tinyxpd/VALIDATION_REPORT.txt at master · ZachGray/tinyxpd · GitHub

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=================================================================
XPD READER VALIDATION REPORT
=================================================================

Test Date: 2026-01-28
Tool: xpd_reader_detailed.exe

=================================================================
FILE 1: box.xpd
=================================================================
Input:  29K
Output: 351K (box.json)

Header:
  - fileVersion: 0
  - primType: Spline
  - primVersion: 3
  - numCVs: 5
  - coordSpace: Object
  - numFaces: 6
  - numBlocks: 1
  - primSize: 51 (FULL FORMAT)

Block: "BakedGroom"

Keys:
  - "vertex point xgClumpingGuide"
  - "vertex float xgClumpingWeight"
  - "box"

Primitives:
  Face 0: 24 primitives
  Face 1: 25 primitives
  Face 2: 25 primitives
  Face 3: 25 primitives
  Face 4: 24 primitives
  Face 5: 21 primitives
  Total: 144 primitives

Data Fields Parsed (51 floats):
  ✓ primitiveId
  ✓ surfaceUV [u, v]
  ✓ cvs [5] with positions [x, y, z]
  ✓ guideId, guideWeight, guideType
  ✓ guideDirection [x, y, z]
  ✓ guidePrimRef
  ✓ guideUV [u, v]
  ✓ surfaceNormal [x, y, z]
  ✓ cvParameters [5] with t-values
  ✓ widthScale (base, tip, param1, param2)
  ✓ additionalAttributes [2 floats]

Status: ✅ PASS - All fields parsed correctly

=================================================================
FILE 2: samples/sample.xpd
=================================================================
Output: 225K (samples/sample.json)

Header:
  - fileVersion: 0
  - primType: Spline
  - primVersion: 3
  - numCVs: 5
  - coordSpace: Object
  - numFaces: 444
  - numBlocks: 1
  - primSize: 25 (BASIC FORMAT)

Block: "BakedGroom"

Keys: (none)

Primitives:
  444 faces (sparse - most have 0 primitives)
  Total: 126 primitives scattered across mesh

Data Fields Parsed (25 floats):
  ✓ primitiveId
  ✓ surfaceUV [u, v]
  ✓ cvs [5] with positions [x, y, z]
  ✓ guideId, guideWeight, guideType
  ✓ guideDirection [x, y, z]
  ✓ guidePrimRef

Status: ✅ PASS - Basic format handled correctly

=================================================================
FILE 3: samples/spline_1_taper_1.xpd
=================================================================
Output: 4.1K (samples/spline_1_taper_1.json)

Header:
  - fileVersion: 0
  - primType: Spline
  - primVersion: 3
  - numCVs: 5
  - coordSpace: Object
  - numFaces: 13
  - numBlocks: 1
  - primSize: 25 (BASIC FORMAT)

Block: "BakedGroom"

Keys: (none)

Primitives:
  Face 12: 1 primitive
  All other faces: 0 primitives
  Total: 1 primitive

Data Fields Parsed (25 floats):
  ✓ primitiveId: 0
  ✓ surfaceUV: [0.347729, 0.430220]
  ✓ cvs [5] with positions
  ✓ guideId: 1, guideWeight: 0.1, guideType: 0
  ✓ guideDirection: [0.0, 1.0, 0.0]
  ✓ guidePrimRef: 0

Status: ✅ PASS - Minimal data case handled correctly

=================================================================
COMPATIBILITY ANALYSIS
=================================================================

Format Variations Tested:
  ✓ primSize 51 (full grooming data)
  ✓ primSize 25 (basic spline data)
  ✓ Sparse data (many faces with 0 primitives)
  ✓ Dense data (all faces with primitives)
  ✓ Small meshes (6 faces)
  ✓ Large meshes (444 faces)
  ✓ With keys (box.xpd)
  ✓ Without keys (sample files)

Parser Features Validated:
  ✓ Conditional field parsing based on primSize
  ✓ Handles missing/optional fields gracefully
  ✓ Correct JSON formatting for all cases
  ✓ Progress reporting during processing
  ✓ Automatic output filename generation
  ✓ No crashes or errors on any file

=================================================================
CONCLUSION
=================================================================

✅ ALL TESTS PASSED

The xpd_reader_detailed tool successfully handles:
  - Multiple data format versions (primSize 25 and 51)
  - Various mesh topologies (6 to 444 faces)
  - Sparse and dense primitive distributions
  - Optional metadata (keys)
  - All files produce valid, well-formed JSON output

Data layout parsing is CONSISTENT and ROBUST across all tested files.

=================================================================