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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Tue Aug 13, 2013 12:57 pm 
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Thank you for the explanation , shakotay2, i will try to get the meshes like fxcyrex ....for the textures u can use webgl inspector

(for crome and firefox) which lets u to obtain the txts and view even the uv maps in form of a flat mesh in its vewer.

Unfortunately it can export only the textures.

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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Tue Aug 13, 2013 9:38 pm 
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Thanx for all the help. Created a C# program to translate the bin file to obj files and got the object in blender :)
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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Tue Aug 13, 2013 9:51 pm 
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fxcyrex wrote:
Thanx for all the help. Created a C# program to translate the bin file to obj files and got the object in blender :)
Wow. I'm kinda impressed how fast you've solved it. Guess you used a graphics library? (When starting 3D coding some years agoo it took me 2 days for coding the IEEE-754 conversion routine. Seems I'm a little bit slow... :D )

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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Tue Aug 13, 2013 10:04 pm 
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shakotay2 wrote:
fxcyrex wrote:
Thanx for all the help. Created a C# program to translate the bin file to obj files and got the object in blender :)
Wow. I'm kinda impressed how fast you've solved it. Guess you used a graphics library? (When starting 3D coding some years agoo it took me 2 days for coding the IEEE-754 conversion routine. Seems I'm a little bit slow... :D )


It was easy in C#. Here is some of the code I used:
Code:
                   int pos = start;
                    b.BaseStream.Seek(pos, SeekOrigin.Begin);
                    int length = pos + ((stop + 1) * 12);

                    while (pos < length)
                    {
                        float x = BitConverter.ToSingle(b.ReadBytes(4), 0);
                        float y = BitConverter.ToSingle(b.ReadBytes(4), 0);
                        float z = BitConverter.ToSingle(b.ReadBytes(4), 0);
                        file.WriteLine("v " + x.ToString("0.000000") + " " + y.ToString("0.000000") + " " + z.ToString("0.000000"));


Again, thanks for the help. This was really fun. Now, I'm looking at the 3DCG files to try to understand more :)


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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Tue Aug 13, 2013 10:53 pm 
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fxcyrex wrote:
shakotay2 wrote:
fxcyrex wrote:
Thanx for all the help. Created a C# program to translate the bin file to obj files and got the object in blender :)
Wow. I'm kinda impressed how fast you've solved it. Guess you used a graphics library? (When starting 3D coding some years agoo it took me 2 days for coding the IEEE-754 conversion routine. Seems I'm a little bit slow... :D )


It was easy in C#. Here is some of the code I used:
Code:
                   int pos = start;
                    b.BaseStream.Seek(pos, SeekOrigin.Begin);
                    int length = pos + ((stop + 1) * 12);

                    while (pos < length)
                    {
                        float x = BitConverter.ToSingle(b.ReadBytes(4), 0);
                        float y = BitConverter.ToSingle(b.ReadBytes(4), 0);
                        float z = BitConverter.ToSingle(b.ReadBytes(4), 0);
                        file.WriteLine("v " + x.ToString("0.000000") + " " + y.ToString("0.000000") + " " + z.ToString("0.000000"));


Again, thanks for the help. This was really fun. Now, I'm looking at the 3DCG files to try to understand more :)



Nice on guys !

(ps: if you want, you can share your work, lot of people will be happy to have a software/script for these site)

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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Wed Aug 14, 2013 8:13 am 
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My plan is to release it when I have ironed out some bugs and made it working with different models. This program was very specific to this model, but easy to convert to other models.


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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Wed Aug 14, 2013 2:15 pm 
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fxcyrex wrote:
My plan is to release it when I have ironed out some bugs and made it working with different models. This program was very specific to this model, but easy to convert to other models.


:) No prob.

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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Wed Aug 14, 2013 10:38 pm 
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shakotay: are you using the same parser for 3dcg-arts' format and sketchfab format?

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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Thu Aug 15, 2013 12:00 am 
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No, the 3dcg-arts models (975.htm) format contained pure ASCII code:
faces":[[42,0,1,2,0,0,1,2,0,1,2,

vertices":[[11.6939,160.1271,-7.9036,11.381,160.6062,

(You know it I think.)

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extracting simple models: http://forum.xentax.com/viewtopic.php?f=29&t=10894
Make_H2O-ForzaHor3-jm9.zip

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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Mon Nov 18, 2013 10:11 am 
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Quote:
Hi there,

I'm the owner of Sketchfab, and I'm contacting you after one of our users reported the following thread: WebGL ripping of a model from sketchfab

This thread and it's content are violating the copyrights of our users and our terms of service, so I am asking you to remove it as soon as possible.

Please let me know when it's done.



Hi users, in what way could there be copyrights violated? What is your opinion?

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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Mon Nov 18, 2013 12:11 pm 
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Mr.Mouse wrote:
Hi users, in what way could there be copyrights violated? What is your opinion?
I'm no lawyer. But in my opinion as far as there are model data from Sketchfab presented in this thread he could be right.

So I would remove the obj which I derived by reverse engineering [done].

But the demand for removing the thread is to reject imho.
AFAIK it's not forbidden to reveal reverse engineering methods.

So I won't remove the pics of the obj I created.

But in the end I'll follow your decision, Mr. Mouse, of course. :D

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extracting simple models: http://forum.xentax.com/viewtopic.php?f=29&t=10894
Make_H2O-ForzaHor3-jm9.zip

"We are Microsoft. You will be assimilated. Resistance is Futile."


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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Mon Nov 18, 2013 12:58 pm 
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I agree with shakotay2...removing the obj file, should the copyright complaint . The fact that webgl format can be reverse is inside the format itself. There are a lot of discussion about that on the web. This is a good point about webgl 3d stuffs:
http://blog.tojicode.com/2011/12/protec ... y-you.html

Anyway this tread is about webgl format reverse engineering ,not sketchfab, and to be honest i can't see any damage for the authors, who post their works there mainly to get exposure and feedback about their skills (imho).


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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Mon Nov 18, 2013 5:53 pm 
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shakotay2 wrote:
Mr.Mouse wrote:
Hi users, in what way could there be copyrights violated? What is your opinion?
I'm no lawyer. But in my opinion as far as there are model data from Sketchfab presented in this thread he could be right.

So I would remove the obj which I derived by reverse engineering [done].

But the demand for removing the thread is to reject imho.
AFAIK it's not forbidden to reveal reverse engineering methods.

So I won't remove the pics of the obj I created.

But in the end I'll follow your decision, Mr. Mouse, of course. :D


Ares722 wrote:
I agree with shakotay2...removing the obj file, should the copyright complaint . The fact that webgl format can be reverse is inside the format itself. There are a lot of discussion about that on the web. This is a good point about webgl 3d stuffs:
http://blog.tojicode.com/2011/12/protec ... y-you.html

Anyway this tread is about webgl format reverse engineering ,not sketchfab, and to be honest i can't see any damage for the authors, who post their works there mainly to get exposure and feedback about their skills (imho).


I agree with both of you.


Mr.Mouse wrote:
Hi users, in what way could there be copyrights violated? What is your opinion?


I'm really happy to see that.
In lot of forum there are no discussion between admin and users about things like that. Here we prefer talk before act, and it's really good thing. Thank You Mr.Mouse.

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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Mon Nov 18, 2013 6:44 pm 
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Mr.Mouse wrote:
Quote:
Hi there,

I'm the owner of Sketchfab, and I'm contacting you after one of our users reported the following thread: WebGL ripping of a model from sketchfab

This thread and it's content are violating the copyrights of our users and our terms of service, so I am asking you to remove it as soon as possible.

Please let me know when it's done.



Hi users, in what way could there be copyrights violated? What is your opinion?


I only could see copyright infridgement if you got paid for something you don't own and you claim it's yours without paying anything to it's original owner and not giving proper credits.

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 Post subject: Re: WebGL ripping of a model from sketchfab
PostPosted: Wed Mar 05, 2014 5:46 am 
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Hi! Please help me! I need this model https://sketchfab.com/show/5c7e33780c6d ... dafe631fed for generating the bas-relief with my plugin!
I try extract it with WebGL Inspector and hex2obj software, but all in vain! I think that owner the sketchfab use very complex methods security!



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