From: Markus Priglinger (mp++at++gup.uni-linz.ac.at)
Date: 07/03/2002 09:48:17
Hi Performers,
I have a pfPipeWindow (the 'main' window) with a pfChannel attached to it.
Later (main window is open), a pfWindow (win2) is attached to the main
pfPipeWindow.
I want to render into both windows using my channel callback function.
Problem: The main window will be rendered correctly, the second remains
unchanged.
Overlay window should be avoided, only one channel should be used (both if
possible).
Code looks like this:
// shared: pfPipeWindow* winMain; pfWindow *win2; ...
// winMain already configured and channel attached
shared->winMain->open();
// attach draw callback to winMain
shared->channel->setTravFunc(PFTRAV_DRAW, drawChannel);
// create second win
shared->win2 = new pfWindow();
shared->win2->setWinType(PFPWIN_TYPE_X);
shared->win2->->setOriginSize(oriX, oriY, resX, resY);
shared->win2 = new pfWindow();
pfList *winList = new pfList();
winList->add(shared->win2);
shared->winMain->setWinList(winList);
shared->win2->open();
.
.
pfFrame();
// -----------
// callback function
void drawChannel (pfChannel *, void *) {
// draw to MAIN window
shared->winMain->setIndex(PFWIN_GFX_WIN);
shared->winMain->select();
glClearColor(0.0f, 0.4f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
pfDraw();
// select SECOND window and render to it
shared->winMain->setIndex(0);
shared->win2->select();
glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
pfDraw(); // once again
}
Windows but the background should look the same,
don't know why only main window looks fine.
I'm running Linux Redhat 7.2 and Performer 2.5.1
Any suggestions on how to solve these problems?
Thanks.
--------------------------------------------------------
Dipl.-Ing. Markus Priglinger
VR/Graphics Programmer
Department of Graphics and Parallel Processing (GUP)
Institute of Technical Computer Science and Telematics
TNF-Tower, Room #627
Johannes Kepler University Linz
Altenbergerstr. 69
A-4040 Linz, Austria, EUROPE
Tel: +43 732 2468 8884
Fax: +43 732 2468 9496
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