GemRay can take full advantage of multicore processors. If you set the dispersion to a value greater than zero, GemRay will separate the red, green, and blue rays, assign each the refractive index corresponding to the wavelength and material and then follow the paths separately. Just like in a real gemstone, the farther a light ray travels through the material, the more the light is absorbed. GemRay lets you select the color of the material. While GemCad is concerned primarily with the shape of the gemstone, GemRay is concerned with its appearance and performance. Its purpose is to predict what a faceted gemstone will look like when it is cut and to optimize its angles for the best optical performance. GemRay renders images of gemstones using the technique of ray tracing. GemCad frees the user from the tedious calculations required to determine angles.
Advanced users can use GemCad to create new designs. You can scale a diagram to make it fatter, skinnier, taller, or shorter to fit a certain piece of rough. You can take an existing diagram and modify it to optimize its optical performance for a different material. Unlike your faceting machine, GemCad has an Undo button. You can see the design at every stage as it evolves. Proof-cutting a design on the computer allows you to check the accuracy of the diagram and discover pitfalls before wasting valuable rough. GemCad has three main purposes: Proof-cutting an existing diagram. View more website layouts and web design articles. You can try it for a period of 30 days with no obligation to purchase it. If you have the Datavue II database of facet designs installed on your system, GemCad can access it directly. The end product is an accurate faceting diagram that shows several views of the stone with accurate angles, indexes and dimensions. GemCad can follow paths of light rays through the stone to allow you to optimize a design to minimize light loss. GemCad simulates a faceting machine and displays accurate 3-D views of the gemstone.
GemCad is a computer-aided design CAD program for faceted gemstones.