Rendering a section view of a 3d mesh in a single pass

A system comprising:

• a processor coupled to a memory and a graphical user interface, the memory having recorded thereon a program for rendering, by a Graphical Processing Unit (GPU), a section view of a 3D mesh in a single pass, that when executed by the processor causes the processor to be configured to:
• obtain the 3D mesh, the 3D mesh having convex polygons;
• obtain a clipping plane;
• and
• render the section view of the 3D mesh by the processor being configured to:
• render the convex polygons of the 3D mesh by the processor being configured to, for each convex polygon:
• determine if the convex polygon intersects the clipping plane;
• if the convex polygon intersects the clipping plane, compute a pair of points on edges of the convex polygon intersected by the clipping plane;
• and
• store the pair of points in a GPU-writable buffer;
• and
• render the stored pairs of points in the GPU-writable buffer as a set of lines, the rendering of the section view thereby including the rendered convex polygons and the rendered set of lines.