wined3d: adjust glPolygonOffset size

Henri Verbeet hverbeet at
Sun Dec 27 12:40:25 CST 2009

2009/12/27 Austin English <austinenglish at>:
> See bug 18993. Original author is credited in patch (  Dorek Biglari ).
This doesn't look right from my understanding of the d3d9 depth bias
behaviour. Afaik D3DRS_SLOPESCALEDEPTHBIAS is a multiplication factor
for the maximum depth slope (i.e. difference in z-value over distance
for a polygon's vertices), just like in OpenGL. I attached an
alternative patch to the bug.

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