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3Delight for Maya (RenderMan) > The Light Attribute Node > LAN_MotionBlur.jpg

The Transformation Blur attribute specifies if the light should be motion blurred. If it should, this is done when generating the shadow map by applying a transformation blur to either:

a virtual camera derived from the attached light’s position and orientation (the most common case);
or a camera explicitly specified using the Camera attribute in the Shadow Maps group of light attributes.

Note that this attribute is ignored unless the "Generate With Motion Blur" attribute is turned on. The available options are detailed below.

Value	Description
Off	No transformation blur will be applied to the shadow map camera, regardless of the Transformation Blur rendering attribute setting. This is the default.
On	Transformation blur will be applied to the shadow map camera, even if the Transformation Blur rendering attribute is turned off. The number of samples is determined by the Transformation Samples attribute specified in the Motion Blur group or rendering attributes. This value has no effect if "Generate With Motion Blur" is turned off.
Inherit	Transformation blur will be applied to the shadow map camera according to the Transformation Blur attribute in the Motion Blur group of rendering attributes. The number of samples is determined by the Transformation Samples attribute of the same group. This value has no effect if "Generate With Motion Blur" is turned off.