I've uploaded two mods to the Google site.
The "FOTRS Ultimate Optical Correction_Interior Update" is in the main "FOTRS 2.0 for Subsim" folder. It's in .rar format. Once downloaded, extract it to your JSGME "MODS" folder to activate after the FOTRS Alpha.
This modification is extensive, starting with correcting the Optical Views found in-game. For those that don't know, the American periscope lens Field of View should be 32 degrees wide/tall at low magnification. At High Magnification the FoV is 8 degrees wide/tall. The two magnificaions, x1.5 and x6 are multiples of 4, making it easy to switch between the two for same measurements. Each Telemeter Division (the hash marks on the lens) subtends 1 degree. At 1000 yards distance, one degree of angle is equal to 52.333 feet (the Navy calls it 52.5 ft for brevity). A ship placed at 1000 yards from the beam of a sub (looking port or starboard) will now measure correctly. Any length or height can now be checked of objects placed at this position. For further understanding, the "Discussion" part of the
Optical Targeting Correction thread should be read.
The second mod is an additional resolution/aspect ratio correction for those using a 5:4 aspect ratio. The "FOTRS Optical Correction 5 to 4 Aspect Ratio" can be found in the "Plugin" mods folder. For those using an aspect ratio of 5:4, which usually is for resolutions of 1280x1024, activate this additional mod after the "FOTRS Alpha"; and the "OC_Interiors Update" mods.
Either of these two mods will correct the Periscope's
and TBT views for accurate measurement. However, issues with the various other resolution/aspect ratios are yet to be corrected in regards to the TBT. Although the Periscope's all have a common measurement within the various resolutions (except for the 1280x1024), the TBT is different in most other resolutions. For instance, if you're using the 1920x1080 resolution (a 16:9 aspect ratio), you will find a difference in Telemeter Division counts between the TBT and the Periscope's over the same two objects. This will require me to make specific Aspect Ratio modifications as "Plugin's" for other resolutions to correct the TBT.
Within these additional "plugin's" I'll be placing a corrected "Navigation Map Submarine Bearing Compass" which will provide a corrected measurement for the Nav Maps range/bearing wheel that surrounds the sub. A corrected Bearing Compass is included in the "OC_Interiors Update" for the default 1024x768 resolution. When you pull out the ruler from the center of the sub, the bearing range lines will now be correctly measured. This will allow the target "dot" to be measured accurately within the 1500 yard Bearing Compass.
One question, what's the numbering system for the type of mod I'm using as a plugin? Optical Corrections should use what group? Where can I find the other numbering headings and for what type of mod grouping?