Re: NSImage vs. NSBitmapImageRep color differences?

Subject: Re: NSImage vs. NSBitmapImageRep color differences?
From: Marcel Weiher <email@hidden>
Date: Mon, 30 Jun 2003 23:44:12 +0200

On Monday, June 30, 2003, at 05:10 Uhr, Christopher Nagel wrote:

I am using an NSImage to create an OpenGL texture but I'm getting color differences depending on how I do it. Using an NSBitmapImageRep yields the correct image, whereas using [NSImage TIFFRepresentation] yields a yellow-hued image. --Yet NSBitmapImageRep is initialized with TIFFRepresentation.

I was trying to avoid the overhead of creating the NSBitmapImageRep, just for kicks.

Overhead of what kind? Generally, it is NSImage that adds overhead, NSBitmapImageRep is the 'correct' low level / direct representation of bitmap images. NSImage is a kind of coordinating wrapper class that often does unexpected things, such as rendering the data to a cache, which may involve ColorSync, for example.

Marcel

--
Marcel Weiher Metaobject Software Technologies
email@hidden www.metaobject.com
Metaprogramming for the Graphic Arts. HOM, IDEAs, MetaAd etc.
1d480c25f397c4786386135f8e8938e4
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	>NSImage vs. NSBitmapImageRep color differences? (From: Christopher Nagel <email@hidden>)

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