Path: chuka.playstation.co.uk!news From: Scott Cartier Newsgroups: scee.yaroze.freetalk.english Subject: Dealing with black pixels Date: Thu, 26 May 2005 11:25:20 -0700 Organization: PlayStation Net Yaroze (SCEE) Lines: 17 Message-ID: NNTP-Posting-Host: z06.nvidia.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en My memory is a bit fuzzy on the subject. Can anyone tell me how the Playstation deals with black pixels with/without the STP set? I remember that for non-translucent sprites a black pixel with STP=0 will be treated as transparent and one with STP=1 will be opaque. But what about translucent sprites? I'm guessing that translucent sprites treat black pixels with STP=0 as fully transparent and STP=1 as translucent black (not opaque). Can anyone cofirm? STP=0 STP=1 +--------------------------------- Non-translucent sprite | Transparent Opaque black Translucent sprite | Transparent Translucent black Scott