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There are 4 add-on effects in FaceMixer: background (color and image), mask, foreground and light. Click the Effect button ()  to open the window below.

Background

As described in "How to Use 32-bit with Alpha Images", if the source images are 32-bit with alpha, the composite can be smoothly blended with any single color or any other image as a background. If the source images are not 32-bit (in most cases, you will find 24-bit images), you must first use a mask, otherwise, the background will be invisible.

1. Click the Select Effect button (), then choose an image file as the Background. A small thumbnail of this image will be show as the Effect Icon (), and the Effect Switch () will be checked to indicate the background is being used.

2. You may click the Set Effect Location button () to adjust the size and relative position of the Background effect. See more...

3. You may turn on/off the Effect Switch or click Effect Icon at anytime to enable or disable the Background effect.

4. You can double click the Effect Icon or click the Select Effect button again to load another image to see the effect.

5. If you do not want to use the Background displayed, right-click the Effect Icon or click the Clear Effect button () to clear it.

6. In addition, you can select a pure color as a backcolor. Notice that the background image may be blended with the BackColor. It's a useful way to change the hue of the background image.

7. Each effect has its own Effect Parameter (). You can adjust the background transparency.

Mask

The mask image should be 256 level grayscale bitmap. The brightness of every pixel of the mask image will be applied to the transparency of the corresponding pixel of the composite. That means a white pixel will cause the corresponding composite pixel to be opaque, a black pixel will cause a fully transparent pixel, and various levels of gray will cause corresponding levels of transparency. In a word, when you add a mask to a composite, the composite will take on the mask shape. You can adjust the mask intensity.

Foreground

The foreground should be a 32-bit with alpha image that you choose to overlay on the composite to make a photo frame, text caption or other such effect. You can adjust the foreground transparency.

Light

The light image should be a 256 level grayscale bitmap. The brightness of every pixel of the light image will be applied to the brightness of the corresponding pixel of the composite. That means a bright pixel will cause the corresponding composite pixel to be a little brighter, a dark pixel will cause the corresponding composite pixel to be a little darker. You can adjust brightness intensity and darkness intensity separately.

Remarks

Some outdated display drivers won't be able to render the add-on effects properly.

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