Solving Faces with Physical Optics (PO)

To solve a model with physical optics (PO), you must activate PO for each relevant face.

1. Select the face(s) in the 3D view or in the details tree that you want to solve with PO.
2. In the details tree, from the right-click context menu, select Properties.
3. On the Modify Face dialog, click the Solution tab.
4. Under Solve with special solution method, from the drop-down list, select one of the following:
   • To use complete ray tracing, select Physical optics (PO) - full ray-tracing.
   • If the assumption can be made that all triangles on which the PO approximation is made, are illuminated, select Physical optics (PO) - always illuminated. Ray-tracing is switched off to reduce run time.
   • To use full ray tracing when the metallic triangles are only illuminated from the front (normals side), select Physical optics (PO) - only illuminated from front.
5. Click OK to save the face properties and to close the dialog.