Avatar File

There are currently 3 avatars:

Brian
Chris
Pablo

Avatar files are 3D model files with the rn8 file extension. Model units are in centimeters.

Root Structure

Type	ID	Description
Int32	vertex_count	Divide by 7
vertex_struct[]	vertices
Int32	texture_count	Add 6
C# String[]	textures
Boolean	is_ushort_index_buffer	True if the indices are stored as ushorts
Int32	num_index_buffer
UShort[]	ushort_index_buffer¹
Int32[]	index_buffer²
Int32	num_unknown_structs	Subtract 9
unknown_struct[]	unknown_structs
Int32	num_skeleton_hierarchy
Int32[]	skeleton_hierarchy
Int32	num_bone_indices
bone_index_struct[]	bone_indices
Int32	num_bind_poses
Matrix4x4[]	bind_poses
Int32	num_inverse_bind_poses
Matrix4x4[]	inverse_bind_poses
Int32	num_animations	Seems to always be 16
animation_clip[]	animations

¹: Only if the index buffer is ushort
²: Only if the index buffer is not ushort

Types

vertex_struct

Type	ID	Description
Float	reserved1
Float	position_x	Multiply by 63.7f
Float	normal_y	Divide by -1.732f
Float	position_z	Divide by 16f
Float	tex_coord_x	Divide by 4.8f
Float	normal_x	Divide by 10.962f
Float	reserved2
Float	normal_z	Divide by 11.432f
Float	tex_coord_y	Divide by 9.6f
Float	position_y	Multiply by 6f
UInt8	blend_index_w
Float	blend_weight_z
UInt8	blend_index_x
Float	blend_weight_y
UInt8	blend_index_y
Float	blend_weight_w
UInt8	blend_idex_z
Float	blend_weight_x

unknown_struct

Type	ID	Description
Int32	reserved	This field is unused
Int32	texture_index¹
Int32	num_index_buffer
Int32	start_index_location
Int32	base_vertex_location

¹: _mrao is appended to the texture name

bone_index_struct

Type	ID	Description
C# String	key
Int32	bone_index

animation_clip

Type	ID	Description
C# String	clip_name
Double	duration	Duration in ms
Int32	num_keyframes
animation_keyframe[]	keyframes

animation_keyframe

Type	ID	Description
Int32	bone_index
Double	time
Matrix4x4	transform