How features and data are preserved when exporting a composition to XFL format
When a composition is exported as an XFL file, After Effects goes through multiple stages, attempting at each stage to export the maximum
amount of information from layers and their source files.
If the composition uses PNG, JPEG, and FLV files as the sources for its layers, these source files are included in the XFL output (passed through)
unless the layers use features that force After Effects to transcode the source files or rasterize the layers for export to XFL.
Transcoding is the conversion of a source file from one format to another format, such as from GIF to PNG. Rasterizing is the conversion of
a layer to a bitmap image, incorporating all of the model information—such as vectors and keyframes—into a flattened, pixel-based image for
each frame.
Stage 1: Source files are passed through unchanged, if possible.
For a layer’s source file to be passed through to the XFL file, the layer must meet these requirements:
The layer has a source footage item, and that footage item uses a PNG or JPEG sequence or FLV file as its source. (The layer is not a text
layer, camera layer, light layer, or shape layer.)
The source footage item’s frame rate matches the composition’s frame rate.
The layer’s source is not trimmed.
The layer does not extend before the first frame or after the last frame of the composition work area.
The layer has no properties other than Position, Anchor Point, Opacity, Scale, and Rotation. Because effects add properties to layers, this
requirement also means that the layer has no effects applied.
The layer does not have motion blur, frame blending, or time-remapping applied.
The layer does not have a track matte.
There is no adjustment layer above the layer.
Layers above do not use blending modes other than Normal.
The layer does not have the Preserve Transparency option set, nor does any layer above it.
The layer is not a 3D layer.
Stage 2: Remaining source files are converted to PNG sequences or FLV files, if possible.
If the only reason that a layer’s source file can’t be passed through to the XFL file is that it doesn’t use a PNG sequence, JPEG sequence, or FLV
file as its source, then the layer’s source is transcoded or rasterized to a PNG sequence or FLV file, which is included in the XFL file. In this case,
the layer’s Position, Opacity, Scale, and Rotation keyframes are preserved and converted to keyframes in the XFL output. If multiple layers use the
same source in After Effects and meet all of the other pass-through requirements listed above, they will also share a common source in the
document created in Flash Professional. Precompositions can be rasterized as source items.
The XFL file created from a composition preserves the animation information for the layers in the composition. Keyframes for the Position, Opacity,
Scale, and Rotation properties are converted to keyframes in Flash Professional, with one keyframe per frame for each animated property. Only
2D Position (x and y) keyframes and 2D (z) Rotation keyframes are converted.
In After Effects, the Anchor Point property can be animated, but the transformation point in Flash Professional can’t be animated. In Flash
Professional, the transformation point is located at the top-left corner of the symbol. Keyframe animations of transform properties (including Anchor
Point) in After Effects are converted to animations based around the transformation center in the exported XFL file.
Stage 3: Remaining layers are rasterized as individual layers, if possible.
If a layer doesn’t meet the requirements for its source file to be passed through, transcoded, or rasterized as a source item, then the layer itself
must be rasterized as a layer. Rasterizing a layer means that all of its keyframe information is lost—all of the information is contained in the
rasterized image frames themselves.
To be rasterized as an individual layer, a layer must meet these requirements:
Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.
Product:
Forumrules
To achieve meaningful questions, we apply the following rules:
First, read the manual;
Check if your question has been asked previously;
Try to ask your question as clearly as possible;
Did you already try to solve the problem? Please mention this;
Is your problem solved by a visitor then let him/her know in this forum;
To give a response to a question or answer, do not use this form but click on the button 'reply to this question';
Your question will be posted here and emailed to our subscribers. Therefore, avoid filling in personal details.
Register
Register getting emails for Adobe After Effects CC 2013 at:
new questions and answers
new manuals
You will receive an email to register for one or both of the options.
Get your user manual by e-mail
Enter your email address to receive the manual of Adobe After Effects CC 2013 in the language / languages: English as an attachment in your email.
The manual is 7,16 mb in size.
You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.
If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.
The email address you have provided is not correct.
Please check the email address and correct it.
Your question is posted on this page
Would you like to receive an email when new answers and questions are posted? Please enter your email address.
