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Hi there,
I've recently started using PlantStudio (which is now free, btw), but
I've run into a problem. While it's a brilliant piece of software it
seems to be missing the option of exporting smooth meshes, resulting in
nasty jagged edges all over the leaves. I see two ways out of this -
take the time and energy to create leaves with a large number of
triangles and then import them into PlantStudio (it has a simple 3D
format), or find a utility to subdivide the output from PS. Has anyone
else had similar troubles and found a way round them? Does anyone know
of a utility suitable for this?
If no-one has found a better way I expect I'll try and find a way of
using JVS's surface subdivision suite to smooth the leaves out.
Andrew
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In article <3eb6ae70@news.povray.org>,
"Andrew" <ast### [at] hotmail com> wrote:
> While it's a brilliant piece of software it seems to be missing the
> option of exporting smooth meshes, resulting in nasty jagged edges
> all over the leaves.
Smooth triangles only affect the shading, they will not help with the
jagged edges. For that, you need to actually subdivide the geometry into
more triangles.
--
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/
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> Smooth triangles only affect the shading, they will not help with the
> jagged edges. For that, you need to actually subdivide the geometry
into
> more triangles.
True enough.
I guess subdivision is by far the better option, especially as I could
import a subdivided mesh into PlantStudio. Smooth_triangles would be
nice too, but the problem is that they have to be generated after the
program has produced its output.
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As far as I remember there was a bug in smooth_triangle
(it didn't work properly on object edges).
Therefore I refrained from using it in POV-Tree.
Was it fixed?
Gena.
Andrew wrote:
> Hi there,
>
> I've recently started using PlantStudio (which is now free, btw), but
> I've run into a problem. While it's a brilliant piece of software it
> seems to be missing the option of exporting smooth meshes, resulting in
> nasty jagged edges all over the leaves. I see two ways out of this -
> take the time and energy to create leaves with a large number of
> triangles and then import them into PlantStudio (it has a simple 3D
> format), or find a utility to subdivide the output from PS. Has anyone
> else had similar troubles and found a way round them? Does anyone know
> of a utility suitable for this?
>
> If no-one has found a better way I expect I'll try and find a way of
> using JVS's surface subdivision suite to smooth the leaves out.
>
> Andrew
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On Tue, 06 May 2003 10:36:47 -0700, Gena <obu### [at] mailcom> wrote:
> As far as I remember there was a bug in smooth_triangle
> (it didn't work properly on object edges).
> Therefore I refrained from using it in POV-Tree.
Smooth triangles are refered in following reports:
http://news.povray.org/povray.bugreports/7423/
http://news.povray.org/povray.bugreports/7693/
http://news.povray.org/povray.bugreports/7725/
and all are connected with 3.1 version. Current official is 3.5. I do not
remember similiar report for 3.5. Can you describe more which bug you mean ?
ABX
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See the thread in povray.binaries.images with subject: 'Smoothed mesh bug'
Gena.
ABX wrote:
> On Tue, 06 May 2003 10:36:47 -0700, Gena <obu### [at] mailcom> wrote:
> > As far as I remember there was a bug in smooth_triangle
> > (it didn't work properly on object edges).
> > Therefore I refrained from using it in POV-Tree.
>
> Smooth triangles are refered in following reports:
> http://news.povray.org/povray.bugreports/7423/
> http://news.povray.org/povray.bugreports/7693/
> http://news.povray.org/povray.bugreports/7725/
> and all are connected with 3.1 version. Current official is 3.5. I do not
> remember similiar report for 3.5. Can you describe more which bug you mean ?
>
> ABX
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In article <3EB7FFD4.A4A2B95B@mail.com> , Gena <obu### [at] mailcom> wrote:
> See the thread in povray.binaries.images with subject: 'Smoothed mesh bug'
That is not a bug. Use double_illuminate as explained in that thread.
Thorsten
____________________________________________________
Thorsten Froehlich
e-mail: mac### [at] povrayorg
I am a member of the POV-Ray Team.
Visit POV-Ray on the web: http://mac.povray.org
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Thorsten Froehlich wrote:
> In article <3EB7FFD4.A4A2B95B@mail.com> , Gena <obu### [at] mailcom> wrote:
>
>
>>See the thread in povray.binaries.images with subject: 'Smoothed mesh bug'
>
>
> That is not a bug. Use double_illuminate as explained in that thread.
>
With a tree generator and leafs this might not be an option.
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In article <3eb8102b@news.povray.org> , Simon Adameit
<sim### [at] gaussschule-bsde> wrote:
> With a tree generator and leafs this might not be an option.
If you abuse meshes, don't expect them to react friendly. They are
"meshes", not "collections of individual, unconnected triangles".
Thorsten
____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde
Visit POV-Ray on the web: http://mac.povray.org
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Thorsten Froehlich wrote:
> In article <3eb8102b@news.povray.org> , Simon Adameit
> <sim### [at] gaussschule-bsde> wrote:
>
> > With a tree generator and leafs this might not be an option.
>
> If you abuse meshes, don't expect them to react friendly. They are
> "meshes", not "collections of individual, unconnected triangles".
Here is the description of the problem:
http://www.povray.org/documentation/view/358/
As a matter of fact I didn't know about that problem and implemented
export of smooth_triangle mesh in POV-Tree and faced the problem.
First, I also thought that my algorithm is wrong and that I "abuse" mesh
:)
I checked the code and it was correct then I found that post. So I
decided to stay away from smooth_triangles because double illuminate
doesn't work for trees in most cases (also it doubles filesize :)
Hopefully
POV-Ray 4.0 will resolve the problem.
Gena.
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