Autodesk 12812-051462-9011 User Guide 3 - Page 1627

However, now that Glow knows where the pixels are that can be glowed, it needs to know which ones to actually apply the Glow to. Glow uses the filter controls to find out which source pixels to apply a glow to. All Selects all source objects in the scene and applies a glow to them. Edge Selects all source objects along a boundary edge and applies a glow to them. Applying a glow along the edges of objects produces a soft halo that exists on both inside and outside edges of your object. Perimeter Alpha Applies a glow only to the perimeter of an object based on its alpha channel. Selecting this option glows only the outside of an object without any spill on the interior. Perimeter Alpha keeps all the edges clean because it relies on the scene alpha channel for its effect. Perimeter Applies glow effect only to the perimeter of an object based on Edge inferencing. Although not as precise as Perimeter Alpha, you might need to use the Perimeter option at times when the alpha channel is unavailable. Bright Filters the source objects based on their brightness values. Only objects with a brightness above the spinner setting are selected and glowed. This option can be inverted. This parameter can be animated. Hue Filters the source objects by their hue. Select the hue by clicking the color swatch next to the spinner. The spinner beside the Hue color swatch lets you enter a variance level so that the glow can find several different hues in the same range as the chosen color. This parameter can be animated. Range = 0 to 255. Glow Preferences Video Post toolbar > Add Image Filter Event > Choose Lens Effects Glow from Filter Plug-In list. > Setup > Preferences tab Glow Preferences define the size of the glow, its occlusion, and whether or not it affects the Z-Buffer or alpha channels. 6882 | Chapter 22 Video Post