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I’ve not had time to do much Poving but I have worked on an old TC-RTC
entry ( The Bridge Builders - 2008). I was never happy with the clouds
or having to have a full Earth. I have managed to change the cloud plane
and have a waxing gibbous Earth with the night side lights showing.
The name is from a traditional Scottish Jacobite song The Sky boat song”
and the bridge is a model I made of the Forth rail bridge (SDL).
--
Regards
Stephen
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On 8-11-2012 22:41, Stephen wrote:
> I’ve not had time to do much Poving but I have worked on an old TC-RTC
> entry ( The Bridge Builders - 2008). I was never happy with the
> clouds or having to have a full Earth. I have managed to change the
> cloud plane and have a waxing gibbous Earth with the night side lights
> showing.
> The name is from a traditional Scottish Jacobite song The Sky boat song”
> and the bridge is a model I made of the Forth rail bridge (SDL).
>
The clouds are better than in the original. However, I miss the haze of
the original which gave a nice atmospheric distance to the scene. Here,
it would diffuse a bit the sharp edge of the gibbous Earth.
I know that you use Bishop3D, would it be possible to use there Bill
Pragnell's Moon technique to make an even better Earth view? However,
that might then interfere with the bridge crossing the atmospheric
sphere; which you could then solve by making the bridge diminish to a
point before that crossing; which would however hide more the Skye
terminus... ;-)
A technique I used in "First Contact" back in 2008 too:
http://news.povray.org/povray.binaries.images/thread/%3C47f79242%40news.povray.org%3E/?ttop=331022&toff=800&mtop=271206
Thomas
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I have to agree with Thomas. May be the optimum is somewhere between both
versions. I missed the haze too. Now the picture has a little bit to much
brightness IMO, but we can see where the bridge ends :). At the missing half of
the earth there seems to be a kind of structure - only some points. Is it
intended?
Best regards,
Michael
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On 09/11/2012 8:50 AM, Thomas de Groot wrote:
> The clouds are better than in the original. However, I miss the haze of
> the original which gave a nice atmospheric distance to the scene. Here,
> it would diffuse a bit the sharp edge of the gibbous Earth.
>
Actually I like sharp images, but you do have a point.
> I know that you use Bishop3D, would it be possible to use there Bill
> Pragnell's Moon technique to make an even better Earth view?
Yes I could as I can include code to be rendered but I find that that
technique always gives me a washed out image and clouds that don't look
right.
> However, that might then interfere with the bridge crossing the atmospheric
> sphere; which you could then solve by making the bridge diminish to a
> point before that crossing; which would however hide more the Skye
> terminus... ;-)
> A technique I used in "First Contact" back in 2008 too:
>
http://news.povray.org/povray.binaries.images/thread/%3C47f79242%40news.povray.org%3E/?ttop=331022&toff=800&mtop=271206
>
I remember the post and it is an excellent image.
There was so much wrong with this scene. For one reason or another I
started with a scene that did not have any global settings and when I
added them I was so surprised at the difference that using Perlin
instead of PovRay 3.1 as a noise generator caused it took me ages to
find the cause of the discrepancy.
Anyway I have corrected a few faults in the bridge and here is the
latest rendering.
--
Regards
Stephen
Post a reply to this message
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Download 'frailb04_31fb_.jpg' (109 KB)
Preview of image 'frailb04_31fb_.jpg'
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On 09/11/2012 5:32 PM, MichaelJF wrote:
> I have to agree with Thomas. May be the optimum is somewhere between both
> versions. I missed the haze too. Now the picture has a little bit to much
> brightness IMO, but we can see where the bridge ends :). At the missing half of
> the earth there seems to be a kind of structure - only some points. Is it
> intended?
>
Yes Michael it is intended. They should be more visible in the latest
image. They are city lights on the dark side of the Earth. I used two
Earth maps and differenced the day and night spheres. On the night map I
used PNG image with an alpha channel to get the transparancy.
--
Regards
Stephen
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On 10-11-2012 19:17, Stephen wrote:
> On 09/11/2012 8:50 AM, Thomas de Groot wrote:
>> The clouds are better than in the original. However, I miss the haze of
>> the original which gave a nice atmospheric distance to the scene. Here,
>> it would diffuse a bit the sharp edge of the gibbous Earth.
>>
>
> Actually I like sharp images, but you do have a point.
Fair enough; You are the boss.
>
>> I know that you use Bishop3D, would it be possible to use there Bill
>> Pragnell's Moon technique to make an even better Earth view?
>
> Yes I could as I can include code to be rendered but I find that that
> technique always gives me a washed out image and clouds that don't look
> right.
Well, depends. Working with light_groups you could probably reach
identical results for the foreground.
>> A technique I used in "First Contact" back in 2008 too:
>>
http://news.povray.org/povray.binaries.images/thread/%3C47f79242%40news.povray.org%3E/?ttop=331022&toff=800&mtop=271206
>
> I remember the post and it is an excellent image.
Hmm. Seeing it again: it might need a serious overhaul. I shall do that
one day probably... ;-)
> Anyway I have corrected a few faults in the bridge and here is the
> latest rendering.
Well, in any case, the journey to Skye has been made much smoother now
;-) They can expect a lot of visitors from abroad.
Thomas
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Stephen <mca### [at] aol com> wrote:
> Yes Michael it is intended. They should be more visible in the latest
> image. They are city lights on the dark side of the Earth. I used two
> Earth maps and differenced the day and night spheres. On the night map I
> used PNG image with an alpha channel to get the transparancy.
>
>
> --
> Regards
> Stephen
Ah, now I understand them. Yes with the new version they are better to
apprehend. But why Skye? As I know you didn't like Talisker...
Best regards,
Michael
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Le 10/11/12 1:17 PM, Stephen a écrit :
> On 09/11/2012 8:50 AM, Thomas de Groot wrote:
>> The clouds are better than in the original. However, I miss the haze of
>> the original which gave a nice atmospheric distance to the scene. Here,
>> it would diffuse a bit the sharp edge of the gibbous Earth.
>>
>
> Actually I like sharp images, but you do have a point.
>
>> I know that you use Bishop3D, would it be possible to use there Bill
>> Pragnell's Moon technique to make an even better Earth view?
>
> Yes I could as I can include code to be rendered but I find that that
> technique always gives me a washed out image and clouds that don't look
> right.
>
>> However, that might then interfere with the bridge crossing the
>> atmospheric
>> sphere; which you could then solve by making the bridge diminish to a
>> point before that crossing; which would however hide more the Skye
>> terminus... ;-)
>> A technique I used in "First Contact" back in 2008 too:
>>
http://news.povray.org/povray.binaries.images/thread/%3C47f79242%40news.povray.org%3E/?ttop=331022&toff=800&mtop=271206
>>
>>
>
> I remember the post and it is an excellent image.
>
> There was so much wrong with this scene. For one reason or another I
> started with a scene that did not have any global settings and when I
> added them I was so surprised at the difference that using Perlin
> instead of PovRay 3.1 as a noise generator caused it took me ages to
> find the cause of the discrepancy.
> Anyway I have corrected a few faults in the bridge and here is the
> latest rendering.
>
>
>
Nice indeed.
Just my own little gripe...
It loks like the bridge's piles are to short, giving the impression that
the whole bridge is actualy floating on the water instead of resting on
the sea bed.
Having some concreete blocks under the legs could be good. Given the
distance they are at, using a simple gray or brownish gray boxes should
be enough. It would even be OK if you stopped having them about mid-way
to the clouds.
Alain
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On 11-11-2012 22:46, MichaelJF wrote:
> Ah, now I understand them. Yes with the new version they are better to
> apprehend. But why Skye? As I know you didn't like Talisker...
/Over the sea to Skye/ is part of the refrain from the Skye Boat Song:
http://en.wikipedia.org/wiki/The_Skye_Boat_Song
When I was younger, and playing the guitar, this was one of my
favourites :-)
Thomas
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Thomas de Groot <tho### [at] degrootorg> wrote:
> On 11-11-2012 22:46, MichaelJF wrote:
> > Ah, now I understand them. Yes with the new version they are better to
> > apprehend. But why Skye? As I know you didn't like Talisker...
>
> /Over the sea to Skye/ is part of the refrain from the Skye Boat Song:
>
> http://en.wikipedia.org/wiki/The_Skye_Boat_Song
>
> When I was younger, and playing the guitar, this was one of my
> favourites :-)
>
It is a fine song and one of a few boat songs, another good one is the Mingulay
Boat Song.
I believe that there is even a Skye Bridge song but that was a long time coming
as the bridge was first mooted at the end of the 19th Century. Ochone, ochone.
Stephen
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Am 10.11.2012 19:17, schrieb Stephen:
> Anyway I have corrected a few faults in the bridge and here is the
> latest rendering.
>
The bridge looks great but while I'm a fan of old school surreal
renderings the clouds are annoying me. Those 2d cumulus do look so faked
especially closer to the horizon but more important they make the image
look nervous and busy in a way IMO it shouldn't be. Just some swirly and
fluffy cirrus (like the one in the top center) would be much better, I
think.
Completely unrelated and almost off-topic (well, related to one of my
own numerous wip images):
Does corbies mean crows or ravens? Referring to the (a lot older than
Jacobian) Scottish ballad 'Twa Corbies'. I've always assumed crows (just
because of the 'C' I think) but also did find 'translations' to raven.
-Ive
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Ive <ive### [at] lilysoftorg> wrote:
> Am 10.11.2012 19:17, schrieb Stephen:
> > Anyway I have corrected a few faults in the bridge and here is the
> > latest rendering.
> >
> The bridge looks great but while I'm a fan of old school surreal
> renderings the clouds are annoying me. Those 2d cumulus do look so faked
> especially closer to the horizon but more important they make the image
> look nervous and busy in a way IMO it shouldn't be. Just some swirly and
> fluffy cirrus (like the one in the top center) would be much better, I
> think.
>
Thanks.
I agree with you about the clouds, it is a cloud plane. Do you have any
suggestions?
> Completely unrelated and almost off-topic (well, related to one of my
> own numerous wip images):
> Does corbies mean crows or ravens? Referring to the (a lot older than
> Jacobian) Scottish ballad 'Twa Corbies'. I've always assumed crows (just
> because of the 'C' I think) but also did find 'translations' to raven.
>
It depends where and when you are.
In Britain, in the Late Middle Ages it meant Raven.
The word is not used much in England and Wales, now. But it is still used in
Scotland to mean Crow.
You might still hear it in deepest Yorkshire where some people still use “thee
and thou”.
I used to drink in a pub cried (called) the Twa Corbies, if that’s of any
interest.
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Am 12.11.2012 17:35, schrieb Stephen:
> I agree with you about the clouds, it is a cloud plane. Do you have any
> suggestions?
Don't try to simulate cumulus clouds at all. A few fluffy high altitude
cirrus clouds can be simulated with just a plane quite well and would
fit to the overall style of the image.
Didn't Zeger post some 'fastcloud' macros recently? Never used it myself
but might be of use here.
>> Completely unrelated and almost off-topic (well, related to one of my
>> own numerous wip images):
>> Does corbies mean crows or ravens? Referring to the (a lot older than
>> Jacobian) Scottish ballad 'Twa Corbies'. I've always assumed crows (just
>> because of the 'C' I think) but also did find 'translations' to raven.
>>
>
> It depends where and when you are.
> In Britain, in the Late Middle Ages it meant Raven.
> The word is not used much in England and Wales, now. But it is still used in
> Scotland to mean Crow.
> You might still hear it in deepest Yorkshire where some people still use “thee
> and thou”.
Ah, thank you for the explanation, this makes it clear.
As with most traditional songs there are many different versions but my
favorite is about two corbies (maybe a couple) discussing the advantage
they have to make it through the coming winter because a knight lies
slain below their tree. E.g. using his long blond hair for nest building
or how delicious his eyeballs might taste.
> I used to drink in a pub cried (called) the Twa Corbies, if that’s of any
> interest.
>
Never bored by drinking stories ;)
-Ive
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Am 12.11.2012 15:33, schrieb Ive:
> Completely unrelated and almost off-topic (well, related to one of my
> own numerous wip images):
> Does corbies mean crows or ravens? Referring to the (a lot older than
> Jacobian) Scottish ballad 'Twa Corbies'. I've always assumed crows (just
> because of the 'C' I think) but also did find 'translations' to raven.
Given the striking similarities between the song "Twa Corbies" (as sung
by e.g. Steeleye Span) and the song "Three Ravens" (as sung by Peter,
Paul & Mary), I'd assume it's ravens.
If anyone, by the way, happens to have a complete text and/or
translation of "Twa Corbies", I'd be very much interested (please send
to Christoph at Lipka-Koeln,de)
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On 13/11/2012 3:57 AM, clipka wrote:
>
> Given the striking similarities between the song "Twa Corbies" (as sung
> by e.g. Steeleye Span) and the song "Three Ravens" (as sung by Peter,
> Paul & Mary), I'd assume it's ravens.
>
> If anyone, by the way, happens to have a complete text and/or
> translation of "Twa Corbies", I'd be very much interested (please send
> to Christoph at Lipka-Koeln,de)
GIYF ;-)
http://www.twocrows.co.uk/twa_corbies.html
It has a straight translation from Scots to English.
I don’t think that it really matters if they are crows or ravens, they
are of the same family after all. In Scotland and Ireland crows are
associated with death typified by the phrase “the crow road”. He’s awa
the crow road means he his dead. But it might be rhyming slang because
“the low road” is the way back you your home/country when you die. As in
the song "Loch Lomond" with the line “You take the high road and I’ll
take the low road”
--
Regards
Stephen
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On 12-11-2012 19:39, Ive wrote:
> Am 12.11.2012 17:35, schrieb Stephen:
>> I agree with you about the clouds, it is a cloud plane. Do you have any
>> suggestions?
>
> Don't try to simulate cumulus clouds at all. A few fluffy high altitude
> cirrus clouds can be simulated with just a plane quite well and would
> fit to the overall style of the image.
> Didn't Zeger post some 'fastcloud' macros recently? Never used it myself
> but might be of use here.
There is the /old/ macro which Zeger said he was updating, but I have
not seen that recently posted. The old macro is doing quite well however.
Thomas
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Thomas de Groot <tho### [at] degrootorg> wrote:
> On 12-11-2012 19:39, Ive wrote:
> > Am 12.11.2012 17:35, schrieb Stephen:
> >> I agree with you about the clouds, it is a cloud plane. Do you have any
> >> suggestions?
> >
> > Don't try to simulate cumulus clouds at all. A few fluffy high altitude
> > cirrus clouds can be simulated with just a plane quite well and would
> > fit to the overall style of the image.
> > Didn't Zeger post some 'fastcloud' macros recently? Never used it myself
> > but might be of use here.
>
> There is the /old/ macro which Zeger said he was updating, but I have
> not seen that recently posted. The old macro is doing quite well however.
>
Thanks Thomas, for confirming that. I searched last night but could only find
the 2004 one.
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On 13/11/2012 8:06 AM, Thomas de Groot wrote:
> There is the /old/ macro which Zeger said he was updating, but I have
> not seen that recently posted. The old macro is doing quite well however.
Not so much of a macro just clever coding. I left a slight cloud plane
just to take away the hard edges of the Earth. And no fog.
Thanks all.
--
Regards
Stephen
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