Created for editing game files of Turok2 (1998 one) but it can be used for other purposes.
This program finds a hierarchy/structures in .lsm and .lss files and extracts them to files with unknown extension but I am not 100% sure if the decryption of every Turok2 file is done correctly. I don't know much about reverse engineering so we only managed to swap the textures and models among themselves, it can result in fun effects :D
I also managed to change position, size, rotation and even models of some parts of levels eg. chairs on the Harbour5 level:
Check out the screenshots folder to learn more.
Structure of the Turok2 .lsm files:
sb0 -> models
sb1 -> actor attributes?
sb2 -> actor types?
sb3 -> textures?
sb4 -> particles!
sb5,sb6,sb7 -> levels! (sound shaders? event table?)
sb8 -> warp IDs? / spawn-points!
sb9,sb10 -> ? (empty in .lsm and .lss)
sb11 -> weapon effects (same in every .lsm, smaller in .lss)
sb12 -> ? (same in .lsm, 16bytes longer in .lss)
sb13 -> ? (same in .lsm, 24bytes longer in .lss)
sb14 -> ? (same in .lsm, 8bytes longer in .lss)
sb15 -> ? (same in .lsm, 8bytes longer in .lss)
sb16 -> gui textures!
sb17 -> defines sth for gui textures (ids? offsets?)
sb18 -> ? (lector sounds/issues? cos big in ctf and arena and in .lss, but small
in rok?)
sb19 -> ?
sb20 -> ? (empty in .lsm and .lss)
rok->5->17 = graveryard
rok->5->17->6 = fog on the floor/ground of graveryard
rok->5->17->3 = positions of pickables and some walls
rok->5->0->3 = picables, gates and bridges, barrels (generally positions of models?)
rok->5->0->1 = ground hitboxes?
rok->5->9 = Harbour5
rok->5->9->5->9->1 = small ladder
rok->5->9->5->14->1 = House with the rocket launcher (scorpion) on the roof
rok->5->9->5->15->3 = ? maybe this single box near plasma ?
rok->5->9->5->20->3 = ?
rok->5->9->5->21->3 = ?
rok->5->9->5->22->1 = area of second plasma in the small tunnel near boxes
rok->5->9->5->27->1 = left side of the fountain
rok->5->9->5->14->1 // House with the rocket launcher (scorpion) on the roof
1 segment: the right-down chair (amount of segments and its length is in first 2 words = 8 bytes)
1 word: ?? (1 word = 4 bytes)
2,3,4 word: size (float)
5 word: x position (float)
6 word: y position (float)
7 word: z position (float)
8 word: ?
9 word: ?
10 word: ?
11 word: first 2 bytes determine displayed model (EA 00 B3 01 = closed book)
12 word: ?
13 word: y-axis rotation
2 segment: right-top chair
I noticed that some files are additionally compressed with RNC2 (RNC format) - those files start with RNC 0x02 (52 4E 43 02). You can use decompressors like https://github.com/lab313ru/rnc_propack_source or https://github.com/temisu/ancient BUT Turok's RNC uses little endian for header values (Uncompressed Size, Compressed Size, Uncompressed CRC, Compressed CRC) and the decompressors use big endian so you have to either swap the bytes of these values in order or edit the source code of these programs to treat these values as little endian.
For example I decompressed this file which I guess is a texture:
into this:
So if it is the bloodblobs texture my intuition says there should be some RGB encoded but I can't see it ;p Can you help?