HEROLL/art-bible/specs/asset-import-rules.csv

1	asset_type	naming_pattern	source_format	export_format	authoring_size	unity_import	filtering	compression	atlas_or_group	pivot_or_slice	validation
2	WorldCharacter	CHR_{id}_{skin}_{action}_{frame}	Aseprite or PSD	PNG RGBA	96-192px logical height	Sprite Multiple; PPU32; mesh FullRect	Point no mipmaps	ASTC 6x6 Android / ASTC 6x6 iOS	Atlas_CHR_{family}	feet pivot normalized y=0.08	All frames integer aligned; no edge alpha bleed
3	Monster	MON_{biome}_{family}_{variant}_{action}_{frame}	Aseprite or PSD	PNG RGBA	64-144px logical height	Sprite Multiple; PPU32	Point no mipmaps	ASTC 6x6	Atlas_MON_{biome}	feet pivot normalized y=0.08	Silhouette and hostile accent check
4	Boss	BOSS_{id}_{phase}_{action}_{frame}	Aseprite or PSD	PNG RGBA	192x137 minimum logical box	Sprite Multiple; PPU32	Point no mipmaps	ASTC 4x4	Addressables/Boss_{id}	feet pivot shared across every clip	No frame exceeds box without explicit socket update
5	BiomeBack	ENV_{biome}_Back_{index}	PSD layered	PNG RGB	1920x1080 source or 320x180 pixel base	Sprite Single; mipmaps optional	Point when pixel base otherwise Bilinear	ASTC 6x6	Addressables/Biome_{biome}	center pivot	No alpha unless parallax cutout is required
6	BiomeFront	ENV_{biome}_Front_{index}	PSD layered	PNG RGBA	1920x1080 source or 320x180 pixel base	Sprite Single	Point when pixel base	ASTC 6x6	Addressables/Biome_{biome}	bottom center	Playable edge has >=4px value separation
7	Tile	UI_TILE_{type}_{state}	PSD or vector master	PNG RGBA	256x256 source	Sprite Single	Point or Bilinear by family; never mixed in same atlas	ASTC 6x6	Atlas_UI_Tile	center pivot with 4px transparent safe edge	Recognizable at 64x64
8	UI9Slice	UI_PANEL_{family}_{state}	PSD or vector master	PNG RGBA	minimum 96x96 source	Sprite Single	Point or Bilinear by family	ASTC 6x6	Atlas_UI_Core	border >=12px; corners never scaled	Stress test at 50%-250% size
9	Icon	ICON_{domain}_{id}_{state}	PSD or vector master	PNG RGBA	256x256 source	Sprite Single	Bilinear no mipmaps	ASTC 6x6	Atlas_ICON_{domain}	centered optical bounds	Readable at 48x48 and grayscale
10	Portrait	PORT_{character}_{expression}	PSD layered	PNG RGBA	1024x1024 or 1024x768	Sprite Single	Bilinear no mipmaps	ASTC 6x6	Addressables/Portraits	anchor eyes and pointer hand	Face readable at 160px height
11	VFXSheet	VFX_{element}_{shape}_{variant}	Aseprite or EmberGen sheet	PNG RGBA	64-256px cells; power-of-two sheet	Sprite Multiple	Point for pixel VFX; Bilinear for soft masks	ASTC 4x4	Atlas_VFX_{element}	center or impact-origin pivot	Frame count and FPS stored in clip metadata
12	Font	FONT_{family}_{weight}	OTF or TTF	TMP asset	CJK dynamic source + 4096 atlas	TMP Dynamic	Linear	R8 or platform default	Group_Font_{locale}	fallback chain defined	No missing glyphs in zh-Hans zh-Hant en ja ko
13	Animation	ANIM_{assetId}_{action}_{variant}	Unity clip or Aseprite tags	AnimationClip	60Hz timeline	n/a	n/a	n/a	Controller_{assetId}	events are presentation-only	No damage or reward logic depends solely on clip event
14	Material	MAT_{domain}_{blend}_{variant}	ShaderGraph or material	Unity Material	n/a	SRP Batcher compatible	n/a	n/a	Group_Materials	n/a	Keywords <=4 and mobile variant provided