` currently only accepts 1 string flag from the user. Using only flags means the system relies solely on us predicting users' needs and implementing a \"mode\" for them.\r\nAccepting only a single flag means we can't have a compound policy, e.g., \"rerender if advance or invalidate were called or the window resized. Afaik, this currently leads to cases where manual is the mode – the canvas will be blank if the window is resized, until invalidate is called.\r\n\r\n\r\n\r\n### Suggested solution\r\n\r\nEncapsulate the logic for \"Should the next tick update/render?\" in a module – maybe `src/core/renderPolicy.ts`?\r\nLet the render policy be specified via functions/objects as follows:\r\n\r\n```ts\r\nimport { createRenderPolicy, manual } from '...'\r\nconst policy = createRenderPolicy(manual)\r\nconst { invalidate } = policy\r\n...\r\n\u003CTresCanvas :render-policy=\"policy\" />\r\n```\r\n\r\nAbove, \r\n\r\n- manual is \"rule\" function that contains its own state, tracking if invalidate() was called since the last update.\r\n- policy is an object that relays calls to invalidate and advance to its rules, then asks the rules if the next tick should update/render or not.\r\n\r\nIn this way, we could have compound policies. E.g.,\r\n\r\n```ts\r\n// NOTE: This policy will approve the next tick of jobs if ...\r\n// - `invalidate()` was called\r\n// - the window was resized\r\n// but cancel if ...\r\n// - the canvas is off-screen\r\nconst { shouldUpdate, invalidate } = createRenderPolicy([manual, windowResize, cancelIfOffScreen])\r\nshouldUpdate() // false\r\ninvalidate()\r\nshouldUpdate() // true\r\n```\r\n\r\nRules would be evaluated in FILO order, with the result of lower ranking rules being passed to higher ranking rules, so this ...\r\n\r\n```\r\ncreateRenderPolicy([manual, cancelIfOffScreen, windowResize])\r\n```\r\n\r\n... cancels true from windowResize if the canvas is offscreen. But if the canvas is off-screen, manual's advance(n) will still take precedence.\r\n\r\nWhereas here ...\r\n\r\n```\r\ncreateRenderPolicy([cancelIfOffScreen, manual, windowResize])\r\n```\r\n\r\n... `cancelIfOffScreen` takes precedence over the other 2 rules and cancels both if the canvas is off-screen. \r\n----\r\n\r\nRules are relatively simple to write and users could supply their own rules, if we surface that in the API. Here's a \"complicated\" rule – `windowResize` – in its current form:\r\n\r\n```ts\r\nexport const windowResize: CreateUpdateRule = () => {\r\n let invalidated = true\r\n const invalidate = () => { invalidated = true }\r\n window.addEventListener('resize', invalidate)\r\n return {\r\n shouldUpdate: (lowRankResult: boolean) => {\r\n const result = invalidated\r\n invalidated = false\r\n return result || lowRankResult\r\n },\r\n dispose: () => {\r\n window.removeEventListener('resize', invalidate)\r\n }\r\n }\r\n}\r\n```\r\nHere's manual:\r\n\r\n```ts\r\nexport const manual: CreateUpdateRule = () => {\r\n let numFramesToAdvance = 0\r\n return {\r\n advance: (numFrames = 1) => {\r\n numFramesToAdvance = Math.max(numFramesToAdvance, numFrames)\r\n },\r\n shouldUpdate: (lowRankResult: boolean) => {\r\n const result = numFramesToAdvance > 0\r\n numFramesToAdvance = Math.max(0, numFramesToAdvance - 1)\r\n return result || lowRankResult\r\n }\r\n }\r\n}\r\n```\r\n\r\n### Alternative\r\n\r\n_No response_\r\n\r\n### Additional context\r\n\r\n_No response_\r\n\r\n### Validations\r\n\r\n- [X] I agree to follow this project's [Code of Conduct](https://github.com/Tresjs/tres/blob/main/CODE_OF_CONDUCT.md)\r\n- [X] Read the [Contributing Guidelines](https://github.com/Tresjs/tres/blob/main/CONTRIBUTING.md).\r\n- [X] Read the [docs](https://tresjs.org/guide).\r\n- [X] Check that there isn't [already an issue](https://github.com/tresjs/tres/issues) that reports the same bug to avoid creating a duplicate.\r\n\r\nEdit (andretchen0): fixed formatting ",[3035,3036],{"name":3019,"color":3020},{"name":3037,"color":3038},"pending-triage","97A4FE",689,"Render mode policies","2024-05-24T14:21:03Z","https://github.com/Tresjs/tres/issues/689",0.74001646,{"description":3045,"labels":3046,"number":3051,"owner":3025,"repository":3026,"state":3027,"title":3052,"updated_at":3053,"url":3054,"score":3055},"As a developer using Tres, I would like a to have a render mode that pauses rendering when:\r\n\r\n* the window/app containing the Tres Scene is blurred/backgrounded\r\n* OR the tab/page containing the Tres Scene is blurred/backgrounded\r\n\r\nAnd resumes rendering when:\r\n\r\n* the window/app containing the Tres Scene is focused/foregrounded\r\n* AND the tab/page containing the Tres Scene is focused/foregrounded\r\n\r\n### Context\r\n\r\n> @andretchen0 @alvarosabu In my tests with `babylonjs` (other engine but should be similar) this worked well, when the tab was in the background yes. But using multiple windows where the window running the engine is visible but not focused left it running at 60 FPS. Given many 3d websites/applications are very resource intensive I'd still consider adding the option to pause rendering when the tab/window is not focused.\r\n\r\n_Originally posted by @thomasaull in https://github.com/Tresjs/tres/issues/497#issuecomment-1900650512_\r\n ",[3047,3048],{"name":3019,"color":3020},{"name":3049,"color":3050},"p2-to-be-discussed","97C1B1",517,"feat: render mode to pause rendering when window is blurred","2024-03-30T15:41:46Z","https://github.com/Tresjs/tres/issues/517",0.74549276,{"description":3057,"labels":3058,"number":3062,"owner":3025,"repository":3063,"state":3064,"title":3065,"updated_at":3066,"url":3067,"score":3068},"**Describe the bug**\r\nA clear and concise description of what the bug is. If you intend to submit a PR for this issue, tell us in the description. Thanks!\r\n\r\nHi! Fist of all, What a great library! I'm playing with it, and so far... I LOVE IT! now... to the error, I am currently trying to use the post-processing package on a scene and I get the following error when I use it:\r\n\r\n\r\n\r\n**Reproduction**\r\nThis same happens whenever you check the examples:\r\nhttps://playground.tresjs.org/experiments/nuxt-stones\r\n\r\n\r\n\r\n\r\n**Steps**\r\nSteps to reproduce the behavior:\r\n1. Just adding the EffectComposer with a default bloom effect.\r\n\r\n**Expected behavior**\r\nFor the effect composer component to work\r\n\r\n**Screenshots**\r\nIf applicable, add screenshots to help explain your problem.\r\n\r\n**System Info**\r\nOutput of `npx envinfo --system --npmPackages '{vite,@tresjs/*, three, vue}' --binaries --browsers` \r\n```\r\nSystem:\r\n OS: macOS 13.4.1\r\n CPU: (8) arm64 Apple M1\r\n Memory: 323.22 MB / 16.00 GB\r\n Shell: 5.9 - /bin/zsh\r\n Binaries:\r\n Node: 18.15.0 - ~/.nvm/versions/node/v18.15.0/bin/node\r\n npm: 9.5.0 - ~/.nvm/versions/node/v18.15.0/bin/npm\r\n Browsers:\r\n Chrome: 116.0.5845.110\r\n Safari: 16.5.2\r\n npmPackages:\r\n @tresjs/cientos: ^3.1.0 => 3.1.0 \r\n @tresjs/core: ^3.1.0 => 3.1.0 \r\n @tresjs/post-processing: ^0.3.0 => 0.3.0 \r\n vite: ^2.8.0 => 2.9.16 \r\n```\r\n\r\n**Additional context**\r\nAdd any other context about the problem here.\r\n",[3059],{"name":3060,"color":3061},"bug","d73a4a",49,"post-processing","closed","Cannot read properties of undefined (reading 'canvas')","2023-10-19T15:07:15Z","https://github.com/Tresjs/post-processing/issues/49",0.6725819,{"description":3070,"labels":3071,"number":3072,"owner":3025,"repository":3073,"state":3064,"title":3074,"updated_at":3075,"url":3076,"score":3077},"### Describe the bug\n\nI am trying to use a TresCanvas that is known to work when using in a staticly declared way\r\nbut if I use it in a component that is dynamicly loaded using \r\n\r\n`defineAsyncComponent(() => import('@/components/pageBuilder/component.vue'))`\r\n\r\nit doesn't render the canvas the most I can get is the following\r\n\r\n`\u003Cdiv window-size=\"\" clear-color=\"#241246\" shadows=\"\" data-v-3789b801=\"\">\u003Ccanvas style=\"\">\u003C/canvas>\u003C/div>`\r\n\r\n## Recent findings\r\n\r\njust having the TresCanvas in a component that is nested 2 levels deep doesn't work.\r\nno idea why or what is causing this. \r\n\r\nI've provided a reproduction of this\r\n\n\n### Reproduction\n\nhttps://stackblitz.com/edit/tresjs-basic-z2g8yk?file=src%2Fcomponents%2FTheExperience.vue\n\n### Steps to reproduce\n\n_No response_\n\n### System Info\n\n_No response_\n\n### Used Package Manager\n\nnpm\n\n### Code of Conduct\n\n- [X] I agree to follow this project's [Code of Conduct](https://github.com/Tresjs/tres/blob/main/CODE_OF_CONDUCT.md)\n- [X] Read the [Contributing Guidelines](https://github.com/Tresjs/tres/blob/main/CONTRIBUTING.md).\n- [X] Read the [docs](https://tresjs.org/guide).\n- [X] Check that there isn't [already an issue](https://github.com/tresjs/tres/issues) that reports the same bug to avoid creating a duplicate.\n- [X] The provided reproduction is a [minimal reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) of the bug.",[],79,"nuxt","TresCanvas doesn't render in Dynamicly loaded components or deeply nested components","2024-01-26T12:08:01Z","https://github.com/Tresjs/nuxt/issues/79",0.7237534,{"description":3079,"labels":3080,"number":3087,"owner":3025,"repository":3088,"state":3064,"title":3089,"updated_at":3090,"url":3091,"score":3092},"### Description\r\n\r\nAs a developer using TresJS, I want \r\n- Environment props to be reactive\r\n- More presets other than 'sunset' (city, etc)\r\n\r\n so that:\r\n- I can dynamically configure the preset or toggle the `background` property\r\n\r\n### Suggested solution\r\n\r\nModify the `useEnvironment/component.ts` component so:\r\n\r\n- Convert to vue file SFC\r\n- texture should be a ref\r\n- Set the default for the props here.\r\n\r\nModify the `useEnvironment/index.ts` composable so:\r\n\r\n- Reacts to prop changes (Using watchers and computed)\r\n- Return the texture as a ref\r\n\r\n \r\n\r\n### Alternative\r\n\r\n_No response_\r\n\r\n### Additional context\r\n\r\n_No response_\r\n\r\n### Validations\r\n\r\n- [X] I agree to follow this project's [Code of Conduct](https://github.com/Tresjs/cientos/blob/main/CODE_OF_CONDUCT.md)\r\n- [X] Read the [Contributing Guidelines](https://github.com/Tresjs/cientos/blob/main/CONTRIBUTING.md).\r\n- [X] Read the [docs](https://cientos.tresjs.org/guide).\r\n- [X] Check that there isn't [already an issue](https://github.com/tresjs/cientos/issues) that reports the same bug to avoid creating a duplicate.",[3081,3084],{"name":3082,"color":3083},"good first issue","7057ff",{"name":3085,"color":3086},"help wanted","008672",147,"cientos","Enhance Environment and useEnvironment abstractions","2023-10-09T17:33:47Z","https://github.com/Tresjs/cientos/issues/147",0.7245022,{"description":3094,"labels":3095,"number":3087,"owner":3025,"repository":3063,"state":3064,"title":3103,"updated_at":3104,"url":3105,"score":3092},"Attempting to use the 1.0.0 release with Nuxt, I get an error on the `nuxt prepare` step. This is reproducible within this repo's nuxt playground if you update the dependency to 1.0.0.\r\n\r\n```\r\n ERROR ENOENT: no such file or directory, open '/Users/.../.../post-processing/playground-nuxt/@tresjs/post-processing' 10:29:39 AM\r\n ```\r\n\r\nThis does not happen when using `1.0.0-next.1`.\r\n\r\n```\r\n- Operating System: Darwin\r\n- Node Version: v20.10.0\r\n- Nuxt Version: 3.14.1592\r\n- CLI Version: 3.15.0\r\n- Nitro Version: 2.10.4\r\n- Package Manager: npm@10.8.3\r\n- Builder: -\r\n- User Config: default\r\n- Runtime Modules: @nuxt/eslint@0.7.2, @pinia/nuxt@0.7.0, @nuxtjs/supabase@1.4.3, @primevue/nuxt-module@4.2.4, @nuxtjs/tailwindcss@6.12.2, nuxt-lodash@2.5.3, @nuxt/icon@1.8.2, @tresjs/nuxt@3.0.7\r\n- Build Modules: -\r\n```\r\n\r\nThanks for maintaining this project!",[3096,3097,3100],{"name":3060,"color":3061},{"name":3098,"color":3099},"p4-important-bug","D93F0B",{"name":3101,"color":3102},"types","5C076E","Broken imports in v1.0.0 w/ Nuxt","2025-01-03T09:37:19Z","https://github.com/Tresjs/post-processing/issues/147",{"description":3107,"labels":3108,"number":3109,"owner":3025,"repository":3088,"state":3064,"title":3110,"updated_at":3111,"url":3112,"score":3113},"### Describe the bug\n\nHi! \r\nTLDR;\r\nI was wondering if there is a way to make the Precipitation component animate after using disableRender on the main TresCanvas.\r\n\r\nWhole story:\r\nI currently playing with custom shaders and wanted to try them inside Tres, I created a function that extracts the context of the TresCanvas component from a ref to create the RenderPass:\r\n\r\n```const addRenderPasses = () => {\r\n // render pass\r\n const renderPass = new RenderPass(\r\n tresCanvas.value.context.scene.value,\r\n tresCanvas.value.context.camera.value\r\n )\r\n\r\n // Distortion pass\r\n distortPass.value = new ShaderPass(LensDistortionShader)\r\n distortPass.value.material.defines.CHROMA_SAMPLES = 10\r\n\r\n // compopser\r\n composer.value = new EffectComposer(tresCanvas.value.context.renderer.value)\r\n composer.value.setSize(window.innerWidth, window.innerHeight)\r\n composer.value.setPixelRatio(window.devicePixelRatio * 1.3)\r\n\r\n // output pass\r\n const outputPass = new OutputPass()\r\n\r\n // add the passes\r\n composer.value.addPass(renderPass)\r\n composer.value.addPass(distortPass.value)\r\n composer.value.addPass(outputPass)\r\n}\r\n```\r\n\r\nThe thing here is that for me to apply the RenderPass to the TresCanvas we need to disable the default renderer, which means that the Precipitation component from cientos no longer animates, I'm no master at three.js, but if you can guide me on where to thinker, I might be able to sort this. If you have any ideas or advice on how to make this run I am all ears! Other than that, I'm loving Tres.js and its companion libraries (Cientos, Leches and Post Processing)!\r\n\r\nLet me know if you need more context or info!\r\n\r\nCheers!\r\n\r\n\n\n### Reproduction\n\nhttps://stackblitz.com/edit/tresjs-basic-5sm94z\n\n### Steps to reproduce\n\nDescribed above and clear on the stackblitz example\n\n### System Info\n\n```shell\nUsing Stackblitz\n```\n\n\n### Used Package Manager\n\nnpm\n\n### Code of Conduct\n\n- [X] I agree to follow this project's [Code of Conduct](https://github.com/Tresjs/cientos/blob/main/CODE_OF_CONDUCT.md)\n- [X] Read the [Contributing Guidelines](https://github.com/Tresjs/cientos/blob/main/CONTRIBUTING.md).\n- [X] Read the [docs](https://cientos.tresjs.org/guide).\n- [X] Check that there isn't [already an issue](https://github.com/Tresjs/cientos/issues) that reports the same bug to avoid creating a duplicate.\n- [X] The provided reproduction is a [minimal reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) of the bug.",[],276,"How to animate the Precipitation component when using \"disableRender\" on the TresCanvas","2023-11-03T19:38:52Z","https://github.com/Tresjs/cientos/issues/276",0.7253059,{"description":3115,"labels":3116,"number":3120,"owner":3025,"repository":3026,"state":3064,"title":3121,"updated_at":3122,"url":3123,"score":3124},"### Description\r\n\r\n## Problem\r\n\r\nUpdates/renders share the same unordered-from-the-components-perspective callback \"slot\", leading to out-of-sync visuals.\r\n\r\n## Example\r\n\r\nHere's the Cientos' playground demo for `MeshReflectionMaterial`. Notice the extra \"jumps\" in the reflection:\r\n\r\nhttps://github.com/Tresjs/tres/assets/20469369/314a4154-7cef-47d0-977e-e98fd53c8c13\r\n\r\nHere are two adjacent frames. Notice that the \"real\" elements haven't moved, but the reflection \"jumps\" from one frame to the next:\r\n\r\n\u003Cimg width=\"1044\" alt=\"Screenshot 2024-03-29 at 15 13 35\" src=\"https://github.com/Tresjs/tres/assets/20469369/47a6f2d1-817c-4bf1-a164-70969fb3aa7d\">\r\n\r\n## Why it happens\r\n\r\nThe \"jumps\" occur because the updates/renders are all firing in `onLoop`, but out-of-order from the perspective of the FBO reflection. So for a file like this ...\r\n\r\n```vue\r\n\u003Cscript setup lang=\"ts\">\r\nimport { TresCanvas, useRenderLoop } from '@tresjs/core'\r\nimport DemoComponent from './DemoComponent.vue'\r\n\r\nconst { onLoop } = useRenderLoop()\r\n\r\nonLoop(({ elapsed }) => {\r\n console.log(\"Demo update\", elapsed)\r\n})\r\n\u003C/script>\r\n\r\n\u003Ctemplate>\r\n \u003CTresCanvas>\r\n \u003CTresPerspectiveCamera />\r\n \u003CDemoComponent>\u003C/DemoComponent>\r\n \u003C/TresCanvas>\r\n\u003C/template>\r\n\r\n```\r\n\r\n... a single \"tick\" of `onLoop` looks like this:\r\n\r\n\u003Cimg width=\"238\" alt=\"Screenshot 2024-03-29 at 16 41 44\" src=\"https://github.com/Tresjs/tres/assets/20469369/63d33e65-de88-48dc-859d-709863672227\">\r\n\r\nWith this ordering, if `DemoComponent` renders the scene to an FBO, and is then rendered to the screen, it'll always be 1 frame behind `Demo`.\r\n\r\n\r\n\r\n### Suggested solution\r\n\r\nWe could follow R3F's lead here:\r\n\r\n* [Guarantee that rendering happens after `onLoop`](https://docs.pmnd.rs/react-three-fiber/api/hooks#useframe)\r\n* Implement these:\r\n** https://docs.pmnd.rs/react-three-fiber/api/hooks#taking-over-the-render-loop\r\n** https://docs.pmnd.rs/react-three-fiber/api/hooks#negative-indices\r\n\r\nFor example, R3F's `OrbitControls` uses a negative index:\r\n\r\nhttps://github.com/pmndrs/drei/blob/c147c2b1064bc4b457150f995bf714c2e43cf56f/src/core/OrbitControls.tsx#L58C1-L61C13\r\n\r\nIf I understand correctly, that means that the OrbitControls camera is updated before the rest of the scene, which is important in the case of FBOs like in the reflection material.\r\n\r\n### Alternative\r\n\r\nAs a simpler – though less flexible – solution, we could add a few callbacks:\r\n\r\n* `useRenderLoop().onBeforeRender()` – for FBOs\r\n* `useRenderLoop().onRender()` – for actually rendering to the screen\r\n\r\n### Additional context\r\n\r\n_No response_\r\n\r\n### Validations\r\n\r\n- [X] I agree to follow this project's [Code of Conduct](https://github.com/Tresjs/tres/blob/main/CODE_OF_CONDUCT.md)\r\n- [X] Read the [Contributing Guidelines](https://github.com/Tresjs/tres/blob/main/CONTRIBUTING.md).\r\n- [X] Read the [docs](https://tresjs.org/guide).\r\n- [X] Check that there isn't [already an issue](https://github.com/tresjs/tres/issues) that reports the same bug to avoid creating a duplicate.",[3117,3118,3119],{"name":3060,"color":3061},{"name":3019,"color":3020},{"name":3049,"color":3050},607,"`useRenderLoop`: render after updates","2024-05-30T06:58:57Z","https://github.com/Tresjs/tres/issues/607",0.7259924,{"description":3126,"labels":3127,"number":3131,"owner":3025,"repository":3063,"state":3064,"title":3132,"updated_at":3133,"url":3134,"score":3135},"To make the changes made in https://github.com/Tresjs/tres/pull/365 work with postprocessing, the effect composer component should check wether the canvas has a height and width larger than 0.",[3128],{"name":3129,"color":3130},"enhancement","a2eeef",45,"prevent creation of effect composer when canvas has zero height or width","2023-08-21T12:56:26Z","https://github.com/Tresjs/post-processing/issues/45",0.7269396,["Reactive",3137],{},["Set"],["ShallowReactive",3140],{"$fTRc1wZytZ_XrK4EfJfei_Sz-An4H4Yy6syhVxH_PVJc":-1,"$f4R2IhxRihIMobUgVOxRvoJgxvesBkdJsuCSSQ5UBmic":-1},"/Tresjs/lab/68"]