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feat : ✨ resolve [TODO] - provide file size of imported mesh #219

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feat : ✨ resolve [TODO] - provide file size of imported mesh #219

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eeaa3ca
feat : ✨ resolve [TODO] - provide file size of imported mesh
slash9494 Apr 22, 2022
861468d
fix : condition of fetching local file & throw fetch error
slash9494 Apr 25, 2022
3d07330
fix : static asset file fetch from disk-cache
slash9494 Apr 28, 2022
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38 changes: 32 additions & 6 deletions packages/react-babylonjs/src/hooks/loaders/useSceneLoader.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -153,6 +153,11 @@ const useSceneLoaderWithCache = (): ((
// eslint-disable-next-line react-hooks/rules-of-hooks
const sceneLoaderContext = useContext<SceneLoaderContextType>(SceneLoaderContext)

const pathOrigin = window.location.origin
const isLocalAsset = suspenseKey.includes(pathOrigin) || !/^http/.test(suspenseKey)
let fileFetchFlag = 0
let fileTotalSize = 0;

const createSceneLoader = (): (() => LoadedModel) => {
const taskPromise = new Promise<LoadedModel>((resolve, reject) => {
const loadedModel = new LoadedModel()
Expand Down Expand Up @@ -232,15 +237,36 @@ const useSceneLoaderWithCache = (): ((
originalDispose.call(loadedModel)
}

fileTotalSize = 0
fileFetchFlag = 0
resolve(loadedModel)
},
(event: ISceneLoaderProgressEvent): void => {
if (opts.reportProgress === true && sceneLoaderContext !== undefined) {
sceneLoaderContext!.updateProgress(event)
}
if (opts.onLoadProgress) {
opts.onLoadProgress(event)
}
;(async () => {
if(event.total !== 0 ){
fileTotalSize = event.total
}

if (isLocalAsset && fileTotalSize === 0 && fileFetchFlag === 0) {
fileFetchFlag += 1
try {
const response = await fetch(sceneFilename ? suspenseKey : rootUrl,{
cache: 'force-cache',
})
const { size } = await response.blob()
fileTotalSize = size
} catch (error) {
console.error(`failed to get the file size : ${error}`)
}
}

if (opts.reportProgress === true && sceneLoaderContext !== undefined) {
sceneLoaderContext!.updateProgress({ ...event, total: fileTotalSize })
}
if (opts.onLoadProgress) {
opts.onLoadProgress({ ...event, total: fileTotalSize })
}
})()
},
(_: Scene, message: string, exception?: any): void => {
if (opts.onModelError) {
Expand Down
4 changes: 1 addition & 3 deletions packages/storybook/stories/babylonjs/ScaledModelWithProgress.js
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Original file line number Diff line number Diff line change
Expand Up @@ -12,9 +12,7 @@ const ProgressFallback = (props) => {
let loadProgress = 0;
if (sceneLoaderContext.lastProgress) {
const progress = sceneLoaderContext.lastProgress;
loadProgress = progress.lengthComputable
? progress.loaded / progress.total
: progress.loaded / 10000; // TODO: provide option to input file size for proper loading.
loadProgress = progress.loaded / progress.total;
}

return (
Expand Down