Individual frames can have arbitrary frame delays for maximum flexibility. A layer can have a maximum of 24 image frames. This function was implemented to exploit built-in functionality of glpnglib, and can be useful for reusing a single texture with different transparency masks. The default is to repeat the texture in both the S and T directions. These keywords are designed to be easy to remember, but relate directly to OpenGL blendfuncs.
NONE Turns blending off for the current layer.
Use this for base layers, or layers using alphatesting for transparency. This is meant for use with detail textures which should be greyscale images with neutral average intensity. Subtractive blending using color information. Subtractive blending, using alpha transparency. Advanced users can directly set the blending destinination and source factors using these commands.