[Bug 22779] Portal and Uru graphics glitches (fglrx only)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=22779


matejcik at gmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |matejcik at gmail.com




--- Comment #1 from matejcik at gmail.com  2010-06-11 11:17:19 ---
i am seeing this too with Radeon HD 4670 (fglrx) and Ubuntu 10.04, on 32bit
installation, Wine from PPA.

my previous GPU from NVidia was without problems.

In Portal, glitches disappear when i set dxlevel to < 90. When dxlevel is 90 or
higher, glitches appear especially with "difficult" surfaces like reflections
and bump maps.

page[1] suggests that DirectX 9 enables the following features:
* Refractions with the use of a bump-map
* High-quality reflective water (used frequently)
* Softer edge dynamic shadows
* Normal-mapped lighting on models
* Improved-quality specular effects
* High dynamic range rendering
so at least one of them is probably causing the mess.

just to be sure, i tested in windows and the glitches do not appear, thus
ruling out hardware failure

[1] http://developer.valvesoftware.com/wiki/DirectX_Versions

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