{"record":{"id":"b7159842bfee287a","repo":"BabylonJS/Babylon.js","slug":"fluentbuttonmaterial-this-name-failed-to-load","errorCode":null,"errorMessage":"FluentButtonMaterial \"${this.name}\" failed to load blob texture \"${this._blobTextureUrl}\"${textureErrorMessage ? `: ${textureErrorMessage}` : \"\"}. Check FluentButtonMaterial.BLOB_TEXTURE_URL and asset availability.","messagePattern":"FluentButtonMaterial \"(.+?)\" failed to load blob texture \"(.+?)\"(.+?)` : \"\"\\}\\. Check FluentButtonMaterial\\.BLOB_TEXTURE_URL and asset availability\\.","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"packages/dev/gui/src/3D/materials/fluentButton/fluentButtonMaterial.pure.ts","lineNumber":320,"sourceCode":"        const drawWrapper = subMesh._drawWrapper;\r\n\r\n        if (this.isFrozen) {\r\n            if (drawWrapper.effect && drawWrapper._wasPreviouslyReady) {\r\n                return true;\r\n            }\r\n        }\r\n\r\n        if (!subMesh.materialDefines) {\r\n            subMesh.materialDefines = new FluentButtonMaterialDefines();\r\n        }\r\n\r\n        const defines = <FluentButtonMaterialDefines>subMesh.materialDefines;\r\n        const scene = this.getScene();\r\n\r\n        const blobTextureError = this._blobTexture.errorObject;\r\n        if (this._blobTexture.loadingError || blobTextureError) {\r\n            const textureErrorMessage = blobTextureError?.message || (blobTextureError?.exception instanceof Error ? blobTextureError.exception.message : undefined);\r\n            throw new Error(\r\n                `FluentButtonMaterial \"${this.name}\" failed to load blob texture \"${this._blobTextureUrl}\"${textureErrorMessage ? `: ${textureErrorMessage}` : \"\"}. Check FluentButtonMaterial.BLOB_TEXTURE_URL and asset availability.`,\r\n                { cause: blobTextureError?.exception }\r\n            );\r\n        }\r\n\r\n        if (!this._blobTexture.isReady()) {\r\n            return false;\r\n        }\r\n\r\n        if (this._isReadyForSubMesh(subMesh)) {\r\n            return true;\r\n        }\r\n\r\n        const engine = scene.getEngine();\r\n\r\n        // Attribs\r\n        PrepareDefinesForAttributes(mesh, defines, true, false);\r\n\r","sourceCodeStart":302,"sourceCodeEnd":338,"githubUrl":"https://github.com/BabylonJS/Babylon.js/blob/0592b347b8a4ee0236089ea86a749cacfdb266d8/packages/dev/gui/src/3D/materials/fluentButton/fluentButtonMaterial.pure.ts#L302-L338","documentation":"FluentButtonMaterial requires a blob texture (from FluentButtonMaterial.BLOB_TEXTURE_URL) to be ready before rendering. When the texture reports a loading error or an errorObject, the material throws during isReadyForSubMesh instead of rendering with a broken texture. The error names the material, URL, and underlying texture error.","triggerScenarios":"Assigning a submesh using FluentButtonMaterial whose _blobTexture failed to load: wrong/unreachable BLOB_TEXTURE_URL, network/CDN failure, missing asset in the bundle, CORS-blocked fetch, or malformed image file.","commonSituations":"Deploying without copying the blob texture asset; hardcoding a URL that 404s; loading the material in an offline/Electron app with no network; asset pipeline renaming the texture; CORS misconfiguration when textures come from another domain.","solutions":["Verify FluentButtonMaterial.BLOB_TEXTURE_URL points to a reachable, correctly-served blob texture; fix the URL or host the asset locally.","Check DevTools/network tab for the texture request failing (404/CORS/403) and fix server config or move the asset into the project.","Preload the texture yourself and check texture.isReady()/errorObject before adding meshes using this material.","Use an onError handler on the Texture to capture the failure early and substitute a fallback texture.","Ensure the asset is included in your bundler/deployment output (copy as static asset)."],"exampleFix":"// before\nFluentButtonMaterial.BLOB_TEXTURE_URL = \"https://assets.example.com/fluent/blobs.png\"; // 404\n// after\nFluentButtonMaterial.BLOB_TEXTURE_URL = new URL(\"./assets/fluentBlobTexture.png\", import.meta.url).href; // bundled, verified asset","handlingStrategy":"try-catch","validationCode":"const tex = new Texture(FluentButtonMaterial.BLOB_TEXTURE_URL, scene);\nawait new Promise((res, rej) => { tex.onLoadObservable.addOnce(res); tex.onErrorObservable.addOnce(rej); });\nif (tex.errorObject) throw new Error(`Blob texture unavailable: ${tex.errorObject.message}`);","typeGuard":"function isBlobTextureReady(t: Texture): t is Texture & { isReady(): true } {\n  return t.isReady() && !t.loadingError && t.errorObject == null;\n}","tryCatchPattern":"try {\n  scene.render(); // material becomes ready\n} catch (e) {\n  if (e instanceof Error && e.message.includes(\"failed to load blob texture\")) {\n    FluentButtonMaterial.BLOB_TEXTURE_URL = FALLBACK_LOCAL_URL;\n    material.markDirty();\n  } else throw e;\n}","preventionTips":["Verify BLOB_TEXTURE_URL resolves to a bundled, deployed asset (test with curl/fetch)","Add Texture onError handlers to surface failures before render","Prefer same-origin or CORS-enabled texture hosting","Include texture assets in your bundler copy config and CI deployment checks"],"tags":["texture","material","asset-loading","network"],"backgroundTag":"texture-load-failed","analyzedSha":"0592b347b8a4ee0236089ea86a749cacfdb266d8","analyzedAt":"2026-08-30T15:11:20.442Z","schemaVersion":2},"datasetVersion":"2026-08-30T18:17:15.746Z"}