Theme: 3D-View
Help, my circuit board is displayed translucent as if it were made of glass?
Mostly this is due to an incorrectly closed board outline, see arrow:
(Fig. 1: Outline not closed correctly)
The board outline must consist of a closed polyline, which is located usually on layer "23, board outline".
This closed polyline can include lines, tori (arcs) and splines. Please check the ends of the elements in the board view by zooming in. The [#] key for the x-ray mode can also be helpful in finding the leak.
If you double-click a line with M11, you can also check the coordinates of the end points.
Drill holes from solder pads or vias that intersect the board outline or that intersect each other can also throw off the 3D calculation of the board surface:
(Fig. 2: Drill holes too close)
The design rule check DRC can easily find holes that are too close to each other.
