While names of WebGL extensions are 90% identical to ES2, at some point the WebGL committee seems to have decided
that it's better to give new names to the same stuff (RTT's with depth-buffer for example, but I'm sure they had a good reason?).
So we have to split this and now have mostly independent extension handlers. Still - WebGLDriver is lazy and derives from
ES2Driver and that derives from ES2ExtensionHandler... so unfortunately WebGL driver has now 2 extension handlers.
The way it's solved for now is that extension strings are handled by the webgl extension handler and everything else
stays for now with the ES2ExtensionHandler. Maybe we can split/merge stuff later in a better way, but I see no easy to implement improvement.
Could be we could pass extension handlers as template paramter to drivers maybe, but that's just an idea for now.
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@5556 dfc29bdd-3216-0410-991c-e03cc46cb475
cutealien