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Hiding Shading Artifacts with AppBorder Plugin

The AppBorder plugin is used to hide the SSAO/SSDO shading artifacts at the screen edges.

The plugin performs the following:

  1. Recalculates the size of the image displayed in the current viewport as follows:

    image_width = window_width + border × 2
    image_height = window_height + border × 2
    Notice
    Here border is a size of the border specified on the application start-up or set via the engine.border.setBorder() function.
  2. Renders the image of the recalculated size into the internal buffer.
  3. Crops the image size to the size of the window (window_width and window_height) with the border offset.

The following pictures demonstrate how the AppBorder plugin can improve quality of the SSAO effect at the screen edges. Notice the shading difference at the bottom of each picture: on the right picture the SSAO effect is more correct.

Border = 0
Border = 50

See Also

Launching AppBorder

To use this plugin, specify the extern_plugin command-line option together with the required start-up options on the application start-up, for example:

Shell commands
main_x86d -data_path "../" -extern_plugin AppBorder
				

AppBorder Options

The following CLI options can be specified on the application start-up:

  • border - size of the border.
    Notice
    Large values should be set carefully.
    Shell commands
    main_x86d -data_path "../" -extern_plugin AppBorder -border 50
    							
Last update: 2017-07-03