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Game data

Blender block and SDNA index

Inspect uncompressed .blend block offsets, payload sizes and stored structure types.

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Your result

Example result

How it works

Read legacy format-0 headers or current format-1 large block headers. Walk complete block boundaries to ENDB and decode the DNA1 name/type/structure table when present.

The synthetic format-1 file has GLOB, DNA1 and ENDB blocks. Its DNA1 schema names one four-byte Demo structure.

Limits

Up to 1 MB, 10000 blocks and 50000 entries per DNA table. Both legacy byte orders and pointer widths are recognized; format 1 is little-endian/64-bit. gzip/zstd are rejected. This is a byte/schema index, not a Blender scene loader, executable script reader or full file-validity check.