I have tried to use Text Emitter by typing Thai text in the text field.
The typing was successful.
But when I played it, there was nothing on screen.
How to solve this problem?
Thanks.
Sombat

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The text in Popcorn FX is mapped form a Diffuse map under text emitter.
It is possible to use any language by creating custom language maps from sprite PSD templates
You just need to substitute English alphabet letters with corresponding Thai letters according to Thai keyboard layout, save it as transparent PNG and apply it to the text emitter.
The text in the text field would still needs to be typed with English characters, which correspond to the Thai alphabet map you just created.

Thanks for your reply.
I am learning Blender too. Blender allows me to type in Thai and make a 3D text very easily. Hope that Iclone will arrive to a real multilingual integration.
Sombat

Thanks for your advice.
I never used this feature. 
I use GIMP and don't know how to proceed to get a Thai text.
Sombat

Well, that is not exactly Reallusion's fault, but rather how Popcorn FX operates Text Emitters - through the sprite font templates.
Same goes if you need to change the text font.

GIMP could open certain PSD files. So it worth to try. You could even open a PNG file enclosed in the package,
 temporary apply a black layer underneath for a better contrast and the apply Thai letters over the existed template.
It is a hassle no matter how you go about it, but that is the only way.

On the other hand it is going to be very difficult, but not impossible to implement Thai alphabet.
The problem is, that there are letters, which go one on top of the other.
Popcorn FX however allocates characters literally from the image disregarding font spacing.
So each line of text should be comprised from 2 rows.
Here I have substituted 5 characters and the Diffuse map looks like this:




In iClone I used 2 rows to write one word - "hello"




So you have a job to do - substitute all 44 Thai letters