Jubilee for the SH4 year came!
... and therefore I broke the vow of silence in this topic.
-- joke --
Another (also quite old) solution to the problem of rendering the eyes in the exterior:
Attach the InteriorIllumination controller (located in any interior file)
to the Marine node in Marine.dat file. You will get a positive effect.
The advantage of the first option - you can adjust the subtle shades of color for each eye... and
BumpMap controller is not included in the pool used in this context... but the second way is easier to implement.
P.S.
Since the moderator interferes with describing the solution of problems, I stop talking about solving the described problems by editing the existing shaders in SH4.
Sorry, English is not my native...