:01 PM, Cousin Ricky wrote:
> On 08/10/2015 03:40 PM, MichaelJF wrote:
>> I'm not quiet sure if I can enter the image into the actual TC-RTC
>> competition.
>> First the link to the topic is only the connection about a journey
>> which is a
>> bit weak.
>
> I think it's plenty good enough for the topic. If you think it's too
> weak, you can always include an ars... I mean, back story in the
> description.
>
Infamy, infamy. They have all got it in for me. ;-)
--
Regards
Stephen
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I really love the sun light in the trees. It's wonderful :-)
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"MichaelJF" <mi-### [at] t-online de> wrote:
> Playing around with media to model a sunrise I came up with the following image
> finally.
>
> And yes, there are people trying to walk a rope between hot air balloons. They
> rely on their parachutes.
>
> For the balloons I took an IRTC-Entry by Neil Alexander as starting point.
> Image_maps of Earth and Mars are from NASA of course.
>
> Enjoy and best regards,
> Michael
Wow, looks so wonderful.
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clipka <ano### [at] anonymousorg> wrote:
> Am 09.08.2015 um 19:06 schrieb MichaelJF:
> > Playing around with media to model a sunrise I came up with the following image
> > finally.
>
> The media, trees and far-off balloons look gorgeous!
>
> > And yes, there are people trying to walk a rope between hot air balloons. They
> > rely on their parachutes.
>
> I think the tightrope walker is a bit too large; maybe 70% of its size
> should be a better fit.
>
> > For the balloons I took an IRTC-Entry by Neil Alexander as starting point.
> > Image_maps of Earth and Mars are from NASA of course.
>
> I'm not so happy with the Earth, Mars, red-white striped, and
> yellow-orange banded balloons; they look as if they didn't receive any
> sunlight, while instead glowing on their surface.
>
> If this is supposed to be glow from the propane burners, it should be
> (1) darker, (2) more coloured, and (3) be more intense near the bottom
> of each balloon. One way to achieve this might be to place light sources
> at the propane burner locations with proper distance-based falloff, and
> use arse... um, I mean, backside illumination on the balloon skins
> ("diffuse X,Y" or, better yet, "diffuse albedo X,Y", where X+Y < 1).
I tried a rendering with Uberpov today (+am3 +a0.01 +ac0.9 Count 10, as you
suggested somewhere here). In comparison to my first entry the result is not
very convincing.
Best regards,
Michael
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Attachments:
Download 'planetary journey uberpov.png' (442 KB)
Preview of image 'planetary journey uberpov.png'
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Am 09.08.2015 um 19:26 schrieb clipka:
> Am 09.08.2015 um 19:06 schrieb MichaelJF:
>> Playing around with media to model a sunrise I came up with the
>> following image
>> finally.
>
> The media, trees and far-off balloons look gorgeous!
>
>> And yes, there are people trying to walk a rope between hot air
>> balloons. They
>> rely on their parachutes.
>
> I think the tightrope walker is a bit too large; maybe 70% of its size
> should be a better fit.
>
>> For the balloons I took an IRTC-Entry by Neil Alexander as starting
>> point.
>> Image_maps of Earth and Mars are from NASA of course.
>
> I'm not so happy with the Earth, Mars, red-white striped, and
> yellow-orange banded balloons; they look as if they didn't receive any
> sunlight, while instead glowing on their surface.
>
> If this is supposed to be glow from the propane burners, it should be
> (1) darker, (2) more coloured, and (3) be more intense near the bottom
> of each balloon. One way to achieve this might be to place light sources
> at the propane burner locations with proper distance-based falloff, and
> use arse... um, I mean, backside illumination on the balloon skins
> ("diffuse X,Y" or, better yet, "diffuse albedo X,Y", where X+Y < 1).
>
Sorry for the short delay of now some five years. I was occupied by some
RL issues a while and frustrated after loosing all codes by a headcrash
on a very new harddrive. Nearly, I had finished a very nice scene (The
Lonely Swan) and lost all the code. Later I experienced a very heavy
work load and at the beginning of this year a very severe disease of the
lung. Now I bought a new machine and thought that this open issue would
be a very nice test (core i7 vs. core i9). I rendered the image due to
Clipkas suggestions with diffuse albedo 0.5,0.4 on all balloons. It has
an little bit different mood since the colouring of the balloons is more
visible in the distance. The backside illumination has a severe
drewback: it doesn't work with the colour Blue.
Enjoy
Michael
Post a reply to this message
Attachments:
Download '20200805_aplanetaryjourney.png' (882 KB)
Preview of image '20200805_aplanetaryjourney.png'
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On 8/5/20 12:46 PM, MichaelJF wrote:
...
> Now I bought a new machine and thought that this open issue would
> be a very nice test (core i7 vs. core i9). I rendered the image due to
> Clipkas suggestions with diffuse albedo 0.5,0.4 on all balloons. It has
> an little bit different mood since the colouring of the balloons is more
> visible in the distance. The backside illumination has a severe
> drewback: it doesn't work with the colour Blue.
>
Welcome back! I've been otherise hacking at the source code today so
took a quick look at the related code on seeing your post.
I don't see anything obvious against blue. My guess is it's that the
blues of your balloons are quite dark. When the code multiplies the dark
blue value by the backside value*(light * etc) there just isn't much of
an adder. Dark+dark still ends up pretty dark - more true if your light
source doesn't have much blue in it; If it's flame colored.
I've played a little with making the backside values larger than they
'should be' but probably that cheat won't work well with, for example,
your world map where the bottom looks to be mostly white-ish. Maybe just
brighten the blues some on balloons with a lot of dark blue <1,1,2>*...?
I like the image. It reminds me of a balloon festival I attended a
couple times, now 20 years or more ago. Time flies.
Bill P.
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Op 05/08/2020 om 18:46 schreef MichaelJF:
> Sorry for the short delay of now some five years. I was occupied by some
> RL issues a while and frustrated after loosing all codes by a headcrash
> on a very new harddrive. Nearly, I had finished a very nice scene (The
> Lonely Swan) and lost all the code. Later I experienced a very heavy
> work load and at the beginning of this year a very severe disease of the
> lung. Now I bought a new machine and thought that this open issue would
> be a very nice test (core i7 vs. core i9). I rendered the image due to
> Clipkas suggestions with diffuse albedo 0.5,0.4 on all balloons. It has
> an little bit different mood since the colouring of the balloons is more
> visible in the distance. The backside illumination has a severe
> drewback: it doesn't work with the colour Blue.
>
> Enjoy
> Michael
>
Welcome back indeed!
I compared to the original scene from 2015. I prefer the original. Maybe
you could decrease both the diffuse albedo and the backside illumination
of the balloons a bit? Or maybe only the diffuse albedo as I think it is
too strong for the remainder of the scene. If I remember correctly from
the times I use diffuse albedo, it looks much stronger than the classic
diffuse and has to be tempered.
--
Thomas
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Am 05.08.2020 um 20:19 schrieb William F Pokorny:
> On 8/5/20 12:46 PM, MichaelJF wrote:
> ....
>> Now I bought a new machine and thought that this open issue would be a
>> very nice test (core i7 vs. core i9). I rendered the image due to
>> Clipkas suggestions with diffuse albedo 0.5,0.4 on all balloons. It
>> has an little bit different mood since the colouring of the balloons
>> is more visible in the distance. The backside illumination has a
>> severe drewback: it doesn't work with the colour Blue.
>
> Welcome back! I've been otherise hacking at the source code today so
> took a quick look at the related code on seeing your post.
>
> I don't see anything obvious against blue. My guess is it's that the
> blues of your balloons are quite dark. When the code multiplies the dark
> blue value by the backside value*(light * etc) there just isn't much of
> an adder. Dark+dark still ends up pretty dark - more true if your light
> source doesn't have much blue in it; If it's flame colored.
>
> I've played a little with making the backside values larger than they
> 'should be' but probably that cheat won't work well with, for example,
> your world map where the bottom looks to be mostly white-ish. Maybe just
> brighten the blues some on balloons with a lot of dark blue <1,1,2>*...?
>
> I like the image. It reminds me of a balloon festival I attended a
> couple times, now 20 years or more ago. Time flies.
>
> Bill P.
Hi Bill, thanks for your looking into the codes. I can report my results
only. The balloons in the enclosed image are all rendered with
#declare BText11 = texture {
pigment { color Red }
#if (TransparentTex)
finish { diffuse albedo 0.55,0.4 }
#end
}
at the position of the red balloon in the original image. Red exchanged
to Green or Blue from colors.inc of course. Green seems to be most
addictive to backlight illumination. Blue seems to be ignorant to this
feature. Without the albedo I got similiar results.
I wanted to report my observations, I cannot see an urgend need to
investigate this issue. Seems, I'm the first after the release of this
issue who noticed this.
Best regards
Michael
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Attachments:
Download 'rgb.png' (17 KB)
Preview of image 'rgb.png'
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Am 06.08.2020 um 08:36 schrieb Thomas de Groot:
> Op 05/08/2020 om 18:46 schreef MichaelJF:
>> Sorry for the short delay of now some five years. I was occupied by
>> some RL issues a while and frustrated after loosing all codes by a
>> headcrash on a very new harddrive. Nearly, I had finished a very nice
>> scene (The Lonely Swan) and lost all the code. Later I experienced a
>> very heavy work load and at the beginning of this year a very severe
>> disease of the lung. Now I bought a new machine and thought that this
>> open issue would be a very nice test (core i7 vs. core i9). I rendered
>> the image due to Clipkas suggestions with diffuse albedo 0.5,0.4 on
>> all balloons. It has an little bit different mood since the colouring
>> of the balloons is more visible in the distance. The backside
>> illumination has a severe drewback: it doesn't work with the colour Blue.
>>
>> Enjoy
>> Michael
>>
>
> Welcome back indeed!
>
> I compared to the original scene from 2015. I prefer the original. Maybe
> you could decrease both the diffuse albedo and the backside illumination
> of the balloons a bit? Or maybe only the diffuse albedo as I think it is
> too strong for the remainder of the scene. If I remember correctly from
> the times I use diffuse albedo, it looks much stronger than the classic
> diffuse and has to be tempered.
>
Hello Thomas,
I agree completely. I Like the original better as well. But I wanted to
give Clipkas proposals a try and it was an excellent test to my new
machine. If I ever come up with the idea of a night glow scene I will
revisit this scene.
Best regards
Michael
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