ANIM (File Format) - Revision history

Aruki at 00:50, 6 May 2016

2016-05-06T00:50:14Z

Jackoalan: Restored categories

2015-10-04T21:07:41Z

Restored categories

Jackoalan: Made into hub article

2015-10-04T21:03:44Z

Made into hub article

Show changes

Antidote at 22:37, 10 August 2015

2015-08-10T22:37:20Z

Antidote at 22:36, 10 August 2015

2015-08-10T22:36:42Z

Antidote at 22:34, 10 August 2015

2015-08-10T22:34:50Z

Jackoalan: /* Key Values */

2015-03-25T23:01:38Z

‎Key Values

Jackoalan: /* Rotation Vector Bitstream Format */

2015-03-25T22:01:28Z

‎Rotation Vector Bitstream Format

Jackoalan: /* Header2 */

2015-02-23T10:29:26Z

‎Header2

Jackoalan at 08:45, 23 February 2015

2015-02-23T08:45:39Z

@@ Line 14: / Line 14: @@
 Each game has deviations in the format, but the principle of operation remains the same for all of them:
-* [[ANIM (Metroid Prime)]]
+* [[ANIM (Metroid Prime)]] (used in Metroid Prime 1 and 2)
-* [[ANIM (Metroid Prime 2)]]
 * [[ANIM (Metroid Prime 3)]]
 * [[ANIM (Donkey Kong Country Returns)]]

@@ Line 1: / Line 1: @@
-The '''ANIM''' format is used to represent [[wikipedia:Key frame|animation keys]]
+The '''ANIM''' format is used to represent discrete [[wikipedia:Key frame|animation keys]]
 bound to a skeletal rig.
@@ Line 17: / Line 17: @@
 * [[ANIM (Metroid Prime 2)]]
 * [[ANIM (Metroid Prime 3)]]

@@ Line 129: / Line 129: @@
 |-
 |0x10
 |long
 |bone_entry_count

@@ Line 113: / Line 113: @@
 |4
 |long
-|unknown
+|unknown1
 |-
 |0x8
@@ Line 124: / Line 125: @@
 |4
 |long
-|unknown
+|unknown2
 |-
 |0x10
 |bone_entry_count
 |Count of bone-channels in animation
 |-
 |0x14
 |long
-|unknown
+|unknown3
 |-
 |0x18

@@ Line 111: / Line 111: @@
 |-
 |0x4
 |4
 |float
@@ Line 116: / Line 121: @@
 |Time in seconds between keys of each bone channel (reciprocal of frame-rate)
 |-
-|0x8
+|0xC
 |4
 |long
 |bone_entry_count
 |Count of bone-channels in animation
 |-
-|0xC
+|0x14
 |4
 |long

@@ Line 147: / Line 147: @@
 Once resolved, rotation components are divided by ''rotation_divisor'', resulting in an axis-angle
 [[wikipedia:Axis–angle_representation#Rotation_vector|rotation vector]]. This rotation vector is converted
-to quaternion imaginary components with the W component derived via normalization and a ''sign-bit''
+to quaternion imaginary components with the W component derived via normalized-difference and a ''sign-bit''
 packed into the bitstream:

@@ Line 135: / Line 135: @@
 [[wikipedia:Delta encoding|delta encoded]] and [[wikipedia:Quantization (signal processing)|quantized]]
 to make for a very compact, compressed animation. The data is processed sequentially to reconstruct the
-uncompressed bone channel data.
+uncompressed bone channel data as quaternions.
 In addition to the bitstream quantization, the format includes a bitmap specifying which frames of the animation have
@@ Line 146: / Line 146: @@
 Once resolved, rotation components are divided by ''rotation_divisor'', resulting in an axis-angle
-[[wikipedia:Axis–angle_representation#Rotation_vector|rotation vector]]. The magnitude of this vector
+[[wikipedia:Axis–angle_representation#Rotation_vector|rotation vector]]. This rotation vector is converted
-is the ''angle'' part and is multiplied by &pi; and combined with the ''angle sign-bit'' to get the rotation in radians.
+to quaternion imaginary components with the W component derived via normalization and a ''sign-bit''
 Translation components are multiplied by ''translation_multiplier'', yielding world units.
@@ Line 189: / Line 199: @@
 |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.
-Each bone-channel key-set starts with a single bit providing the ''angle 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).
 The key integers are signed using [[wikipedia:Two's complement|Two's complement]] representation.

@@ Line 231: / Line 231: @@
 |float
 |interval
-|Time in seconds between keys of each bone channel (reciprocal of frame-rate, typically 30-fps)
+|Time in seconds between frames (reciprocal of frame-rate, typically 30-fps)
 |-
 |0x14

← Older revision		Revision as of 08:45, 23 February 2015
Line 1:		Line 1:
−	The '''ANIM format''' is used in conjunction with [[CINF (File Format)\|CINF]] ~~and~~ [[CSKR (File Format)\|CSKR]]	+	The '''ANIM format''' is used in conjunction with [[CINF (File Format)\|CINF]] + [[CSKR (File Format)\|CSKR]]
	rigging to animate [[CMDL (File Format)\|CMDL meshes]].		rigging to animate [[CMDL (File Format)\|CMDL meshes]].