Sorry, it's hard to explain. Let me try again! :-)
If I have a bitmap size of 512 x 70, I want the text sized to fit
that space -- not too small, not too big. If I hook up the Display
Width to the Width input of the billboard as you suggest, then the
text does not scale to fill up the bitmap, it is a constant size
relative to the glyph size. The effect of the "DanText2"
attachment was very close to what I am looking for, but there is
bad anti-aliasing because the text is not at the "perfect
resolution" as you say.
Isn't there any way to have the font size scale to fit the rendered
pixel size? Should I report it as a bug/feature request?
No, there's no way you can get the font size to automatically adjust
so that the entire text fits in the area - you could try to fake it,
but quality is going to be pretty bad.
