Rendering menu > Effects > Environment and Effects dialog > Effects panel > Add > Add Effect dialog > File Output
File Output allows you to take a “snapshot” of a rendering before some or all of the other Render Effects are applied, depending on the placement of File Output in the Render Effects stack. You can save different channels such as Luminance, Depth, or Alpha to a separate file while rendering an animation.
You can also use File Output to convert an RGB image into a different channel and send that image channel back into the Render Effects stack. The rest of the effects can then be applied to that channel.
Files—Opens a dialog so you can save the rendered image or animation to disk.
The rendered output can be a still image or an animation, in one of the following file formats:
AVI File (AVI)
BMP Image file (BMP)
Encapsulated PostScript format (EPS, PS)
JPEG File (JPG)
Kodak Cineon (CIN)
MOV QuickTime file (MOV)
PNG Image File (PNG)
RLA Image File (RLA)
RPF Image File (RPF)
SGI's Image File Format (RGB)
Targa Image File (TGA, VDA, ICB, UST)
TIF Image File (TIF)
Devices—Opens a dialog so you can send the rendered output to a device such as a video recorder.
Clear—Clears any file or device selected in the Destination group box.
These buttons are available only when you choose a device as the image source.
About—Provides information on the source of the image-handler software used to bring the image into the software.
Setup—Displays a setup dialog specific to the plug-in. Some plug-ins may not use this button.
Channel—Lets you choose which channel you wish to save or send back in to the Render Effects stack. Choose Whole Image, Luminance, Depth, or Alpha to display more options in the Parameters group box.
Affect Source Bitmap—When activated, this will take in an image with any effects previously applied, convert it to the channel selected, and send it back into the stack for the rest of the effects to be applied. Your rendered image will be saved in the channel selected. This parameter is not available to the Whole Image channel.
When Depth is selected as a channel, new parameters are available for determining what parts of the scene should be rendered into the Depth channel image.
Copy—After choosing a camera with the None button, click Copy to use the camera’s clipping planes to determine which part of the scene should be rendered into the Depth channel image file.
None—Enables you to select a camera to use for copying clipping planes. Click the none button to activate it. The None button will turn green until a camera has been selected in the viewport. The camera’s name will then be displayed on the button instead of None.
Near Z—Specifies the beginning distance from the camera that should be used in determining where to start rendering the scene’s geometry in the depth channel image file.
Far Z—Specifies the ending distance from the camera that should be used in determining where to stop rendering the scene’s geometry in the depth channel image file.
Fit Entire Scene—Makes all other Depth parameters unavailable and will render the entire viewport’s scene geometry in the Depth channel image file, automatically calculating the near and far Z required.