Graphics hardware does not display the graphics correctly in large coordinate systems (~1 000 000 and above). This problem affects only a small portion of users, as most mine coordinate systems are within the boundaries that can be accurately displayed. These floating point errors also affect the accuracy of mouse pick events and the "rain" option where fall objects are released from a grid above the topography (see picture below). The "rain" functionality is mostly used to determine water flows and water accumulation areas, but could also quickly identify poor rock fall catchment areas on walls.
Trajec3D now automatically accommodates large coordinate systems without any effort from the user. Thanks for the feedback on this issue.
I am working on incorporating a second material interaction in the engine, and much of the ground work is in now in place. The second material interaction does create some complications in the code that will take a while to resolve.
Happy modelling, Frans.