5.10. Spherize

5.10.1. Overview

This filter creates a kind of bubble whose size is that of the image or selection, as if the content was wrapped around a sphere.

Figuur 17.70. Spherize filter example, with default values

Spherize filter example, with default values

Original image

Spherize filter example, with default values

Spherize filter applied


5.10.2. Starting filter

You can find this filter through FiltersDistortsSpherize…

5.10.3. Options

Figuur 17.71. Spherize filter options

Spherize filter options

Presets, Preview, Split view
[Opmerking] Opmerking

These options are described in Paragraaf 2, “Common Features”.

Mode
  • Radial is the default mode. See example above.

  • Horizontal: as if image was mapped on a vertical cylinder.

  • Vertical: as if image was mapped on a horizontal cylinder.

Angle of view

Camera angle of view (0 - 180°)

Curvature

Spherical cap angle, as a fraction of the co-angle (complement angle) of view. Result is less domed as curvature decreases (100% - 0).

Amount

Interesting for negative values, which result in a hollow instead of a bump (from 1.000 to -1.000).

Resampling methods

These interpolation methods are described in Interpolatie.

Use the selection as input, Use the entire layer as input

These options are common to GEGL-based filters. Please refer to Paragraaf 2, “Common Features”.

5.10.4. Using Spherize filter

Drawing a selection before applying filter allows you to create another shape, such as a sphere: select Ellipse tool with the Fixed option checked; draw a circle; apply Spherize filter with the Use the selection as input selected. Invert selection and fill it with wanted background.