[GEM-dev] how to share texture on different thread without having to copy it on the CPU?

IOhannes m zmoelnig zmoelnig at iem.at
Thu Feb 23 14:13:52 CET 2012


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On 2012-02-23 12:35, Cyrille Henry wrote:
> hello,
> 
> is there a solution to share texture between 2 pd instance, or between 2
> software, without having to copy it back in CPU?
> somthing like pix_buffer_read and pix_buffer_write, but for gpu texture.
> 
> it look like possible, but does anyone already implement it?
> http://developer.download.nvidia.com/opengl/specs/GL_NV_copy_image.txt
> 

"syphon" on osx does something like this.
Gem-support is currently rudimentary though... (only output, and only
the "main" framebuffer (gemwin))


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IOhannes
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