Topic: [tutorial] update to viewport 'transparency'

[kat]

A couple of changes to Blender since the original Viewport Transparency tutorial was written necessitated an update and re-write. Now includes both main approaches to getting transparent textures to display in the 3D View of Blender 2.5 series. New screenshots, new text.

• http://www.katsbits.com/tutorials/blender/blender-2.5-scene-view-alpha-transparency.php

Note: an email has been sent out everyone who purchased the high-res PDF version from the store, if there are any problems get in touch on sales@katsbits.com

[Wasa]

Design Note: alpha channelled textures are sometime referred to as being "32bit" images. This is slightly incorrect because 'true' 32bit images are in fact "CMYK", the "Cyan, Magenta, Yellow, Black" colours associated with printing (colour brochures, books etc.). Be sure to double check the correct type of "32bit" image is being used before preceding.

This isn't correct either, a 32bit image with 32bit color depth would be 1 pixel in size.
Bit refers to color depth not image. For example a CMYK tiff would be 32bit color depth, not a 32bit image.

[kat]

This isn't correct either, a 32bit image with 32bit color depth would be 1 pixel in size.
Bit refers to color depth not image. For example a CMYK tiff would be 32bit color depth, not a 32bit image.

You're being a bit too literal with your interpretation of that section So whilst you are technically correct, in common usage and language that distinction is rarely, if ever, made (by Blender users) so the general point is to simply make sure people check they're using "RGB+A" images and not "CMYK" (both often referred to as being "32bit images"). I've seen that mistake happen quite a few times hence it being mentioned.