Autodesk 12812-051462-9011 User Guide 3 - Page 1637

channels that are available. See G-Buffer on page 7991. This parameter can be animated. The highlights are then only applied to areas of the geometry where that particular ID is present. NOTE In many instances, you may want to apply different highlight settings to different pieces of geometry or ID's. To accomplish this, add additional Lens Effects Highlight entries to the Video Post queue. Then set each different Highlight entry to effect a different Effect or Object ID and proceed. Unclamped An unclamped color is brighter than pure white (255,255,255). 3ds Max keeps track of these "hot" areas which tend to show up when your scene contains bright metallic highlights or explosions. This spinner lets you determine the lowest pixel value that is highlighted. Pure white has a pixel value of 1. When this spinner is set to 1, any pixels with a value above 255 will be glowed. You can invert this value by clicking the I button to the right of the spinner. This parameter can be animated. Surf Norm Highlights part of an object, based on the angle of the surface normal to the camera. A value of 0 is coplanar, or parallel to the screen. A value of 90 is normal, or perpendicular to the screen. If you set Surf Norm to 45, only surfaces with normal angles greater than 45 degrees will be glowed. You can invert this value by clicking the I button to the right of the spinner. This parameter can be animated. Mask Highlights the mask channel of an image. The spinner value represents the level of grayscale present in a Mask. When this is set, any part of the Mask images larger than the set value will be glowed in the final image. You can invert this value by clicking the I button to the right of the spinner. This parameter can be animated. Range = 0 to 255. Alpha Highlights the alpha channel of an image. The transparency of an alpha channel is interpreted opposite that of the Mask channel. Values range from 0 to 255. This parameter can be inverted by clicking the I button to the right of the spinner, and can also be animated. Z Buffer Hi and Lo Highlights objects based on their distance (Z-Buffer distance) from the camera. The Hi value is the maximum distance and the Lo value is the minimum. Any objects between these two Z-Buffer distances will be highlighted. These parameters can be animated. Filter group Filters the Source selections to let you control how the highlight is applied. For example, you can have ten spheres in your scene, each with the same 6892 | Chapter 22 Video Post