Adobe 12040118 Tutorial - Page 254

You control color management for each output item using the Output Module Settings dialog box. Important: When you export to SWF format, you use the Export menu, not the Render Queue panel, so the output module settings are not available for this output type. If color management is enabled for the project, After Effects automatically converts colors from the working color space of the project to the sRGB IEC61966-2.1 color space when exporting to SWF. The output color profile for a render item determines what calculations are performed when converting the colors of a rendered composition from the working color space of the project to the color space for the output medium. If a project working space has not been set-that is, if color management is not on for the project-then you cannot assign an output color profile. For example, after creating a movie in an HDTV (Rec. 709) working color space for output to film, you likely want to output to a log-encoded Cineon/DPX color space using a film output color profile. If, on the other hand, you're creating a movie for high-definition television, you should choose an HDTV (Rec. 709) output profile. The output color profile for a render item is part of an output module and is displayed in the output module group in the Render Queue panel. You can assign multiple output modules to one render item, each with its own output color profile, allowing you to create output movies for various media from one rendered movie. The Convert To Linear Light option determines whether the colors are output to a linear color profile (gamma equals 1.0). It is seldom a good idea to output to linear light for 8-bpc or 16-bpc color, so the default setting for Convert To Linear Light is On For 32 bpc. (See Gamma and tone response.) Some file formats-such as Photoshop (PSD), PNG, TIFF, and JPEG-allow for the embedding of a color profile. If you embed a color profile in an output file, then you can be more certain that programs that use the file will correctly interpret its color information. After Effects chooses a rendering intent based on the output color profile that you choose. For most output types, the rendering intent is relative colorimetric (with black point compensation); for output to film negative, the rendering intent is absolute colorimetric. You can prevent the conversion of colors from the working color space for a single output item by selecting Preserve RGB in the Color Management tab of the Output Module Settings dialog box. This option preserves RGB numbers; color appearance is not preserved. Turning off color management for a specific footage item is useful when the footage item is not intended for visual display, but is instead intended for use as a control layer-for example, a displacement map. 1. Click the underlined text next to the Output Module heading for the render item in the Render Queue panel. 2. In the Color Management tab of the Output Module Settings dialog box, choose a value from the Output Profile menu: sRGB IEC61966-2.1 For display in web browsers and other web-based environments. SDTV NTSC or SDTV PAL For display on standard-definition television. If the codec that you are using does not adjust luma levels, choose a 16-235 profile to compress luma levels. Kodak 5218/7218 Printing Density For film-out corresponding to the scene capture of Kodak 5218 camera negative film. If you don't see the profile that you want in the Output Profile menu, select Show All Available Profiles. This option shows the motion-picture film color profiles. 3. Read the information in the Description area of the dialog box to confirm that the conversion is the one that you want, and click OK. Enable or disable display color management To the top When color management is on, the default behavior is for RGB pixel values to be converted to the color space of your computer monitor from the working color space for the project. Color appearance is preserved; RGB numbers are not preserved. This behavior is adequate for most uses, but you sometimes need to see how the colors are actually going to look when viewed through a system that does not use color management. For example, you may need to see how the colors will appear when viewed in a web browser. When display color management is off, the RGB color values are sent directly to your monitor, without any conversion through the monitor profile. RGB numbers are preserved; color appearance is not preserved. When display color management is on for a viewer, a yellow plus sign appears in the Show Channel And Color Management Settings button at the bottom of the viewer. For each viewer (Composition, Layer, or Footage panel), you can choose whether to manage display colors, which involves the conversion of colors from the working color space to the color space of the monitor. 1. Activate a Composition, Layer, or Footage panel. 2. Do one of the following to toggle between enabling and disabling display color management: Click the Show Channel And Color Management Settings button at the bottom of the viewer, and choose Use Display Color Management. Choose View > Use Display Color Management. Press Shift+/ (on the numeric keypad). Output simulation settings (including No Output Simulation) are remembered. Simulate how colors will appear on a different output device To the top