Eurica! Two things were wrong:
1) There was a 0.5 pixel shift transform in my graphics context imposed earlier in the stack. I use this to render bezier curves to integer pixels, but for rendering bitmaps this offset needs to be reset. After fixing this, however, there was still a little blur, but way less than before. 2) I switched to using NSBitmapImageRep and +[NSGraphicsContext graphicsContextWithBitmapImageRep] instead of the offscreen NSImage and lockFocus. The latter is obsolete BTW. See the example: http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaDrawingGuide/Images/chapter_7_section_5.html#//apple_ref/doc/uid/TP40003290-CH208-BCICHFGA (the "Drawing Directly to a Bitmap" section) On Wed, Sep 24, 2008 at 8:48 AM, Oleg Krupnov <[EMAIL PROTECTED]> wrote: > Yes, I tried it and it doesn't seem to have any effect. > > I have just double-checked regarding - [NSBitmapImageRep > initWithFocusedViewRect]. For an experiment I saved the bitmap to a > tiff file right after capturing the bitmap from screen, and it appears > that the tiff is sharp, not blurry. > > It looks like the temporary thumbnail NSImage spoils the whole thing, > but I can't figure out how to bypass it. > > > > On Wed, Sep 24, 2008 at 8:41 AM, Ken Thomases <[EMAIL PROTECTED]> wrote: >> On Sep 24, 2008, at 12:33 AM, Oleg Krupnov wrote: >> >>> What could be the problem? >> >> Have you tried using -[NSGraphicsContext setImageInterpolation:] after >> locking focus? >> >> Cheers, >> Ken >> >> > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
