This week Rolf tries to explain layers, the layers dialogue and layer modes. The image on the left is a result of a little play with layers: a layer with a screen shot of GIMP was duplicated, set to “Grain Extract” mode, shifted two pixels to the left and top and than duplicated again. Looks nice – but why? 
Layers are an important tool in image manipulation. You can isolate different parts of an image with layer masks and so avoid negative consequences of your actions to other parts of the image. And you can play work with different layer modes to achieve effects from a little contrast manipulation to complex changes.
We need Tables of Content for the back episodes. You can help by joining this thread in the Forum.
TOC
00:30 The helpers
03:18 The TOC Project – Help Kevin!
05:10 Layers
05:20 What’s an image?
07:00 Alpha Channel
08:30 Locking a layer
08:50 Layer modes
10:20 Documentation at gimp.org
13:10 Tips in the forum: Contrast reduction
17:10 Visibility toggling
18:00 Changing the layer order
18:40 Protect the alpha channel
19:00 Creating new layers
20:40 Layer masks
23:30 Showing and disabeling layer masks
24:15 Text layers
26:40 Editing a text layer
27:30 Loosing the text properties
29:00 Learning by doing
This work is licensed under a
Creative Commons Attribution-Share Alike 2.0 Germany License.
Tags: layers
Harsh enforcer
Sounds dangerous… Don’t be frightened by these words – a useful post at the wrong place is better than no post at all 
Thanks to Rolf for showing some of my techniques in the past videos to share them with all the MTG viewers – not only with the forum readers.
I learned some useful tips today! Thanks
I can’t wait for an episode like this but on Channels.
Thanks again!
“Tables of Content”
As a native English speaker accustomed to seeing
nonsense like “Table of Content’s” from fellow
English people, let alone people for whom English
is a second language, I salute you.
PS the screencasts are excellent too
Thanks Rolf!
You made it very easy to understand.
Thanks also to Mathias. (Nice Techniques)
Thanks Rolf another great episode.
AmZer, you might have a look at episodes 32,33 and 34 which have some detail about channels.
Will do Kevin. Thanks alot.
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