Creating great Fusion or Color effects comes at a cost. Even the best high-end workstation will not process everything in real-time. This is why DaVinci Resolve offers multiple levels of disk caching. Intermediate results are rendered to disk and accessed quickly for further processing.
Caching takes place in Smart mode and in User mode. User mode allows the user to manually mark individual clips or color nodes for caching. In addition, specific effects like Fusion effects or transitions can be cached automatically via the project settings.
In smart mode, Resolve automatically caches effects that are typically processing intensive. Among them are Fusion effects, transitions, edit composites, OFX effects in the color page, edit page composites, and retime effects. In addition, codecs that are not edit-friendly, like RAW media or h.264/h.265 are cached.
Caching is organized into multiple levels:
- Fusion Output Cache – Complete Fusion effects as well as everything that happens before Fusion. This includes debayering, decoding, and super scaling.
- Fusion Effects / Open FX Effects – In the edit page those effects do not automatically trigger caching, but each effect can be manually selected for caching.
- Color Node Cache – Individual nodes in the color page can be cached. For example a processing intensive noise removal. Simple color corrections via the primary wheels and curves typically do not need caching and are ignored by the smart cache.
- Color Output Cache – Cache the complete grade from the color page.
- Sequence Cache – Edit page Effects, like Edit page composites, transitions, and retime effects are cached on this level.
Watch the tutorial to learn more and see each level in action. Getting great performance for Video Editing, VFX, and Color is tricky and depends on multiple factors. Check out these related tutorials as well: