Don't completely scrap you materials and start again because they will all get new attribute numbers and will not be compatible with you existing jobs if you ever copy and paste from one to another or if you ever use the Attribute manager to modify materials (surfaces I should say).
Use your existing 17 template (saved as an 18 template) but go through each surface (in Cinerender mode) and either tweak the settings or press the 'New' button and choose to 'Replace settings from catalogue' if there is a Cinerender surface that is better than what you have already (i.e. your earth material).
Of course you can replace it and then further tweak it (for colour, etc.) if you need to.
You can then use the 'Match Settings' button to make sure your Internal Engine material matches the Cinerender settings if you want to. This also seems to update the OpenGL surface.
Now you will have amended surfaces but with the same attribute numbers as before so if you ever want to update an old file just open it in 18 and use the Attribute Manager to 'Overwrite' your surfaces from your template into the job.
Barry.
One of the forum moderators.
Versions 6.5 to 27
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