Create custom spot light decay
An
intensity curve or an expression can be used to control decay. You
can also create a custom brightness decay rate using an intensity
curve. You can edit curves in the Expression or Graph editors.
For more information about the Expression or Graph editors,
search the Maya Help.
To
create a custom brightness decay
- In
the Light Effects section of the
spot light’s Attribute Editor, click the Create button
beside the Intensity Curve attribute.
Maya creates an Intensity Curve node
and connects it to the Intensity attribute.
- Turn
on Light Direction Only in the Attribute
Editor that appears.
Create custom spot light color decay
You can create a custom color decay rate using
a set of color curves (a red curve, a green curve, and a blue curve).
To
create a custom color decay
- In
the Light Effects section of the
spot light’s Attribute Editor, click the Create button
beside the Color Curves attribute.
- Turn
on Light Direction Only in the Attribute
Editor that appears.
Maya creates a Red Curve node,
a Green Curve node, and a Blue
Curve node and connects them to the Color attribute.
Edit custom intensity and color decay
You can edit intensity curves or a set of color
curves either in the Attribute Editor or in the Graph
Editor. Intensity or color curves display as a table
of values in the Attribute Editor.
To
view the table for an Intensity Curve in
the Attribute Editor
- Click
the box next to the Create button.
To
view the attribute table for Color Curves and
the Intensity curve (after you
create them)
- Select
the spot light in the view.
TipWhen creating intensity and color curves
for a light source, IPR Render the scene or part of the scene to
get instant feedback on the changes you make to the light’s intensity
and color curves.
To
work with Intensity or Color
curves in the Graph Editor
- To adjust the Intensity or Color
Curves interactively, select the spot light and open
the Graph Editor (
Window > Animation Editors
> Graph Editor). An
intensity curve appears as a dark blue line, and color curves display
as red, green, and blue lines.
- To
edit points or entire curves, use the Graph editor.
For more information on the Graph editor,
see the Animation guide.