day2_7-洪彦彬-Kraftshade 大解密：我们是怎么让 Android 特效“动”起来的.pdf

1、Developed by JetBrainsKotlinKraftshade 大解密：我大解密：我們是怎麼讓們是怎麼讓 Android 特特效效“動動”起來的起來的彥彥彬彬2025 Kotlin 中开发者会About me-Android Taipei host-PicCollage Android dev-Speaker,Author and dancerPicCollage Company：來自矽谷、深耕台北的國際團隊，擅長用創意科技打造好玩 App 全球下載高達2.8億次PicCollage 拼貼趣的製作團隊；AI 剪影、影片特效等功能，讓靈感一鍵即成作品Explore 團隊打造新一代創

2、意 AI 產品，讓每個人都能輕鬆 Create,Connect,Celebrate About Why kraftshade-Existing library for Android is not maintain for a while.-We need a flexible way to build effectsHow to build effects on Android?-RenderScript-Deprecated-AGSL-Only available on View,no off-screen rendering-Vulkan-Only available for C+-Op

3、enGL-Cross-platform-很舊!但是堪用OpenGL render pipelinePart 1-簡介簡介Kraftshade basic components-KraftShadeEffectView-Shader-Pipeline DSLBrightness effectCircular Blur effectCombine effectsCombine effects with graphStepsThe Pipeline DSL-pipeline-SerialStep-graphStep-step-createBufferReferenceKraftShadeEffect

4、ViewKraftShadeAnimatedViewSave as BitmapPart 2-解解密密Smooth Animation key points-Use one dedicated GL Thread-Drive Animation with synchronizd TimeDedicatedGL ThreadPipeline Threading MainThreadGLThreadAnimationWith TimeAnimation with TimeInputSynchronize with TimeInputNested Scope HierarchyGlEnvDslSco

5、pe(Threading&GL Context Management)BasePipelineSetupScope(Pipeline Construction)PipelineRunningScope(Runtime Parameter Config)GLEnvDslScopePipelineSetupScopePipelineRunningScope-Update values every frame-The time should be exactly the same for calls at the same frame-When to render the next frameCha

6、llenges-Update values every frame-The time should be exactly the same for calls at the same frame-When to render the next frameChallengest=0.01t=0.02Input System with dirty flagKeeps VSync-ChoreographerOther advanced features-Modularization