MM1 Art and Graphics

MM1 Art and Graphics

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MM1 DOS graphics are not the same format as MM2 Amiga .32 / .anm planar chunks. What we have decoded or exported in this repo is listed below.

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Decode status

Asset	File	Status	Notes
Horizon WALLPIX	WALLPIX.DTA	Partial	Entries 7–14 = overland biomes; lagdotcom PNG exports
Indoor wall sets	WALLPIX.DTA	Partial	wall01.png…wall14.png composites (496×128, 12 slices each)
Floor / object pix	FLOORPIX.DTA, OBJPIX.DTA	Not decoded	ScummVM loaders only
Monster portraits	MONPIX.DTA	Not decoded	Combat UI sprites
Character faces	in MM.EXE / data	Not decoded	—
Walker rendering	—	MM2 stand-ins	Indoor walls from MM2 town/cave/castle; outdoor horizons from MM2 desert/ocean/etc.

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WALLPIX.DTA layout (lagdotcom)

Each wall set is one 496×128 indexed-color composite. The 3D engine slices it into 12 sub-images for the frustum (tools/mm1_wallpix.py WALLSLICES):

Slice	Size	Role
left1…left4	32×128 … 16×32	Left wall column, near → far
right1…right4	mirror of left	Right wall column
mid2…mid5	176×96 … 16×16	Front wall column

Slice order matches MM2’s collectBlits depth table (SLICE_BY_FRAME in mm1_wallpix.py).

Export path (GOG): Might and Magic 1\re\lagdotcom\exported\wallNN.png
Regenerate from game files with lagdotcom’s RE tools (not shipped in this repo).

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Overland horizon sheets (entries 7–14)

Outdoor maps load three WALLPIX entries (near / mid / far lanes). Per-sector assignments are in 24-mm1-outdoor-wallpix-by-sector.

Entry	PNG	Biome label
7	wall07.png	trees
8	wall08.png	mountains
9	wall09.png	trees
10	wall10.png	lava
11	wall11.png	swamp
12	wall12.png	water
13	wall13.png	thick forest
14	wall14.png	mountains

Lane ids come from each area*.OVR data segment (ScummVM Maps::loadTile / TILE_AREA2 table) — see tools/mm1_wallpix.py outdoor_wall_lanes().

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Indoor wall set selection

MM1_COLOR_OFFSET (from ScummVM maps.cpp) plus slug heuristics pick which wallNN.png a dungeon/town uses (wall_set_for_screen()):

Screen kind	Typical wall set
Caves, upper dragon	wall01
Towns (default)	wall02
Overland A–E	wall05–wall09 (by sector letter)
Endgame fights	wall10
Doom / demon / astral / dragon	wall13
Plane of Power	wall14

The HTML walker does not render these PNGs yet — it uses MM2 .32 sheets for a consistent preview pipeline.

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COLOR_OFFSET per screen

55-byte table (one byte per MAZEDATA screen) toggles palette variant for wall sets — MM1_COLOR_OFFSET in tools/mm1_wallpix.py (from ScummVM COLOR_OFFSET[mapIndex]).

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Wiki gallery

When lagdotcom exports are present locally, run:

python wiki/scripts/export-mm1-gallery.py

This copies wall07.png…wall14.png (and any other wall*.png found) into the VitePress gallery at /docs/gallery/mm1-walls. Without GOG assets the page still documents the layout above.

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See also

• 50-mm1-overview — MM1 hub
• 22-mm1-mazedata-format — maze geometry
• 23-mm1-to-mm2-outdoor — how WALLPIX biomes drive the outdoor walker
• 06-gfx-loading — MM2 .32 format (walker stand-ins)

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See also

Page	Why
MM1 Outdoor WALLPIX	Biome sheet table
GFX Loading	MM2 .32 walker stand-ins
MM1 Map Walker	Preview pipeline