homedecor_modpack/homedecor_lighting/textures
ExeVirus f9ca183f2a # 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 07:28:20 -05:00
..
forniture_torch_flame.png # Compression Commit 2021-01-23 07:28:20 -05:00
forniture_torch_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_candle_flame.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_candle_flat.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_candle_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_candle_sides.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_candle_thin_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_candlestick_brass_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_candlestick_wrought_iron_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_ceiling_lamp_glass.png Split the big "homedecor" mod into multiple sub-mods 2019-04-20 17:02:42 -04:00
homedecor_ceiling_lamp_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_ceiling_lantern_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_desk_lamp_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_generic_light_source_off.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_generic_light_source_white.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_generic_light_source_yellow.png rename and move generic light source textures 2019-06-02 02:23:10 -04:00
homedecor_glowlight_base.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_cube_sides_edges.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_cube_sides_glare.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_cube_tb_edges.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_cube_top_glare.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_tb_edges.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_thick_sides_edges.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_thick_sides_glare.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_thin_sides_edges.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_thin_sides_glare.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_glowlight_top_glare.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_ground_lantern_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_hanging_lantern_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_lattice_lantern_large_light.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_lattice_lantern_large_overlay.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_lattice_lantern_small_sides_light.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_lattice_lantern_small_sides_overlay.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_lattice_lantern_small_tb_light.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_lattice_lantern_small_tb_overlay.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_oil_lamp_glass.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_oil_lamp_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_oil_lamp_tabletop_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_oil_lamp_tabletop.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_oil_lamp_wick.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_plasma_ball_glass.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_plasma_ball_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_plasma_ball_streamers.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_plasma_lamp_off.png Allow most light sources to be toggled on/off 2019-05-25 19:35:14 -04:00
homedecor_plasma_storm.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_rope_light_on_ceiling.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_rope_light_on_floor.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_standing_lamp_foot_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_standing_lamp_top_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_table_lamp_foot_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_table_lamp_top_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_wall_lamp_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_wall_sconce_back.png # Compression Commit 2021-01-23 07:28:20 -05:00
homedecor_wall_sconce_inv.png # Compression Commit 2021-01-23 07:28:20 -05:00