The Mesh Viewer is an easy-to-use, lightweight application for displaying three dimensional models (triangular meshes) from a variety of file formats. It uses OpenGL to render the models. Triangular meshes can be displayed texture mapped (with optional bilinear filtering), solid, or as a wire frame (all lines or just the front lines). Loaded models can be rotated, translated, and scaled (all done with the mouse). The model is lighted by multiple light sources. Viewpoints can be saved.