DEPRECATED. This shader is unsupported, but it may still get installed with Softimage to provide compatibility with older scenes that
use it. It is recommended that you replace unsupported shaders in your scenes with equivalent shaders from the current Softimage
shader library.
| Render Tree Usage
Category: Lens
Lens
Output: Color (RGB) value
Creates a lens flare using the illumination from a selected light source(s). Emulates several different flares, based on lens
type and focus. The flare's brightness and saturation can also be defined, as well as which light(s) will flare.
Tips
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If you select a non-0 virtual radius, the camera's origin is moved randomly within this radius and the light's intensity is
sampled repetitively. This way, normal point lights can be made to appear to have a finite radius when they disappear behind
objects.
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You can also use the Focus Pull parameter to animate the flares. This parameter causes the flare components to change their
relative position and rotate as the lens's optics readjust.
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To apply different flare effects on different lights, apply this shader multiple times to the same camera and select a different
light each time.
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The shader's name. Enter any name you like, or leave the default.
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Lets you define a light in your scene that will be used to compute the fast lens effect.
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Flare Type
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Each lens type corresponds to a different geometric characteristic of a lens. Lenses 1 and 2 create colorful and dazzling
lens flares (when viewed in white light), and lens 3 gives an iris flare, resulting from the hexagonal shape of the aperture.
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Defines the flare colors. At 0, the flares change to gray scale. Very useful for fine-tuning a flare's color.
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Defines the brightness or intensity of the lens flare.
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Defines how often the lights are sampled. Very useful in reducing render times for area lights.
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Lets the lights fade out along with their flare. Unless 0 is selected, the light is given a virtual radius; i.e., non-area
lights, such as spotlights, can be partly obscured by objects in the scene, and the flare is diminished accordingly.
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Renders only the flare on a black background. Saves rendering time and makes image composition easier later.
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Allows a lens flare to be animated. The effect's individual components rotate and translate to simulate the realignment of
the camera optics. You can also use this parameter to select a specific configuration in the flare pattern.
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Defines a rectangle around the view plane with the width equal to the margin. The flare intensity falls off linearly within
this region. This parameter blocks out direct rays from light sources outside the view angle. In screen space, this means
that light(s) outside the view area should not cause lens effects. In reality, a lens guard isn't perfect, and when a light
is nearly within view, it will cause lens effects.
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Causes a lens flare to take the underlying color into account and tries to ensure that the result does not exceed the maximum
color intensity. If both the rendered flares and the underlying scene do not exceed this intensity, the result is guaranteed
not to exceed either.
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Render Tree Usage
This shader can be applied directly to the camera in the lens shader stack.