Re: [osg-users] vsync (was: OSG CPU usage)

2007-11-20 Thread Ákos Maróy
Paul Martz wrote: It's really implementation dependent. The NVIDIA OpenGL driver on Windows, for example, allows you to issue a certain number of SwapBuffers calls before it blocks. I think the default is 2 calls, but this is controllable with a driver setting and can be as high as 10 (I

Re: [osg-users] vsync (was: OSG CPU usage)

2007-11-20 Thread Robert Osfield
Hi Akos, On Nov 20, 2007 9:34 AM, Ákos Maróy [EMAIL PROTECTED] wrote: Paul Martz wrote: It's really implementation dependent. The NVIDIA OpenGL driver on Windows, for example, allows you to issue a certain number of SwapBuffers calls before it blocks. I think the default is 2 calls, but

Re: [osg-users] vsync (was: OSG CPU usage)

2007-11-20 Thread Paul Martz
Paul Martz wrote: It's really implementation dependent. The NVIDIA OpenGL driver on Windows, for example, allows you to issue a certain number of SwapBuffers calls before it blocks. I think the default is 2 calls, but this is controllable with a driver setting and can be as high as

Re: [osg-users] vsync (was: OSG CPU usage)

2007-11-19 Thread Ákos Maróy
Paul Martz wrote: Vsync is usually on by default, can be toggled on or off by some driver options, and can also sometimes be toggled by OpenGL extensions. but does this mean that if I call rendering blocks unti the next vsync clock tick? Akos ___

Re: [osg-users] vsync (was: OSG CPU usage)

2007-11-19 Thread Robert Osfield
On Nov 19, 2007 9:25 AM, Ákos Maróy [EMAIL PROTECTED] wrote: Paul Martz wrote: Vsync is usually on by default, can be toggled on or off by some driver options, and can also sometimes be toggled by OpenGL extensions. but does this mean that if I call rendering blocks unti the next vsync

Re: [osg-users] vsync (was: OSG CPU usage)

2007-11-19 Thread Bob Kuehne
On Nov 19, 2007, at 6:02 AM, Robert Osfield wrote: On Nov 19, 2007 9:25 AM, Ákos Maróy [EMAIL PROTECTED] wrote: Paul Martz wrote: Vsync is usually on by default, can be toggled on or off by some driver options, and can also sometimes be toggled by OpenGL extensions. but does this mean

Re: [osg-users] vsync (was: OSG CPU usage)

2007-11-19 Thread Paul Martz
but does this mean that if I call rendering blocks unti the next vsync clock tick? It's really implementation dependent. The NVIDIA OpenGL driver on Windows, for example, allows you to issue a certain number of SwapBuffers calls before it blocks. I think the default is 2 calls, but this is

Re: [osg-users] vsync (was: OSG CPU usage)

2007-11-18 Thread Ákos Maróy
Robert Osfield wrote: As long as vsync is on, as it should almost should be then the CPU load shouldn't be overwhelming with a standard frame loop. you mentioned vsync several times in this discussion. can you elaborate, how this is turned on? I understand what you're saying is that there's a

Re: [osg-users] vsync (was: OSG CPU usage)

2007-11-18 Thread Paul Martz
Robert Osfield wrote: As long as vsync is on, as it should almost should be then the CPU load shouldn't be overwhelming with a standard frame loop. you mentioned vsync several times in this discussion. can you elaborate, how this is turned on? Vsync is usually on by default, can be