Hi, I am having various problems getting my app to work correctly when FSAA is on.
If I call readpixels thousands of times and then render a triangle, the readpixels take about 100x longer then when FSAA is off.
If when I call readpixels I call glflush and then render a triangle, the triangle is never rendered, the screen flickers as though it is continually changing res.
If I only call readpixels a few times, say five, the triangle is rendered but I get white lines flickering across the screen.
The problem only occurs on my GF4 4600 machine and not on my GF2 PC.
I am fairly sure my card is ok since I have no other problems at all. The problem is linked to calling readpixels a large number of times with FSAA on, there are probably not many apps out there that do that.
Here are three executables that show the problem, source is included (it's a very simple app). http://www.adrian.lark.btinternet.co.uk/FSAABug.zip
Is anyone able to reproduce the problem i describe?
This has happened under various detonator versions.
[This message has been edited by Adrian (edited 02-22-2003).]