[Bf-committers] Fwd: GLSL for Mac

[CGLabs]

> 
> Thanks Antony/Mike.
> 
> I have a build for the experimental branch (actually a separated copy) of Clement’s PBR for MacOS:
> 
> https://www.dropbox.com/s/7pk9idk5g28ixnl/blenderPBR_for_MacOS.zip?dl=0 <https://www.dropbox.com/s/7pk9idk5g28ixnl/blenderPBR_for_MacOS.zip?dl=0>
> 
> Cheers,
> Varanda
> 
> 



>> On Jan 19, 2016, at 3:44 PM, Mike Erwin <significant.bit at gmail.com <mailto:significant.bit at gmail.com>> wrote:
>> 
>> Hi Marcelo,
>> 
>> GLSL 1.2 (#version 120) correlates to OpenGL 2.1, the lowest version we
>> support and the *highest* we support on Mac until the next version of
>> Blender.
>> 
>> I thought EXT_gpu_shader4 would let you use uint but lemme check...
>> 
>> https://www.opengl.org/registry/specs/EXT/gpu_shader4.txt <https://www.opengl.org/registry/specs/EXT/gpu_shader4.txt>
>> 
>> * Full signed integer and unsigned integer support in the OpenGL
>>  Shading Language:
>> 
>>  - Integers are defined as 32 bit values using two's complement.
>>  - Unsigned integers and vectors thereof are added.
>> 
>> 
>> Which to me means it should work! Maybe it doesn't have the uint keword
>> yet. Try something like this in the shader:
>> 
>> #if __VERSION__ < 130
>> #define uint unsigned int
>> #endif
>> 
>> Mike Erwin
>> musician, naturalist, pixel pusher, hacker extraordinaire
>> 
>> On Tue, Jan 19, 2016 at 2:14 PM, CGLabs <cglabs at mail.com> wrote:
>> 
>>> Hello,
>>> 
>>> I am trying to use a modified “gpu_shader_material.glsl” which has
>>> variables defined as uint types.
>>> The GLSL version that Blender is picking up is 120:
>>> 
>>> #version 120
>>> #extension GL_ARB_draw_instanced: enable
>>> #extension GL_EXT_gpu_shader4: enable
>>> #define GPU_NVIDIA
>>> …
>>> …
>>> …
>>> 
>>> I am getting syntax error for uint when the OpenGL runtime complies the
>>> dynamic source code.
>>> I am assuming that 120 correlates to OpenGL 1.20 and it seams that uint is
>>> not supported.
>>> 
>>> Even more odd is that is I replace all uint by unsigned int it GLGS
>>> compiler is “happy” and works (despite the fact that OpenGL 1.20 states
>>> unsigned as reserved word).
>>> 
>>> Does anyone know what is going on with GLSL’s  uint ?
>>> 
>>> My machine: MacBook PRO with NVIDIA GeForce GT 750M 2048 MB
>>> 
>>> Regards,
>>> Marcelo Varanda
>>> 
>>> 
>>> _______________________________________________
>>> Bf-committers mailing list
>>> Bf-committers at blender.org
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>>> 
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