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# Compression Commit This commit performs both lossless and lossy compression on every .obj and .png in homedecor. The .png files were all 100% losslessly compressed using ect.exe and optipng.exe (more details below) at maximum settings. The .obj files were lossy-compressed so that comments were removed, trailing 000's were removed and all numbers rounded to 3 decimal places max. Blender exports at 6 decimal places but for minetest, 3 decimal places is the absolute maximum a person with anything under a 256K screen will ever need. ## Results ``` Original entire modpack size: 6343.5 KB New entire modpack size: 5312.2 KB Total Reduction: 1031.3 KB (16.3% less) ``` Please note that actual media size is likely more like 4,500 KB so media reduction is more around 20-25%. ## Details / What actions were actually performed Used these programs: https://github.com/ExeVirus/Compress-Obj https://sourceforge.net/projects/optipng/ https://github.com/fhanau/Efficient-Compression-Tool Ran this command on every .obj: (fast) ``` luajit.exe compress.lua -f <file> -precision 3 ``` Ran these commands on every .png: (slow) ``` ect.exe -9 -strip --allfilters-b <file> optipng.exe -o7 -strip all -clobber <file> ``` Note that for future compression, I recommend only using optipng.exe instead of both. ECT can get better results but it takes a LOT longer and only ever saves another 1-2% of the file size. Not worth an extra 10-20 seconds per texture file in my opinion. ## Time spent Roughly 2 Hours from start to finish + commit + PR
2021-01-23 13:28:20 +01:00
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g 1
add "open front" version of large speaker
2015-03-28 05:00:23 +01:00
s off
f 5/1/1 1/2/1 2/3/1 6/4/1
f 7/4/2 8/1/2 4/2/2 3/3/2
f 5/4/3 7/1/3 3/2/3 1/3/3
tweak speakers' UV maps a bit
2015-04-26 22:24:05 +02:00
f 1/5/4 3/6/4 4/2/4 2/3/4
add "open front" version of large speaker
2015-03-28 05:00:23 +01:00
f 2/2/5 4/3/5 8/4/5 6/1/5
# Compression Commit This commit performs both lossless and lossy compression on every .obj and .png in homedecor. The .png files were all 100% losslessly compressed using ect.exe and optipng.exe (more details below) at maximum settings. The .obj files were lossy-compressed so that comments were removed, trailing 000's were removed and all numbers rounded to 3 decimal places max. Blender exports at 6 decimal places but for minetest, 3 decimal places is the absolute maximum a person with anything under a 256K screen will ever need. ## Results ``` Original entire modpack size: 6343.5 KB New entire modpack size: 5312.2 KB Total Reduction: 1031.3 KB (16.3% less) ``` Please note that actual media size is likely more like 4,500 KB so media reduction is more around 20-25%. ## Details / What actions were actually performed Used these programs: https://github.com/ExeVirus/Compress-Obj https://sourceforge.net/projects/optipng/ https://github.com/fhanau/Efficient-Compression-Tool Ran this command on every .obj: (fast) ``` luajit.exe compress.lua -f <file> -precision 3 ``` Ran these commands on every .png: (slow) ``` ect.exe -9 -strip --allfilters-b <file> optipng.exe -o7 -strip all -clobber <file> ``` Note that for future compression, I recommend only using optipng.exe instead of both. ECT can get better results but it takes a LOT longer and only ever saves another 1-2% of the file size. Not worth an extra 10-20 seconds per texture file in my opinion. ## Time spent Roughly 2 Hours from start to finish + commit + PR
2021-01-23 13:28:20 +01:00
g 2
add "open front" version of large speaker
2015-03-28 05:00:23 +01:00
s 1
better UV maps for speakers, tweaks to related textures
2015-04-26 21:32:13 +02:00
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# Compression Commit This commit performs both lossless and lossy compression on every .obj and .png in homedecor. The .png files were all 100% losslessly compressed using ect.exe and optipng.exe (more details below) at maximum settings. The .obj files were lossy-compressed so that comments were removed, trailing 000's were removed and all numbers rounded to 3 decimal places max. Blender exports at 6 decimal places but for minetest, 3 decimal places is the absolute maximum a person with anything under a 256K screen will ever need. ## Results ``` Original entire modpack size: 6343.5 KB New entire modpack size: 5312.2 KB Total Reduction: 1031.3 KB (16.3% less) ``` Please note that actual media size is likely more like 4,500 KB so media reduction is more around 20-25%. ## Details / What actions were actually performed Used these programs: https://github.com/ExeVirus/Compress-Obj https://sourceforge.net/projects/optipng/ https://github.com/fhanau/Efficient-Compression-Tool Ran this command on every .obj: (fast) ``` luajit.exe compress.lua -f <file> -precision 3 ``` Ran these commands on every .png: (slow) ``` ect.exe -9 -strip --allfilters-b <file> optipng.exe -o7 -strip all -clobber <file> ``` Note that for future compression, I recommend only using optipng.exe instead of both. ECT can get better results but it takes a LOT longer and only ever saves another 1-2% of the file size. Not worth an extra 10-20 seconds per texture file in my opinion. ## Time spent Roughly 2 Hours from start to finish + commit + PR
2021-01-23 13:28:20 +01:00
g 3
add "open front" version of large speaker
2015-03-28 05:00:23 +01:00
s off
better UV maps for speakers, tweaks to related textures
2015-04-26 21:32:13 +02:00
f 14/104/78 15/105/78 6/3/78
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f 20/113/78 21/116/78 5/2/78
f 21/116/78 22/112/78 7/6/78
f 7/6/78 5/2/78 21/116/78
f 17/117/78 18/115/78 5/2/78
f 16/106/78 17/117/78 6/3/78
f 5/2/78 6/3/78 17/117/78
f 14/104/78 6/3/78 13/118/78
f 12/107/78 13/118/78 8/5/78
f 8/5/78 13/118/78 6/3/78
f 9/119/78 10/109/78 8/5/78
f 8/5/78 7/6/78 9/119/78
f 9/119/78 7/6/78 24/110/78
# Compression Commit This commit performs both lossless and lossy compression on every .obj and .png in homedecor. The .png files were all 100% losslessly compressed using ect.exe and optipng.exe (more details below) at maximum settings. The .obj files were lossy-compressed so that comments were removed, trailing 000's were removed and all numbers rounded to 3 decimal places max. Blender exports at 6 decimal places but for minetest, 3 decimal places is the absolute maximum a person with anything under a 256K screen will ever need. ## Results ``` Original entire modpack size: 6343.5 KB New entire modpack size: 5312.2 KB Total Reduction: 1031.3 KB (16.3% less) ``` Please note that actual media size is likely more like 4,500 KB so media reduction is more around 20-25%. ## Details / What actions were actually performed Used these programs: https://github.com/ExeVirus/Compress-Obj https://sourceforge.net/projects/optipng/ https://github.com/fhanau/Efficient-Compression-Tool Ran this command on every .obj: (fast) ``` luajit.exe compress.lua -f <file> -precision 3 ``` Ran these commands on every .png: (slow) ``` ect.exe -9 -strip --allfilters-b <file> optipng.exe -o7 -strip all -clobber <file> ``` Note that for future compression, I recommend only using optipng.exe instead of both. ECT can get better results but it takes a LOT longer and only ever saves another 1-2% of the file size. Not worth an extra 10-20 seconds per texture file in my opinion. ## Time spent Roughly 2 Hours from start to finish + commit + PR
2021-01-23 13:28:20 +01:00
g 4
better UV maps for speakers, tweaks to related textures
2015-04-26 21:32:13 +02:00
f 11/120/78 27/121/78 28/122/78 12/123/78
f 22/124/78 38/125/78 39/126/78 23/127/78
f 9/128/78 25/129/78 26/130/78 10/131/78
f 20/132/78 36/133/78 37/134/78 21/135/78
f 18/136/78 34/137/78 35/138/78 19/139/78
f 17/140/78 16/141/78 32/142/78 33/143/78
f 15/144/78 14/145/78 30/146/78 31/147/78
f 12/123/78 28/122/78 29/148/78 13/149/78
f 23/127/78 39/126/78 40/150/78 24/151/78
f 10/131/78 26/130/78 27/121/78 11/120/78
f 21/135/78 37/134/78 38/125/78 22/124/78
f 19/139/78 35/138/78 36/133/78 20/132/78
f 17/140/78 33/143/78 34/137/78 18/136/78
f 16/141/78 15/144/78 31/147/78 32/142/78
f 14/145/78 13/149/78 29/148/78 30/146/78
f 24/151/78 40/150/78 25/129/78 9/128/78