AMS (File Format) - Revision history

Atlas: /* Header */

2026-04-11T13:14:03Z

Header

← Older revision		Revision as of 13:14, 11 April 2026
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	\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 3, 4, 5, 6, 7 and 8.}}		\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 3, 4, 5, 6, 7 and 8.}}
	\|-		\|-
	\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. ~~Posibly~~ bit flags, but files either use 0x80 or 0x81.}}		\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Possibly bit flags, but files either use 0x80 or 0x81.}}
	\|-		\|-
	\| 0x06 \|\| Byte \|\| '''Number of materials''' ('''M''').		\| 0x06 \|\| Byte \|\| '''Number of materials''' ('''M''').

2025-08-31T13:13:12Z

Bone Index Palette

← Older revision		Revision as of 13:13, 31 August 2025
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	\| 0x00 \|\| Byte \|\| '''Number of bones'''.		\| 0x00 \|\| Byte \|\| '''Number of bones'''.
	\|-		\|-
	\| 0x01 \|\| Byte['''P''' - 1] \|\| {{Unknown-left\|'''Unknown'''. Index data seems to be compressed/~~midex~~ in some way?}}		\| 0x01 \|\| Byte['''P''' - 1] \|\| {{Unknown-left\|'''Unknown'''. Index data seems to be compressed/mixed in some way?}}
	\|}		\|}

2025-08-31T13:12:43Z

← Older revision		Revision as of 13:12, 31 August 2025
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	Directly after the header there are the Wii Draw Commands.		Directly after the header there are the Wii Draw Commands.

	=== ~~Unknown Data 2~~ ===		=== Bone Index Palette ===
	After the Draw Data comes ~~an Unknown Data~~ section. ~~It starts with a 2-byte header:~~		After the Draw Data comes a section that contains a (compressed?) palette of bone indices, presumably linking position matrix IDs from the draw commands to multiple bone IDs.

	{\| class="wikitable"		{\| class="wikitable"
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	! Offset !! Type !! Description		! Offset !! Type !! Description
	\|-		\|-
	\| 0x00 \|\| UInt16 \|\| '''Length of the ~~data~~''' in bytes.		\| 0x00 \|\| UInt16 \|\| '''Length of the palette''' in bytes ('''P''').
			\|-
			\| 0x00 \|\| Byte \|\| '''Number of bones'''.
			\|-
			\| 0x01 \|\| Byte['''P''' - 1] \|\| {{Unknown-left\|'''Unknown'''. Index data seems to be compressed/midex in some way?}}
	\|}		\|}

	~~Directly after the header there is the unknown data.~~

	= Tools =		= Tools =

2025-06-25T19:26:53Z

Section 3

← Older revision		Revision as of 19:26, 25 June 2025
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	== Section 3 ==		== Section 3 ==
	This section defines '''B''' ~~0x30~~ bone entries.		This section defines '''B''' bone entries.

	=== Bone ===		=== Bone ===
	{\| class="wikitable"		{\| class="wikitable"
	! Offset !! Type !! Description		! Offset !! Type !! Description
	\|-		\|- bgcolor="#AAFFAA"
			\| colspan="3" align="center" \| '''If [[#Header\|format]] = 7'''
			\|- bgcolor="#DDFFDD"
			\| 0x00 \|\| Char[4] \|\| '''Bone name/ID'''. Hardcoded to be 4 characters long.
			\|- bgcolor="#FFAAAA"
			\| colspan="3" align="center" \| '''Else'''
			\|- bgcolor="#FFDDDD"
	\| 0x00 \|\| float[3] \|\| '''XYZ position'''.		\| 0x00 \|\| float[3] \|\| '''XYZ position'''.
	\|-		\|- bgcolor="#FFDDDD"
	\| 0x0C \|\| Char[4] \|\| '''Bone name'''. Hardcoded to be 4 characters long.		\| 0x0C \|\| Char[4] \|\| '''Bone name/ID'''. Hardcoded to be 4 characters long.
	\|-		\|- bgcolor="#FFDDDD"
	\| 0x10 \|\| float[4] \|\| '''Rotation''', using quaternions.		\| 0x10 \|\| float[4] \|\| '''Rotation''', using quaternions.
	\|-		\|- bgcolor="#FFDDDD"
	\| 0x20 \|\| float[4] \|\| {{Unknown-left\|'''Unknown'''.}}		\| 0x20 \|\| float[4] \|\| {{Unknown-left\|'''Unknown'''.}}
	\|}		\|}

2025-06-25T19:12:46Z

Header

← Older revision		Revision as of 19:12, 25 June 2025
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	\| 0x00 \|\| Char[4] \|\| '''File magic'''. Always ''ALMS'' in ASCII.		\| 0x00 \|\| Char[4] \|\| '''File magic'''. Always ''ALMS'' in ASCII.
	\|-		\|-
	\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 3, 4, 5, 6 and 8.}}		\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 3, 4, 5, 6, 7 and 8.}}
	\|-		\|-
	\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Posibly bit flags, but files either use 0x80 or 0x81.}}		\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Posibly bit flags, but files either use 0x80 or 0x81.}}

2025-06-25T14:00:23Z

Header

← Older revision		Revision as of 14:00, 25 June 2025
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	\| 0x0B \|\| Byte \|\| '''Length of each material section''' in bytes.		\| 0x0B \|\| Byte \|\| '''Length of each material section''' in bytes.
	\|-		\|-
	\| 0x0C \|\| Float[2] \|~~\| {{Unknown-left~~\|'''~~Unknown~~'''. ~~Seems to be some kind of minimum values, perhaps for a 2D bounding box?}}~~		\| 0x0C \|\| Float[3] \|\| '''XYZ position''' of the model (does not apply to bones).
	\|-		\|-
	\| ~~0x14~~ \|\| Float~~[2]~~ \|~~\| {{Unknown-left~~\|'''~~Unknown~~'''. ~~Seems to be some kind of maximum values, perhaps for a 2D bounding box?}}~~		\| 0x18 \|\| Float \|\| '''Scale''' of the model (does not apply to bones).
	\|-		\|-
	\| 0x1C \|\| UInt16 \|\| '''[[#Section 1\|Section 1]] offset'''.		\| 0x1C \|\| UInt16 \|\| '''[[#Section 1\|Section 1]] offset'''.

2025-06-22T10:47:43Z

← Older revision		Revision as of 10:47, 22 June 2025
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	\| 0x00 \|\| Char[4] \|\| '''File magic'''. Always ''ALMS'' in ASCII.		\| 0x00 \|\| Char[4] \|\| '''File magic'''. Always ''ALMS'' in ASCII.
	\|-		\|-
	\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 4, 5, 6 and 8.}}		\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 3, 4, 5, 6 and 8.}}
	\|-		\|-
	\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Posibly bit flags, but files either use 0x80 or 0x81.}}		\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Posibly bit flags, but files either use 0x80 or 0x81.}}

2025-06-22T09:37:23Z

← Older revision		Revision as of 09:37, 22 June 2025
Line 13:		Line 13:
	\| 0x00 \|\| Char[4] \|\| '''File magic'''. Always ''ALMS'' in ASCII.		\| 0x00 \|\| Char[4] \|\| '''File magic'''. Always ''ALMS'' in ASCII.
	\|-		\|-
	\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 5, 6 and 8.}}		\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 4, 5, 6 and 8.}}
	\|-		\|-
	\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Posibly bit flags, but files either use 0x80 or 0x81.}}		\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Posibly bit flags, but files either use 0x80 or 0x81.}}

2025-06-21T12:39:33Z

Header

← Older revision		Revision as of 12:39, 21 June 2025
Line 13:		Line 13:
	\| 0x00 \|\| Char[4] \|\| '''File magic'''. Always ''ALMS'' in ASCII.		\| 0x00 \|\| Char[4] \|\| '''File magic'''. Always ''ALMS'' in ASCII.
	\|-		\|-
	\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 5 and 8.}}		\| 0x04 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Format type or version? Values seen are 2, 5, 6 and 8.}}
	\|-		\|-
	\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Posibly bit flags, but files either use 0x80 or 0x81.}}		\| 0x05 \|\| Byte \|\| {{Unknown-left\|'''Unknown'''. Posibly bit flags, but files either use 0x80 or 0x81.}}

2025-06-20T18:20:11Z

@@ Line 46: / Line 46: @@
 === Material ===
-''TBD''
+{| class="wikitable"
 == Section 2 ==
@@ Line 91: / Line 117: @@
 ! Offset !! Type !! Description
 |-
-| 0x00 || Byte || {{Unknown-left|'''Unknown'''. Seems to be some kind of debugging flag?}}
+| 0x00 || Byte || '''Material ID'''.
 |-
 | 0x01 || Byte || {{Unknown-left|'''Unknown'''.}}