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Introduction
Here's what we'll learn: why the first preview feels slow, what it means if it's green in the timeline, how to speed up the preview using the preview panel, and how to clean up the cache. Let's get started. Hello, welcome back to the complete Adobe After Effects series from Cerdas Inovasi Digital. After Effects doesn't play video like a regular player. Each frame has to be rendered first into memory before it can be played. In this episode, we'll learn how the preview and cache work using a rapids river footage.
Step 1: Preview with Spacing
Create a composition from the rapids river footage. Press space. When played for the first time, After Effects renders every frame. Notice if the green grows underneath the time ruler, that's a sign the frame has been saved in the cache memory. Press space again to stop.
Step 2: Rewind from Cache
Press space once more. The already green part plays in real time because it doesn't need to be re-rendered. This is why the second preview is always smoother. As long as there are no changes to the layer, the cache remains valid.
Step 3: Preview Panel
Open the preview panel on the right. Here are the play button, first and last frame, and preview settings. Frame rate auto follows the composition. Skip 0 means all frames are rendered. Fill 1 to render every other frame. Resolution auto follows the composition panel resolution.
Step 4: Preview from Current Time
Move the time indicator to the eighth second. When space is pressed, the preview starts from the indicator position, not from the beginning. This is practical for checking the end of an animation. If the green area grows again in the newly rendered range.
Step 5: Clear Cache with Purge
The case uses RAM and disk. If the computer starts to slow down, open the Edit menu, purge, OL memory and disk cache. Confirm with okay. If the green color disappears because all frames have been purged. and the next preview will re-render.
Step 6: Audio in Preview
Import piano music and drag to the timeline. Select the audio layer and press L twice to display its waveform. The peak of the wave indicates the part of the music that is loud. When previewing with space, audio is also played, which is useful for synchronizing animation with music.
Done!
Done. We already understand the preview with spacing, When in green mode, real-time playback, preview panel with frame rate, skip, and resolution, Preview from now, purge cache, and audio waves. In the next episode, we will set up the workspace and safely save the project. Need a promotional video, logo animation, motion graphics for social media, Or visual effects for short films? Cerdas Inovasi Digital provides motion graphics and visual effects services, as well as opening After Effects courses from beginner to advanced level. Want to master the entire series? 104 episodes from the interface to the final project? All episodes, complete with step-by-step PDF guides, source footage, and project script, Available for premium tutorial subscribers. Subscribe starting at Rp69.000 per month, Save 28% with the 12-month package, Or pay once Rp999.000 for lifetime access. Want just one class? Buy single class with lifetime access. Subscribe now at the premium page cerdasinovasidigital.com Contact our WhatsApp or visit cerdasinovasidigital.com Thank you for watching, see you in the next episode.
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Cerdas Inovasi Digital Team
Software developers, BIM & 3D engineers, and AI practitioners
52 video classes1,276 episodes
We build software, BIM models, games and AI automations for clients every day, and turn that hands-on work into step-by-step classes: every step is shown on screen and comes with a PDF guide you can keep.
