Optics
Fisheye
Spherical distortion: three real projections, not a bulge filter.
Controls
- field
- How wide the lens looks, which is the only honest measure of distortion here. A lens bends exactly as far as it sees
- projection
- One of: equidistant, stereographic, orthographic.
- outside
- What fills the corners the round image never reaches: nothing, black like a circular fisheye, or the edge smeared out to fill the frame
- contrast
- A number from -1 to 1, 0 by default.