"For every complex problem, there is a solution that is simple, neat, and wrong."
- H.L. Mencken
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Query FailedPintea
Thursday, September 8, 2005

doesn`t work on my radeon 9800 pro
Nitro
Thursday, September 8, 2005

To Overlord:
I think I know what is the problem with too little blur. Humus uses RGBA16 format for blur textures because values in blur textures are very low and need this 16bit precision to be processed correctly. But when you look at this document: http://download.nvidia.com/developer/OpenGL_Texture_Formats/nv_ogl_texture_formats.pdf you will see that format RGBA16 is just converted down to RGBA8. So these artefacts are caused by low precision. The solution could be using multiplied blur texture or using floating-point texture format also for the blur textures.
To geforceFX users:
Btw. I it's possible run this demo (with few modifications) also on geforceFX (Using arb_texture_rectangle and nv_float_buffer).
To Humus:
Could you please write which Ati cards do support FBO extension.
thks
eXile
Thursday, September 8, 2005

Oh, Update:
The image looks totally crazy, but sometimes, if I switch to windowed Mode and back to Fullscreen, the screen is okay, but some artifacts are still visible.

I made a smaller screenshot, and you might notice the diagonal line through the picture:
http://paulmueller88.pa.funpic.de/trash/hdr2.jpg
eXile
Thursday, September 8, 2005

Radeon 9600, newest Catalyst, bad result:

http://paulmueller88.pa.funpic.de/trash/hdr.jpg
Overlord
Thursday, September 8, 2005

It works well on my 6800ultra.
But it does look butt uggly if you use to little blur.
To the rest, the 6800 card should have full support for both NPOT and FBO since atleast 71.xx (NPOT was supported by the 6x00 release drivers).
Martin
Wednesday, September 7, 2005

Does NOT work on my 6600 + 78.01. On the screen is only FPS value and nothing more ;o(
rlx
Wednesday, September 7, 2005

Awesome demo, Humus.
Sometimes i also get these bugs like Heady (ati mobility x700 128mb, cat 5., but after deleting your registry entries and restart your program they are gone.
Heady
Wednesday, September 7, 2005

Nice demo, but like SUNSH I get a strange view after switching to fullscreen (totally blurred and like looking after a totally scratched glass).

I have a 9800 Pro 256MB newest catalyst driver.

Close and rerun doesn't help to fix the problem.

Switching back to windowed-mode can (sometimes) fix this behavior.

I will try to get an screenshot...
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