Autodesk 62205-051408-9001 User Guide - Page 128

Changing the Frame Rate, Mixing Frame Rates in a Composite, Changing the Pixel Aspect Ratio

Page 128 highlights

4 Building Workspaces Changing the Frame Rate The Frame Rate field indicates the frame rate of the footage. By default, it is set to the frame rate of the original media file. You can set the frame rate as needed. To change the frame rate: 1. In the Workspace panel, select the Footage operator you want to change. Note: You can also select the Footage operator in the Footage Library. The Footage Controls panel appears. 2. Click the Source button. 3. Select a standard rate from the Frame Rate list. Frame Rate list 4. Use the Frame Rate field to set a custom value. You can set the frame rate of the footage to always match the file's frame rate by selecting From File from the Frame Rate list. If there is no frame rate embedded in the file, the From File option attempts to match the frame rate using the footage presets. For example, if a 640 x 480 file is imported, Combustion looks to its presets and finds the closest match, which is NTSC, and assigns a frame rate of 29.97 fps. If you plan to use footage of different frame rates in a composite (for example, a 25 fps image sequence in a 30 fps composite), there are two recommended options to ensure that no timing variances occur: • Nest the footage first, checking to make sure the frame rate of the nested composite matches the result composite, then apply your operators to the nested composite layer. • Set the Time Scale list to Local Time. Local Time displays the duration as the start and end points of the current operator in the viewport. (Global Time displays the duration of the highest level operator in the current branch, and displays the duration of all other operators in that branch relative to this time.) Changing the Pixel Aspect Ratio You can change the pixel aspect ratio of your footage. To change the pixel aspect ratio: 1. In the Workspace panel, select the Footage operator you want to change. Note: You can also select the Footage operator in the Footage Library. The Footage Controls panel appears. 2. Click the Source button. 3. Select a standard aspect ratio from the Pixel Aspect Ratio list. Mixing Frame Rates in a Composite For best results, all Footage operators used as layers in a composite should match the frame rate of the composite. Mixing footage of varying frames rates in a composite is allowed in Combustion; however, you may experience some minor timing/duration differences when applying some operators, such as Paint, to these layers. Pixel Aspect Ratio list 112

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Building Workspaces
4
112
Changing the Frame Rate
The Frame Rate field indicates the frame rate of the
footage. By default, it is set to the frame rate of the
original media file. You can set the frame rate as
needed.
To change the frame rate:
1.
In the Workspace panel, select the Footage
operator you want to change.
Note:
You can also select the Footage operator in
the Footage Library.
The Footage Controls panel appears.
2.
Click the Source button.
3.
Select a standard rate from the Frame Rate list.
4.
Use the Frame Rate field to set a custom value.
You can set the frame rate of the footage to always
match the file’s frame rate by selecting From File
from the Frame Rate list. If there is no frame rate
embedded in the file, the From File option
attempts to match the frame rate using the
footage presets. For example, if a 640 x 480 file is
imported,
Combustion
looks to its presets and
finds the closest match, which is NTSC, and
assigns a frame rate of 29.97 fps.
Mixing Frame Rates in a Composite
For best results, all Footage operators used as layers
in a composite should match the frame rate of the
composite. Mixing footage of varying frames rates
in a composite is allowed in
Combustion
; however,
you may experience some minor timing/duration
differences when applying some operators, such as
Paint, to these layers.
If you plan to use footage of different frame rates in a
composite (for example, a 25 fps image sequence in
a 30 fps composite), there are two recommended
options to ensure that no timing variances occur:
Nest the footage first, checking to make sure the
frame rate of the nested composite matches the
result composite, then apply your operators to the
nested composite layer.
Set the Time Scale list to Local Time. Local Time
displays the duration as the start and end points of
the current operator in the viewport. (Global Time
displays the duration of the highest level operator
in the current branch, and displays the duration of
all other operators in that branch relative to this
time.)
Changing the Pixel Aspect Ratio
You can change the pixel aspect ratio of your footage.
To change the pixel aspect ratio:
1.
In the Workspace panel, select the Footage
operator you want to change.
Note:
You can also select the Footage operator in
the Footage Library.
The Footage Controls panel appears.
2.
Click the Source button.
3.
Select a standard aspect ratio from the Pixel
Aspect Ratio list.
Frame Rate list
Pixel Aspect Ratio list