Adding Materials and Rendering(A lesson in Arabic)Add raw materials for a color painting to be closest to the truth. http://newcad.blogspot.com/2007/12/adding-materials-and-rendering.html
More about extruding extrud along spline.We can make extrud with angle and on the path of the object http://newcad.blogspot.com/2007/12/more-about-extruding-extrud.html
Give the third dimension to the design through the thickness of the line.(Lesson in Arabic) http://newcad.blogspot.com/2007/12/pseudo-3d-drafting-using-line-thick...
Drawing a wire-frame models is the simplest way of painting three-dimensional however is not used frequently. http://newcad.blogspot.com/2007/12/basic-wire-frame-models.html
The drawing here is a two-dimensional drawing by 2-d commands using two-dimensional drawing only(Lesson in Arabic) http://newcad.blogspot.com/2007/12/isometric-drawing.html