Path: chuka.playstation.co.uk!news From: Newsgroups: scee.yaroze.programming.2d_graphics Subject: Re: 16-bit bitmaps???... Date: Sat, 29 Jan 2000 14:14:29 -0000 Organization: PlayStation Net Yaroze (SCEE) Lines: 35 Message-ID: <86ut7i$bqc1@chuka.playstation.co.uk> References: <86k90k$pb41@chuka.playstation.co.uk> <388F2E2E.52AC2B16@which.net> <86oelr$2lh2@chuka.playstation.co.uk> <3891DC05.6E0AFA61@which.net> NNTP-Posting-Host: modem-2.thallium.dialup.pol.co.uk X-Newsreader: Microsoft Outlook Express 4.72.3110.1 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 >Scott Ward wrote: > >> As far as I know Adobe only lets you swap between 8 and 16 bits 'per >> channel', a channel each for the red, green & blue values. What I need is >> any package that will deal in 16-bit images (5-bits per channel). >> >> Please!!!!!!!!!! :o) You can change the bit-depth by image->mode->indexed colour. The pop-up menu allows you to set adaptive ( which I usually use ), then the bit depth underneath. Unfortunately this only goes up to 8-bit, but is usually fine for most tim stuff. Incidentally, use 'previous' instead of adaptive if you're wanting the image to use the same palette as the last indexed colour image you set. This is good for ensuring your images all conform to the same clut. The problem you're having is more to do with image format where Photoshop is concerned. You can't use indexed colour, so you'll ned to work in an image format that deals in 16-bit ( different from 15-bit - there's 6 bits in the green channel ). Try generating your images as targa files - it allows you to save as 16-bit, so it will ensure you're working within the colour range of 16 as opposed to 24 bits. After that all I can suggest is to then resave your finished images as 24-bit bmps and select 16 bits when converting in timutil. Hopefully it will work as Photoshop should be fine in splitting the 16 bits to 24 bits. The only difference between these modes ( apart from size ) is the first three bits of a 24 bit channel are missing for 16-bits, which are really dark/low colour values anyway. I think. Hope that is some sort of help. Incidentally, I looked through 'The Photoshop 4 Bible' and couldn't see any other way. Stuart.