This discribes the workaround to make seamless textures in a single way.
Start is to make .skm files in Sketchup
Take a look at StoneCAD. You find a lot of Stone/Brick Textures in the Installation folder. http://www.culturedstone.com/stonecad/
Install the massmaterial.rb script into the Plugins folder of Sketchup.
Run the script and select the jpg folder of Stoncad. Click on any image. That's all. You'll find all jpg into the material browser in Sketchup under " In Model" Click on the arrow to save the materials into a new folder and give it a name. Now you have them all as .skm files.
Note: these are not seamless Textures.
So download the free TextureViewer and install it. http://www.3d-rekonstruktionen.de/downloads/
Take also the free script " rps_texturewrite.rb" from Renderplus ( smustard ) into the plugins folder. Note you have to set a new folder " texture_test" into C>temp folder.
( All scripts are available on Didiers site: http://www.crai.archi.fr/RubyLibraryDep ... _Depot.htm
Now you can set a material you like onto a face in Sketchup.
Select the material and run the texturewrite script. The image should be in the texture_test folder. Start the Texture Viewer and open the image file. In the menu you'll find create seamless Texture. Run it and save the file.
Import the image as texture and aply it. It's now seamless.
In the material Browser you 'll find the Texture in " In Model ". Remove the old one ( purge unused ) and save the new seamless into the folder you like. ( I made a seperate folder for the seamlessstone skm files, so I'll hold it saved but do not mix it )
For a try out you'll find some textures in the Material section