Text

GLUT provides functions to draw two types of text:

• Bitmap text - glutBitmapCharacter()
• Stroke text - glutStrokeCharacter()

Both functions draw just a single character
Strings are handled by calling them in a loop

Example code:

• glutText0.py
• glutText1.py
• glutText2.py
• glutText3.py

Bitmap text

Characters are bitmaps - arrays of pixel data

Starting position set by glRasterPos2f(x,y) or glRasterPos3f(x,y,z)

Size never changes (unaffected by scaling or perspective)
Always screen-aligned
If starting point is off screen, nothing is drawn

Stroke text

Characters are series of GL lines

Position, size, and orientation affected by normal GL transformations

glutStrokeCharacter() includes transformation to make next character follow current one
Use glPushMatrix() / glPopMatrix() to contain this as needed