Composite Paint Options - Adobe AFTER EFFECTS 7.0 Manual

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Composite Paint options

A. In Original (default setting), before painting
B. In Original, with paint stroke
C. In Original, with paint stroke and erasure stroke
stroke and the original image.
The original image on the layer does not appear in the working view; only paint strokes are shown. Erasures
D. Only
remove only paint, not the original image.
The original image is visible in the working view, similar to the In Original option. Painting and
E. Over Original
erasing occur as with the Only option: Erasing removes pixels from underlying paint strokes but does not alter the
original image.
The layer image is visible in the working view. Painting does not alter the original image; it affects
F. Under Original
only areas of the layer that are outside the original image. Erasures remove only paint pixels, not the original image.
The original image is not visible in the working view. Paint strokes are visible. Painting
G. Track Original Matte
affects only the area within the original image alpha channel (that is, paint applied within the original circle area).
Erasures remove only existing paint pixels.
H. Track Original Matte Visible
behave exactly as with Track Original Matte, so erasures do not affect the original image.
Before you paint, nothing is visible in working view. Paint strokes affect only the matte, revealing the
I. As Matte
underlying original image. Erasures add back areas of opacity, so that they appear to erase the underlying image
again. Both types of strokes are restricted to the area of the original alpha channel.
Before you paint, the original image is visible in the working view. Painting affects only areas
J. As Inverse Matte
within the original image alpha channel. Paint strokes block (rather than reveal) the original image, appearing to
erase the original image. Erasures remove only painting strokes, (that is, they re-reveal the underlying image within
the alpha channel).
The original image appears within its alpha channel in working view. Strokes affect the
K. In Original Alpha Only
alpha channel itself. Painting adds areas of opacity. Erasures add areas of transparency.
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The imported image is visible.
The paint strokes appear above the original image.
An erasure stroke removes underlying portions of both the paint
The original image is visible in the working view. Otherwise, Vector Paint strokes
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ADOBE AFTER EFFECTS 7.0 485
User Guide