Created attachment 53 [details] detector construction, OpenGL view and results of raytracing I'm trying to simulate a G4Torus inside a G4Ellipsoid. The OpenGL output is what I expect (attached), but the output of my raytracing function shows the G4Torus as shorter than expected and with an additional disk of very high intensity detached from the torus depending on the point of view. My raytracing function uses a geantino to save images representing the length traveled inside each material, so a high intensity disk means something very thick, which does not make sense. I'm including the DetectorConstruction class which includes the world, ellipsoid and torus, and screen captures of the OpenGL showing the G4Torus section from the side with the expected results and the screen captures of the raytracing of the G4Torus section and the G4Ellipsoid containing it from the side (top views), 10 degrees off the side (middle views), and 20 degrees off straight on (bottom views). I've used the raytracing function a lot and it shows the ellipsoid correctly (except for the issues the G4Torus creates), so I'm pretty sure this is not the issue, but the issue is with the G4Torus. Thanks!
Dear Ioannis, Thank you for the posting and for the files. I have reproduced your problem. It seems that there is a problem in G4Torus with Phi section. This is already a problem report about G4Torus with Phi section. I will make your report as a duplicate, then you will be informed on the progress in two reports. Best Regards, Tatiana Nikitina *** This problem has been marked as a duplicate of problem 1081 ***