GIDynResource storage

GIDynResource (0xBAE98B30) belongs to a World and a cell. GridCellDataBlocks list one per USNAT ShortRange finest cell in the checked 16,384-cell population. The one-volume, one-box body profile is validated on 418 offline bodies; its four encoded streams are distinct from render geometry. Observed

GIDynResource one-volume prefix118 bytesRR96% known

Little-endian. Offsets are relative to this structure.

ProvenObservedSourcedInferredUnknownNot described

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0x0

ManagedObject byteu8

World ClassIDu64

cell idu32

volume countu32 = 1

0x10

… volume count

GIDynVolumeDataobject header

GIDynVolumeDescobject header

0x20

… GIDynVolumeDesc

PositionOffsetf32[3]

0x30

… PositionOffset

sample count Su32

probe count Pu32

IsIndooru8

subvolume countu32 = 1

0x40

… subvolume count

subvolumeobject header

voxel boxobject header

0x50

… voxel box

voxel minimum and maximumi32[6]

0x60

… voxel minimum and maximum

0x70

… voxel minimum and maximum

unknown subvolume wordu32

Offset	Size	Type	Field	Confidence	Notes
0x0	1	u8	ManagedObject byte	Unknown	01.
0x1	8	u64	World ClassID	Observed
0x9	4	u32	cell id	Observed
0xD	4	u32 = 1	volume count	Observed
0x11	12	object header	GIDynVolumeData	Observed	Type 0x684A17AD.
0x1D	12	object header	GIDynVolumeDesc	Observed	Type 0xCE0C489A.
0x29	12	f32[3]	PositionOffset	Observed
0x35	4	u32	sample count S	Observed
0x39	4	u32	probe count P	Observed
0x3D	1	u8	IsIndoor	Observed
0x3E	4	u32 = 1	subvolume count	Observed
0x42	12	object header	subvolume	Observed	Type 0xACC1B118.
0x4E	12	object header	voxel box	Observed	Type 0xE96BB4A2.
0x5A	24	i32[6]	voxel minimum and maximum	Observed
0x72	4	u32	unknown subvolume word	Unknown	Stored bytes; meaning is not established.

Four buffers follow, each u32 byte length + stored bytes, then three u32 decoded-byte lengths, with no trailing bytes in the checked profile. Observed

Stream	Storage and validated length	Confidence
V1	u16 RLE; escape 0xFFFE, count, value; expands to 5S words	Observed
V2	Byte RLE; escape 0xFE, count, value; expands to footer’s second size	Observed
V3	u16 RLE voxel-to-probe grid; 0xFFFF none, low 15 bits probe index; twice voxel count bytes	Observed
V4	P records of four f16 lanes, xyz offsets and zero fourth lane	Observed

Probe positions equal PositionOffset plus V4’s xyz offsets in metres. Footer sizes are 10S, V2’s decoded byte count and twice the voxel-box volume. The observed grid’s horizontal extent is 24 × 24, with varying depth. Observed

What do the encoded sample and visibility values mean?

Probe positions and framing do not establish irradiance, all flag bits, sample origin or construction of GPU lighting textures. Multi-volume profiles are outside the checked one-volume scope. Unknown

The lighting interpretation is distinct from these volume and stream storage rules.