{
  "date": "2026-10-01 America/Toronto",
  "scope": "shader feasibility on software GPUs; no public RHI integration or hardware acceptance",
  "source_sha256": "85426139d63f9d5a447786ca3954874337135d9ea28916b8414b489c8cb527f7",
  "artifact_sha256": {
    "probe.fragment.spv": "38f3a4f01dc9c8cbf66c523edc24ee39f55941eec01c65da3b745f2b7abb7f45",
    "probe.vertex.spv": "ba5e0e9eeb200bffb96d36112f81274a69ca3707df63fa7f555da0f3ac34de1b",
    "probe.wgsl": "22eb7329689f1afe532dd228578fbfd487a87f02bf6a741a0627aad9b9992e3c"
  },
  "compiler_version": "2026.1.2",
  "commands": [
    [
      "out/shader-tools/slang/bin/slangc",
      "tools/shader-probe/probe.slang",
      "-target",
      "spirv",
      "-profile",
      "spirv_1_3",
      "-entry",
      "vertexMain",
      "-stage",
      "vertex",
      "-o",
      "out/shader-probe/probe.vertex.spv",
      "-reflection-json",
      "out/shader-probe/vertex.reflection.json"
    ],
    [
      "out/shader-tools/slang/bin/slangc",
      "tools/shader-probe/probe.slang",
      "-target",
      "spirv",
      "-profile",
      "spirv_1_3",
      "-entry",
      "fragmentMain",
      "-stage",
      "fragment",
      "-o",
      "out/shader-probe/probe.fragment.spv",
      "-reflection-json",
      "out/shader-probe/fragment.reflection.json"
    ],
    [
      "out/shader-tools/slang/bin/slangc",
      "tools/shader-probe/probe.slang",
      "-target",
      "wgsl",
      "-profile",
      "sm_6_0",
      "-entry",
      "vertexMain",
      "-entry",
      "fragmentMain",
      "-o",
      "out/shader-probe/probe.wgsl",
      "-reflection-json",
      "out/shader-probe/wgsl.reflection.json"
    ]
  ],
  "contract": {
    "wgsl": {
      "offsets": {
        "resolution": 0,
        "elapsedTime": 8,
        "direction": 16,
        "tint": 32
      },
      "size": 48,
      "alignment": 16,
      "group": 0,
      "binding": 0,
      "entry_points": [
        "vertexMain",
        "fragmentMain"
      ]
    },
    "spirv": {
      "offsets": {
        "resolution": 0,
        "elapsedTime": 8,
        "direction": 16,
        "tint": 32
      },
      "size": 48,
      "alignment": 16,
      "set": 0,
      "binding": 0,
      "entry_points": [
        "main",
        "main"
      ],
      "layout": "std140 (emitted struct/decorations)"
    }
  },
  "vulkan": {
    "adapter": "llvmpipe (LLVM 20.1.2, 256 bits)",
    "mesa": "25.2.8-0ubuntu0.24.04.2",
    "validation": "SPIRV-Tools + VkResult + pixel oracle; no Vulkan validation layer installed",
    "cases": [
      {
        "width": 96,
        "height": 64,
        "srgb": false,
        "elapsed": 0,
        "mismatches_beyond_2_byte_values": 0
      },
      {
        "width": 96,
        "height": 64,
        "srgb": false,
        "elapsed": 2,
        "mismatches_beyond_2_byte_values": 0
      },
      {
        "width": 64,
        "height": 96,
        "srgb": false,
        "elapsed": 0,
        "mismatches_beyond_2_byte_values": 0
      },
      {
        "width": 64,
        "height": 96,
        "srgb": false,
        "elapsed": 2,
        "mismatches_beyond_2_byte_values": 0
      },
      {
        "width": 96,
        "height": 64,
        "srgb": true,
        "elapsed": 0,
        "mismatches_beyond_2_byte_values": 0
      },
      {
        "width": 96,
        "height": 64,
        "srgb": true,
        "elapsed": 2,
        "mismatches_beyond_2_byte_values": 0
      },
      {
        "width": 64,
        "height": 96,
        "srgb": true,
        "elapsed": 0,
        "mismatches_beyond_2_byte_values": 0
      },
      {
        "width": 64,
        "height": 96,
        "srgb": true,
        "elapsed": 2,
        "mismatches_beyond_2_byte_values": 0
      }
    ]
  },
  "browser_software": {
    "kind": "real software GPU; no hardware acceptance",
    "flags": [
      "--enable-unsafe-webgpu",
      "--enable-features=Vulkan",
      "--use-webgpu-adapter=swiftshader",
      "--use-angle=swiftshader",
      "--use-vulkan=swiftshader",
      "--disable-vulkan-surface"
    ],
    "wgslSha256": "22eb7329689f1afe532dd228578fbfd487a87f02bf6a741a0627aad9b9992e3c",
    "errors": [],
    "browserVersion": "140.0.7339.186",
    "report": {
      "state": "passed",
      "cases": [
        {
          "format": "rgba8unorm",
          "width": 96,
          "height": 64,
          "elapsed": 0,
          "mismatches": 0,
          "maxError": 0
        },
        {
          "format": "rgba8unorm",
          "width": 96,
          "height": 64,
          "elapsed": 2,
          "mismatches": 0,
          "maxError": 0
        },
        {
          "format": "rgba8unorm",
          "width": 64,
          "height": 96,
          "elapsed": 0,
          "mismatches": 0,
          "maxError": 0
        },
        {
          "format": "rgba8unorm",
          "width": 64,
          "height": 96,
          "elapsed": 2,
          "mismatches": 0,
          "maxError": 0
        },
        {
          "format": "rgba8unorm-srgb",
          "width": 96,
          "height": 64,
          "elapsed": 0,
          "mismatches": 0,
          "maxError": 0
        },
        {
          "format": "rgba8unorm-srgb",
          "width": 96,
          "height": 64,
          "elapsed": 2,
          "mismatches": 0,
          "maxError": 0
        },
        {
          "format": "rgba8unorm-srgb",
          "width": 64,
          "height": 96,
          "elapsed": 0,
          "mismatches": 0,
          "maxError": 0
        },
        {
          "format": "rgba8unorm-srgb",
          "width": 64,
          "height": 96,
          "elapsed": 2,
          "mismatches": 0,
          "maxError": 0
        }
      ],
      "errors": [],
      "frames": 23,
      "adapter": {
        "vendor": "google",
        "architecture": "swiftshader",
        "device": "",
        "description": ""
      },
      "compilationMessages": [],
      "canvasFormat": "bgra8unorm"
    },
    "outcome": "passed"
  },
  "browser_default": {
    "kind": "default browser adapter",
    "flags": [],
    "wgslSha256": "22eb7329689f1afe532dd228578fbfd487a87f02bf6a741a0627aad9b9992e3c",
    "errors": [],
    "browserVersion": "140.0.7339.186",
    "report": {
      "state": "failed",
      "cases": [],
      "errors": [
        "Error: No WebGPU adapter"
      ],
      "frames": 0
    },
    "outcome": "failed",
    "failure": "AssertionError [ERR_ASSERTION]: {\"state\":\"failed\",\"cases\":[],\"errors\":[\"Error: No WebGPU adapter\"],\"frames\":0}\n\n'failed' !== 'passed'\n"
  }
}