Have you read the material guide?
Kerkythea 2007 Material Editor Guide

How to Make Your Own Material Library To Share

To save your own material library:
1 - Go to Settings>Materials
2 - Click “Save” to save your library you have created (give it a good name)
This will create the folder in your Kerkythea’s local program folder under Materials>Libraries>yournamehere
3 - Go to Settings>Materials>Click “Open” Button
4 - Select the NAME of your material library you have built and saved
5 - Click “Export”
6 - Save the library wherever you choose - (probably do not want to change the name)
7 - Now KT has zipped it up into a package for you named with a .mat.zip
8 - share it :)

BONUS TIP
To get your material library to have a picture or personal material library icon with it:
Make the image you want (render an example with the K-ball scene) resize the image to 128px X 128px square.

Save a copy of this .jpg with the exact same name of your material library into the library folder BEFORE you use Kerkythea to export the library to the zip file. If you’ve already exported it, you can still drop a copy of it into the zip file.

←Create Your Own Globals and instantaneously insert your own sky
←Create Your Own Model Library pull-down menu like this one

← Learn to Rotate A Spherical Sky interactively... simply powerful.

Go to KTWiki section: Render Presets and Render Passes

SU2KT is an extremely powerful plugin written by KT Team member Tomasz. It will allow you to place textures and lights inside of SketchUp, then export your scene with the textures and lighting (including auto-setup of sun and sky) to Kerkythea. You can download the SU2KT ver. 3x from our repository.
There are tutorial files in SketchUp format provided with the download. Please follow that .skp format tutorial to get the most out of the SU2KT exporter.

Video Tutorials for SU2KT
1 - Basic export from SketchUp Watch Now (8.5Mb)
2 - Terrain and Photo-match export from SketchUpWatch Now (4.4Mb)
3 - Material Import from Kerkythea into SketchUp, and export from SketchUp to Kerkythea Watch Now(11.4Mb)

You can download the original tutorials in .skp format. Some things have changed since these were made, yet you still may learn a thing or two.
This is the .skp format tutorial that came with SU2KT2.2. It has a lot of valuable info STILL APPLICABLE to SU2KT 3.0 which is not mentioned in the video tutorials above.

1 - Blender2KT Watch Now (5.8Mb)
2 - Blender2KT Watch Now (18Mb)
3 - Blender2KT Watch Now (16.5Mb)
4 - Blender2KT Watch Now (6.3Mb)
5 - Blender2KT Watch Now (2.0Mb)

Setting up Kerkythea on a MacDownload it here

This PDF has instructions for running Kerkythea on a Mac, with specific instructions for installing X11 either from the Install and Restore discs or from a download.

A bonus for SketchUp users - there are also instructions for running Kerkythea from within the new 3.05 version of SU2KT

These tutorials are the “Oldies but Goodies”. They will be out-dated in many ways, but the basics of Kerkythea are still there.

Export/Import Tutorial by Clipi (These video tutorials are somewhat out-dated, Please see the SketchUp section for current information for exporting from SketchUp to Kerkythea.

Part 1: Bath Tutorial Part 1 (~3.5Mb .swf video)
Part 2: Bath Tutorial Part 2 (~6Mb .swf video)

GUI Tutorial by Clipi, the Basic Getting Started with Kerkythea’s Graphical User Interface is a Video Tutorial. Watch It (6Mb)

Camera Setup Tutorial by Clipi cameratutorial.zip

GI Tutorial by U3dReal Read Tutorial PDF. Get GI Tutorial Scenes here

Outdoor Tutorial by Clipi (for 1.2.05) currently missing link

Indoor Tutorial by Clipi (for 1.2.05) currently missing link

Beginners Tutorial by man and mouse (infrequently updated) currently missing link

Put Your City at the Top Of KT’s Locations List Even if it’s not even on the list! Go To Locations tutorial.

How to use a depth render to control DOF in a Photo editing program. Adding Depth Of Field in Photoshop AddingDOFinPhotoshop.htm

DokuWiki syntax