Using Eagle3D and POV-Ray, you can make realistic 3D renderings of your PCB’s. Eagle3D is a script for EAGLE Layout Editor. This will generate a ray tracing file, which will be sent to POV-Ray, which in turn will eventually pop out the finalized image of your PCB.
Sometimes its nice for esthetic reason’s to know how your PCB will look after completion. Or sometimes is useful for technical issues to know how your Printed Circuit Board will look before you produce it. This instructable will show you how its possible to get a 3d view of your PCB using Eagle3D and POV-Ray
Get 3d images of your PCB using Eagle3D and POV-Ray: [Link]
you should also check my tutorial on diy pcb using photo etching