Reference / Effects / Distortion
Updated
Polar coordinates
Polar coordinates is a Distortion effect.
What it does
Section titled “What it does”Converts a picture from rectangular coordinates to polar coordinates, and vice versa.
Parameters
Section titled “Parameters”| Parameter | Control | Range | Default | Unit |
|---|---|---|---|---|
| Conversion | Dropdown | Rectangular to polar · Polar to rectangular | Rectangular to polar | - |
| Interpolation | Slider | 0 to 100 | 100 | Per cent |
| Mix | Slider | 0 to 100 | 100 | Per cent |
| Blend | Dropdown | Normal · Darken · Multiply · Colour burn · Linear burn · Darker colour · Add · Lighten · Screen · Colour dodge · Lighter colour · Overlay · Soft light · Hard light · Linear light · Vivid light · Pin light · Hard mix · Difference · Exclusion · Subtract · Divide · Hue · Saturation · Colour · Luminosity | Normal | - |
| Matte | Layer | Any layer in the composition | None | - |
| Invert | Checkbox | On or off | Off | - |
| Channel | Dropdown | Luminance · Alpha · Red · Green · Blue | Luminance | - |
In the Effect Controls panel:
- Matte is an input to an effect, scaling the strength. Invert inverts the mattes for calculating strength.
What each control does
Section titled “What each control does”- Conversion: which conversion to do.
- Interpolation: how far between fully converting and not altering at all the effect is.
- Mix: how much of the result replaces the original.
- Matte and Invert drive the strength of the effect from another layer’s brightness; see Effects.