So having found it again, it's not quite 100% what we're looking for, as it deals with ships, but I found the same system works with costumes for captains. And I was mistaken, it is only one guy making a post, not a full thread.
Each block of code indicates a specific mesh and texture to render, for example
Part
{
Bone Stf_Uniformupper
Geometry F_Uniformu_Metalbikinitop_Orion_02
Material Orion_Metal_Parts_02
Patterntexture Orion_Metal_Parts_02
Color_0 21, 21, 21, 255
Color_1 21, 21, 21, 255
Color_2 21, 21, 21, 255
Color_3 21, 21, 21, 255
}
is used to render a black orion metal bra. Removing this segment of code causes the bra to not be loaded, leaving the character with only a bare chest. However the chest and legs are also "parts" described this way. So to render the bare torso and legs you need for example
Part
{
Bone Stf_Chest
Geometry F_Chest_Basic_01
Material Basic_Chest_Skin_F_01
Patterntexture Basic_Skin_Mm
DetailTexture F_Chest_Bare_01_N
Color_0 64, 64, 64, 255
Color_1 64, 64, 64, 255
Color_2 64, 64, 64, 255
Color_3 64, 64, 64, 255
Colorlink MirrorGroup
}
Part
{
Bone Stf_Hips
Geometry F_Hips_Basic_01
Material Basic_Hips_Skin_F_01
Patterntexture Basic_Skin_Mm
DetailTexture F_Hips_Bare_01_N
Color_0 64, 64, 64, 255
Color_1 64, 64, 64, 255
Color_2 64, 64, 64, 255
Color_3 64, 64, 64, 255
Colorlink MirrorGroup
}
the best way I found was to get a skimpy outfit, one that already includes the chest and legs, then change the Geometry part on the legs to F_Hips_Basic_01 to get the regular legs as opposed to the skirt legs. From there just remove the blocks that relate to clothing, and voila. Nude character. Just be careful not to remove the blocks of code relating to body parts like feet, hands, head, eyes, et cetera. Be warned, there are multiple instances of the costume in the demo file for some reason, I have found it best to replace all instances of the costume you want to replace. It may not be necessary, but it's the most reliable.