I think you might be getting to the limitations of AA and sampling in general. If a fence is one half of a pixel thick, you need at least 2x SSAA. If a fence is 1/4th of a pixel thick, you need at least 4x SSAA. If a fence is 1/32nd of a pixel thick, you need at least 32x SSAA, because 16x SSAA will look ugly. And I could go on...
Announcement
Collapse
No announcement yet.
MSAA Anti-Aliasing Finally Comes To Radeon R300g
Collapse
X
-
Comment
-
Marek, it would be nice to print on stderr a message when MSAA is enabled and which mode (similar to the radeon: Acquired Hyper-Z. messages). I am not sure if the in-game settings always work and who get the precedence (game setting or env var). Thanks.
Comment
-
I also noticed a problem: when using MSAA 6x and high resolutions (1920x1080) the screen flashes and get very slow. At the same resolution with MSAA 4x it works fine, probably a limit of some time is reached. Using a RV530.
Possibly related to the fact my cards now get detected as a R580?
GL_RENDERER = Gallium 0.4 on ATI R580
GL_VERSION = 2.1 Mesa 9.1-devel (git-959e83d quantal-oibaf-ppa)
GL_VENDOR = X.Org R300 Project
Comment
-
Originally posted by oibaf View PostMarek, it would be nice to print on stderr a message when MSAA is enabled and which mode (similar to the radeon: Acquired Hyper-Z. messages). I am not sure if the in-game settings always work and who get the precedence (game setting or env var). Thanks.
Originally posted by oibaf View PostI also noticed a problem: when using MSAA 6x and high resolutions (1920x1080) the screen flashes and get very slow. At the same resolution with MSAA 4x it works fine, probably a limit of some time is reached. Using a RV530.
Possibly related to the fact my cards now get detected as a R580?
The issue with the flashing screen must be caused by something else.
Comment
-
Originally posted by marek View PostDone. You have to set "RADEON_DEBUG=msaa" though.
Fixed in git. Only the renderer string was wrong. The card was detected correctly.
The issue with the flashing screen must be caused by something else.
Comment
-
Originally posted by oibaf View PostI also noticed a problem: when using MSAA 6x and high resolutions (1920x1080) the screen flashes and get very slow. At the same resolution with MSAA 4x it works fine, probably a limit of some time is reached. Using a RV530.
Comment
-
Comment