POV-Ray : Documentation : Charset
  POV-Ray 3.6 Documentation Online View Irid_Wavelength Max_Trace_Level Charset

This allows you to specify the assumed character set of all text strings. If you specify ascii only standard ASCII character codes in the range from 0 to 127 are valid. You can easily find a table of ASCII characters on the internet. The option utf8 is a special Unicode text encoding and it allows you to specify characters of nearly all languages in use today. We suggest you use a text editor with the capability to export text to UTF8 to generate input files. You can find more information, including tables with codes of valid characters on the Unicode website The last possible option is to use a system specific character set. For details about the sys character set option refer to the platform specific documentation. Irid_Wavelength Max_Trace_Level

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