docs: document VMware OpenGL 3.3 support

Signed-off-by: Brian Paul <brianp@vmware.com>

diff --git a/docs/vmware-guest.html b/docs/vmware-guest.html
index b5ea4e0bebc4f1c433c6a671dc312ae736aee919..284c6c261d21d32ae8392728960e6b5355e85103 100644 (file)
--- a/docs/vmware-guest.html
+++ b/docs/vmware-guest.html
@@ -26,6 +26,31 @@ VMware Workstation running on Linux or Windows and VMware Fusion running on
 MacOS are all supported.
 </p>
 
+<p>
+With the August 2015 Workstation 12 / Fusion 8 releases, OpenGL 3.3
+is supported in the guest.
+This requires:
+<ul>
+<li>The VM is configured for virtual hardware version 12.
+<li>The host OS, GPU and graphics driver supports DX11 (Windows) or
+    OpenGL 4.0 (Linux, Mac)
+<li>On Linux, the vmwgfx kernel module must be version 2.9.0 or later.
+<li>A recent version of Mesa with the updated svga gallium driver.
+</ul>
+</p>
+
+<p>
+Otherwise, OpenGL 2.1 is supported.
+</p>
+
+<p>
+OpenGL 3.3 support can be disabled by setting the environment variable
+SVGA_VGPU10=0.
+You will then have OpenGL 2.1 support.
+This may be useful to work around application bugs (such as incorrect use
+of the OpenGL 3.x core profile).
+</p>
+
 <p>
 Most modern Linux distros include the SVGA3D driver so end users shouldn't
 be concerned with this information.
@@ -227,6 +252,16 @@ If you don't see this, try setting this environment variable:
 then rerun glxinfo and examine the output for error messages.
 </p>
 
+<p>
+If OpenGL 3.3 is not working (you only get OpenGL 2.1):
+</p>
+<ul>
+<li>Make sure the VM uses hardware version 12.
+<li>Make sure the vmwgfx kernel module is version 2.9.0 or later.
+<li>Check the vmware.log file for errors.
+<li>Run 'dmesg | grep vmwgfx' and look for "DX: yes".
+
+
 </div>
 </body>
 </html>