Thanks a lot for your reply. I share a few problems and solutions.

Problem #1
I got texture related errors with some fonts when I used my own EXTENDED.DAT included all characters.

Solution #1
I altered my EXTENDED.DAT to include the minimum characters for Japanese texts.

Problem #2
I found ...

Finally I succeeded in displaying all Japanese characters.
The cause of the trouble was mismatch between Japanese fonts and EXTENDED.DAT which defined printable characters.
I made my own EXTENDED.DAT included all characters with following Python script.


data = []
for i in range(0x10000):
data ...

Thanks a lot for your detailed explanation. I respect you and your company.

I followed the steps and succeeded in displaying Japanese characters with normal fonts.
However there is some trouble yet. About a half of all characters are shown, but the others aren't.
I found characters before U+6DB2 ...

I'm trying to display Unicode characters, but I have some troubles. Someone, please help me.

I have found following related files.
Font entities: Core/*.ttf
Text entities: Data/Text/*.txt

I could change fonts and texts. However Unicode characters after U+051D weren't displayed.
Is there a hard ...