You might be thinking of the article written by Pascal of Cubic Team. I think the archive is called pasroto.zip and it explained why rotozoomer performance woul

You might be thinking of the article written by Pascal of Cubic Team. I think the archive is called pasroto.zip and it explained why rotozoomer performance would tank when the texture was rotated by 90 degrees (since you're stepping in the Y direction and blowing out your cache for every pixel). Really interesting at the time.