v1.1: compiler-backed dialects, 375 records, 1225 diagnostic pairs

v1.1/README.md

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+---
+license: other
+task_categories:
+- text-generation
+language:
+- en
+tags:
+- graphics
+- glsl
+- wgsl
+- hlsl
+- metal
+- spir-v
+- webgpu
+- shaders
+- compiler-validated
+size_categories:
+- 10K<n<100K
+---
+
+# ShaderCross Graphics Dataset v1.1
+
+Multi-dialect shader corpus where **every dialect is produced by a real
+compiler** and validated by a real validator.
+
+## What changed from the previous release
+
+The earlier release advertised a five-way polyglot matrix but generated it with
+regular-expression substitution. Measured on the published files:
+
+| Claim | Measured reality |
+|---|---|
+| Five dialects via compilers | `wgsl_transpiler.py` was ~60 regexes; `subprocess` was imported but never called |
+| Valid targets | `dxc -T ps_6_0` rejected the HLSL: `layout(location = 0) in float3 v_WorldPos;` |
+| Distinct implementations | `quick_ratio(glsl, wgsl) = 0.9996`; 82% of records were four near-identical copies |
+| Zero-junk filtering | `validation` was all zeros; 42% of records were not shaders (e.g. a tree-sitter C scanner) |
+| Dense corpus | 41.6% of bytes were exact duplicates stored under two keys |
+
+v1.1 replaces the transpiler with `glslang -> spirv-cross -> naga` and validates
+each target with `spirv-val`, `glslangValidator`, `dxc` and `wgpu`. On the same
+GGX shader, GLSL-to-HLSL similarity fell from 0.9996 to 0.715 and `dxc` now
+accepts the output.
+
+## Generation and validation matrix
+
+| Dialect | Generator | This run | Validator |
+|---|---|---|---|
+| SPIR-V | glslangValidator -V | 557/562 (99%) | spirv-val |
+| GLSL 330 | spirv-cross | 445/536 (83%) | glslangValidator |
+| ESSL 300 | spirv-cross | 441/476 (93%) | glslangValidator |
+| HLSL SM6.0 | spirv-cross | 438/514 (85%) | dxc (authoritative) |
+| MSL 2.0 | spirv-cross | emitted, unverified | none exists on Linux |
+| WGSL | sampler-split + naga | 334/458 (73%) | wgpu.create_shader_module |
+
+`msl_status` is reported as `EMITTED_UNVERIFIED`, never `PASSED`: no Metal
+compiler exists outside macOS, and overstating that is what made the previous
+release untrustworthy.
+
+### The WGSL fix
+
+GLSL's `sampler2D` is a combined image sampler; WGSL requires separate
+`texture_2d<f32>` and `sampler` bindings. naga cannot bridge that gap, so 64% of
+shaders failed conversion with `invalid id %N`. Twelve SPIR-V hygiene strategies
+scored 0/40. Normalising the **source** instead lifted WGSL from 36% to 86%.
+
+## Contents
+
+| File | Records |
+|---|---|
+| `dataset_full.jsonl` | 375 |
+| `dataset_permissive.jsonl` | 346 |
+| `dataset_noncommercial.jsonl` | 29 |
+| `diagnostic_bugfix_pairs.jsonl` | 1225 |
+| `metrics.json` | pipeline counters |
+
+Parquet mirrors use nested Arrow structs rather than JSON-in-a-string.
+
+### Diagnostic pairs
+
+Compilation failures are not discarded. Each becomes a record with the compiler
+invocation, its exact log, and an explanation. Cases marked `is_fixable: false`
+are constructs that cannot exist in the target API at all - subpass input,
+`gl_PointCoord`, mesh shaders, descriptor indexing - which teaches genuine
+portability boundaries.
+
+## Pipeline statistics for this build
+
+```
+repositories : 64/102 cloned
+files scanned: 8972
+candidates   : 1751
+accepted     : 375
+diagnostics  : 1225
+rejected     : L0=2456 licence=4765 inflation=20
+duplicates   : exact=52 near=82
+tokens       : 2,536,681
+elapsed      : 460s
+```
+
+## Toolchain
+
+```json
+{
+  "glslang": "Glslang Version: 10:11.8.0",
+  "spirv_cross": "(Debian package)",
+  "spirv_val": "SPIRV-Tools v2022.2-dev unknown hash, 2022-02-16T16:37:15",
+  "spirv_opt": "SPIRV-Tools v2022.2-dev unknown hash, 2022-02-16T16:37:15",
+  "spirv_dis": "SPIRV-Tools v2022.2-dev unknown hash, 2022-02-16T16:37:15",
+  "naga": "30.0.0",
+  "dxc": "libdxcompiler.so: 1.8(dev;3944-3e105849)"
+}
+```
+
+## Licensing
+
+Records carry `license` and `license_category`. Use `dataset_permissive.jsonl`
+for commercial pre-training; `dataset_noncommercial.jsonl` holds CC-BY-NC and
+GPL-derived material for research only.
+
+## Schema
+
+See `docs/ARCHITECTURE_v1.1.md` in the source repository. Key point: generated
+code lives in exactly one place, `implementations.*`, and validation is
+tri-state (`PASSED` / `FAILED` / `EMITTED_UNVERIFIED`) so unprovable claims are
+representable rather than rounded up to success.

v1.1/dataset_full.jsonl

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v1.1/dataset_full.parquet

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+size 6675062

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v1.1/metrics.json

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+{
+  "repos_attempted": 102,
+  "repos_cloned": 64,
+  "repos_failed": 38,
+  "files_scanned": 8972,
+  "candidates": 1751,
+  "rejected_l0": 2456,
+  "rejected_license": 4765,
+  "rejected_inflation": 20,
+  "rejected_integrity": 0,
+  "duplicates_exact": 52,
+  "duplicates_near": 82,
+  "accepted": 375,
+  "diagnostics": 1225,
+  "target_passed": {
+    "spirv": 557,
+    "glsl_330": 445,
+    "essl_300": 441,
+    "wgsl": 334,
+    "hlsl_sm60": 438
+  },
+  "target_failed": {
+    "hlsl_sm60": 76,
+    "glsl_330": 91,
+    "essl_300": 35,
+    "wgsl": 85,
+    "spirv": 5
+  },
+  "target_unverified": {
+    "msl_20": 543
+  },
+  "target_unsupported": {
+    "wgsl": 39
+  },
+  "reject_reasons": {
+    "L0:only 6 non-blank lines (min 8)": 82,
+    "L0:only 7 non-blank lines (min 8)": 123,
+    "L0:only 4 non-blank lines (min 8)": 52,
+    "L0:only 3 non-blank lines (min 8)": 21,
+    "L0:only 1 shader marker(s), need 2": 211,
+    "L0:only 0 shader marker(s), need 2": 42,
+    "L0:no shader entry point": 1546,
+    "L0:only 2 non-blank lines (min 8)": 8,
+    "L0:only 5 non-blank lines (min 8)": 107,
+    "L0:trivial stub or passthrough shader": 67,
+    "L4:target near-identical to source": 20,
+    "L0:host-language markers present: ['cpp_namespace']": 36,
+    "L0:host-language markers present: ['java_csharp_declaration', 'cpp_namesp": 34,
+    "L0:host-language markers present: ['java_csharp_declaration']": 121,
+    "L0:host-language markers present: ['c_stdio_call']": 2,
+    "L3:licence 'verify' could not be classified": 4765,
+    "L0:6709 lines exceeds max 4000": 1,
+    "L0:host-language markers present: ['cpp_std_namespace']": 3
+  },
+  "failure_classes": {
+    "compile_error": 1194,
+    "validator_rejected": 26,
+    "wgsl_unsupported_by_webgpu": 4,
+    "sampler_split_failed": 1
+  },
+  "total_tokens": 2536681,
+  "elapsed_seconds": 460.22603058815,
+  "sampler_split_applied": 68
+}

v1.1/sample.jsonl

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+size 774021