Vector rendering quality in general is a problem on iOS in GPU mode. The
way around it is to use Bitmaps in place of vectors, where you can.
In Flash CS5.5, there is an easy way to do that - you can set the
"Render" drop down to "Export As Bitmap" (in Properties, under Display).
This will give you both a performance boost in GPU mode, as well as a
rendering quality improvement.
Quick tip, if you want to use that for a bunch of instances of the same
asset - apply the export setting the the nested content, instead of
multiple instances. This will cut down on runtime memory usage, since
the flash runtime can reuse the same 1 bitmap texture.
Kevin N.
On 6/9/11 3:09 PM, Kurt Dommermuth wrote:
Hi All,
I am porting some games over to iOS and have run into a problem.
I was very pleased to see the difference between using AUTO and GPU in
the publish settings. The performance improvement when using GPU was
significant. The games would almost be unplayable without it.
However, it seems that the GPU renders rounded objects very poorly.
Most of my circles end up looking like Hexagons - yes, that bad. Most
rounded edges get squared off pretty severely. Not all, but most. It
may be that these graphic are vectors in the IDE. I have other games
that use bitmaps and were coded in Objective C and this wasn't an
issue.
Perhaps it is the way Flash compiles the flash. Perhaps the means of
converting vectors to bitmaps is not particularly good and the issue
gets compounded by the GPU. I don't know.
Has anyone else run into this? Any solutions other than redrawing
these as bitmaps (there are probably thousands so it is not really an
appealing option)
Flashcoders has been awesome, but are there any other mailing list
that may be more appropriate places for me to ask?
Thanks everyone,
Kurt
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