On Tue, 1 May 2012 08:52:51 +0200, Olivier Galibert <galib...@pobox.com> wrote: > On Mon, Apr 30, 2012 at 02:21:51PM -0700, Eric Anholt wrote: > > GLSL 1.30 is already on for gen6+. You can force 1.30 for your purposes > > if needed on older hardware with the environment variable: > > > > MESA_GLSL_VERSION_OVERRIDE=130 > > > > (Also, there's MESA_EXTENSION_OVERRIDE="+GL_ARB_texture_buffer_object > > +GL_ARB_uniform_buffer_object" or MESA_GL_VERSION_OVERRIDE for poking at > > new extension support before the driver's ready) > > Thanks. The only intel hardware I have is a GM45 (8086:2a43) which is > seems qualifies at gen4. I rememeber from my casual reading of the > hardware docs that it seemed 3.3-capable. Did I miss something?
Issues with GL 3.0 pre-gen6: - No MSAA. You'd have to fake it with supersampling. - Doesn't support filtering on 32-bit float textures. - transform feedback is different and needs backporting. - GLSL noperspective/smooth/flat keywords are handled very differently in the SF.
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