-#ifdef WIN32
- if(drawmode!=motionblurmode) SwapBuffers( hDC);
-#elif PLATFORM_MACOSX
- if(drawmode!=motionblurmode)aglSwapBuffers(gaglContext); // send swap command
-#elif USE_SDL
- if(drawmode!=motionblurmode)SDL_GL_SwapBuffers();
-#else
- #error define your platform.
-#endif // send swap command