Function Draw.PushLineWidth

void PushLineWidth (

float	pixels
bool	automaticJoins=true

)

Draws all lines until the next PopLineWidth with a given line width in pixels.

Note that the line join algorithm is a quite simple one optimized for speed. It normally looks good on a 2D plane, but if the polylines curve a lot in 3D space then it can look odd from some angles.

In the picture the top row has automaticJoins enabled and in the bottom row it is disabled.