STLNormalSwitcher

The STLNormalSwitcher is a small, simple and easy-to-use program that allows you to view STL-files (Surface Tesselation Language) and invert the normal vectors, making them point the opposite way.

It can also convert your STL-files from ASCII to Binary and vice versa.

STLNormalSwitcher displays a workpiece from an STL-file in a lighted OpenGl control allowing to rotate it and inspect it from all sides. Those triangles whose normal vectors point the wrong way can be easily identified, as they don't reflect the light and thus appear darker.

Triangles can be selected either directly in the visualization or in a list, that displays the normal vectors and the corresponding triangles, represented by their vertices. The selected normal vectors can then be inverted, so that they point the right way.

STLNormalSwitcher can open both ASCII and Binary STL-files and save changes in both formats. Thus it can also be used to convert ASCII STL-files to Binary STL-files and vice versa.

Because of the way the picking works, only 16.777.214 triangles can be displayed an picked. That number is only a theoretical limit, since the simple objects STLNormalSwitcher is intended for do not contain that many triangles and since it would require quite a lot of CPU-, GPU- and RAM-power.