Autodesk 663B1-05A111-1001 User Guide - Page 446

14 | Basics Nodes Reference > Camera node Transparency Based Depth Turns on Threshold, which determines which object is closest to the camera, based on transparency. Transparency Based Depth is only enabled when you select Closest Visible Depth. Tip When transparent objects are located in front of other objects, you can turn on Transparency Based Depth to ignore the transparent object. Threshold Used when compositing multiple layers of transparency (which varies from 0 to 1). For example, if Threshold is 0.9 (the default), when transparent surfaces add up to 0.9 or larger, the surface becomes opaque. Environment Control the appearance of the scene's background as seen from the camera. Different cameras can use different backgrounds. Background Color The color of the scene's background. The default color is black. Image Plane Creates an image plane and attaches it to the camera. Clicking the Create button automatically changes the focus of the Attribute Editor to include attributes for an image plane. See the Rendering book for details about Image Plane attributes. Special Effects Shutter Angle Controls the blurriness of motion blurred objects. In a real-world camera, the shutter is actually a metal disk that is missing a pie-shaped section. This disk sits between the lens and the film, and rotates at a constant rate. When the missing section is in front of the film, it allows light from the lens to pass through and expose the film. The larger the angle of the pie-shaped section, the longer the exposure time, and moving objects are more blurred. Shutter Angle is measured in degrees. The valid range is 1 to 360. The default value is 144. Note Motion Blur must be on in the Render Settings window and in at least one object's Attribute Editor for the Shutter Angle to have any effect. Basics 446