[osg-users] Migration from OSG 3.1.5 to 3.4.0 / Qt 4 to Qt 5

Robert Osfield robert.osfield at gmail.com
Mon Jan 4 14:27:56 PST 2016

Hi Andrew

The reason why z buffer etc. Is off is the your setup hasn't set it up as
there is no global stateset to the camera you are passing to the Viewer.

I have discussed this topic quite a but since OSG-3.2. Please see the

On 4 Jan 2016 10:02 pm, "Andrew Cunningham" <andrewC at mac.com> wrote:

> Hi,
> Although I now have rendering of my objects happening in my Qt5/OSG 3.4.0
> widget I am having a issue with simple polygonal objects rendering "on top
> of each other" as if there is no depth (Z) buffer in operation. I am using
> fairly vanilla OSG code to set up the model and camera that worked as
> expected in a MFC/OSG 3.0.1 world.
> I am completely at a loss as to why a Z-buffer is not operating. GL_BLEND
> is definitively OFF.
> Any ideas?
> Thanks!
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=65937#65937
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