just presenting a quick sample of a 2D panel with specular and normal map (Ankor Shaders).

for a test I took a screenshot from DCS, did two flat layers (rectangles) in gmax. main cockpit texture + glass. next I made a specular map and normal map from the texture. its exported as a common CFS3 virtual cockpit md3, so it can be planted with common working gauges, dynamic reticle etc. easy to do.

to get a lot more 3d like effect, the main object texture can be more layers, oval shape, sphere, a box... its up the creator, how much it needs to act like a panoramatic view.