Hi Jan,
On 25/09/15 05:18, Jan Ciger wrote:> -----BEGIN PGP SIGNED MESSAGE-----
> On 24/09/15 00:19, Garth D wrote:
>> Many thanks for the interesting suggestion. :)
>>
>> My main development environment is Linux-based, with a secondary
>> virtualised Windows development environment. Due to the
>> visualization (VirtualBox) I don't believe I can do much in the way
>> of development with ANGLE due to its DX backend, at least with my
>> current setup.
>
> Um, wouldn't it be far easier to simply ask OSG to create an OpenGL
> 3.x/4.x core context instead? Then you don't have the legacy stuff
> available and don't need to bother with hacks like Angle.
Thankyou for the suggestion. :)
I have to admit being unsure how to set the specific context at present.
From what I've read, there'd need to be a glXCreateContextAttribsARB
call somewhere to create the GL3 context under Linux- and there doesn't
seem to be one. Skimming the source (I'm presently using OSG 3.2.1, but
had a peek at 3.4.0) suggests that perhaps this support is only
available on a Windows build. On the cmake side, OSG_GL3_AVAILABLE in my
build is off. However, glVersion=4.4 appears in my log during a build.
However, I am probably fine even if I am not grasping things entirely at
this point. It is something I can experiment with later on, probably on
my existing Windows build environment. Whether I experiment with ANGLE
from there or not is something I can weigh up from that point. Thanks
for the additional input.
I also just noticed that my prior email used "visualization" rather than
"virtualisation". Whoops. ;} I think I need to place a little less faith
in spellcheck suggestions.
I'm beginning to suspect that aiming for strict OpenGL 3+ or 4+ might
not be the best thing for me to concentrate at the moment. I might be
better off just using it where it helps and leaving a jump to "pure"
modern GL until a later date.
Cheers,
Garth
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