[Bf-committers] GLSL for Mac

[Marcelo Varanda]

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> 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
> 
> * 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
>> 
>> 
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