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ANIM (Metroid Prime) (view source)

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→‎Quaternion Array Format (Uncompressed)
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|-
|-
|0x4
|0x4
|float
|[[Char Anim Time]]
|1
|1
|'''Duration'''
|'''Duration'''
|'''[1/2 in CCharAnimTime]''' Time in seconds that the animation plays for
|Time in seconds that the animation plays for
|{{check}}
|{{check}}
|-
|0x8
|u32
|1
|'''Differential State Enum'''
|'''[2/2 in CCharAnimTime]''' State of ''Duration'' time point for proper integration control <ol start="0"><li>Non Zero</li><li>Zero Increasing</li><li>Zero Steady</li><li>Zero Decreasing</li><li>Infinity</li></ol>
|{{check}}
|{{check}}
|{{check}}
|{{check}}
|-
|-
|0xC
|0xC
|float
|[[Char Anim Time]]
|1
|1
|'''Key Interval'''
|'''Key Interval'''
|'''[1/2 in CCharAnimTime]''' Time in seconds between keys of each bone channel (reciprocal of frame-rate)
|Time in seconds between keys of each bone channel (reciprocal of frame-rate)
|{{check}}
|{{check}}
|-
|0x10
|u32
|1
|'''Differential State Enum'''
|'''[2/2 in CCharAnimTime]''' State of ''Key Interval'' time point for proper integration control
|{{check}}
|{{check}}
|{{check}}
|{{check}}
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== Rotation Vector Bitstream Format (Compressed) ==
== Rotation Vector Bitstream Format (Compressed) ==


The '''Rotation Vector Bitstream Format''' (0x2) is the most widely used animation format in ''Metroid Prime''.
The '''Rotation Vector Bitstream Format''' (0x2) is the most widely used animation format.
The format uses a compressed [[wikipedia:Bitstream|bitstream]] to store keys that have been
The format uses a compressed [[wikipedia:Bitstream|bitstream]] to store keys that have been
[[wikipedia:Delta encoding|delta encoded]] and [[wikipedia:Quantization (signal processing)|quantized]]
[[wikipedia:Delta encoding|delta encoded]] and [[wikipedia:Quantization (signal processing)|quantized]]
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=== Key Values ===
=== Key Values ===
When decoding the animation, each bone's rotation (and possibly translation) values are initialized to the ''Initial *''
When decoding the animation, each bone's attribute values are initialized to the ''Initial *''
values in the ''bone channel descriptors''. For every frame of every bone channel, the key value in the bitstream is ''added''
values in the ''bone channel descriptors''. For every frame of every bone channel, the key value in the bitstream is ''added''
with the previous key value (to resolve the delta encoding).  
with the previous key value (to resolve the delta encoding).  
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</pre>
</pre>


Translation components are multiplied by ''Translation Multiplier'', yielding world units.
Translation components are multiplied by ''Translation Multiplier'', and scale components are multiplied by ''Scale Multiplier''.


=== Layout ===
=== Layout ===


{| class="wikitable"
{| class="wikitable"
!Offset
!Type
!Type
!style="width: 220px;"|Element Count
!style="width: 220px;"|Element Count
!style="width: 240px;"|Name
!style="width: 240px;"|Name
!Notes
!Notes
!MP1
!MP2
|-
|-
|0x4
|u32
|u32
|1
|1
|'''Scratch Size'''
|'''Scratch Size'''
|Amount of memory that the animation system needs to allocate to process animation
|Amount of memory that the animation system needs to allocate to process animation
|{{check}}
|{{check}}
|-
|-
|0x8
|[[EVNT (File Format)|EVNT]]
|[[EVNT (File Format)|EVNT]]
|1
|1
|'''EVNT Ref'''
|'''EVNT Ref'''
|ID for this ANIM's [[EVNT (File Format)|EVNT]] resource, or 0xFFFFFFFF if no events triggered
|ID for this ANIM's [[EVNT (File Format)|EVNT]] resource, or 0xFFFFFFFF if no events triggered
|{{check}}
|{{nocheck}}
|-
|-
|0xC
|u32
|u32
|1
|1
|{{unknown|Unknown 1}}
|{{unknown|Unknown 1}}
|Always 0x1
|Always 0x1
|{{check}}
|{{nocheck}}
|-
|u16
|1
|{{unknown|Unknown 2}}
|
|{{nocheck}}
|{{check}}
|-
|-
|0x10
|float
|float
|1
|1
|'''Duration'''
|'''Duration'''
|Time in seconds that the animation plays for
|Time in seconds that the animation plays for
|{{check}}
|{{check}}
|-
|-
|0x14
|float
|float
|1
|1
|'''Interval'''
|'''Interval'''
|Time in seconds between frames (reciprocal of frame-rate, typically 30-fps)
|Time in seconds between frames (reciprocal of frame-rate, typically 30-fps)
|{{check}}
|{{check}}
|-
|-
|0x18
|u32
|u32
|1
|1
|'''Root Bone ID'''
|'''Root Bone ID'''
|ID of the root bone in this ANIM
|ID of the root bone in this ANIM
|{{check}}
|{{check}}
|-
|-
|0x1C
|u32
|u32
|1
|1
|{{unknown|Unknown 3}}
|'''Looping Flag'''
|Always 0x0
|When non-zero, engine identifies this ANIM as looping
|{{check}}
|{{check}}
|-
|-
|0x20
|u32
|u32
|1
|1
|'''Rotation Divisor'''
|'''Rotation Divisor'''
|Rotation vectors are divided by this value before being applied
|Rotation vectors are divided by this value before being applied
|{{check}}
|{{check}}
|-
|-
|0x20
|float
|float
|1
|1
|'''Translation Multiplier'''
|'''Translation Multiplier'''
|Translation vectors are multiplied by this value before being applied
|Translation vectors are multiplied by this value before being applied
|{{check}}
|{{check}}
|-
|float
|1
|'''Scale Multiplier'''
|Scale vectors are multiplied by this value before being applied
|{{nocheck}}
|{{check}}
|-
|-
|0x24
|u32
|u32
|1
|1
|'''Bone Channel Count'''
|'''Bone Channel Count'''
|Count of bone channels present in ANIM
|Count of bone channels present in ANIM
|{{check}}
|{{check}}
|-
|-
|0x28
|4
|u32
|u32
|1
|{{unknown|Unknown 4}}
|{{unknown|Unknown 4}}
|Always 0x1
|Always 0x1
|{{check}}
|{{check}}
|-
|-
|0x2C
|u32
|u32
|1
|1
|'''Key Bitmap Length'''
|'''Key Bitmap Length'''
|Number of bits in ''Key Bitmap''
|Number of bits in ''Key Bitmap''
|{{check}}
|{{check}}
|-
|-
|0x30
|u32
|u32
|round_up(''Key Bitmap Length'' / 32)
|round_up(''Key Bitmap Length'' / 32)
|'''Key Bitmap'''
|'''Key Bitmap'''
|Word-packed bitmap. Each word is read from least-significant to most-significant bit. A set bit indicates the frame at the bit's position has keys for each bone channel. If the bit is unset, the keys must be generated via interpolation.
|Word-packed bitmap. Each word is read from least-significant to most-significant bit. A set bit indicates the frame at the bit's position has keys for each bone channel. If the bit is unset, the keys must be generated via interpolation.
|{{check}}
|{{check}}
|-
|-
|{{unknown|}}
|u32
|u32
|1
|1
|'''Bone Channel Count'''
|'''Bone Channel Count'''
|Count of animated bone channels (matches the previous bone channel count)
|Count of animated bone channels (matches the previous bone channel count)
|{{check}}
|{{nocheck}}
|-
|-
|{{unknown|}}
|u32
|u32
|1
|1
|'''Bone Channel Descriptor Count'''
|'''Bone Channel Descriptor Count'''
|Count of bone channel descriptors in ''Bone Channel Descriptor Table''. Matches the ''Bone Channel Counts''.
|Count of bone channel descriptors in ''Bone Channel Descriptor Table''. Matches the ''Bone Channel Counts''.
|{{check}}
|{{check}}
|-
|-
|{{unknown|}}
|[[#Bone Channel Descriptor|Bone Channel Descriptor]]
|[[#Bone Channel Descriptor|Bone Channel Descriptor]]
|''Bone Channel Descriptor Count''
|''Bone Channel Descriptor Count''
|'''Bone Channel Descriptor Table'''
|'''Bone Channel Descriptor Table'''
|Table describing animated bone channels
|Table describing animated bone channels
|{{check}}
|{{check}}
|-
|-
|{{unknown|}}
|u32
|u32
|<remainder of file>
|<remainder of file>
|'''Key Bitstream'''
|'''Key Bitstream'''
|Word-packed bitstream laid out as described by the descriptor table. The bitstream is unpacked just like ''Key Bitmap'' (least-significant to most-significant).  
|Word-packed bitstream laid out as described by the descriptor table. The bitstream is unpacked just like ''Key Bitmap'' (least-significant to most-significant).  
Key values are tightly-packed, quantized integers whose bit-depth is specified by the ''q_*'' values in the descriptor table.  
Key values are tightly-packed, quantized integers whose bit-depth is specified by the ''* Bits'' values in the descriptor table.  
Each bone-channel key-set starts with a single bit providing the ''W sign-bit'' (1 for negative, 0 for positive).
Each bone-channel key-set starts with a single bit providing the ''W sign-bit'' (1 for negative, 0 for positive).


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|------------|------------|-----|------------|
|------------|------------|-----|------------|
</pre>
</pre>
|{{check}}
|{{check}}
|}
|}


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!Name
!Name
!Notes
!Notes
!MP1
!MP2
|-
|-
|0x0
|0x0
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|'''Bone ID'''
|'''Bone ID'''
|''Bone ID'' in the associated [[CINF (File Format)|CINF]] for this bone channel
|''Bone ID'' in the associated [[CINF (File Format)|CINF]] for this bone channel
|{{check}}
|{{check}}
|-
|-
|0x4
|0x4
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|'''Rotation Key Count'''
|'''Rotation Key Count'''
|Number of rotation keys in the bitstream for this bone channel.
|Number of rotation keys in the bitstream for this bone channel.
'''If this value is 0, the remaining Rotation fields aren't present'''
'''In MP2, if this value is 0, the remaining Rotation fields aren't present'''
|{{check}}
|{{check}}
|-
|-
|0x6
|0x6
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|'''Initial Rotation X'''
|'''Initial Rotation X'''
|Initial X value of bone's rotation vector
|Initial X value of bone's rotation vector
|{{check}}
|{{check}}
|-
|-
|0x8
|0x8
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|'''Rotation Bits X'''
|'''Rotation Bits X'''
|Number of bits allocated to bone's rotation delta X in bitstream
|Number of bits allocated to bone's rotation delta X in bitstream
|{{check}}
|{{check}}
|-
|-
|0x9
|0x9
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|'''Initial Rotation Y'''
|'''Initial Rotation Y'''
|Initial Y value of bone's rotation vector
|Initial Y value of bone's rotation vector
|{{check}}
|{{check}}
|-
|-
|0xB
|0xB
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|'''Rotation Bits Y'''
|'''Rotation Bits Y'''
|Number of bits allocated to bone's rotation delta Y in bitstream
|Number of bits allocated to bone's rotation delta Y in bitstream
|{{check}}
|{{check}}
|-
|-
|0xC
|0xC
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|'''Initial Rotation Z'''
|'''Initial Rotation Z'''
|Initial Z value of bone's rotation vector
|Initial Z value of bone's rotation vector
|{{check}}
|{{check}}
|-
|-
|0xE
|0xE
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|'''Rotation Bits Z'''
|'''Rotation Bits Z'''
|Number of bits allocated to bone's rotation delta Z in bitstream
|Number of bits allocated to bone's rotation delta Z in bitstream
|{{check}}
|{{check}}
|-
|-
|0xF
|0xF
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|If this bone channel has an animated translation, its value will match ''Rotation Key Count''; otherwise the value will be 0.  
|If this bone channel has an animated translation, its value will match ''Rotation Key Count''; otherwise the value will be 0.  
'''If the value is 0, the remaining Translation fields aren't present'''
'''If the value is 0, the remaining Translation fields aren't present'''
|{{check}}
|{{check}}
|-
|-
|0x11
|0x11
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|'''Initial Translation X'''
|'''Initial Translation X'''
|Initial X value of bone's translation vector
|Initial X value of bone's translation vector
|{{check}}
|{{check}}
|-
|-
|0x13
|0x13
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|'''Translation Bits X'''
|'''Translation Bits X'''
|Number of bits allocated to bone's translation delta X in bitstream
|Number of bits allocated to bone's translation delta X in bitstream
|{{check}}
|{{check}}
|-
|-
|0x14
|0x14
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|'''Initial Translation Y'''
|'''Initial Translation Y'''
|Initial Y value of bone's translation vector
|Initial Y value of bone's translation vector
|{{check}}
|{{check}}
|-
|-
|0x16
|0x16
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|'''Translation Bits Y'''
|'''Translation Bits Y'''
|Number of bits allocated to bone's translation delta Y in bitstream
|Number of bits allocated to bone's translation delta Y in bitstream
|{{check}}
|{{check}}
|-
|-
|0x17
|0x17
|s16
|s16
|'''Translation Delta Z'''
|'''Initial Translation Z'''
|Initial Z value of bone's translation vector
|Initial Z value of bone's translation vector
|{{check}}
|{{check}}
|-
|-
|0x19
|0x19
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|'''Translation Bits Z'''
|'''Translation Bits Z'''
|Number of bits allocated to bone's translation delta Z in bitstream
|Number of bits allocated to bone's translation delta Z in bitstream
|{{check}}
|{{check}}
|-
|0x1A
|u16
|'''Scale Key Count'''
|If this bone channel has an animated scale, its value will match ''Scale Key Count''; otherwise the value will be 0.
'''If the value is 0, the remaining Scale fields aren't present'''
|{{nocheck}}
|{{check}}
|-
|0x1C
|s16
|'''Initial Scale X'''
|Initial X value of bone's scale vector
|{{nocheck}}
|{{check}}
|-
|0x1E
|u8
|'''Scale Bits X'''
|Number of bits allocated to bone's scale delta X in bitstream
|{{nocheck}}
|{{check}}
|-
|0x1F
|s16
|'''Initial Scale Y'''
|Initial Y value of bone's scale vector
|{{nocheck}}
|{{check}}
|-
|0x21
|u8
|'''Scale Bits Y'''
|Number of bits allocated to bone's scale delta Y in bitstream
|{{nocheck}}
|{{check}}
|-
|0x22
|s16
|'''Initial Scale Z'''
|Initial Z value of bone's scale vector
|{{nocheck}}
|{{check}}
|-
|0x24
|u8
|'''Scale Bits Z'''
|Number of bits allocated to bone's scale delta Z in bitstream
|{{nocheck}}
|{{check}}
|-
|-
| 0x1A
|0x25
|colspan=3 {{unknown|End of descriptor}}
|colspan=5 {{unknown|End of descriptor}}
|}
|}


[[Category:File Formats]]
[[Category:File Formats]]
[[Category:Metroid Prime]]
[[Category:Metroid Prime]]
[[Category:Metroid Prime 2: Echoes]]
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