# Image Buffer Editor#

The Image Buffer Editor is a widget dedicated to create and manage image buffers.

Image Buffer Editor

(1) Add Buffer (2) Remove Buffer (3) Selected Buffer Name (4) Arrange Hierarchically (5) Layer Description (6) Opacity Blending Mode (7) Layer Output Pixel Format (7) Channel Name (9) Visual Hint Mode

To add a new empty image buffer press Add Buffer (1). This will create a new empty image buffer named new_layer.

To rename the buffer just change its name using the text edit (3). Please note, image buffer names must be unique. You can't have 2 buffers sharing the same name.

To Add a new channel, press the $$+$$ button next to the channel name.

To rename the channel name, just use the text edit (8).

Existing channels can be removed using the $$-$$ button.

To remove a buffer, just select it then press Remove Buffer (2).

Image Buffers that are greyed out are built-in image buffers. They cannot be edited or deleted.

Note

Modifications are only applied when you press Ok.

## Hierarchical Display#

Image Buffers can be displayed as a tree in the AOV Editor. To display an image buffer as a tree in the AOV Editor, just check Arrange Hierarchically (5) button. The AOV Editor will use the _ in the name as a separator so that my_custom_aov1 and my_custom_aov2 will be displayed:

## Output Pixel Format#

The Output Pixel Format sets how the image buffer should be stored in the output image files. Internally image buffers are stored in 32-bit float.

## Opacity Blending Mode#

It is possible to control how subsamples are blended together during rendering.

Mode Description
Use Opacity Integrates each subsamples like the beauty
Use First value Only writes the first subsample
Use Last Value Only writes the last subsample
Use Min Value Only writes the subsample with the smallest value
Use Max Value Only writes the subsample with the largest value

## Visual Hint Mode#

It is possible to bind visual hints to image buffers or AOVs using the Image Buffer Editor. The Image View uses this information to apply the proper real-time display filter when showing an AOV.

To attach a Visual Hint to an image buffer or AOV, just set the Visual Hint Mode you wish to use.

Mode Description
Color Display colors. This is the default mode. Please note that the display LUTs are only applied in this mode.
Raw Display the raw information as RGB. No processing or LUT is performed.
Black And White Display as greyscale.
Black And White (Normalized) Normalize (minimum is remapped to 0.0 and max to 1.0) the current input image and displays it as grayscale. This mode is typically useful for depth type of AOVs
Heat Map Displays the input image as a heat map. A heat map is a blue to green to red gradient. Note values at 1.0 are displayed as pure white.
Heat Map (Normalized) Normalize (minimum is remapped to 0.0 and max to 1.0) the current input image and displays it as a heat map. This mode is typically useful when displaying sampling related diagnostic AOVs. Note that unlike the Heat Map mode, maximum values are displayed as pure red.
Normal Add 1 and multiply the value per 0.5