Improved Cache Before Playback
When the Cache Before Playback option is enabled in the Preview panel, After Effects previews the frames as they are rendered.

As the frames are rendered:
Only newly rendered frames are previewed; previously rendered frames are skipped over
Newly rendered frames are played back as fast as possible (note that the maximum preview frame rate is limited by the monitor refresh rate; e.g. 60Hz = 60fps).
After all the frames are rendered, preview of the cached frames begins (with audio, if it is enabled).

Auto-save while starting render queue
You can now control whether After Effects automatically saves the project when you start the render queue by choosing Preferences > Auto-Save.
The new Save When Starting Render Queue option is enabled by default. This new option is a separate control from auto-saving at intervals ("Save every X minutes"). The Auto-Save options have been modified to make it clear that you can choose to save at intervals, save when starting the render queue, or both.
Since After Effects 13.6, auto-saving does not occur when the render queue is rendering. In After Effects 13.6, if the Automatically Save Projects option was enabled in Preferences > Auto-Save, projects were always auto-saved when you started the render queue; After Effects 13.7 now allows you to control this behavior.

Maxon CINEWARE 3.0 integration
This release of After Effects gives you the capability to work natively with Maxon CINEWARE 3.0 Cinema 4D files. The integration provides the following features:

Live Link
Live Link enables synchronization of the timelines of Cinema 4D and After Effects. To use Live Link, ensure that the Cinema 4D paths in the CINEWARE Options dialog is set to a version of Cinema 4D that supports Live Link. When you click the Enable button for Live Link (under the Show help button), the specified Cinema 4D version will open the current file. If Live Link has not been enabled in Cinema 4D, brief instructions appear.
Note: Live Link requires Cinema 4D R17.048 (SP2) or later. If the selected version of Cinema 4D does not support Live Link, the Enable button will be greyed out.

To enable Live Link in Cinema 4D:
Choose Edit > Preferences > Communication > Live Link.
Select Live Link Enabled At Startup. The timelines synchronize while switching between After Effects and Cinema 4D.
When you select a different C4D layer in After Effects, press Enable to synchronize that layer.
Take system

The Cinema 4D R17 Take System has been integrated into CINEWARE. The Set Take button in the CINEWARE effect is enabled if the .c4d file contains takes. If the current renderer does not support take selections, After Effects uses the main take.

Extract .c4d timeline markers
Timeline markers in .c4d files are now added to the C4D layer in After Effects when you click the Extract button.
Note: As before, to avoid problems extracting scene data in After Effects, enable Save Polygons for Melange and Save Animation for Melange in Cinema 4D preferences.

OpenGL renderer
The CINEWARE renderer can now be set to OpenGL for hardware-accelerated rendering.
No renderer limitations for Physical, Hardware, and Sketch and Toon
Renderer limitations have been removed in CINEWARE. When your .c4d file has been saved in a full retail version of Cinema 4D with Render Settings set to the Physical or Hardware renderer, it renders with those settings when the CINEWARE renderer is set to Standard (Final) or Standard (Draft). Sketch and Toon render when the CINEWARE renderer is set to Standard (Final).
Note: While you do not need to have a full retail version of Cinema 4D installed for CINEWARE to render using the Physical or Sketch and Toon renderers, Cinema 4D Lite is not affected by these changes and still has limitations in which renderers it can use.

Multi-pass alpha channels
Multi-pass layers are now created with an alpha channel.

Synchronize C4D Layers
When the Cinema 4D Layers option is enabled, After Effects give you a new option to Synchronize C4D Layers available when there are multiple instances (including extracted passes) of the C4D layer in the composition. All instances of the same layer with Synchronize C4D Layers enabled will synchronize changes made when enabling or disabling Cinema 4D layers by clicking Set Layers.

Note: The difference between the two synchronize options in CINEWARE is as follows:

Synchronize AE layer: Render Settings and Camera options are synchronized on all instances of the C4D layer.
Synchronize C4D Layers: Cinema 4D Layers settings are synchronized on all instances of the C4D layer.
Other changes

The No Pre-calculation option is now enabled by default. This disables pre-calculations for computing motion dynamics or particle simulations. You may need to disable No Pre-calculation for final rendering, depending on the animation used in your c4d file.

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