.PP
The "Input" subform allows you to input new VIFF files to be used with animate.
.sp
.IP "1. Image"
This field allow the use to input a new image for sequencing. The new input
image may be either typed in or be set by the file browser. The 
file browser is activated by clicking the left mouse button on the
"Image" label. If the browser is used to enter the filename, simply wait
for the initial image to be read in.  If manually entering the filename
into the parameter box next to the "Image" label, hit <cr> when the file
appears correctly.  Remember that an input image to animate must be a 
multiband VIFF image.
.IP "2. Basename"
If you do not have a multiband image for input to animate, you may instead
provide a basename that specifies a group of single band images that can
be used with animate.  Note that images will be taken in alphabetical order,
so if you have a group of more than 9 but less than 100 images, all named, 
for example, image.x where x is the sequence order, you will have to make 
sure that x starts with "01" through "09".  This is because 
\fIalphabetically\fP, image.1 will be followed by image.10 and
image.2 will be followed by image.20 unless you follow the preceding 
naming convention.  
.IP "3. Clip Mask"
If desired, a bit image may be input and used as a clip mask.
When an image is used as a clip mask for the currently displayed image,
the only part of the animated data that will appear normally
is that part defined by the pixels in the clip mask image that have a value
of (1). All other parts of the current frame will appear in the background
color of the image window. Images work best as clip masks when they are the
same size as the input data.  \f(CW$KHOROS_HOME/data/masks/\fP contains two
images that make good clip masks. 
To get a clip mask to go away, NULL out the "Clip Mask" parameter, and hit
<cr>.
.IP "4. Shape Mask"
If desired, a bit image may be provided to act as a shape mask. When an image
is used as a shape mask for the currently displayed image, the only part of the
currently displayed image that will be visible is that part defined by the
pixels in the shape mask image that have a value of (1).  All other parts of
the currently displayed image will "disappear", and the background (the part
of the screen behind the image  display window) will show through.
.IP
Images work best as shape masks when they are the same size as the input data.  
\f(CW$KHOROS_HOME/data/masks/\fP contains two images that make good shape masks.
To get a shape mask to go away, NULL out the "Shape Mask" parameter, and hit
<cr>.  You may have to hit the <cr> key twice.
WARNING: Only very simple bit images should be used as shape masks.  
For example, the bit image \f(CWKHOROS_HOME/data/masks/ball.bit\fP
is a good shape mask. As more complicated images are used (images with many 
"holes" in them), animate will become incredibly slow as the X server  has to 
do much additional work in order to map the image to the window.  WARNING: 
this feature will only work on X servers that support X11 R4.


