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I've just noticed one thing: the helix column on the right looks like it's
directly lit by the sky. Probably a radiosity accuracy problem.
--
Jonathan.
"Mick Hazelgrove" <mic### [at] mhazelgrove fsnet co uk> ha scritto nel messaggio
news:3bf4295c@news.povray.org...
> From: "Mick Hazelgrove" <mic### [at] mhazelgrove fsnet co uk>
> Subject:
> Date: 15 November 2001 20:13
>
> Hi
>
> Notice the black marks aon the window arches. Any ideas what is causing
them
> or how I can get rid of them?
>
> I suspect they are due to radiosity settings. The arches are basic
triangle
> meshes created in hamapatch and converted to pov by 3dwin.
>
> Radiosity settings I'm using
>
> radiosity{
> pretrace_start 1//0.08
> pretrace_end 1//0.04 //.004
> count 400 // 2-400 in final
> nearest_count 8
> error_bound 0.15
> recursion_limit 2
> low_error_factor 0.5
> gray_threshold 0
> minimum_reuse 0.015
> brightness 1.0
> adc_bailout 0.01/2
> normal on
> media on
> }
>
> Any help gratefully received
>
> Mick
>
>
>
>
>
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Yes I noticed that - it might be lit from behind as there is a gap in the
wall I'll have to move it to find out.
Mick
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JRG wrote:
>
> He he... it looks like posting messages with already-used titles is becoming
> a very common mistake (in your case the message was attached to another
> <no-title> message posted many months ago by... YOU (again) :-D
The mistake is not that the person put in a preexisting subject line,
it's that the newsreader can't thread properly...
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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I have a suggestion not related to the radiosity problem:
The arches look a bit odd. They would break down in the real world, because
they don't lie on the wall and the forces from above can't go to the bottom.
Make the windows a bit smaller or the arch wider.
I hope my english was clear enough to give you an understanding of what I'm
trying to say. It's difficult for me to explain something in a foreign
language when the discussion is about architecture or other special
fields...
So long,
Bonsai
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Nice pic :)
Are the pillars supposed to be rounded like that at the bottom? It wouldn't
really do the job of a pillar that way. Unless of course it's reinforced with
steel...
--
- Nekar
http://nekar_xenos.tripod.com/metanoia/
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.286 / Virus Database: 152 - Release Date: 2001/10/09
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news: 3bf42f19@news.povray.org...
> Yes I noticed that - it might be lit from behind as there is a gap in the
> wall I'll have to move it to find out.
Perhaps related : I recently came upon a similar problem where rad light
managed to pass between two coincident boxes (a wall on a floor). The
problem disappeared when the wall was slightly lowered into the floor. I now
make sure that objects do not totally coincide.
G.
--
**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters
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"Bonsai" <bon### [at] b0n541 net> wrote in message
news:3bf4cc82@news.povray.org...
> The arches look a bit odd. They would break down in the real world,
because
> they don't lie on the wall and the forces from above can't go to the
bottom.
> Make the windows a bit smaller or the arch wider.
Don't worry ther's another bit to go in when I've finished modelling it that
will support the arch!
Mick
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"Nekar Xenos" <j-p### [at] citywalk co za> wrote in message
news:3bf4ce22@news.povray.org...
> Are the pillars supposed to be rounded like that at the bottom? It
wouldn't
> really do the job of a pillar that way. Unless of course it's reinforced
with
> steel...
Nope this is a WIP with a long, long way to go... I was hoping someone could
help with the black marks on the mesh.
Mick
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news: 3bf4295c@news.povray.org...
> Notice the black marks aon the window arches. Any ideas what is causing
them
> or how I can get rid of them?
Just thought of something (of little help) : there's an old problem with
smoothed meshes, even high-res ones, that makes the outline of a mesh black
and very apparent in some places, even with radiosity. I've been living with
this for a long while (it may be not very noticeable when the texture is
dark) but I don't have a workaround. In fact I had to brush out these
artefacts in a image editor more than once.
I guess it's worth a note in povray.pre-beta though, if only to have this
mentioned in the documentation.
G.
--
**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters
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"Mick Hazelgrove" <mic### [at] mhazelgrove fsnet co uk> wrote in message
news:3bf4295c@news.povray.org...
> From: "Mick Hazelgrove" <mic### [at] mhazelgrove fsnet co uk>
> Subject:
> Date: 15 November 2001 20:13
>
> Hi
>
> Notice the black marks aon the window arches. Any ideas what is causing them
> or how I can get rid of them?
>
> I suspect they are due to radiosity settings. The arches are basic triangle
> meshes created in hamapatch and converted to pov by 3dwin.
>
> Radiosity settings I'm using
>
> radiosity{
> pretrace_start 1//0.08
> pretrace_end 1//0.04 //.004
> count 400 // 2-400 in final
> nearest_count 8
> error_bound 0.15
> recursion_limit 2
> low_error_factor 0.5
> gray_threshold 0
> minimum_reuse 0.015
> brightness 1.0
> adc_bailout 0.01/2
> normal on
> media on
> }
>
Well, except for one potentially problematic spot on the rightmost keystone, I
don't think this will really be an issue for you as you progress. Realistically,
dirt and grime will collect in these same areas making them darker anyway.
OK. This isn't a solution. But, if it is difficult to correct as Gilles
suggests, maybe this will help you move on. :D
Batronyx ^"^
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