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WaveFront File importer on Pharo

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Jean Baptiste Arnaud

WaveFront File importer on Pharo

Hi,

Under the pressure of Camillo i publish the code.

I beginning to do a Wavefront (human readable standard for 3d Obj Model ) importer on Pharo.

So i made a importer.

Not all the case are manage, only the case I need to import the current Obj model.

And a drawer which is in Alpha version.

face and normal vector are manage.

Missing color (in progress), and texturing.

You need .obj file and all the .mtl related (open you blender and make it nice).

If you are not running on Mac os comment this code in GLWorldTest>>#render, the

display makeCurrent.

else if you running on mac os implement it in

NBMSAAOffscreenDisplay>>#makeCurrent

^driver makeCurrent.

My code can be find on JBARepo on squeaksource

ObjModel Package but you need NBOpenGL (i do a configuration in same place i just need to be motivated for keep it up to date).

put on same folder of the .image your .obj and .mtl file (i am lazy) (maybe it is VM folder i do not know).

open a workspace and do

"s := ObjImporter importFrom: 'xwing-map.obj'.

s parse.

object := s objects.

w := GLWorldTest new.

object do: [:e | w addElement: e].

w openInWorld."

3d result with normal

With normal and color but not texture :

Enjoy

Best Regards

Jean Baptiste Arnaud

[hidden email]

Stéphane Ducasse

Re: WaveFront File importer on Pharo

On Jul 17, 2012, at 2:21 PM, Jean Baptiste Arnaud wrote:

> Hi,
> Under the pressure of Camillo i publish the code.

Thanks camillo :)

> I beginning to do a Wavefront (human readable standard for 3d Obj Model ) importer on Pharo.
>
> So i made a importer.
> Not all the case are manage, only the case I need to import the current Obj model.

you relax from PhD writing :).

>
> And a drawer which is in Alpha version.
> face and normal vector are manage.
> Missing color (in progress), and texturing.
>
> You need .obj file and all the .mtl related (open you blender and make it nice).
>
> If you are not running on Mac os comment this code in GLWorldTest>>#render, the
>
> display makeCurrent.
>
> else if you running on mac os implement it in
> NBMSAAOffscreenDisplay>>#makeCurrent
> ^driver makeCurrent.
>
> My code can be find on JBARepo on squeaksource
> ObjModel Package but you need NBOpenGL (i do a configuration in same place i just need to be motivated for keep it up to date).

Keep it up to date.

>
> So
> put on same folder of the .image your .obj and .mtl file (i am lazy) (maybe it is VM folder i do not know).
> open a workspace and do
>
> "s := ObjImporter importFrom: 'xwing-map.obj'.
> s parse.
> object := s objects.
>
> w := GLWorldTest new.
> object do: [:e | w addElement: e].
> w openInWorld."
>
> 3d result with normal
> <Screen Shot 2012-07-17 at 1.59.22 PM.png>
>
>
> With normal and color but not texture :
>
> <Screen Shot 2012-07-17 at 1.58.18 PM.png>
>
> Enjoy
>
>
>
>
> Best Regards
> Jean Baptiste Arnaud
> [hidden email]
>
>
>
>
>
>
>

Tudor Girba-2

Re: WaveFront File importer on Pharo

In reply to this post by Jean Baptiste Arnaud

Very nice!

Doru

On 17 Jul 2012, at 14:21, Jean Baptiste Arnaud wrote:

> Hi,
> Under the pressure of Camillo i publish the code.
> I beginning to do a Wavefront (human readable standard for 3d Obj Model ) importer on Pharo.
>
> So i made a importer.
> Not all the case are manage, only the case I need to import the current Obj model.
>
> And a drawer which is in Alpha version.
> face and normal vector are manage.
> Missing color (in progress), and texturing.
>
> You need .obj file and all the .mtl related (open you blender and make it nice).
>
> If you are not running on Mac os comment this code in GLWorldTest>>#render, the
>
> display makeCurrent.
>
> else if you running on mac os implement it in
> NBMSAAOffscreenDisplay>>#makeCurrent
> ^driver makeCurrent.
>
> My code can be find on JBARepo on squeaksource
> ObjModel Package but you need NBOpenGL (i do a configuration in same place i just need to be motivated for keep it up to date).
>
> So
> put on same folder of the .image your .obj and .mtl file (i am lazy) (maybe it is VM folder i do not know).
> open a workspace and do
>
> "s := ObjImporter importFrom: 'xwing-map.obj'.
> s parse.
> object := s objects.
>
> w := GLWorldTest new.
> object do: [:e | w addElement: e].
> w openInWorld."
>
> 3d result with normal
> <Screen Shot 2012-07-17 at 1.59.22 PM.png>
>
>
> With normal and color but not texture :
>
> <Screen Shot 2012-07-17 at 1.58.18 PM.png>
>
> Enjoy
>
>
>
>
> Best Regards
> Jean Baptiste Arnaud
> [hidden email]
>
>
>
>
>
>
>

--
www.tudorgirba.com

"To utilize feedback, you first have to acquire it."

Jean Baptiste Arnaud

Re: WaveFront File importer on Pharo

I have transparency now and i beginning texturing.

I just need to check the rule for drawing to be more accurate with .obj model (basically change to parameter and take the best result).

I need to parse and to rewrite all the path for texture it did not find (every texture in fact, blender export in a really strange way).

And in addition there are plenty of different kind of texture and I need to learn OpenGL. :-)

i already success to texturing the vador starship. I need to generalise process now.

On Jul 18, 2012, at 7:37 AM, Tudor Girba wrote:

Very nice!

Doru

On 17 Jul 2012, at 14:21, Jean Baptiste Arnaud wrote:

Hi,
Under the pressure of Camillo i publish the code.
I beginning to do a Wavefront (human readable standard for 3d Obj Model ) importer on Pharo.

So i made a importer.
Not all the case are manage, only the case I need to import the current Obj model.

And a drawer which is in Alpha version.
face and normal vector are manage.
Missing color (in progress), and texturing.

You need .obj file and all the .mtl related (open you blender and make it nice).

If you are not running on Mac os comment this code in GLWorldTest>>#render, the

display makeCurrent.

else if you running on mac os implement it in
NBMSAAOffscreenDisplay>>#makeCurrent
^driver makeCurrent.

My code can be find on JBARepo on squeaksource
ObjModel Package but you need NBOpenGL (i do a configuration in same place i just need to be motivated for keep it up to date).

So
put on same folder of the .image your .obj and .mtl file (i am lazy) (maybe it is VM folder i do not know).
open a workspace and do

"s := ObjImporter importFrom: 'xwing-map.obj'.
s parse.
object := s objects.

w := GLWorldTest new.
object do: [:e | w addElement: e].
w openInWorld."

3d result with normal
<Screen Shot 2012-07-17 at 1.59.22 PM.png>

With normal and color but not texture :

<Screen Shot 2012-07-17 at 1.58.18 PM.png>

Enjoy

Best Regards
Jean Baptiste Arnaud
[hidden email]

--
www.tudorgirba.com

"To utilize feedback, you first have to acquire it."

Best Regards

Jean Baptiste Arnaud

[hidden email]

melkyades

Re: WaveFront File importer on Pharo

Wow! this is cool!

On Wed, Jul 18, 2012 at 8:35 AM, Jean Baptiste Arnaud <[hidden email]> wrote:

I have transparency now and i beginning texturing.
I just need to check the rule for drawing to be more accurate with .obj model (basically change to parameter and take the best result).

I need to parse and to rewrite all the path for texture it did not find (every texture in fact, blender export in a really strange way).
And in addition there are plenty of different kind of texture and I need to learn OpenGL. :-)

i already success to texturing the vador starship. I need to generalise process now.

On Jul 18, 2012, at 7:37 AM, Tudor Girba wrote:

Very nice!

Doru

On 17 Jul 2012, at 14:21, Jean Baptiste Arnaud wrote:

Hi,
Under the pressure of Camillo i publish the code.
I beginning to do a Wavefront (human readable standard for 3d Obj Model ) importer on Pharo.

So i made a importer.
Not all the case are manage, only the case I need to import the current Obj model.

And a drawer which is in Alpha version.
face and normal vector are manage.
Missing color (in progress), and texturing.

You need .obj file and all the .mtl related (open you blender and make it nice).

If you are not running on Mac os comment this code in GLWorldTest>>#render, the

display makeCurrent.

else if you running on mac os implement it in
NBMSAAOffscreenDisplay>>#makeCurrent
^driver makeCurrent.

My code can be find on JBARepo on squeaksource
ObjModel Package but you need NBOpenGL (i do a configuration in same place i just need to be motivated for keep it up to date).

So
put on same folder of the .image your .obj and .mtl file (i am lazy) (maybe it is VM folder i do not know).

open a workspace and do

"s := ObjImporter importFrom: 'xwing-map.obj'.
s parse.
object := s objects.

w := GLWorldTest new.
object do: [:e | w addElement: e].

w openInWorld."

3d result with normal
<Screen Shot 2012-07-17 at 1.59.22 PM.png>

With normal and color but not texture :

<Screen Shot 2012-07-17 at 1.58.18 PM.png>

Enjoy

Best Regards
Jean Baptiste Arnaud
[hidden email]

--
www.tudorgirba.com

"To utilize feedback, you first have to acquire it."

Best Regards
Jean Baptiste Arnaud
[hidden email]

--
Lic. Javier Pimás
Ciudad de Buenos Aires

Luc Fabresse

Re: WaveFront File importer on Pharo

In reply to this post by Stéphane Ducasse

Hi JB,

Excellent!

I tried to give it a try for the fun.

I couldn't make it work.

I updated some stuff (find it attached):

- ConfigurationOfObjModel-LucFabresse.2.mcz

added repository for package OBJModel in baseline

- OBJModel-LucFabresse.7

add support for empty lines and "g" lines in wavefront format parser (ObjImporter>>dispach:)

Here the snippet I tried:

filename := 'teapot.obj'.

response := ZnEasy get: 'http://people.sc.fsu.edu/~jburkardt/data/obj/',filename.

(FileSystem disk workingDirectory / filename)

writeStreamDo: [ :stream | stream nextPutAll: response contents].

s := ObjImporter importFrom: filename.

s parse.

object := s objects.

w := GLWorldTest new.

object do: [:e | w addElement: e].

w openInWorld.

Parsing seems to be ok.

But, creating the GL context failed: invalid pixel format.

On a mac OSX 10.6.8.

I am eager to play deeper with that ;-)

#Luc

2012/7/18 Stéphane Ducasse <[hidden email]>

On Jul 17, 2012, at 2:21 PM, Jean Baptiste Arnaud wrote:

> Hi,
> Under the pressure of Camillo i publish the code.

Thanks camillo :)

> I beginning to do a Wavefront (human readable standard for 3d Obj Model ) importer on Pharo.
>
> So i made a importer.
> Not all the case are manage, only the case I need to import the current Obj model.

you relax from PhD writing :).

>
> And a drawer which is in Alpha version.
> face and normal vector are manage.
> Missing color (in progress), and texturing.
>
> You need .obj file and all the .mtl related (open you blender and make it nice).
>
> If you are not running on Mac os comment this code in GLWorldTest>>#render, the
>
> display makeCurrent.
>
> else if you running on mac os implement it in
> NBMSAAOffscreenDisplay>>#makeCurrent
> ^driver makeCurrent.
>
> My code can be find on JBARepo on squeaksource
> ObjModel Package but you need NBOpenGL (i do a configuration in same place i just need to be motivated for keep it up to date).

Keep it up to date.

>
> So
> put on same folder of the .image your .obj and .mtl file (i am lazy) (maybe it is VM folder i do not know).
> open a workspace and do
>
> "s := ObjImporter importFrom: 'xwing-map.obj'.
> s parse.
> object := s objects.
>
> w := GLWorldTest new.
> object do: [:e | w addElement: e].
> w openInWorld."
>
> 3d result with normal

> <Screen Shot 2012-07-17 at 1.59.22 PM.png>
>
>

> With normal and color but not texture :
>

> <Screen Shot 2012-07-17 at 1.58.18 PM.png>
>

> Enjoy
>
>
>
>
> Best Regards
> Jean Baptiste Arnaud
> [hidden email]
>
>
>
>
>
>
>

OBJModel-LucFabresse.7.mcz (25K) Download Attachment

ConfigurationOfObjModel-LucFabresse.2.mcz (5K) Download Attachment

Jean Baptiste Arnaud

Re: WaveFront File importer on Pharo

I will check tomorrow, because i don't manage all the dispatch case g Object001

in file is not manage is do that tomorow fast.

On Jul 21, 2012, at 9:44 AM, Luc Fabresse wrote:

Hi JB,

Excellent!
I tried to give it a try for the fun.
I couldn't make it work.

I updated some stuff (find it attached):
- ConfigurationOfObjModel-LucFabresse.2.mcz

added repository for package OBJModel in baseline
- OBJModel-LucFabresse.7
add support for empty lines and "g" lines in wavefront format parser (ObjImporter>>dispach:)

Here the snippet I tried:

filename := 'teapot.obj'.
response := ZnEasy get: 'http://people.sc.fsu.edu/~jburkardt/data/obj/',filename.

(FileSystem disk workingDirectory / filename)
writeStreamDo: [ :stream | stream nextPutAll: response contents].

s := ObjImporter importFrom: filename.

s parse.
object := s objects.

w := GLWorldTest new.
object do: [:e | w addElement: e].
w openInWorld.

Parsing seems to be ok.
But, creating the GL context failed: invalid pixel format.
On a mac OSX 10.6.8.

I am eager to play deeper with that ;-)

#Luc

2012/7/18 Stéphane Ducasse <[hidden email]>

On Jul 17, 2012, at 2:21 PM, Jean Baptiste Arnaud wrote:

> Hi,
> Under the pressure of Camillo i publish the code.

Thanks camillo :)

> I beginning to do a Wavefront (human readable standard for 3d Obj Model ) importer on Pharo.
>
> So i made a importer.
> Not all the case are manage, only the case I need to import the current Obj model.

you relax from PhD writing :).

>
> And a drawer which is in Alpha version.
> face and normal vector are manage.
> Missing color (in progress), and texturing.
>
> You need .obj file and all the .mtl related (open you blender and make it nice).
>
> If you are not running on Mac os comment this code in GLWorldTest>>#render, the
>
> display makeCurrent.
>
> else if you running on mac os implement it in
> NBMSAAOffscreenDisplay>>#makeCurrent
> ^driver makeCurrent.
>
> My code can be find on JBARepo on squeaksource
> ObjModel Package but you need NBOpenGL (i do a configuration in same place i just need to be motivated for keep it up to date).

Keep it up to date.

>
> So
> put on same folder of the .image your .obj and .mtl file (i am lazy) (maybe it is VM folder i do not know).
> open a workspace and do
>
> "s := ObjImporter importFrom: 'xwing-map.obj'.
> s parse.
> object := s objects.
>
> w := GLWorldTest new.
> object do: [:e | w addElement: e].
> w openInWorld."
>
> 3d result with normal

> <Screen Shot 2012-07-17 at 1.59.22 PM.png>
>
>

> With normal and color but not texture :
>

> <Screen Shot 2012-07-17 at 1.58.18 PM.png>
>

> Enjoy
>
>
>
>
> Best Regards
> Jean Baptiste Arnaud
> [hidden email]
>
>
>
>
>
>
>

<OBJModel-LucFabresse.7.mcz><ConfigurationOfObjModel-LucFabresse.2.mcz>

Best Regards

Jean Baptiste Arnaud

[hidden email]

Jean Baptiste Arnaud

Re: WaveFront File importer on Pharo

In reply to this post by Stéphane Ducasse

On Jul 18, 2012, at 7:34 AM, Stéphane Ducasse wrote:

On Jul 17, 2012, at 2:21 PM, Jean Baptiste Arnaud wrote:

Hi,
Under the pressure of Camillo i publish the code.

Thanks camillo :)

I beginning to do a Wavefront (human readable standard for 3d Obj Model ) importer on Pharo.

So i made a importer.
Not all the case are manage, only the case I need to import the current Obj model.

you relax from PhD writing :).

Exactly ^^.

And a drawer which is in Alpha version.
face and normal vector are manage.
Missing color (in progress), and texturing.

You need .obj file and all the .mtl related (open you blender and make it nice).

If you are not running on Mac os comment this code in GLWorldTest>>#render, the

display makeCurrent.

else if you running on mac os implement it in
NBMSAAOffscreenDisplay>>#makeCurrent
^driver makeCurrent.

My code can be find on JBARepo on squeaksource
ObjModel Package but you need NBOpenGL (i do a configuration in same place i just need to be motivated for keep it up to date).

Keep it up to date.

So
put on same folder of the .image your .obj and .mtl file (i am lazy) (maybe it is VM folder i do not know).
open a workspace and do

"s := ObjImporter importFrom: 'xwing-map.obj'.
s parse.
object := s objects.

w := GLWorldTest new.
object do: [:e | w addElement: e].
w openInWorld."

3d result with normal
<Screen Shot 2012-07-17 at 1.59.22 PM.png>

With normal and color but not texture :

<Screen Shot 2012-07-17 at 1.58.18 PM.png>

Enjoy

Best Regards
Jean Baptiste Arnaud
[hidden email]

Best Regards

Jean Baptiste Arnaud

[hidden email]