   2D Line Stippling?
  Hi all,I'm looking for a way to implement 2D line stippling.  From what I've read, it does not appear as though this is available in OpenGL and that only 1D line stippling or 2D polygon stippling is possible.  If anyone has any ideas on how I should go about this, I would really appreciate it.Right now, I guess I'm planning on using textured quads to achieve this.  The problem is that I really want an overlay look to this, so I want to preserve the pixel width of the line.  I suppose because of this, I need to convert my cartesian coordinate locations to screen coordinates and render  the images through a 2D orthographic projection so I can preserve scale.  I just hoped there would be a simpler option to achieve this effect like glEnable(GL_LINE2D_STIPPLE); glLineStipple(1, <bitmap>);.Anyway, thanks for reading and for any suggestions you guys might have.   
  I may be misunderstanding what you're after, but couldn't you use a projected texture to achieve the same effect? Use GL_LINES but generate texture coords in screen space, then use your stipple pattern as a texture and alpha testing to only rasterise the pixels you want.   