RE: from NSImage to a Texture

Subject: RE: from NSImage to a Texture
From: email@hidden (Thomas Jahnsen)
Date: Mon, 29 Sep 2003 22:01:47 -0400

Hi

I just created a tool to do exactly this thing. I can drag any image onto my app, and it make it into a texture.

My approach was to get a NSBitmapRep to gain access to such data as pixel dimensions. Then use [NSImage -lockFocus] and the function NSReadPixel to read each pixel onto a mulit-dimensional array of your choosing; something like GLubyte pm[height][width][depth].

I also made a function to translate between pixel formats, it works quite well.

Best,
Thomas Jahnsen
email@hidden

>Message: 1
>Date: Sun, 28 Sep 2003 00:42:45 +0800
>From: Aaron Boothello <email@hidden>
>To: email@hidden
>Subject: from NSImage to a Texture
>
>Alright, ive gone throught the sample code (OpenGL Image) and im upto the 'load an image into an NSImage ' stage. now what ? how do i get the info i need from the NSImage into a texture to use in OpenGL ?
>I had asked a similar question sometime back and i got responses asking me to check out NSImage and NSImageRep and the 'OpenGL Image' sample code. i've looked around at tutorials and im still unclear on how to get from an NSImage to a texture that i can use in OpenGL. please help :).
>
>Cheers,
>Aaron
>
>
>--__--__--
>

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