The better applications among them, Rush included, are capable of far more than just straight-ahead renders you can, for example, have one render wait until a certain time or for another one to complete before commencing, and you can automatically requeue renders that fail for any reason.įigure 4.17 One look at Rush Render Queue’s UI will tell you you’re not in After Effects land anymore, but it’s plenty sophisticated at managing network renders from After Effects and the many other applications, 2D and 3D, that enable command line render management. These programs run scripts that manage the process of running aerender on multiple machines ( Figure 4.17). The aerender command is also key to third-party rendering solutions such as Rush Render Queue ( ). This script automatically sets up the command line not only to render in the background, freeing the open application to be used for more work, but using extra commands such as nice to set the priority and number of processors that you specify. For that reason I highly recommend loading a free script from called BG Renderer into the Script UI Panels folder, also in the After Effects CS4 folder. However, that’s a little complicated and involves typing in commands, not the favorite activity of most visual artist types. Arguments in quotes can be added to the command aerender and the location string of the project file. The last edition of this book mentioned using the command line (in Terminal Unix shell on Mac or the DOS shell in Windows) to run aerender to do this, you can locate it in your After Effects CS4 folder and drag it into the shell window then press Enter to get the manual. aerenderĪlmost any production system these days has multiple processors and cores, and this has opened the possibility of background rendering, which allows a render to occur in the background while you continue to work in the foreground. One way to get a lot more power out of After Effects is to improve upon the standard method of rendering, which ties up the application itself, and most of the machine’s processing power, for as long as is needed to output footage. See Chapter 1 for specifics on multiprocessing, caching, and previewing. This is what proxies were designed to do, to allow a low-resolution file to stand in, temporarily and nondestructively, for the high-resolution final. Although the scale of the proxy differs from that of the source item, transform settings within the comps that use this item remain consistent with those of the source item so that it can be swapped in for final at any time. A render queue item is created and automatically renders at Draft quality and half-resolution the Output Module settings create a video file with alpha, so that transparency is preserved, and the Post-Render Action uses the Set Proxy setting.įigure 4.15 shows how a proxy appears in the Project panel. To create a proxy, context-click an item in the Project panel and choose Create Proxy > Movie (or Still). Its pixel dimensions, color space, compression, and even its length can differ from the item it replaces for example, you can use a low-resolution, JPEG-compressed still image to stand in for a full-resolution, moving image background. Proxies and Pre-RendersĪny visual item in your Project panel can be set with a proxy, which is an imported image or sequence that stands in for that item. If you choose Import & Replace Usage and then need to change back, Alt/Option-drag the source comp over the replacement clip in the Project to globally replace its usage. With either of the latter two, the Pickwhip icon adjacent to the menu can be clicked and dragged to whatever item in the Project panel needs replacement so that if you’ve already created a pre-render or proxy, you can replace it ( Figure 4.14). Set Proxy: Adds a proxy to the source comp (or any other item you specify).Import & Replace Usage: Keeps the source comp but replaces its use-or that of any other element you choose instead-in the project.After the render is complete, you can choose Tucked away in the Render Queue panel, but easily visible if you twirl down the arrow next to Output Module, is a menu of three post-render actions. Pre-rendering a subcomp does, however, lead to a decision about what happens after you render it. It is disabled by default because it requires extra processing power I leave it on because it costs more time not to know. Preferences > Display > Show Rendering in Process in Info Panel and Flowchart shows what is happening on your system.
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