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Rendering menu > Render > Render Scene dialog > Common Parameters rollout
The Common Parameters rollout sets parameters common to all renderers.
To set the size of the image, do one of the following:
In the Output Size group, click one of the preset resolution buttons.
In the Output Size group, choose one of the pre-formatted film or video formats from the drop-down list.
In the Output Size group, choose Custom from the drop-down list, and then adjust the Width, Height, and Aspect Ratio values manually.
Tip: Smaller images render much more quickly. For example, you can use 320 x 240 to render draft images, then change to a larger size for your final work.
To save the rendered still image in a file:
Click Files.
In the file dialog, specify a name and a type for the image file, and then click OK.
The Save File toggle turns on.
You can later turn off Save File if you want only to view the rendering on screen.
Note: The file dialog has a Setup button. This displays a subdialog that lets you choose options specific to the file type you are saving to.
To alter the pixel aspect ratio:
In the Output Size group of the Render Scene dialog, adjust the Pixel Aspect Ratio to fit the requirements of your output device.
The Image Aspect Ratio field updates to show what the aspect of the rendered image will be.
If you alter pixel aspect ratio but also render to a window or a file, the rendered image appears distorted.
The rollout contains the following parameters.
Select which frames you want to render.
Single—Current frame only.
Active Time Segment—The Active Time Segment is the current range of frames as shown in the time slider.
Range—All the frames between and including the two numbers you specify.
Frames—Nonsequential frames separated by commas (for example, 2,5) or ranges of frames, separated by hyphens (for example, 0-5).
Every Nth frame—Regular sample of frames. For example, type 8 to render every 8th frame. Available only for active and range output.
File Number Base—Specifies the base file number, from which the file name will increment. Range= -99,999 to 99,999.
For example, if the Range of frames is set to 0-3, Every Nth Frame is 1, and the File Number Base is 15, the output files are file0015, file0016, file0017, file0018.
You can specify a negative number base, as well. For example, if you're rendering frames 50-55, and set the File Number Base to -50, the result is file-050, file-051, file-052, file-053, file-054, file-055.
Note: If you begin render a range of frames, but haven't assigned a file in which to save the animation (by using the File button, described below), an alert box appears to warn you about this. Rendering animations can take a long time, and usually it doesn't make sense to render a range without saving all frames to a file.
Select one of the predefined sizes or enter another size in the Width and Height fields (in pixels). These controls affect the image's Aspect Ratio.
Drop-down list—The Output Size drop-down list lets you choose from several standard film and video resolutions and aspect ratios. Choose one of these formats, or leave it set to Custom to use the other controls in the Output Size group. These are the options you can choose from on the list:
Note: The values of the Image Aspect and resolution buttons can change, depending on which output format you select from this list.
Aperture Width—Lets you specify an aperture width for the camera that creates the rendered output. Changing this value changes the camera's Lens value. This affects the relationship between the Lens and the FOV values, but it doesn't change the camera's view of the scene.
For example, if you have a Lens setting of 43.0 mm, and you change the Aperture Width from 36 to 50, when you close the Render Scene dialog (or render), the camera Lens spinner has changed to 59.722, but the scene still looks the same in the viewport and the rendering. If you use one of the preset formats rather than Custom, the aperture width is determined by the format, and this control is replaced by a text display.
Width and Height—Let you set the resolution of the output image by specifying the width and the height of the image, in pixels. With Custom format, you can set these two spinners independently. With any other format, the two spinners are locked to the specified aspect ratio, so adjusting one alters the other. The maximum width and height is 32,768x32,768 pixels.
Preset resolution buttons (320x240, 640x480, and so on)—Click one of these six buttons to choose a preset resolution. Right-click a button to display a subdialog that lets you change the resolution specified by the button.
Image Aspect—Lets you set the aspect ratio of the image. Changing this value changes the Height value to maintain the correct dimensions for the active resolution. When you use a standard format rather than Custom, you can't change the aspect ratio, and this control is replaced by a text display.
When using a custom output size, the lock button to the left of Image Aspect locks the aspect ratio. When it is on, the Image Aspect spinner is replaced by a label, and the Width and Height spinners are locked to each other; adjusting one alters the other to maintain the aspect-ratio value. In addition, when the aspect ratio is locked, altering the Pixel Aspect value alters the Height value to maintain the aspect-ratio value.
Note: In viewports, the camera's cone changes to reflect the image aspect ratio you set in the Render Scene dialog. This change takes place when you exit the Render Scene dialog.
Pixel Aspect Ratio—Sets the shape of the pixels for display on another device. The image may look squashed on your display but will display correctly on the device with differently shaped pixels. If you use one of the standard formats rather than Custom, you can't change the pixel aspect ratio and this control is disabled.
The lock button to the left of Pixel Aspect locks the pixel-aspect ratio. When it is on, the Pixel Aspect spinner is replaced by a label, and you can't change the value. This button is available only with the Custom format.
Images with different pixel aspects appear stretched or squashed on a monitor with square pixels.
Video Color Check—Checks for pixel colors that are beyond the safe NTSC or PAL threshold and flags them or modifies them to acceptable values.
By default, "unsafe" colors render as black pixels. You can change the color check display by using the Rendering panel of the Preference Settings dialog.
Atmospherics—Renders any applied atmospheric effects, such as volume fog, when turned on.
Super Black—Super Black rendering limits the darkness of rendered geometry for video compositing. Leave off unless you're sure you need it.
Render Hidden—Renders all objects in the scene, even if they are hidden.
Force 2-Sided—2-Sided rendering renders both sides of all faces. Usually, you'll want to keep this option off to speed rendering time. You may want to turn it on if you need to render the inside as well as the outside of objects, or if you've imported complex geometry in which the face normals are not properly unified.
Effects—Renders any applied rendering effects, such as Blur, when turned on.
Displacement—Renders any applied displacement mapping.
Render to Fields—Renders to video fields rather than frames when creating animations for video.
Use Advanced Lighting—When on, the software incorporates a radiosity solution or light tracing in the rendering.
Compute Advanced Lighting When Required—When on, the software computes radiosity when required on a per-frame basis.
Normally, when rendering a series of frames, the software calculates radiosity only for the first frame. If, in an animation, it might be necessary to recalculate the advanced lighting in subsequent frames, turn this option on. For example, a brightly painted door might open and affect the coloring of a nearby white wall, in which case the advanced lighting should be recalculated.
Save File—When on, the software saves the rendered image or animation to disk when you render. Save File is available only after you specify the output file using the Files button.
Files—Opens the Render Output File dialog, which lets you specify the output file name, format, and location.
The rendered output can be a still image or an animation in one of the following file formats:
Autodesk Flic Image File (FLC, FLI, CEL)
Encapsulated PostScript format (EPS, PS)
If you render multiple frames to a still-image file format, the renderer renders individual frame files and appends sequence numbers to each filename. You can control this with the File Number Base setting.
Use Device—Sends the rendered output to a device such as a video recorder. First click the Devices button to specify the device, for which an appropriate driver must already be installed.
Virtual Frame Buffer—Displays the rendered output in the virtual frame buffer.
Net Render—Enables network rendering. If this is turned on, when you render you'll see the Network Job Assignment dialog.
Skip Existing Images—When activated and Save File is on, the renderer will skip images in a sequence that have already been rendered to disk.
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