Fast wxFont rendering on a wxGLCanvas

[Jengu]

I'm trying to figure out a quick way to render text using wxFonts on a wxGLCanvas. This is proving to be sort of hard.

First, I draw the text to a wxMemoryDC. Then I convert the wxMemoryDC to a wxBitmap. Then I convert the wxBitmap to a wxImage. THEN I use wxImage::GetData() to make an OpenGL texture.

This is really inefficient and slow. Is there a faster way? The only thing I can think of is using a separate library for font rendering (one of the many OpenGL wrappers around freetype).

[Ryan Norton]

I'm trying to figure out a quick way to render text using wxFonts on a wxGLCanvas. This is proving to be sort of hard.

First, I draw the text to a wxMemoryDC. Then I convert the wxMemoryDC to a wxBitmap. Then I convert the wxBitmap to a wxImage. THEN I use wxImage::GetData() to make an OpenGL texture.

This is really inefficient and slow. Is there a faster way? The only thing I can think of is using a separate library for font rendering (one of the many OpenGL wrappers around freetype).

wxGLCanvas is a pretty light wrapper... for fonts you'll have to get down to platform-specific gl calls like the windows version at
http://msdn.microsoft.com/library/defau ... o_1h6f.asp

[geon]

White your own print function. I reccoment you put your font in a pre-rendered texture and render each character as a quad.