[osg-users] Loading problem, OpenVR integration

[Sebastian Messerschmidt]

Hi,


> Hi Robert! Thank you for your kind reply.
>
>
> robertosfield wrote:
>> Is the scene static or is your application adding new scene graph
>> objects through the lifetime of the application?
>
>
> The scene is completely static and motionless :)
>
>
> robertosfield wrote:
>> It's only new objects that you need to compile to make sure that the
>> graphics objects are created and ready to download to the GPU
>
>
> Ok, perfect. I'm pretty sure that the compilation process is already performed on the entire scene by the system I'm working on.
> Do you think that my problem could be caused by a missing compilation of objects? If you say that it might be the case, I will investigate more on this.
I struggled with some instance data not being sent to the GPU (2 
gigabytes worth of data textures) resulting in stutter. I ended up using:
viewer->getDatabasePager()->setDoPreCompile(true);

which solved the problem for me, as I preload the scene anyways. So the 
stutter is converted to a long pause before the first frame is displayed.

Maybe Robert can explain what is happening when using the pre-compiled 
option is used. It helped with the textures for sure.

Cheers
Sebastian