Font Size

[Callumk0104]

What is the function called to change the size of the font when drawing text.

Thanks.

 

[Holzchopf]

You either load a bitmap font the size you like or you use SetScale to scale the output text (but this will make the font blurry).

Both Mojo and Mojo2 don't use "native" font render machines, meaning they don't load system fonts like Arial.ttf which can be drawn in any size or style. What they do is bitmap font drawing: They load an image containing glyphs (ASCII 32-127 I think) and draw them when drawing text. The default fonts are
modules\mojo\data\mojo_font.png
modules\mojo2\data\mojo2_font.png

 

[dawlane]

If I remember there is no function to change the size of a font.
You have three approaches

1. Have another scaled version of the Font loaded and use SetFont.
2. Use PushMatrix, Scale, DrawText, PopMatrix command in the order given.
3. Create an array of source image positions, widths and height and use the DrawImageRect command.

 

[dawlane]

If you want better control of a font, then search the forum for the FontMachine. It may have been updated to work with the latest version of Cerberus.

 

[AutmnLeaf]

Though this is an old thread, here's my two cents: If like, you might want to try my free Font 2 PNG program, link. At the page there are example programs using the output of Font 2 PNG. The programs are written in Monkey X and work as such with Cerberus X. Also two links for implementing a font class for Font 2 PNG's output. Font Classes include changing font size.

 

[MikeHart]

I think i should add a fontsize factor to CXs font class

 

[Holzchopf]

Wait, does this mean you have found a way to load a ttf file in Monkey / Cerberus? I'll check this out!

 

[MikeHart]

Wait, does this mean you have found a way to load a ttf file in Monkey / Cerberus? I'll check this out!

No I don't. I was thinking of a scaling factor while drawing the font. We're still talking bitmap fonts.

 

[dawlane]

You should be able to use the Freetype library to render ttf's in a GL/EGL context. There should be plenty of tutorials, etc on the subject.

Here's a quickie.

 

[dawlane]

I should point out that you will of course be taking a performance penalty hit using ttf with GL.

 

[Holzchopf]

And why? Isn't rendering glyphs stored in a texture loaded from a png file not very similar to rendering glyphs stored in a texture filled via a routine that renders vector based fonts? I can see why this would affect loading speeds. But the actual rendering?

 

[dawlane]

Isn't rendering glyphs stored in a texture loaded from a png file not very similar to rendering glyphs stored in a texture filled via a routine that renders vector based fonts?

Yes they do work in a similar fashion. The main issues would be getting the best use of texture space, dealing with unicode and how much text you can get into a single Vertex Buffer Object to improve performance.

It my be worth looking into Font-Stash and FTGL.

 

[Raph]

There was a TTF renderer for Monkey. The module was called tfont. See http://www.mojolabs.nz/posts.php?topic=208470 -- there's alsdo a link to a Google Code repo.

 

[MikeHart]

Thanks. I was looking for that post for ages.

 

[wick]

@Raph Ah! This looks useuful. Is the google code repo broken though? I'm getting a "There was an error getting resource 'downloads':"

So the only copy is that big copy+pasted block?

 

[dawlane]

@wick
Use the download link. https://code.google.com/archive/p/monkey-ttf-module/source/default/source

 

[MikeHart]

Search in github for tfont. It will bring up a repro with chris's code. I was playing with at it is usable. The advantage is that runs on all mojo targets. Now i will think of a way to integrate it and port this to mojo2 ss well.