On Sun, Aug 17, 2008 at 1:06 PM, Bert Freudenberg
<bert@freudenbergs.de> wrote:
Am 17.08.2008 um 17:56 schrieb Ken Causey:
On Sun, 2008-08-17 at 17:04 +0200, Bert Freudenberg wrote:
Am 17.08.2008 um 11:29 schrieb laurent laffont:
Hi,
I've switched to KDE4 and played with composite rendering. With
last squeak dev images some fonts are not rendered: it seems to be
interpreted as a transparent region by the composite manager (see
screenshot). I've tested this on my two debian boxes.
This problem is not present in sq3.9.1-7075dev08.07.1 image, so I
suppose it's due to NiceFont integration ?
Maybe it occurs more often with nice fonts, but it actually is a
combined VM/image problem.
The VM prefers a 32 bit X visual (with alpha channel) over a 24 bit
one. If a compositing window manager is used, the alpha channel is
used for transparency, but the image generally does not care about the
alpha channel in its frame buffer.
Does that mean there is some core location(s) where the alpha channel
needs to be defaulting to full opacity but currently it is not?
Yes, that is where the transparent areas are under a compositing window manager. I also remember partly translucent menus in (old versions of) Croquet, and having to fix the alpha channel after taking a screenshot.
- Bert -