- the framebuffer class in examples/common is unstable in certain drivers.
removing offscreen rendering for now.
- move screenshot function to GLUtils.
- fix vertex attrib binding bug (not showing control mesh on osx)
Adding command line options to glViewer to make it easy
to control the requested GL version and profile. While
it is only enabled for glViewer in this change, it will
be easy to extend to all our example viewers. The new
command line options are:
-glCoreProfile on|off
-glForwardCompat on|off
-glVersion M.n
It appears the behavior of the version hint is operating system
(and perhaps driver) specific. On OSX the version hint is a
minimum version, but on Linux you get exactly the version
requested.
The GLFW FAQ seems to suggest that any driver not supporting
ARB_compatibility may need the hint.
s
The GLFW context version hint is a minimum version, not maximum version so
requesting 4.4 and then falling back to lower versions doesn't make sense.
This change sets the minimum version to 3.2 and attempts to standardize this
across all example apps.
Also print the maximum supported GL version along with the context version
at startup.
We will need to find a solution for Ignacio's older setup, but this at least
fixes the other fallout.
* Use glewIsSupported instead of glewGetExtension
* Convert tabs to spaces
* Remove GLEW static caching (they only get called once)
As a preparation for retiring DrawContext, move SupportsAdaptiveTessellation
method to examples/common/glUtils, which is renamed and namespaced
from gl_common.{cpp,h} to be consistent to other files.
Same renamings applied to other example files.
