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cables DocumentationHow To UseWorking with filesKeyboard ShortcutsUser Interface WalkthroughBeginner TutorialBeginner 1: Drawing A CircleBeginner 2: TransformationsBeginner 3: ColorMore TransformationsIntermediateImage CompositionsPost-Processing 3D ScenesCommunicationcables APIExporting And EmbeddingHow to serve files externally and fix CORS headersExporting PatchesExport using the cables command line interfaceExport via IframeExport creating a standalone executableExport to github (pages)Export and deploy to netlifyExport a ZIP fileExternal triggers / functionsUsing variablesPreviewing / uploading exported cables patchesExamples for EmbeddingPermissionsUsersPatchesTeamsOpsMultiplayerPatchlistsCoding OpsCreating AttachmentsGeneral op/Port CallbacksPortsDynamic PortsArray PortsBoolean portsInteger Number PortsObject PortsString portsTrigger PortsFloating Point Number PortsGUI/UI attributesHello Op - Part 1LibrariesDeveloping OpsRenaming / Creating a new versionCreating Viz OpsGuidelinesObject PortsWriting ShadersWeb Audio Op DevelopmentHTML And CSS In CablesLightingLightsShadowsWorking With AudioBasic Audio SetupWorking with EffectsReal-Time Audio Analyzation & Audio VisualizationOffline Audio Visualization & AnalyzationOptimizing Performance In PatchesTools for debugging your patchHow to optimize cables patches with the Performance opHow to optimize cables patches with the ProfilerCommon pitfalls with the "usual suspects"Optimizing arraysDebugging Shaders with ShaderInfoFAQAudio in web browsersHow to make demoscene demos with cables.glEmbeddingHow to integrate my cables patch into my CMS (webflow/wix/squarespace/...)?How to remove grey rectangles on touch (mobile)?Why doesn't the DownloadTexture op work on iOS?How to disable page scrolling on mobile?Mobile tippsHow to run exported patches on your local machineTransparent CanvasFeatures and SupportHow to contribute code to cablesWill there be support for (animated) GIFs?Can i use a website as a texture?Screenshots and Video recordingHow to report a bug in cablesHow can I support cables?Video playback in cablesGeneral questionsWhat is dev.cables.glJavascript Frameworkscordova / phonegapelectronreactvuejsLicenses and paymentWhat license do i need to use cables?Will I have to pay for it in the future?How is my work licensed when using cables?Does cables support midi and OSC?Patch PermissionsMy User Profile & Social MediaShadertoyCables at schools and universitiesTechnical questionsWebGL1 and WebGL2
cables Documentation  ⟩  Intermediate  ⟩  Post-Processing 3D Scenes

Post-Processing 3D Scenes

checkout these two videos on youtube for more advanced techniques.
Post processing for beginners part 1
Post processing effects part 2

You can find the finished patch here: postprocessing.

Basic Patch Layout

Step 1

  • Render a scene to a texture

Resulting texture:

Step 2

  • Blur the resulting texture using image compose into a new one

Resulting texture:

Step 3

  • Compose a new image:
    • Draw the image from step 1
    • Draw the blurred image from step 2 using blendmode: add
    • Apply effects like Noise and ChromaticAbbreviation

Resulting texture:

Step 4

  • Draw the final image compose to the screen
help cables get better and edit this file on github