Freeware: Polygon

NeonJax 3D 1.0.2 NeonJax3D is a software-rendered 3D screensaver demo which supports stereo LCD glasses. It features a cool color-changing plasma background and an object consisting of 1,000 Points of Light, in addition to traditional polygon objects.

HeliosPaint 1.2.1 HeliosPaint is a freeware paint program for creating and editing images. Includes pencil, line tool, paint brush, spray can. Paint can with fill sensitivity. Shape tool for creating freehand, regular polygon and star shapes.

Rendera 1.5 Rendera is a free graphics program suitable for artistic painting, photo-retouching, colorizing, and seamless tile design. It emulates common art tools and features an easy-to-learn, labeled interface.

Calc 3D Pro 2.1.5 Calculator for statistic, function plottting, vectors, matrices, complex numbers, coordinates, intersections. For objects like point, line, plane and sphere distances, intersections, volume, area of squeres, area of a triangle can be calculated.