Nadir Patch

Nadir Patch

In: 3D View/HDRI Tools



This node provides functionality to patch over the central ground point (nadir) of a spherically mapped image. It can be used to hide or "clone out" an ugly nadir, or visible camera or tripod. It works like a Clone Patch, but with adjustments for spherically mapped images. The user selects a point elsewhere in the image, that is the cloned and blended in at the nadir. No other external inputs are required other than a single HDRI to process, but an external mask can be used as alpha for the patch effect.

effect can be quickly checked and validated with Nadir Extract.


  • Input: Color Input
  • Mask Input: Grayscale Input
    Optional mask slot used for masking the patch. Function like an alpha.


  • Enable: False/True
    Enable or disable patching effect.
  • Show Frames Helper: False/True
    Show or hide the helper lines, for debug purposes.
  • Frame Thickness: 0.0 - 1.0
    Thickness of helper lines.
  • Patch Scale: 0.0 - 1.0
    Global, uniform scale of patch. Affects both source and target.
  • Patch Size: 0.0 - 1.0
    Non-uniform size of patch.
  • Patch Rotation: 0.0 - 1.0
    Rotation of the patch. Affects source and target.
  • Patch Alpha: Smooth Square, Gaussian, Mask Input
    Set what alpha is used to blend the patch with the background.
  • Patch Hardness: 0.0 - 1.0
    Set hardness/contrast of alpha.
  • Source Rotation Offset: 0.0 - 1.0
    Rotation only for source of the patch.
  • Position Coordinates
    • Source Position:
      Position of source. Has handle in 2D view.
    • Patch Position
      Position of target. Has handle in 2D view.

Example Images