Hi everyone,
I have a problem displaying some NURBS surfaces with render–flat. Some
surfaces simply don’t get any color filling even if they appear as “normal”
NURBS surfaces in render – normal mode. Is this a known issue?
Thanks a lot,
N.
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Hello,
To show a surface in ‘render mode’ is necessary to create a “render mesh” (usually triangles).
Sometimes this render mesh can’t be created for some surfaces (usually closed surfaces or maybe bad defined ones) and then are not showed in render mode.
Maybe your surface is well defined and the mesh generator is able to generate an analysis mesh but not a render mesh, then you don’t need to worry about, but usually this kind of surfacer are also difficult to handle to generate the analysis mesh (maybe you need to manually split closed surfaces in two open parts, or replace some wrong surface)
----- Original Message -----
From: Nunzio Losacco
To: gidlist at gid.cimne.upc.edu
Sent: Monday, March 30, 2009 4:30 PM
Subject: [GiDlist] NURBS render
Hi everyone,
I have a problem displaying some NURBS surfaces with render–flat. Some surfaces simply don’t get any color filling even if they appear as “normal” NURBS surfaces in render – normal mode. Is this a known issue?
Thanks a lot,
N.
-------------- next part --------------
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Well, I’m not sure I understood properly. Anyway when drawing exactly the
same surface in GiD 9.0.2 rendering works perfectly.
I also tried software mode in GiD9.1.1b but this didn’t help.
Thank you,
Nunzio.
2009/3/31 Enrique Escolano escolano at cimne.upc.edu
Hello,
To show a surface in ‘render mode’ is necessary to create a “render mesh”
(usually triangles).
Sometimes this render mesh can’t be created for some surfaces (usually
closed surfaces or maybe bad defined ones) and then are not showed in render
mode.
Maybe your surface is well defined and the mesh generator is able to
generate an analysis mesh but not a render mesh, then you don’t need to
worry about, but usually this kind of surfacer are also difficult to
handle to generate the analysis mesh (maybe you need to manually split
closed surfaces in two open parts, or replace some wrong surface)
-------------- next part --------------
An HTML attachment was scrubbed…
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The surface that is not drawn in render mode is not related to any graphic card problem (is not necessary set OpenGL by software)
Maybe with GiD 9.0.2 you were using another render precision that with 9.1.1b
Preferences - Graphical - Surface precision (Render)
a higher precision value means a finer render mesh
Or maybe simple there is some small change between 9.0.2 and 9.1.1b that does that this surface is not render properly
Usually the most important is that this surface is able to be meshed for the anaylisis mesh (this analysis mesher try harder methods than the render mesher)
Send us a zip with your model to have a look.
Enrique
----- Original Message -----
From: Nunzio Losacco
To: gidlist at gid.cimne.upc.edu
Sent: Thursday, April 02, 2009 12:34 AM
Subject: Re: [GiDlist] NURBS render
Well, I’m not sure I understood properly. Anyway when drawing exactly the same surface in GiD 9.0.2 rendering works perfectly.
I also tried software mode in GiD9.1.1b but this didn’t help.
Thank you,
Nunzio.
2009/3/31 Enrique Escolano escolano at cimne.upc.edu
Hello,
To show a surface in ‘render mode’ is necessary to create a “render mesh” (usually triangles).
Sometimes this render mesh can’t be created for some surfaces (usually closed surfaces or maybe bad defined ones) and then are not showed in render mode.
Maybe your surface is well defined and the mesh generator is able to generate an analysis mesh but not a render mesh, then you don’t need to worry about, but usually this kind of surfacer are also difficult to handle to generate the analysis mesh (maybe you need to manually split closed surfaces in two open parts, or replace some wrong surface)
-------------- next part --------------
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Thanks for your interest. My analysis meshes are created normally so this is
not a crucial problem. It’s just a bit annoying when, for instance, I want
to quickly select the outer
surfaces of a complex model. In the attached file you will find the kind of
surfaces that give me problems. The left surface is correctly rendered and
it has been created with GiD 9.0.2. The right surface is basically the same
thing, but created with GiD9.1.1b and is not rendered. I checked the
Preference-- Graphical options and I have exactly the same (default)
settings in both versions of the program.
Thanks again,
Nunzio.
2009/4/2 Enrique Escolano escolano at cimne.upc.edu
The surface that is not drawn in render mode is not related to any
graphic card problem (is not necessary set OpenGL by software)
Maybe with GiD 9.0.2 you were using another render precision that with
9.1.1b
Preferences - Graphical - Surface precision (Render)
a higher precision value means a finer render mesh
Or maybe simple there is some small change between 9.0.2 and 9.1.1b that
does that this surface is not render properly
Usually the most important is that this surface is able to be meshed for
the anaylisis mesh (this analysis mesher try harder methods than the render
mesher)
Send us a zip with your model to have a look.
Enrique
----- Original Message -----
From: Nunzio Losacco nunzio.losacco at gmail.com
To: gidlist at gid.cimne.upc.edu
Sent: Thursday, April 02, 2009 12:34 AM
Subject: Re: [GiDlist] NURBS render
Well, I’m not sure I understood properly. Anyway when drawing exactly the
same surface in GiD 9.0.2 rendering works perfectly.
I also tried software mode in GiD9.1.1b but this didn’t help.
Thank you,
Nunzio.
2009/3/31 Enrique Escolano escolano at cimne.upc.edu
Hello,
To show a surface in ‘render mode’ is necessary to create a “render mesh”
(usually triangles).
Sometimes this render mesh can’t be created for some surfaces (usually
closed surfaces or maybe bad defined ones) and then are not showed in render
mode.
Maybe your surface is well defined and the mesh generator is able to
generate an analysis mesh but not a render mesh, then you don’t need to
worry about, but usually this kind of surfacer are also difficult to
handle to generate the analysis mesh (maybe you need to manually split
closed surfaces in two open parts, or replace some wrong surface)
-------------- next part --------------
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If you change the value of Surface render precision it will force to create again the render mesh,
then this surface ir rendered without problems.
----- Original Message -----
From: Nunzio Losacco
To: gidlist at gid.cimne.upc.edu
Sent: Thursday, April 02, 2009 3:59 PM
Subject: Re: [GiDlist] NURBS render
Thanks for your interest. My analysis meshes are created normally so this is not a crucial problem. It’s just a bit annoying when, for instance, I want to quickly select the outer
surfaces of a complex model. In the attached file you will find the kind of surfaces that give me problems. The left surface is correctly rendered and it has been created with GiD 9.0.2. The right surface is basically the same thing, but created with GiD9.1.1b and is not rendered. I checked the Preference-- Graphical options and I have exactly the same (default) settings in both versions of the program.
Thanks again,
Nunzio.
2009/4/2 Enrique Escolano escolano at cimne.upc.edu
The surface that is not drawn in render mode is not related to any graphic card problem (is not necessary set OpenGL by software)
Maybe with GiD 9.0.2 you were using another render precision that with 9.1.1b
Preferences - Graphical - Surface precision (Render)
a higher precision value means a finer render mesh
Or maybe simple there is some small change between 9.0.2 and 9.1.1b that does that this surface is not render properly
Usually the most important is that this surface is able to be meshed for the anaylisis mesh (this analysis mesher try harder methods than the render mesher)
Send us a zip with your model to have a look.
Enrique
----- Original Message -----
From: Nunzio Losacco
To: gidlist at gid.cimne.upc.edu
Sent: Thursday, April 02, 2009 12:34 AM
Subject: Re: [GiDlist] NURBS render
Well, I’m not sure I understood properly. Anyway when drawing exactly the same surface in GiD 9.0.2 rendering works perfectly.
I also tried software mode in GiD9.1.1b but this didn’t help.
Thank you,
Nunzio.
2009/3/31 Enrique Escolano escolano at cimne.upc.edu
Hello,
To show a surface in ‘render mode’ is necessary to create a “render mesh” (usually triangles).
Sometimes this render mesh can’t be created for some surfaces (usually closed surfaces or maybe bad defined ones) and then are not showed in render mode.
Maybe your surface is well defined and the mesh generator is able to generate an analysis mesh but not a render mesh, then you don’t need to worry about, but usually this kind of surfacer are also difficult to handle to generate the analysis mesh (maybe you need to manually split closed surfaces in two open parts, or replace some wrong surface)
-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20090402/543e551f/attachment.htm
Er… what should I do, increase or decrease surface render precision? Which
value did you use? Should I restart GiD then?
2009/4/2 Enrique Escolano escolano at cimne.upc.edu
If you change the value of Surface render precision it will force to
create again the render mesh,
then this surface ir rendered without problems.
----- Original Message -----
From: Nunzio Losacco nunzio.losacco at gmail.com
To: gidlist at gid.cimne.upc.edu
Sent: Thursday, April 02, 2009 3:59 PM
Subject: Re: [GiDlist] NURBS render
Thanks for your interest. My analysis meshes are created normally so this
is not a crucial problem. It’s just a bit annoying when, for instance, I
want to quickly select the outer
surfaces of a complex model. In the attached file you will find the kind of
surfaces that give me problems. The left surface is correctly rendered and
it has been created with GiD 9.0.2. The right surface is basically the same
thing, but created with GiD9.1.1b and is not rendered. I checked the
Preference-- Graphical options and I have exactly the same (default)
settings in both versions of the program.
Thanks again,
Nunzio.
2009/4/2 Enrique Escolano escolano at cimne.upc.edu
The surface that is not drawn in render mode is not related to any
graphic card problem (is not necessary set OpenGL by software)
Maybe with GiD 9.0.2 you were using another render precision that with
9.1.1b
Preferences - Graphical - Surface precision (Render)
a higher precision value means a finer render mesh
Or maybe simple there is some small change between 9.0.2 and 9.1.1b that
does that this surface is not render properly
Usually the most important is that this surface is able to be meshed for
the anaylisis mesh (this analysis mesher try harder methods than the render
mesher)
Send us a zip with your model to have a look.
Enrique
----- Original Message -----
From: Nunzio Losacco nunzio.losacco at gmail.com
To: gidlist at gid.cimne.upc.edu
Sent: Thursday, April 02, 2009 12:34 AM
Subject: Re: [GiDlist] NURBS render
Well, I’m not sure I understood properly. Anyway when drawing exactly the
same surface in GiD 9.0.2 rendering works perfectly.
I also tried software mode in GiD9.1.1b but this didn’t help.
Thank you,
Nunzio.
2009/3/31 Enrique Escolano escolano at cimne.upc.edu
Hello,
To show a surface in ‘render mode’ is necessary to create a “render mesh”
(usually triangles).
Sometimes this render mesh can’t be created for some surfaces (usually
closed surfaces or maybe bad defined ones) and then are not showed in render
mode.
Maybe your surface is well defined and the mesh generator is able to
generate an analysis mesh but not a render mesh, then you don’t need to
worry about, but usually this kind of surfacer are also difficult to
handle to generate the analysis mesh (maybe you need to manually split
closed surfaces in two open parts, or replace some wrong surface)
-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20090402/31b4a855/attachment.htm
You only need to change the value and click accept, then you can also change
it again to the initial value and click accept. Changing the value force GiD
to recalculate all render meshes.
Adrià,
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De: gidlist-admin at gid.cimne.upc.edu [mailto:gidlist-admin at gid.cimne.upc.edu]
En nombre de Nunzio Losacco
Enviado el: jueves, 02 de abril de 2009 23:36
Para: gidlist at gid.cimne.upc.edu
Asunto: Re: [GiDlist] NURBS render
Er… what should I do, increase or decrease surface render precision? Which
value did you use? Should I restart GiD then?
2009/4/2 Enrique Escolano escolano at cimne.upc.edu
If you change the value of Surface render precision it will force to create
again the render mesh,
then this surface ir rendered without problems.
----- Original Message -----
From: Nunzio Losacco mailto:nunzio.losacco at gmail.com
To: gidlist at gid.cimne.upc.edu
Sent: Thursday, April 02, 2009 3:59 PM
Subject: Re: [GiDlist] NURBS render
Thanks for your interest. My analysis meshes are created normally so this is
not a crucial problem. It’s just a bit annoying when, for instance, I want
to quickly select the outer
surfaces of a complex model. In the attached file you will find the kind of
surfaces that give me problems. The left surface is correctly rendered and
it has been created with GiD 9.0.2. The right surface is basically the same
thing, but created with GiD9.1.1b and is not rendered. I checked the
Preference-- Graphical options and I have exactly the same (default)
settings in both versions of the program.
Thanks again,
Nunzio.
2009/4/2 Enrique Escolano escolano at cimne.upc.edu
The surface that is not drawn in render mode is not related to any graphic
card problem (is not necessary set OpenGL by software)
Maybe with GiD 9.0.2 you were using another render precision that with
9.1.1b
Preferences - Graphical - Surface precision (Render)
a higher precision value means a finer render mesh
Or maybe simple there is some small change between 9.0.2 and 9.1.1b that
does that this surface is not render properly
Usually the most important is that this surface is able to be meshed for the
anaylisis mesh (this analysis mesher try harder methods than the render
mesher)
Send us a zip with your model to have a look.
Enrique
----- Original Message -----
From: Nunzio Losacco mailto:nunzio.losacco at gmail.com
To: gidlist at gid.cimne.upc.edu
Sent: Thursday, April 02, 2009 12:34 AM
Subject: Re: [GiDlist] NURBS render
Well, I’m not sure I understood properly. Anyway when drawing exactly the
same surface in GiD 9.0.2 rendering works perfectly.
I also tried software mode in GiD9.1.1b but this didn’t help.
Thank you,
Nunzio.
2009/3/31 Enrique Escolano escolano at cimne.upc.edu
Hello,
To show a surface in ‘render mode’ is necessary to create a “render mesh”
(usually triangles).
Sometimes this render mesh can’t be created for some surfaces (usually
closed surfaces or maybe bad defined ones) and then are not showed in render
mode.
Maybe your surface is well defined and the mesh generator is able to
generate an analysis mesh but not a render mesh, then you don’t need to
worry about, but usually this kind of surfacer are also difficult to handle
to generate the analysis mesh (maybe you need to manually split closed
surfaces in two open parts, or replace some wrong surface)
-------------- next part --------------
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It still doesn’t work, I’m giving up. It’s a bit annoying, I will wait until
“it gets fixed by itself”. 
thank you,
N.
2009/4/3 Adrià Melendo amelendo at cimne.upc.edu
You only need to change the value and click accept, then you can also
change it again to the initial value and click accept. Changing the value
force GiD to recalculate all render meshes.
Adrià,
-------------- next part --------------
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I don’t know why this surface can’t be rendered with your GiD.
I’m also trying with GiD9.1.1b (Windows x32) and it’s rendered with all possible values of the render surface precision. (I attach the model)
Enrique
----- Original Message -----
From: Nunzio Losacco
To: gidlist at gid.cimne.upc.edu
Sent: Friday, April 03, 2009 10:45 AM
Subject: Re: [GiDlist] NURBS render
It still doesn’t work, I’m giving up. It’s a bit annoying, I will wait until “it gets fixed by itself”.
thank you,
N.
2009/4/3 Adrià Melendo amelendo at cimne.upc.edu
You only need to change the value and click accept, then you can also change it again to the initial value and click accept. Changing the value force GiD to recalculate all render meshes.
Adrià,
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