3D Compositing with Action > Action: Lights and Lighting Effects > Relighting: Image-Based Lighting (IBL) >
IBL Menu Settings

The settings in the IBL menu are as follows.

Mapping box
  Select the type of IBL texture mapping. Use the Map Convert tool to covert different mapping types.

IBL Type: | Description: | Example:
--- | --- | ---
Angular | Usually a high-dynamic picture of a mirrored ball. |
Cubic | A series of images shown as an unfolded cube displaying six sides of the image. |
Cylindrical | An image mapped onto an unfolder cylinder (also known as longitude and latitude maps). |

Light Probe Images courtesy of Paul Debevec, www.debevec.org

Use As Back button
  Enable to use the selected IBL map as the background in the scene.
FOV Offset field
  Displays the field of view offset applied to an IBL map that is used as a background. Use to simulate a zoom in or out of the background.
Regen button
  Enable to dynamically refresh the image as changes are made to the IBL settings.
Shading button
  Enable to light up the scene using added light sources. This same button can be found in the Light and Action Setup menus.
Intensity field
  Displays the overall brightness of the IBL map.
Softness X field
  Displays the amount of X-axis blur applied to the IBL map (not available when Cubic is chosen as the mapping type).
Softness Y field
  Displays the amount of Y-axis blur applied to the IBL map (not available when Cubic is chosen as the mapping type).
Diffuse Offset field
  Displays the offset based on an attached diffuse map or the existing diffuse light in the image.
Rotation X field
  Displays the level of rotation of the IBL map along the X axis.
Rotation Y field
  Displays the level of rotation of the IBL map along the Y axis.
Rotation Z field
  Displays the level of rotation of the IBL map along the Z axis.
Fit Method box
  Select a fit method option to be applied to the IBL map.
Keep Aspect button
  Enable to preserve the aspect ratio of non-square pixels (not available for the Fill fit method).
Use Cropped Size button
  Enable to replace the IBL map with the cropped size of the IBL media. Disable to use the cropped IBL media as is.
Filter box
  Select the type of filtering to apply to the IBL map.