【转帖】several Problems In Rendering
 

several problems in rendering
several problems in rendering
hello.
i'm trying to render dwg files and satellite images simultaneously using the same directx9 device.
but i have some problems in doing that.
when rendering dwg files only, it was ok.
but if rendering them simultaneously, the dwg was not rendered.
by the way, only the time i changed the size of the window, it was drawn on the screen well.
so i inserted onsize() before update(), and it worked well.
code:
cview *pview = (cview*)(*m_lstview.begin());
crect rc;
getclientrect( pview->m_hwnd, &rc );
odgsdcrect outputrect( odgsdcpoint(rc.left, rc.bottom), odgsdcpoint(rc.right, rc.top) );
mdeviceptr->onsize(outputrect);
mdeviceptr->update(0);
but its rendering speed was not good.
is there any methods to resolve this problem?

1) what dd version do you use?
2) i don't very understand the question. do you want to say that calling onsize() before single update() noticeably reduces the performance? or are you calling the pair onsize()-update() frequently? if so, what does changes between these calls? do you change the drawing or just change the camera?
sincerely yours,
george udov
1) i use the latest dd version ( 1.14.02 )
2) i mean that anything can not be seen on the screen if excute just update() alone. only when i changed the size of the window, dwg files were drawn. so i inserted onsize() into the drawing routine. then i got the result that i wanted. but the pair onsize()-update() cause the flickering.

dd samples (e.g. odamfcapp) always call odgsdevice::onsize() before first updating. gsdevice must know the client size :-)
sincerely yours,
george udov