TextMesh Pro TMP size tag issue (2.1.0 preview 11)

Thank you for submitting the bug report.

I had a chance to take a closer look at this case and everything is actually working as expected but the behavior is certainly not intuitive.

As it turns out, you have a text object with auto-size with a huge range of 18 - 5000 point size where the optimum point size ends up at 2544.6.

The text contains <size=16> which affects the entire text and forces it to remain 16 points where as such it won't be affected by auto size.

The text is also bold which results in additional spacing between characters. The amount of additional spacing is defined on a per font asset basis and contained in the Font Weight - Bold Spacing section of the Font Asset Inspector. The bold spacing value by default is 7. All spacing adjustments values represents 1 / 100 em which in this case is 7 / 100 em. For example, if the point size is 100 and the spacing value is 100 or 100 / 100 or 1em, the additional spacing would be exactly 100 pixels.

Spacing adjustments like Character, Word, Line, Paragraph, <cspace>, <mspace>, etc. as well as the Bold Spacing are all based on the point size of the text object which in this case being 2544.6 ends up being 7 / 100 * 2544.5 pixels between characters. Given our text has a fixed point size of 16, this additional spacing is massive and certainly looks weird.

Did you mean to use a fixed point size of <size=16> with auto-size?

The size tag value can be defined as fixed value <size=16>, relative size <size=+2>, font units <size=1.5em> or as percentage <size=85%>.

Using Percentage or Font Units (em) would be more appropriate with auto-size whereas fixed size and relative size not so much.

Let me know your thoughts on the above.

 

Auto-size with that large of a min - max is bound to cause other issues. You are going from a point size of 16 to 2544... At 2544 the bold spacing is extreme which makes this seem much worst.

I will take a look at perhaps having bold spacing be affected by current scale instead of object point size.

 

Preview 12 should be available tomorrow.