EA-Match Two-Storey Walls
Dentil_stairs.jpg - width=1496 height=1065
Dentil lower and upper 2-storey walls with 1-storey EA original
Set1.jpg - width=1276 height=967
Set 1: the ‘classical’ mouldings
E&D_stairs.jpg - width=1763 height=1015
Egg-and-dart lower and upper 2-storey walls with 1-storey EA original.
Twist_hallway.jpg - width=1790 height=919
“The grander sort of entrance hall.” Twist motif lower and upper 2-storey walls with 1-storey EA original.
Dentil_tile.jpg - width=1697 height=793
Tiling/CASTability and preset: hzl_Wall_Dentil_Lower and hzl_Wall_Dentil_Upper
E&D_tile.jpg - width=1916 height=923
Tiling/CASTability and preset: hzl_Wall_EggDart_Lower and hzl_Wall_EggDart_Upper
Twist_tile.jpg - width=1744 height=871
Tiling/CASTability and preset: hzl_Wall_TwistMotif_Lower and hzl_Wall_TwistMotif_Upper
Set2.jpg - width=1418 height=1031
Set 2: mostly dadoes (walls with ornate crown moulding)
Cottage_stairs.jpg - width=1580 height=1050
2-storey walls: lower wall with tall beadboard dado, upper wall with ornate crown moulding and bordered frieze. 1 storey walls: EA wall with tall beadboard dado downstairs and my wall with tall plain dado upstairs.
Smallboard_cornice_tile.jpg - width=1918 height=972
Tiling/CASTability and preset: hzl_Wall_Lower_Beadboard_Short. hzl_Wall_Upper_OrnateCrown recoloured to match.
Tallboard_frieze_tile.jpg - width=1898 height=910
Tiling/CASTability and preset: hzl_Wall_Lower_Beadboard_Tall and hzl_Wall_Upper_OrnateCrown_Frieze.
Baseboard_frieze_tile.jpg - width=1802 height=851
Tiling/CASTability and preset: hzl_Wall_Lower_Baseboard_Bead. hzl_Wall_Upper_OrnateCrown_Frieze recoloured to match.
Smallplain_cornice_tile.jpg - width=1792 height=828
Tiling/CASTability and preset: hzl_Wall_Lower_PlainDado_Short and hzl_Wall_Upper_OrnateCrown.
Tallplain_cornice_tile.jpg - width=1853 height=848
Tiling/CASTability and preset: hzl_Wall_Lower_PlainDado_Tall and hzl_Wall_Upper_OrnateCrown.
Set3.jpg - width=1325 height=1022
Set 3: the plainer ones (walls with plain baseboard)
Hall_landing.jpg - width=1746 height=1078
EA wall with trimmed border and dado, my upper wall with trimmed border and matching lower wall with dado.
Exterior.jpg - width=1855 height=1080
My lower wall with plain baseboard (exterior version); foundation walls with Buckley’s fix used for upper walls and gable ends.
Plain_tile.jpg - width=1881 height=919
Tiling/CASTability and preset: hzl_Wall_Upper_Crown_Plain and hzl_Wall_Lower_Baseboard_Plain
Ext_tile.jpg - width=1619 height=765
Tiling/CASTability and preset: hzl_Wall_Lower_Baseboard_Plain_Ext. hzl_Wall_Upper_Crown_Plain recoloured to match
Baseboard_crowntrim_tile.jpg - width=1876 height=891
Tiling/CASTability and preset: hzl_Wall_Upper_Crown_Trim and hzl_Wall_Lower_Baseboard_Plain
Dado_border_tile.jpg - width=1875 height=894
Tiling/CASTability and preset: hzl_Wall_Upper_Crown_TrimmedBorder and hzl_Wall_Lower_Dado_TrimmedBorderMatch
Plain_skirting_walls.jpg - width=1750 height=1256
Exterior and interior versions of wall with plain baseboard vs. EA original
Base_wall_expt.jpg - width=2138 height=1123
Experiment using different base walls
Zoom-out.jpg - width=1852 height=1923
Final version of walls at different degrees of zoom-out

The most obvious problem with joining wall (and floor) panels is that the game wraps the very edge of the pattern across to the opposite side. This means that a line of skirting/cornice colour appears across the join between the upper and lower walls. I’d addressed this very early on by editing the mask, adding a narrow border of the main wall colour (one pixel wide) to the top/bottom of the wall. This was completely hidden in-game and barely visible when building. Unfortunately, while it helped, it didn’t make the walls seamless.
A very, very long time later, I realised that this was because you rarely see the original wall in-game: it’s mostly mipmaps. And that single line of main-colour pixels blurred into the skirting/cornice, even in the first mipmap. After coming across a discussion of a similar problem in Sims 4, I tried playing around with different mipmap generation algorithms and found that ‘nearest’ gave a much crisper result than GIMP’s default (for masks, anyway. I later discovered that it was rubbish for the other textures and the default was actually the best option.) Using ‘nearest’ preserved the line of pixels at the bottom of the wall down to the fourth or fifth mipmap. Unfortunately, it was a different story at the top, where they disappeared immediately. Then I worked out that I could edit the mipmaps in GIMP and solve that problem. The seam was a lot smaller after this but still not invisible.
The recent test walls had been based on a barn wall, because I’d found that houses using barn-based walls would export and re-import without a problem. Was the remaining seam because that wall wasn’t intended to tile vertically? So I found two other walls – the foundation wall and the sci-fi wall with vent – that would also export and import but didn’t have such an obvious edge at the top and bottom. (Incidentally, I think the secret to well-behaved walls may be having only one preset.) I built upper and lower dentil-moulding walls based on all three and tried them out in-game. They developed identical seams on zooming out, suggesting that the base wall is unlikely to affect the final result.
Next, I tried changing the width of the main-colour band at the top or bottom of the wall and got progressively better results with 1, 2 or 4 pixels. Increasing to 8 pixels wide was only slightly better than 4. This couldn’t be applied to a lower wall in-game, since even a second row of pixels was visible at the bottom of the wall. For upper walls, even an 8-pixel-wide band was hidden behind the ceiling when viewing in tab mode, although it looked a bit silly when building. I eventually settled on four pixels at the top and one at the bottom as the best compromise.
While playing around with some other walls, I noticed that the ones with dentil moulding had a more visible seam than flat walls with contrast bands at the top and bottom, even though the dentil mask mipmaps were much better. Did the other textures also influence the result? A few quick experiments showed that they did, so I also applied main-colour bands to the normal, multiplier and specular maps – and found I could get away with 4-px-wide bands at both top and bottom, because they were far less obvious than the mask, even when the modified wall was placed right next to the EA original. Editing mipmaps where necessary improved things still further and I finally felt I had something that was good enough to post.
A small seam still appears when zooming out a long way but this would only be visible in very large rooms. It’s more apparent if there’s a strong contrast between the main wall colour and trim, with plain colours and some small contrasty textures (e.g. rough concrete) being far less forgiving than patterns. The viewing angle and lighting also have an effect.
The project had started out as a set of upper and lower walls to make two-storey versions of the base-game walls with dentil, egg-and-dart and twisted motif crown mouldings, for use in houses with the grander sort of entrance hall, but now it started to grow. A two-storey version of this wall might be useful. And what about that one? So now there are three sets, with a total of 19 walls. All of them can be found in the catalogue under Wall Sets.
Set 1: the ‘classical’ mouldings
The original set:
- hzl_Wall_Dentil_Upper
- hzl_Wall_Dentil_Lower
- hzl_Wall_EggDart_Upper
- hzl_Wall_EggDart_Lower
- hzl_Wall_TwistMotif_Upper
- hzl_Wall_TwistMotif_Lower
Set 2: mostly dadoes
This, on the other hand, was deliberately made as a mix-and-match set, based on the base-game walls with ornate crown moulding. There are two upper and five lower walls, all priced at §6.
- hzl_Wall_Upper_OrnateCrown
- hzl_Wall_Upper_OrnateCrown_Frieze
- hzl_Wall_Lower_Beadboard_Short
- hzl_Wall_Lower_Beadboard_Tall
- hzl_Wall_Lower_PlainDado_Short
- hzl_Wall_Lower_PlainDado_Tall
- hzl_Wall_Lower_Baseboard_Bead
Set 3: the plainer ones
These are two-storey versions of the base-game walls with a plain baseboard:
- hzl_Wall_Upper_Crown_Plain (price §7, 2 channels)
- hzl_Wall_Upper_Crown_Trim (price §7, 2 channels)
- hzl_Wall_Upper_Crown_TrimmedBorder (price §7, 3 channels)
- hzl_Wall_Lower_Dado_TrimmedBorderMatch (price §6, 3 channels)
- hzl_Wall_Lower_Baseboard_Plain (price §5, 2 channels)
- hzl_Wall_Lower_Baseboard_Plain_Ext (price §5, 2 channels)
The upper wall with the trimmed border has had the fixes from my mod applied.
There are, of course, EA walls with just a plain crown moulding or baseboard, so my versions may not be needed, depending on how the walls are being used – the seam between the upper and lower walls may not be obvious in a small hallway.
The upper wall with plain crown moulding, like the EA original, is a lighter colour than the others in the set. I didn’t alter this because the EA wall with plain crown moulding and baseboard matches it exactly. Instead, I adjusted the preset to be slightly darker than the other walls. Similar slight colour changes will be needed if using it in a build with other walls from the set.
The odd one out (with the white-and-grey preset) is another version of the wall with a plain baseboard, with a wider strip of the main wall colour at the bottom. It’s unsuited to internal walls, since part of the strip is visible above the floor, but was created for use on exterior walls, which will generally be seen from a greater distance. When zooming out, it stays seamless for longer than the interior-wall version and there’s only a fine line even with a plain wall and a strongly contrasting baseboard.
Programs used: TSRW, S3PE, S3OC and GIMP.
Thanks to armiel for Builder’s Island, where most of the testing happened.
Filename | Type | Size |
---|---|---|
hzl_walls_2-storey_set1.rar | rar | |
hzl_Wall_Dentil_Lower.package | package | 339306 |
hzl_Wall_Dentil_Upper.package | package | 353077 |
hzl_Wall_EggDart_Lower.package | package | 198108 |
hzl_Wall_EggDart_Upper.package | package | 226304 |
hzl_Wall_TwistMotif_Lower.package | package | 348431 |
hzl_Wall_TwistMotif_Upper.package | package | 357516 |
Filename | Type | Size |
---|---|---|
hzl_walls_2-storey_set2.rar | rar | |
hzl_Wall_Upper_OrnateCrown_Frieze.package | package | 316375 |
hzl_Wall_Lower_Baseboard_Bead.package | package | 318272 |
hzl_Wall_Lower_Beadboard_Short.package | package | 334399 |
hzl_Wall_Lower_Beadboard_Tall.package | package | 314977 |
hzl_Wall_Lower_PlainDado_Short.package | package | 297343 |
hzl_Wall_Lower_PlainDado_Tall.package | package | 272908 |
hzl_Wall_Upper_OrnateCrown.package | package | 337665 |
Filename | Type | Size |
---|---|---|
hzl_walls_2-storey_set3.rar | rar | |
hzl_Wall_Upper_Crown_Plain.package | package | 53071 |
hzl_Wall_Upper_Crown_Trim.package | package | 66642 |
hzl_Wall_Upper_Crown_TrimmedBorder.package | package | 65446 |
hzl_Wall_Lower_Baseboard_Plain.package | package | 284005 |
hzl_Wall_Lower_Baseboard_Plain_Ext.package | package | 274510 |
hzl_Wall_Lower_Dado_TrimmedBorderMatch.package | package | 292630 |
hzl_walls_2-storey_set3.rar
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hzl_walls_2-storey_set2.rar
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hzl_walls_2-storey_set1.rar
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About Me
You are welcome to use my walls in builds uploaded to MTS (and I’d like to see what you do with them) but please link to the original post rather than including them in your own upload.