Newsgroups: comp.sys.amiga.advocacy Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!psuvax1!news From: melling@cs.psu.edu (Michael D Mellinger) Subject: Re: NeXT/Amiga Flamage: Get a life. In-Reply-To: es1@cunixb.cc.columbia.edu's message of 10 Apr 91 00:57:29 GMT Message-ID: Sender: news@cs.psu.edu (Usenet) Nntp-Posting-Host: sunws5.sys.cs.psu.edu Organization: Penn State Computer Science References: <10902@uwm.edu> <&5aGlabl1@cs.psu.edu> <1991Apr10.005729.22997@cunixf.cc.columbia.edu> Date: Wed, 10 Apr 91 03:22:31 GMT Lines: 24 In article <1991Apr10.005729.22997@cunixf.cc.columbia.edu> es1@cunixb.cc.columbia.edu (Ethan Solomita) writes: I must be missing something here. The 040 is about three times faster than the 030, right? And the color NeXT is 12 bits as opposed to 2 bits on the old NeXTs, or six times the bit planes. So, the color NeXT is twice as slow with the graphics/GUI as the original NeXT, right? Truthfully I don't know what an alpha channel is. Is it basically an overlay screen? It allows for transparancy so you can see through objects. The NeXT OS 2.0 sped up the NeXT Postscript Display too. I can't say by how much, but there was a noticable difference on the Cube before we upgraded to the 040 and after we installed 2.0. I'm not sure how fast the NeXTstation color is but it is definitely slower than the NeXTstation mono. A lot of the problems that people attribute to Display Postscript are in fact due to paging. You can do animation on the NeXTstation color, but I'm not exactly sure how much on this either since I haven't scrutinized a color machine . -Mike