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http://www.openoffice.org/issues/show_bug.cgi?id=85029





------- Additional comments from [EMAIL PROTECTED] Fri Jan 11 08:22:16 +0000 
2008 -------
@jvromans: sorry, not wanting to leave you in the dark. Quote from Impress.xcs:

<prop oor:name="SlideshowRespectZOrder" oor:type="xs:boolean">
        <!-- OldPath: -->
        <!-- OldLocation: -->
        <!-- UIHints: Slideshow Z order for animations -->
        <info>
                <author>THB</author>
                <desc>Indicates whether the slideshow should respect shape 
z-order while
animating shapes. Disabling this can improve slideshow performance</desc>
                <label>Enable shape z-order during slideshow animations</label>
        </info>
        <value>true</value>
</prop>

What this means: if you have this enabled, and there's a bunch of shapes on your
slide that are visibly stacked (i.e. slightly overlapping, such that one can
discern which ones are in front of others), and you have one of those shapes
being more in the background animated, the animated shape will remain _behind_
the other shapes (this is the visually correct way to do it, and it's how other
presentation packages implement that). If you _disable_ this, animated shapes
will always be in the foreground, disregarding their z order. Depending on
content and platform, this can be faster, as there's less to render and less to
buffer in background pixmaps.

Generally, things are slower, but not as bad as you describe (see also simonbr's
comments) - this is prolly triggering a worst-case scenario in your X server.
And anticipating something like that, I've added this config item, such that
people can switch back to the old behaviour.

@all: can somebody else confirm this on ATI hardware?

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