{ "input": { "exeSha256": "af2f5a1227911d8aa06b3908d6bd0211838211cae14ea91099cb57d0df990781", "steamBuild": "23966345", "kfcVersion": "1076226|^/game38/branches/ea_update_08|2026-06-29T10:27:39.052394Z", "kfcSha256": "b0b0ec4c4f970c0b317224b44d330ef7dd41334bf53ee93d3bce4d0180489a42", "provenance": "Prior descriptor/reflection extraction cross-checked with direct current KFC3 content reads; old three raw tile hashes reproduce exactly. Current investigation reads source files only." }, "scope": { "descriptorCount": 135, "typeCounts": { "Solid": 130, "Fog": 5 }, "rawSamples": 1035, "sampleBytes": 19624870, "sampleColumns": 764841, "oldGoldenFixturesMatched": true }, "indexFormat": { "tileHeader": "u8 columns_x, u8 columns_z, then columns_x*columns_z little-endian u24 offsets relative to payload_start=2+3*columns", "offsetOrder": "Nondecreasing in every inspected sample; last column ends at file EOF.", "columnHeader": "u16 LE vertical brick count (Y indices [0,count)); u16 LE control-byte count; control bytes; body bytes", "smallWorldLayerTileSizes": [ 8, 16, 32, 64, 128, 256, 512 ], "smallWorldLayerColumnCounts": [ 1, 2, 4, 8, 16, 32, 64 ], "columnsWidthInLayerSamples": 8, "layerUnitInDescriptorUnits": [ 32, 16, 8, 4, 2, 1, 0.5 ], "edgeFixture": { "type": "Solid/Fog", "layer": 0, "tile": 8, "columnDimensions": [ 8, 8 ], "layerSamples": [ 64, 64 ], "coverageCalculation": "(128+128+64)*32=10240" }, "heightStatistics": { "worldLayerPairs": 945, "pairsMatchingHeightCeiling": 935, "pairsExceedingHeightCeiling": 0, "smallWorldLayerPairs": 931, "smallPairsMatchingHeightCeiling": 931, "importantCaveat": "Earlier statistical hypothesis is now confirmed by column/region consumer code: first u16 is vertical brick-count upper bound; second is control-byte length." }, "brickSampleOrder": "x+8*y+64*z, 512 little-endian u16 samples per 8^3 brick", "columnDecoder": "terraform-codec-reference.mjs: parseVoxelColumn/decodeVoxelColumn" }, "mainWorlds": [ { "type": "Solid", "size": { "x": 10240, "y": 2648, "z": 10240 }, "origin": { "x": 0, "y": 0, "z": 0 }, "materialGuidCount": 198, "defaultTerrainMaterial": 1, "levels": [ { "level": 0, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 3, "y": 3 }, "references": 9, "uniqueContentHashes": 9, "referencedBytesIncludingDuplicateReferences": 549127 }, { "level": 1, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 5, "y": 5 }, "references": 25, "uniqueContentHashes": 25, "referencedBytesIncludingDuplicateReferences": 2407666 }, { "level": 2, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 10, "y": 10 }, "references": 100, "uniqueContentHashes": 100, "referencedBytesIncludingDuplicateReferences": 10525617 }, { "level": 3, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 20, "y": 20 }, "references": 400, "uniqueContentHashes": 400, "referencedBytesIncludingDuplicateReferences": 44401063 }, { "level": 4, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 40, "y": 40 }, "references": 1600, "uniqueContentHashes": 1594, "referencedBytesIncludingDuplicateReferences": 183468605 }, { "level": 5, "tileSize": { "x": 256, "y": 256 }, "tileCount": { "x": 40, "y": 40 }, "references": 1600, "uniqueContentHashes": 1595, "referencedBytesIncludingDuplicateReferences": 740836617 }, { "level": 6, "tileSize": { "x": 256, "y": 256 }, "tileCount": { "x": 80, "y": 80 }, "references": 6400, "uniqueContentHashes": 6365, "referencedBytesIncludingDuplicateReferences": 2957015620 } ] }, { "type": "Fog", "size": { "x": 10240, "y": 1956, "z": 10240 }, "origin": { "x": 0, "y": 0, "z": 0 }, "materialGuidCount": 0, "defaultTerrainMaterial": 0, "levels": [ { "level": 0, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 3, "y": 3 }, "references": 9, "uniqueContentHashes": 9, "referencedBytesIncludingDuplicateReferences": 138427 }, { "level": 1, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 5, "y": 5 }, "references": 25, "uniqueContentHashes": 25, "referencedBytesIncludingDuplicateReferences": 571843 }, { "level": 2, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 10, "y": 10 }, "references": 100, "uniqueContentHashes": 100, "referencedBytesIncludingDuplicateReferences": 2389215 }, { "level": 3, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 20, "y": 20 }, "references": 400, "uniqueContentHashes": 393, "referencedBytesIncludingDuplicateReferences": 10004155 }, { "level": 4, "tileSize": { "x": 128, "y": 128 }, "tileCount": { "x": 40, "y": 40 }, "references": 1600, "uniqueContentHashes": 1465, "referencedBytesIncludingDuplicateReferences": 41559606 }, { "level": 5, "tileSize": { "x": 256, "y": 256 }, "tileCount": { "x": 40, "y": 40 }, "references": 1600, "uniqueContentHashes": 1466, "referencedBytesIncludingDuplicateReferences": 172653812 }, { "level": 6, "tileSize": { "x": 256, "y": 256 }, "tileCount": { "x": 80, "y": 80 }, "references": 6400, "uniqueContentHashes": 5434, "referencedBytesIncludingDuplicateReferences": 703021061 } ] } ], "fixtureTests": { "oldRawFixtures": [ { "oldName": "main-world-level0-tile0.bin", "oldSha256": "0f605f5f32bcf9da6ae92faf11d8f050e15fc1db952e4fd8b68ca4b02fa42942", "newSha256": "0f605f5f32bcf9da6ae92faf11d8f050e15fc1db952e4fd8b68ca4b02fa42942", "match": true }, { "oldName": "main-world-level6-tile0.bin", "oldSha256": "b6f845817d05bc1fc53b96515e5ee2ec374074a0f23c034f6c10ddb734662d3a", "newSha256": "b6f845817d05bc1fc53b96515e5ee2ec374074a0f23c034f6c10ddb734662d3a", "match": true }, { "oldName": "main-fog-level0-tile0.bin", "oldSha256": "74d4c0875c925ee3b232184ae42173433d4a265e046287a8a9641f5d9c7075eb", "newSha256": "74d4c0875c925ee3b232184ae42173433d4a265e046287a8a9641f5d9c7075eb", "match": true } ], "smallColumnExamples": [ { "world": "022bd475-089a-43b8-b49a-2bcf2f0cd84f_75f48072_0.json", "bytes": 18, "sha256": "74879d7320505cb66abfc187b099ac71c4e1229af5f5b2b34299b062440f76fd", "columnHex": "010002001e00f9ffd7ff3f076b" }, { "world": "024150fb-87bd-43be-9304-4955c7cd095c_75f48072_0.json", "bytes": 17, "sha256": "3d984be4f5cfb77ca469a7cce33c6c95013313207d5123c79818fe6e056a5f34", "columnHex": "010002001a00f9ffa7aa2aa8" }, { "world": "03b9d9ad-d704-46b3-ae97-2dc40e1677fd_75f48072_0.json", "bytes": 17, "sha256": "765cba7ebfc7855dcc770b9782f648c5b311cdc283923b3846e5a09b1bd95119", "columnHex": "010002001a00f9ffa7aa2a8f" } ], "emptyColumnHex": "00000000", "smallZeroPayloadColumnHex": "0100010000", "normalizedSmallLevel0GeometryGroups": { "010002001a00f9ffa7aa2a": 66, "010002001e00f9ffd7ff3f07": 59 } }, "cpuDisplacement": { "bytes": 103568, "headerBytes": 1024, "offsetSlots": 256, "nonzeroOffsetSlots": 214, "uniqueRecords": 123, "validRecords": 123, "recordLayout": "float32[3] + u32 width + u32 height + width*height raw bytes; no per-record padding in this blob", "squareRecords": true, "float0TimesWidthWithin1e6Of2": true, "observedWidths": [ 4, 6, 8, 10, 12, 16, 20, 24, 30, 32, 40, 50, 64, 128 ], "exampleRecord": { "offset": 1024, "float3": [ 0.03999999910593033, 0.5, 0.5 ], "width": 50, "height": 50, "size": 2520 }, "unknown": "Mapping from local packed material IDs to global GUID slots, other rendering consumers and runtime equivalence remain unresolved.", "consumer": { "address": "0x140e87e50", "slot": "2*materialId + (normal.y < approximately 0.707 ? 1 : 0)", "condition": "normal.y > approximately -0.707, slot < 256, nonzero offset", "parameters": [ "UV frequency", "displacement amplitude", "sample bias" ], "formula": "(nearestRepeatSampleByte/255 - bias) * amplitude; position += displacement * normal", "scope": "Collision vertex consumer; not all rendering paths" } }, "voxelHashes": [ { "type": "Solid", "bytes": 6553600, "wordCount32": 1638400, "uniqueU32": 1513667, "firstU32": 714015869, "wordCountIsSquare": 1280, "candidateGridRelationship": "1280^2 u32 = (world_size_x/8) * (world_size_z/8) u32; shape and ordering not verified" }, { "type": "Fog", "bytes": 6553600, "wordCount32": 1638400, "uniqueU32": 1046307, "firstU32": 523818181, "wordCountIsSquare": 1280, "candidateGridRelationship": "1280^2 u32 = (world_size_x/8) * (world_size_z/8) u32; shape and ordering not verified" } ], "limitations": [ "No game runtime observations or editing experiments.", "Seven-layer selection and cross-LOD stitching remain unresolved; sample spacing uses descriptor units.", "Source local material IDs are not yet mapped to all global GUID slots.", "Resource 8^3 brick, GPU brick declarations and CPU mesh contexts are different layouts; do not equate them." ], "codecValidation": { "tiles": 149, "columns": 6853, "logicalBricks": 575330, "uniformBricks": 551522, "compressedBrickReferences": 23808, "compressedBytes": 1181683, "uniqueCompressedPayloadsDecoded": 7734, "distinctDecodeVoxelSamples": 3959808, "logicalVoxelSamples": 294568960, "logicalDecodedBytes": 589137920, "report": "voxel-codec-validation.json", "failures": 0 } }