Imagination PowerVR SDK Blog

emulating getQueryObjectuiv


#1

For an port of a opengl software i need to reach the functionallity of getQueryObjectuiv.

is there a chance, to do such an occlution check with opengl es?


#2

No, query objects are not part of OpenGL ES or any released extension for it.


#3

Ok. I know, because i found nothing about such an extension.Â

So do you see a chance to reimplement the same in an other way?


#4

No, at least not without being extremely slow. What is the occlusion query used for?


#5

It is used for identifying not visible octrees. Application is doing heavy geometry calculations. Identifying these trees will cause, that they are not updated some frames.