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Old 06-06-2018, 00:34
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Compression test on unreal engine 3 texture file *.tfc

Original file Textures.tfc = 1.0Gb

Textures.tfc + lzma = 712mb

Later used UELR to decompress the *tfc file

after processing with UELR new file size= 1.37G

Test:

UELR(1.37G)+lolz =503mb (took 50min to compress)

UELR + srep + rz = 528mb

UELR + precomp + srep + lzma = 566mb

UELR + lzma = 573mb

UELR + srep + lzma = 575mb ( 2mb more)

lolz is the best compressor, but took very long to compress.
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Old 06-06-2018, 05:40
Andu21 Andu21 is offline
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Try increasing the dictionary in lolz, x1, x2 modes and tt4,8,16. Also play with UELR's options.
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Old 06-06-2018, 05:40
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2 mb more because LZ match length <= lzma dictonary
Quote:
Originally Posted by Andu21 View Post
Also play with UELR's options.
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Old 06-06-2018, 06:36
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Quote:
Originally Posted by Andu21 View Post
Try increasing the dictionary in lolz, x1, x2 modes and tt4,8,16. Also play with UELR's options.
I am new to this. I don't know much. I tried all the options in UELR, i get the same file size of 1.37Gb.

u = unpack archive
ulv = unpack lossless recoverable blocks in verbose mode.
b=brute force parameters
x= unpack x64 ue headers

could u suggest me any parameter?
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Old 07-06-2018, 05:46
Andu21 Andu21 is offline
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Sorry, i was thinking about OGGRE when i wrote that. You could brute force every option in lolz but i personally think it's a waste of time considering how big the file is.
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Old 07-06-2018, 23:25
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Question

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Originally Posted by Andu21 View Post
Sorry, i was thinking about OGGRE when i wrote that. You could brute force every option in lolz but i personally think it's a waste of time considering how big the file is.
When i tried Unreal engine decompressor on it.. i found that .tfc file was encrypted. Can we remove encryption from that file?
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Old 08-06-2018, 04:08
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For Compressing Unreal Engine Files for e.g .tfc, .upk, .umap etc etc

I have found that by using uelr+srep+lolz given me the compression rate was slightly strong than using uelr+srep64+lolz
So my opinion is to use uelr(default)+srep( -m3f -ia- -l512 )+lolz(-d256mb -tt8 -mc1023) on these unreal engine files

But if you want lolz to fire up the speed then use lolz(-dto0 -tt1 -dm00 -mc1023)

Note: These are outdated settings as we have new tools since from 2 months, i am pretty busy to try em
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Old 08-06-2018, 21:59
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Thank you psycho_rage i would try them, i think -m3f uses large amount of RAM ~8gb. Can i use -m2f ?
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Old 09-06-2018, 02:57
Sergey3695 Sergey3695 is offline
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Quote:
Originally Posted by PsYcHo_RaGE View Post
srep( -m3f -ia- -l512 )
-ia-: disable I/O acceleration in order to reduce memory usage (-m5 only)
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Old 09-06-2018, 06:32
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I tried what u suggested. I used the faster method on srep file (1.12gb), finally it reduced to 495 mb (8mb lesser than before). I tried the other one and the file size was almost close to 490 mb or something, i closed it as it took more than an hour to compress..
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Old 09-06-2018, 06:34
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Quote:
Originally Posted by PsYcHo_RaGE View Post
For Compressing Unreal Engine Files for e.g .tfc, .upk, .umap etc etc

I have found that by using uelr+srep+lolz given me the compression rate was slightly strong than using uelr+srep64+lolz
So my opinion is to use uelr(default)+srep( -m3f -ia- -l512 )+lolz(-d256mb -tt8 -mc1023) on these unreal engine files

But if you want lolz to fire up the speed then use lolz(-dto0 -tt1 -dm00 -mc1023)

Note: These are outdated settings as we have new tools since from 2 months, i am pretty busy to try em
Will LZO compressor do any better?
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Old 10-06-2018, 22:50
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Quote:
Originally Posted by TheGeekyGamer View Post
Thank you psycho_rage i would try them, i think -m3f uses large amount of RAM ~8gb. Can i use -m2f ?
try it but i think its of no use on unreal engine files
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Old 10-06-2018, 22:52
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Quote:
Originally Posted by Sergey3695 View Post
-ia-: disable I/O acceleration in order to reduce memory usage (-m5 only)
you are right in some way but sometimes it reduces the compression ratio to some percents on different file formats
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Old 10-06-2018, 22:53
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Quote:
Originally Posted by TheGeekyGamer View Post
Will LZO compressor do any better?
might be but i think no it will not but you can try yourself to see what it will give
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Old 24-06-2018, 05:36
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Quote:
Originally Posted by PsYcHo_RaGE View Post
For Compressing Unreal Engine Files for e.g .tfc, .upk, .umap etc etc

I have found that by using uelr+srep+lolz given me the compression rate was slightly strong than using uelr+srep64+lolz
So my opinion is to use uelr(default)+srep( -m3f -ia- -l512 )+lolz(-d256mb -tt8 -mc1023) on these unreal engine files

But if you want lolz to fire up the speed then use lolz(-dto0 -tt1 -dm00 -mc1023)

Note: These are outdated settings as we have new tools since from 2 months, i am pretty busy to try em
Umm.. how can i add lolz with the above parameters to my arc.ini ? Simply copying lolz.exe to my bin folder in freearc directory and adding the lines to arc.ini work?
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