NTRANSFORMM

THE BOX'S MAIN HELP:

This function transforms the input normal, NN from the "FROM" 
coordinate system and then through matrix M.
The available coordinate systems are: "world", "camera",
"object", "shader", "screen", "NDC" and "raster".

FROM (input):

The normal is transformed from this coordinate system.
The default is "current". The available coordinate systems are:
"world", "camera", "object", "shader", "screen", "NDC" and "raster".

M (input):

The normal is transformed through this matrix.
The default is the identity matrix.

NN (input):

The normal to be transformed.  
The default is the surface normal, N.

OUT (output):

This function transforms the input normal, NN from the "FROM" 
coordinate system and then through matrix M.
The available coordinate systems are: "world", "camera",
"object", "shader", "screen", "NDC" and "raster".

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