Show a text as texture with OpenGL ES 2.0

Question

I'm developing an Android 2.2 application. I use C++ to manage all OpenGL ES 2.0 stuff.

I want to show a text with OpenGL, but I don't know how (I'm very, very new with it).

I read that I can render common strings to textures, and simply draw those textures. But how can I do that?

Thank you.

score 2 · Accepted Answer · edited May 23 '17 at 12:04

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This has already been answered right here on Stack Overflow.

A very basic and useful approach is to store a rendered alphabet in a texture. Then you can write your own method to lookup every character of a passed string and draw it to the screen.

edited May 23 '17 at 12:04

Community

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answered Mar 03 '11 at 16:53

Matthias

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That solution isn't C++ :-( I think he's after a C++ answer. (So am I BTW) There are some ES 1.1 solutions out there, but not an obvious 2.0 solution yet. FTGLES is close. – 101010 Apr 24 '11 at 15:51

score 2 · Answer 2 · edited May 24 '11 at 07:22

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You can use Cairo to render text (with any unicode font) to a texture and then map the texture directly.

edited May 24 '11 at 07:22

thomasfedb

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answered May 23 '11 at 16:26

Sandeep

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Show a text as texture with OpenGL ES 2.0

2 Answers2