I'm working with Gazebo and trying to find a good way to draw lane lines on the field. The idea is that I'd have some terrain with a grass image texture, and on top of that I'd have white painted lane lines that the robot's camera will pick up. I'm considering just using gzbuilder with a bitmap and then having a ground plane on top of it, so just the peak of the Terrain shows (and it can be colored white) and mostly I'd see the ground plane (grass). However this seems like it'd be a bit more expensive to the CPU than necessary, but constructing the lane lines out of SimpleSolids seems too expensive to the human drawing the map.

Has anyone else done similar? Does anyone have an ideas of how to go about this?