http://bugs.freedesktop.org/show_bug.cgi?id=15194
haihao <[EMAIL PROTECTED]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID
--- Comment #6 from haihao <[EMAIL PROTECTED]> 2008-04-10 20:13:13 PST ---
(In reply to comment #5)
> Still has one edge is incorrect, Reopen this bug.
>
> with 965 and 915 driver, the output is:
> [EMAIL PROTECTED] mycase]# ./fpmisc_15194
> get depth values: 0.000000 0.045777 0.045777 0.045777
>
> [EMAIL PROTECTED] mycase]# ./fpmisc_15194
> get depth values: 0.000000 0.000358 0.000358 0.000358
>
> With soft rendering, the output is:
> [EMAIL PROTECTED] mycase]# $SW ./fpmisc_15194
> get depth values: 0.045777 0.045777 0.045777 0.045777
>
This is a new problem. In fact, if draw a polygon without depth offset, and set
the depth value to 0.5, you will also get 0.00, 0.5, 0.5, 0.5.
It seems there is one pixel bias. glReadPixels(24, 50, 1, 1,
GL_DEPTH_COMPONENT, GL_FLOAT, &buf[0]) can get the depth values.
Please open a new bug to track this new issue and I close this bug.
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