Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-15 Thread Ton Roosendaal
Hi Skoti,

That's an interesting viewpoint as well. What I read in the GNU FAQ  
would mean:

Even when we conclude that shader exports from Blender are GPL itself,  
for as long they're not used too link against a program, you can  
freely use them. It becomes like 'data' that way.

AFAIK you can also freely bundle gpl-ed components with non-gpl, for  
as long they're not acting as one single program.

This might be the most elegant solution; I should seek advise from FSF  
on it though :) Googling for the issue doesn't give replies sofar...  
it even shows this thread on the first page!

-Ton-


Ton Roosendaal  Blender Foundation   t...@blender.orgwww.blender.org
Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands

On 14 Oct, 2011, at 1:07, skoti wrote:

> Your code is not linked with the shaders, so you do not have to share
> your code.
> You just pass the code to drivers, and there is compiled and sent to  
> the
> graphics card. Code of your program is not connected with the shader,
> and only run it through the driver (which is allowed to run as  
> separate
> programsfrom non-free (shaders is separate programs)
> http://www.gnu.org/licenses/gpl-faq.html#NFUseGPLPlugins).
>
> Just do not hide the code shaders and shader code, do not changecode
> after reading from a file.
>
>
> On Thu, Oct 13, 2011 at 19:48, Dalai Felinto wrote:
>> Hi Ton,
>>
>> the shader files (gpu_shader_material.glsl and  
>> gpu_shader_vertex.glsl)
>> have
>> no license header on them.
>> Thus my hope that they were not under the GPL.
>>
>> In fact most of the code snippets we have there are classic
>> implementations.
>> I don't think they can even be under specific license.
>> I find strange to have GPL reinforced over them.
>>
>>> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2
>> or later".
>> I guess I was a bit outdated :p I was referring to this
>> http://www.blender.org/BL/
>>
>> Thanks,
>> Dalai
>>
>> 2011/10/13 Tom M
>>
>>> Ton,
>>>
>>> check with FSF, but I seriously doubt that a shader would be
>>> expressive, and hence is not copyrightable.
>>>
>>> A generated shader is even less likely to be viewed as expressive.
>>>
>>> LetterRip
>>>
>>> On Thu, Oct 13, 2011 at 1:36 AM, Ton Roosendaal   
>>> wrote:
 Hi Dalai,

 First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or
 later".

 If I understand the function well, it's generating a text file  
 using
 the GLSL shader code as in our svn (which is GPL). In that way the
 exported glsl code remains GPL.

 -Ton-

 

 Ton Roosendaal  Blender Foundation t...@blender.org www.blender.org
 Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The  
 Netherlands

 On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:

> Hi,
> I understand that Blender code is under GPL/BF licensing.
>
> But if I use the command (added on rev. 40061):
> shader = gpu.export_shader(scene,material)
>
> Is the shader still GPL/BFL? The shader is made of snippets of
> Blender code,
> so I can see what lawyers may clam. And technically speaking a  
> GLSL
> Shader
> is a program (compiles and run in the GPU).
>
> It would be really sad if this is the case though. Otherwise this
> could be
> used for external engines.
>
> Thanks,
> Dalai
> ___
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 ___
 Bf-committers mailing list
 Bf-committers@blender.org
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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-13 Thread Dalai Felinto
"I never thought people would export glsl shader files together with models
to use in other engines... is that the use case?"
Yes. I had GameKit in mind while wondering on that. But as Campbell brought
it up other engines can benefit from that as well.

--
Dalai
(although I had GameKit in mind I'm not part of the dev team. I was just
trying to have this clear to suggest them to finally support blender glsl
materials)

2011/10/13 Ton Roosendaal 

> Hi Dalai,
>
> Yeah... I noticed missing header too.
> But I know enough of Blender's code to see it's a copy of existing
> functions here :)
>
> It even has the bump code we added in 2.59...
>
> I never thought people would export glsl shader files together with
> models to use in other engines... is that the use case? Is that even
> more or less normal nowadays?
>
> In that case we could track back who contributed to the glsl files and
> check if it can be BSD'ed or MIT'ed so...
>
> -Ton-
>
> 
> Ton Roosendaal  Blender Foundation   t...@blender.orgwww.blender.org
> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands
>
> On 13 Oct, 2011, at 19:48, Dalai Felinto wrote:
>
> > Hi Ton,
> >
> > the shader files (gpu_shader_material.glsl and
> > gpu_shader_vertex.glsl) have
> > no license header on them.
> > Thus my hope that they were not under the GPL.
> >
> > In fact most of the code snippets we have there are classic
> > implementations.
> > I don't think they can even be under specific license.
> > I find strange to have GPL reinforced over them.
> >
> >> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2
> > or later". :)
> > I guess I was a bit outdated :p I was referring to this
> > http://www.blender.org/BL/
> >
> > Thanks,
> > Dalai
> >
> > 2011/10/13 Tom M 
> >
> >> Ton,
> >>
> >> check with FSF, but I seriously doubt that a shader would be
> >> expressive, and hence is not copyrightable.
> >>
> >> A generated shader is even less likely to be viewed as expressive.
> >>
> >> LetterRip
> >>
> >> On Thu, Oct 13, 2011 at 1:36 AM, Ton Roosendaal 
> >> wrote:
> >>> Hi Dalai,
> >>>
> >>> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or
> >>> later". :)
> >>>
> >>> If I understand the function well, it's generating a text file using
> >>> the GLSL shader code as in our svn (which is GPL). In that way the
> >>> exported glsl code remains GPL.
> >>>
> >>> -Ton-
> >>>
> >>>
> 
> >>> Ton Roosendaal  Blender Foundation   t...@blender.org
> www.blender.org
> >>> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The
> >>> Netherlands
> >>>
> >>> On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:
> >>>
>  Hi,
>  I understand that Blender code is under GPL/BF licensing.
> 
>  But if I use the command (added on rev. 40061):
>  shader = gpu.export_shader(scene,material)
> 
>  Is the shader still GPL/BFL? The shader is made of snippets of
>  Blender code,
>  so I can see what lawyers may clam. And technically speaking a GLSL
>  Shader
>  is a program (compiles and run in the GPU).
> 
>  It would be really sad if this is the case though. Otherwise this
>  could be
>  used for external engines.
> 
>  Thanks,
>  Dalai
>  ___
>  Bf-committers mailing list
>  Bf-committers@blender.org
>  http://lists.blender.org/mailman/listinfo/bf-committers
> >>>
> >>> ___
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> >>>
> >> ___
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> >>
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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-13 Thread skoti
Your code is not linked with the shaders, so you do not have to share 
your code.
You just pass the code to drivers, and there is compiled and sent to the 
graphics card. Code of your program is not connected with the shader, 
and only run it through the driver (which is allowed to run as separate 
programsfrom non-free (shaders is separate programs) 
http://www.gnu.org/licenses/gpl-faq.html#NFUseGPLPlugins).

Just do not hide the code shaders and shader code, do not changecode 
after reading from a file.


On Thu, Oct 13, 2011 at 19:48, Dalai Felinto wrote:
> Hi Ton,
>
> the shader files (gpu_shader_material.glsl and gpu_shader_vertex.glsl) 
> have
> no license header on them.
> Thus my hope that they were not under the GPL.
>
> In fact most of the code snippets we have there are classic 
> implementations.
> I don't think they can even be under specific license.
> I find strange to have GPL reinforced over them.
>
>> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2
> or later".
> I guess I was a bit outdated :p I was referring to this
> http://www.blender.org/BL/
>
> Thanks,
> Dalai
>
> 2011/10/13 Tom M
>
>> Ton,
>>
>> check with FSF, but I seriously doubt that a shader would be
>> expressive, and hence is not copyrightable.
>>
>> A generated shader is even less likely to be viewed as expressive.
>>
>> LetterRip
>>
>> On Thu, Oct 13, 2011 at 1:36 AM, Ton Roosendaal  wrote:
>>> Hi Dalai,
>>>
>>> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or
>>> later".
>>>
>>> If I understand the function well, it's generating a text file using
>>> the GLSL shader code as in our svn (which is GPL). In that way the
>>> exported glsl code remains GPL.
>>>
>>> -Ton-
>>>
>>>  
>>>
>>> Ton Roosendaal  Blender Foundation t...@blender.org www.blender.org
>>> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands
>>>
>>> On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:
>>>
 Hi,
 I understand that Blender code is under GPL/BF licensing.

 But if I use the command (added on rev. 40061):
 shader = gpu.export_shader(scene,material)

 Is the shader still GPL/BFL? The shader is made of snippets of
 Blender code,
 so I can see what lawyers may clam. And technically speaking a GLSL
 Shader
 is a program (compiles and run in the GPU).

 It would be really sad if this is the case though. Otherwise this
 could be
 used for external engines.

 Thanks,
 Dalai
 ___
 Bf-committers mailing list
 Bf-committers@blender.org
 http://lists.blender.org/mailman/listinfo/bf-committers
>>> ___
>>> Bf-committers mailing list
>>> Bf-committers@blender.org
>>> http://lists.blender.org/mailman/listinfo/bf-committers
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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-13 Thread Campbell Barton
> Hi Dalai,
>
> Yeah... I noticed missing header too.
> But I know enough of Blender's code to see it's a copy of existing
> functions here :)
>
> It even has the bump code we added in 2.59...
>
> I never thought people would export glsl shader files together with
> models to use in other engines... is that the use case? Is that even
> more or less normal nowadays?

Not yet, the "gpu" module to get this info was only added recently, So
far X3D exporter writes out these shaders when H3D compatibility is
enabled, (H3D is an X3D engine).

> In that case we could track back who contributed to the glsl files and
> check if it can be BSD'ed or MIT'ed so...

1+, but not my code :)

> -Ton-
>
> 
> Ton Roosendaal  Blender Foundation   t...@blender.org    www.blender.org
> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands
>
> On 13 Oct, 2011, at 19:48, Dalai Felinto wrote:
>
>> Hi Ton,
>>
>> the shader files (gpu_shader_material.glsl and
>> gpu_shader_vertex.glsl) have
>> no license header on them.
>> Thus my hope that they were not under the GPL.
>>
>> In fact most of the code snippets we have there are classic
>> implementations.
>> I don't think they can even be under specific license.
>> I find strange to have GPL reinforced over them.
>>
>>> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2
>> or later". :)
>> I guess I was a bit outdated :p I was referring to this
>> http://www.blender.org/BL/
>>
>> Thanks,
>> Dalai
>>
>> 2011/10/13 Tom M 
>>
>>> Ton,
>>>
>>> check with FSF, but I seriously doubt that a shader would be
>>> expressive, and hence is not copyrightable.
>>>
>>> A generated shader is even less likely to be viewed as expressive.
>>>
>>> LetterRip
>>>
>>> On Thu, Oct 13, 2011 at 1:36 AM, Ton Roosendaal 
>>> wrote:
 Hi Dalai,

 First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or
 later". :)

 If I understand the function well, it's generating a text file using
 the GLSL shader code as in our svn (which is GPL). In that way the
 exported glsl code remains GPL.

 -Ton-

 
 Ton Roosendaal  Blender Foundation   t...@blender.org    www.blender.org
 Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The
 Netherlands

 On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:

> Hi,
> I understand that Blender code is under GPL/BF licensing.
>
> But if I use the command (added on rev. 40061):
> shader = gpu.export_shader(scene,material)
>
> Is the shader still GPL/BFL? The shader is made of snippets of
> Blender code,
> so I can see what lawyers may clam. And technically speaking a GLSL
> Shader
> is a program (compiles and run in the GPU).
>
> It would be really sad if this is the case though. Otherwise this
> could be
> used for external engines.
>
> Thanks,
> Dalai
> ___
> Bf-committers mailing list
> Bf-committers@blender.org
> http://lists.blender.org/mailman/listinfo/bf-committers

 ___
 Bf-committers mailing list
 Bf-committers@blender.org
 http://lists.blender.org/mailman/listinfo/bf-committers

>>> ___
>>> Bf-committers mailing list
>>> Bf-committers@blender.org
>>> http://lists.blender.org/mailman/listinfo/bf-committers
>>>
>> ___
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>
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-- 
- Campbell
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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-13 Thread skoti
Your code is not linked with the shaders, so you do not have to share 
your code.
You just pass the code to drivers, and there is compiled and sent to the 
graphics card. Code of your program is not connected with the shader, 
and only run it through the driver (which is allowed to run as separate 
programsfrom non-free (shaders is separate programs) 
http://www.gnu.org/licenses/gpl-faq.html#NFUseGPLPlugins).

Just do not hide the code shaders and shader code, do not changecode 
after reading from a file.


On Thu, Oct 13, 2011 at 19:48, Dalai Felinto wrote:
> Hi Ton,
>
> the shader files (gpu_shader_material.glsl and gpu_shader_vertex.glsl) have
> no license header on them.
> Thus my hope that they were not under the GPL.
>
> In fact most of the code snippets we have there are classic implementations.
> I don't think they can even be under specific license.
> I find strange to have GPL reinforced over them.
>
>> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2
> or later". :)
> I guess I was a bit outdated :p I was referring to this
> http://www.blender.org/BL/
>
> Thanks,
> Dalai
>
> 2011/10/13 Tom M
>
>> Ton,
>>
>> check with FSF, but I seriously doubt that a shader would be
>> expressive, and hence is not copyrightable.
>>
>> A generated shader is even less likely to be viewed as expressive.
>>
>> LetterRip
>>
>> On Thu, Oct 13, 2011 at 1:36 AM, Ton Roosendaal  wrote:
>>> Hi Dalai,
>>>
>>> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or
>>> later". :)
>>>
>>> If I understand the function well, it's generating a text file using
>>> the GLSL shader code as in our svn (which is GPL). In that way the
>>> exported glsl code remains GPL.
>>>
>>> -Ton-
>>>
>>> 
>>> Ton Roosendaal  Blender Foundation   t...@blender.orgwww.blender.org
>>> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands
>>>
>>> On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:
>>>
 Hi,
 I understand that Blender code is under GPL/BF licensing.

 But if I use the command (added on rev. 40061):
 shader = gpu.export_shader(scene,material)

 Is the shader still GPL/BFL? The shader is made of snippets of
 Blender code,
 so I can see what lawyers may clam. And technically speaking a GLSL
 Shader
 is a program (compiles and run in the GPU).

 It would be really sad if this is the case though. Otherwise this
 could be
 used for external engines.

 Thanks,
 Dalai
 ___
 Bf-committers mailing list
 Bf-committers@blender.org
 http://lists.blender.org/mailman/listinfo/bf-committers
>>> ___
>>> Bf-committers mailing list
>>> Bf-committers@blender.org
>>> http://lists.blender.org/mailman/listinfo/bf-committers
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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-13 Thread Ton Roosendaal
Hi Dalai,

Yeah... I noticed missing header too.
But I know enough of Blender's code to see it's a copy of existing  
functions here :)

It even has the bump code we added in 2.59...

I never thought people would export glsl shader files together with  
models to use in other engines... is that the use case? Is that even  
more or less normal nowadays?

In that case we could track back who contributed to the glsl files and  
check if it can be BSD'ed or MIT'ed so...

-Ton-


Ton Roosendaal  Blender Foundation   t...@blender.orgwww.blender.org
Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands

On 13 Oct, 2011, at 19:48, Dalai Felinto wrote:

> Hi Ton,
>
> the shader files (gpu_shader_material.glsl and  
> gpu_shader_vertex.glsl) have
> no license header on them.
> Thus my hope that they were not under the GPL.
>
> In fact most of the code snippets we have there are classic  
> implementations.
> I don't think they can even be under specific license.
> I find strange to have GPL reinforced over them.
>
>> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2
> or later". :)
> I guess I was a bit outdated :p I was referring to this
> http://www.blender.org/BL/
>
> Thanks,
> Dalai
>
> 2011/10/13 Tom M 
>
>> Ton,
>>
>> check with FSF, but I seriously doubt that a shader would be
>> expressive, and hence is not copyrightable.
>>
>> A generated shader is even less likely to be viewed as expressive.
>>
>> LetterRip
>>
>> On Thu, Oct 13, 2011 at 1:36 AM, Ton Roosendaal   
>> wrote:
>>> Hi Dalai,
>>>
>>> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or
>>> later". :)
>>>
>>> If I understand the function well, it's generating a text file using
>>> the GLSL shader code as in our svn (which is GPL). In that way the
>>> exported glsl code remains GPL.
>>>
>>> -Ton-
>>>
>>> 
>>> Ton Roosendaal  Blender Foundation   t...@blender.orgwww.blender.org
>>> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The  
>>> Netherlands
>>>
>>> On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:
>>>
 Hi,
 I understand that Blender code is under GPL/BF licensing.

 But if I use the command (added on rev. 40061):
 shader = gpu.export_shader(scene,material)

 Is the shader still GPL/BFL? The shader is made of snippets of
 Blender code,
 so I can see what lawyers may clam. And technically speaking a GLSL
 Shader
 is a program (compiles and run in the GPU).

 It would be really sad if this is the case though. Otherwise this
 could be
 used for external engines.

 Thanks,
 Dalai
 ___
 Bf-committers mailing list
 Bf-committers@blender.org
 http://lists.blender.org/mailman/listinfo/bf-committers
>>>
>>> ___
>>> Bf-committers mailing list
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>>> http://lists.blender.org/mailman/listinfo/bf-committers
>>>
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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-13 Thread Dalai Felinto
Hi Ton,

the shader files (gpu_shader_material.glsl and gpu_shader_vertex.glsl) have
no license header on them.
Thus my hope that they were not under the GPL.

In fact most of the code snippets we have there are classic implementations.
I don't think they can even be under specific license.
I find strange to have GPL reinforced over them.

> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2
or later". :)
I guess I was a bit outdated :p I was referring to this
http://www.blender.org/BL/

Thanks,
Dalai

2011/10/13 Tom M 

> Ton,
>
> check with FSF, but I seriously doubt that a shader would be
> expressive, and hence is not copyrightable.
>
> A generated shader is even less likely to be viewed as expressive.
>
> LetterRip
>
> On Thu, Oct 13, 2011 at 1:36 AM, Ton Roosendaal  wrote:
> > Hi Dalai,
> >
> > First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or
> > later". :)
> >
> > If I understand the function well, it's generating a text file using
> > the GLSL shader code as in our svn (which is GPL). In that way the
> > exported glsl code remains GPL.
> >
> > -Ton-
> >
> > 
> > Ton Roosendaal  Blender Foundation   t...@blender.orgwww.blender.org
> > Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands
> >
> > On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:
> >
> >> Hi,
> >> I understand that Blender code is under GPL/BF licensing.
> >>
> >> But if I use the command (added on rev. 40061):
> >> shader = gpu.export_shader(scene,material)
> >>
> >> Is the shader still GPL/BFL? The shader is made of snippets of
> >> Blender code,
> >> so I can see what lawyers may clam. And technically speaking a GLSL
> >> Shader
> >> is a program (compiles and run in the GPU).
> >>
> >> It would be really sad if this is the case though. Otherwise this
> >> could be
> >> used for external engines.
> >>
> >> Thanks,
> >> Dalai
> >> ___
> >> Bf-committers mailing list
> >> Bf-committers@blender.org
> >> http://lists.blender.org/mailman/listinfo/bf-committers
> >
> > ___
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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-13 Thread Tom M
Ton,

check with FSF, but I seriously doubt that a shader would be
expressive, and hence is not copyrightable.

A generated shader is even less likely to be viewed as expressive.

LetterRip

On Thu, Oct 13, 2011 at 1:36 AM, Ton Roosendaal  wrote:
> Hi Dalai,
>
> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or
> later". :)
>
> If I understand the function well, it's generating a text file using
> the GLSL shader code as in our svn (which is GPL). In that way the
> exported glsl code remains GPL.
>
> -Ton-
>
> 
> Ton Roosendaal  Blender Foundation   t...@blender.org    www.blender.org
> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands
>
> On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:
>
>> Hi,
>> I understand that Blender code is under GPL/BF licensing.
>>
>> But if I use the command (added on rev. 40061):
>> shader = gpu.export_shader(scene,material)
>>
>> Is the shader still GPL/BFL? The shader is made of snippets of
>> Blender code,
>> so I can see what lawyers may clam. And technically speaking a GLSL
>> Shader
>> is a program (compiles and run in the GPU).
>>
>> It would be really sad if this is the case though. Otherwise this
>> could be
>> used for external engines.
>>
>> Thanks,
>> Dalai
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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-13 Thread Alberto Torres
If I publish a propietary game with GLSL code exported with that
function, it doesn't affect the rest of the code, right?



2011/10/13 Ton Roosendaal :
> Hi Dalai,
>
> First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or
> later". :)
>
> If I understand the function well, it's generating a text file using
> the GLSL shader code as in our svn (which is GPL). In that way the
> exported glsl code remains GPL.
>
> -Ton-
>
> 
> Ton Roosendaal  Blender Foundation   t...@blender.org    www.blender.org
> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands
>
> On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:
>
>> Hi,
>> I understand that Blender code is under GPL/BF licensing.
>>
>> But if I use the command (added on rev. 40061):
>> shader = gpu.export_shader(scene,material)
>>
>> Is the shader still GPL/BFL? The shader is made of snippets of
>> Blender code,
>> so I can see what lawyers may clam. And technically speaking a GLSL
>> Shader
>> is a program (compiles and run in the GPU).
>>
>> It would be really sad if this is the case though. Otherwise this
>> could be
>> used for external engines.
>>
>> Thanks,
>> Dalai
>> ___
>> Bf-committers mailing list
>> Bf-committers@blender.org
>> http://lists.blender.org/mailman/listinfo/bf-committers
>
> ___
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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-13 Thread Ton Roosendaal
Hi Dalai,

First: there's no "BF" or "BFL" license... it's just "GNU GPL v2 or  
later". :)

If I understand the function well, it's generating a text file using  
the GLSL shader code as in our svn (which is GPL). In that way the  
exported glsl code remains GPL.

-Ton-


Ton Roosendaal  Blender Foundation   t...@blender.orgwww.blender.org
Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands

On 13 Oct, 2011, at 8:17, Dalai Felinto wrote:

> Hi,
> I understand that Blender code is under GPL/BF licensing.
>
> But if I use the command (added on rev. 40061):
> shader = gpu.export_shader(scene,material)
>
> Is the shader still GPL/BFL? The shader is made of snippets of  
> Blender code,
> so I can see what lawyers may clam. And technically speaking a GLSL  
> Shader
> is a program (compiles and run in the GPU).
>
> It would be really sad if this is the case though. Otherwise this  
> could be
> used for external engines.
>
> Thanks,
> Dalai
> ___
> Bf-committers mailing list
> Bf-committers@blender.org
> http://lists.blender.org/mailman/listinfo/bf-committers

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Re: [Bf-committers] what is the license of Blender GLSL shaders?

2011-10-12 Thread Tom M
A shader might well be viewed as purely functional and hence not
subject to copyright in the US.

LetterRip

On Wed, Oct 12, 2011 at 10:17 PM, Dalai Felinto  wrote:
> Hi,
> I understand that Blender code is under GPL/BF licensing.
>
> But if I use the command (added on rev. 40061):
> shader = gpu.export_shader(scene,material)
>
> Is the shader still GPL/BFL? The shader is made of snippets of Blender code,
> so I can see what lawyers may clam. And technically speaking a GLSL Shader
> is a program (compiles and run in the GPU).
>
> It would be really sad if this is the case though. Otherwise this could be
> used for external engines.
>
> Thanks,
> Dalai
> ___
> Bf-committers mailing list
> Bf-committers@blender.org
> http://lists.blender.org/mailman/listinfo/bf-committers
>
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[Bf-committers] what is the license of Blender GLSL shaders?

2011-10-12 Thread Dalai Felinto
Hi,
I understand that Blender code is under GPL/BF licensing.

But if I use the command (added on rev. 40061):
shader = gpu.export_shader(scene,material)

Is the shader still GPL/BFL? The shader is made of snippets of Blender code,
so I can see what lawyers may clam. And technically speaking a GLSL Shader
is a program (compiles and run in the GPU).

It would be really sad if this is the case though. Otherwise this could be
used for external engines.

Thanks,
Dalai
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