SwapBuffers()
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From: winapi on 16 Mar 2010 12:58 Hello, I have an application that runs OpenGL in a custom splitter window. I had eliminated all window flicker, when I decided to run my OpenGL render in a seperate thread for each of the render viewports. Upon window splitter resizing, I am now getting window flicker. Also, some strange OpenGL resizing in the viewports. I am passing the size values of the window into the OpenGL thread, as to make sure the gluPerspective is updated. I was wondering if anyone might know? why my "flicker free" window, without using threads, now has "flicker" upon using threads for my "render window"? If I don't set dwFlags "PDF_DOUBLEBUFFER", then the flicker stops. But obviously this is needed? So my guess is it has something to do with SwapBuffers()? Thanks!
From: Cathy L. on 16 Mar 2010 18:15
winapi a �crit : > Hello, > > I have an application that runs OpenGL in a custom splitter window. I had > eliminated all window flicker, > when I decided to run my OpenGL render in a seperate thread for each of the > render viewports. > > Upon window splitter resizing, I am now getting window flicker. Also, some > strange OpenGL resizing in the viewports. I am passing the size values of > the window into the OpenGL thread, as to make sure the gluPerspective is > updated. I was wondering if anyone might know? why my "flicker free" window, > without using threads, now has "flicker" upon using threads for my "render > window"? > > If I don't set dwFlags "PDF_DOUBLEBUFFER", then the flicker stops. But > obviously this is needed? So my guess is it has something to do with > SwapBuffers()? > > Thanks! > > Hello try it on comp.graphics.api.opengl. Cathy L. |