kc3-lang/ftgl

diff --git a/docs/images/texturefont.png b/docs/images/texturefont.png
index e326e30..e4de211 100644
Binary files a/docs/images/texturefont.png and b/docs/images/texturefont.png differ
diff --git a/docs/tutorial.dox b/docs/tutorial.dox
index dae3062..7a3977f 100644
--- a/docs/tutorial.dox
+++ b/docs/tutorial.dox
@@ -38,11 +38,17 @@
  \image html vectorfont.png
  \image latex vectorfont.eps "" width=0.7\textwidth
 
- \subsection texture Texture fonts
+ \subsection texture Textured fonts
 
- Texture fonts are probably the most versatile type. They are fast,
+ Textured fonts are probably the most versatile types. They are fast,
  antialiased, and can be transformed just like any OpenGL primitive.
 
+ - Texture fonts use one texture per glyph. They are fast because glyphs are
+   stored permanently in the video card's memory.
+ - Buffer fonts use one texture per line of text. They tend to be faster
+   than texture fonts when the same line of text needs to be rendered for
+   more than one frame.
+
  \image html texturefont.png
  \image latex texturefont.eps "" width=0.7\textwidth