[osg-users] Minor change proposal : Blacklist usage of all unsized texture internat format

[Robert Osfield]

Hi Julien,

On Thu, 16 Aug 2018 at 02:30, Julien Valentin
<julienvalentin51 at gmail.com> wrote:
> Immutable Storage  mandatory for lot of GL4 features:
> TextureImage synchronization,TextureView, persistance mapping, virtual texture and surely other stuff I didn't used yet

Thanks, this is what I was missing.  I had been searching online for
discussion about glTexStorage vs glTexImage but didn't come across
compelling reasons.

If these modern features don't work without glTexStorage usage then do
we have to have a flag in osg::Texture saying it's being actively
used?  Or is good enough to just make sure glTexStorage is used widely
enough and all GL4 usage that depends upon it all check the
GLExtensions.

Robert.