8

Image Input Options 343
you also use it to synchronize the Image Input
event with the frame sequence of video output.
ThesamedialogappearswhenyouclickOptions
from the Mask area of the Filter Event and Layer
Event dialogs.
Pr ocedur es
To align the input image, do one of the following in
the Image I nput Options di alog:
• Choose Presets and then click one of the preset
alignment buttons.
• Choose Coordinates and then e nter the X,Y
coordinates for the image’s location.
The upper-left corner is (0,0) for both the input
image and the output frame. Increasing X
moves the image to the right, and increasing Y
moves t he image down. Negative values move
theimageintheoppositedirection. XandY
values specify pixels.
To set the input ima ge size, d o one of the followi ng
in t he I mage Inpu t Opt i ons di a log:
• Choose Do Not Resize to maintain the image’s
original resolution.
• ChooseResizetoFittochangetheimagesizeto
match the output f rame.
This can change the image resolution, causing
it to be rescaled for every frame.
• ChooseCustomSizeandthenenterthewidth
and height of the image in t he output frame.
To control play back of an a nimated i mage:
1.
In the Frames group, set the From, To and Step
values.
2. Select Loop at the End if you want the animation
to repeat. Clear Loop at the End if you want the
animation to stop after playback.
This option applies only when the input
animation is shorter than the final video.
Interfa ce
Alignment group
Presets—Positions the image according to one of
the preset buttons: Top-left, Center, Top-rig ht, and
so on. Mutually exclusive w ith Coordinates.
Coordi nates—Positions the image according to
coordinates you enter. Mutually exclusive with
Presets.
Size group
Do Not Res ize—Retains the image’s original, stored
dimensions.
Resize to Fit—Resizes the image to the size of the
Video Post rendered image (default).
Custom Size—Resizes the image according to width
and height units you enter.
Frames group
From/To—Specifies the range of frames to use if the
image input file is an animation or v ideo.
Step—Sets the interval between the frames you
want to use. For example, if this spinner is set to 7,
3ds Max uses every seventh frame.
Loop a t End—Plays the frames from the beginning
when the last frame is reached. This will take effect