saveEnvironment( %fileName ) - This will save your current environment settings to a text file, has to be in a folder. Example: saveEnvironment( "config/mySettings.txt" );
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That's environmental settings, not a sky add-on.
how can I make the atmosphere files and stuff?
alright, but i said that because he askedbut if he means actually putting the pictures he has into his environment add-on, he should probably look in the default environment add-ons to see what the image files are called. they have to be 512x512 px in size iirc