Library is untested and has no examples

[pwaller]

This repository is made by enthusiasts. Unfortunately it's not ready-to-ship code, and may require some expertise to use.

We should add some good examples. Unfortunately, neither me nor @jteeuwen (AFAIK) have time to work on this at the moment, so help is welcomed!

Feel free to ping this thread on a frequency less than once/month to show your interest.

Supercedes #18 #19 #20 go-gl/gl#58

Sorry for all the posts on the same matter, I was attempting to get in contact with someone and it seems it has worked. Last night I attempted to use this library and had little luck. I only used loadttffont and printf which is fairly simple but threw errors at runtime. I will continue to play around with the code and post any results

[fanmanpro]

Anyone got an working example of this yet?

[pwaller]

Not that I am aware, sorry. The situation is still the same as in the original post.

[cmaglie]

I'm not an OpenGL expert, I'm just playing a bit and wanted to share my discoveries, here what I've found after some trial-and-error:

To load a font

	fontFile, err := os.Open("Roboto-Light.ttf")
	if err != nil {
		log.Panicf("Open font file: %s", err)
	}
	defer fontFile.Close()
	font, err := gltext.LoadTruetype(fontFile, 25, 32, 127, gltext.LeftToRight)
	if err != nil {
		log.Panicf("LoadTruetype: %s", err)
	}

25 is the font size
32 and 127 are the first and last gliph that should be loaded into the texture used for later rendering (in this case the most common ASCII characters).

In the drawing loop I used the following lines:

	gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)

	gl.MatrixMode(gl.MODELVIEW)
	gl.LoadIdentity()

	gl.Color4f(0, 0, 0, 1)
	font.Printf(0, 0, "Hello")

and indeed this is enough to print "Hello" in the top left corner of the screen.

There's also https://github.com/loov/zombies-on-ice containing a great reference on drawing images and font.

[4ydx]

If looking for another example of rendering golang text: https://github.com/4ydx/gltext/tree/master/example

[dmitshur]

It's been a while and no one stepped up to fix and maintain this library. It's in a poor shape, and without someone actively working on it, it won't get better.

To help maintain a high bar for packages in go-gl namespace, I propose we move this to go-gl-legacy. This will help future people who run into it, and accidentally expect it to be in good shape (e.g., see go-gl/example#63).

If someone wants to actively work on it, they can do so and we can consider moving it back when it's in a good shape.