Sorry, found it, setting the Billboard/Sprite blend mode to "Over" did the trick.
On 08.09.2011, at 12:31, Sebastian Mecklenburg wrote: > Hi, > > Great, thanks a lot! It works fine. > Unfortunately the background is always black opaque although I do > CGContextClearRect() before I draw into the context. > Does someone know why this happens? I checked Apple's FastImage sample code > and there is the same problem. > > Thanks and regards, > Sebastian Mecklenburg > > > On 07.09.2011, at 17:32, vade wrote: > >> That is totally the correct way to do it. >> >> You can either make a class that implements a QCPluginOutputImageProvider >> protocol or call the helper function >> >> [context outputImageWithPixelFormat Oh god this is a long method] as seen in >> the QCPlugin docs. >> >> >> On Sep 7, 2011, at 8:24 AM, Sebastian Mecklenburg wrote: >> >>> Hello, >>> >>> I have a nice shape generator that I want to port to QC. >>> Now I render the result into a CGContextRef using commands like >>> CGContextBeginPath(), CGContextAddCurveToPoint() etc. >>> What would be the best way to reuse this in a QC plugin? Mu current plan is >>> to set up a CGBitmapContext, render into that and then convert it to a >>> QCPlugInOutputImageProvider. Is that reasonable? >>> There has been some discussion about his topic in the past, but I didn't >>> find any good solution. >>> >>> Thanks and regards, >>> Sebastian Mecklenburg _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
