FisheyeMaker

from panda3d.core import FisheyeMaker
class FisheyeMaker

Bases: Namable

This class is similar to CardMaker, but instead of generating ordinary cards, it generates a circular rose that represents the projection of a 3-D scene through a fisheye lens. The texture coordinates of the rose are defined so that each 2-D vertex has a 3-D UVW that reflects the corresponding position in 3-D space of that particular vertex.

This class is particularly suited for converting cube maps to sphere maps.

Inheritance diagram

Inheritance diagram of FisheyeMaker

__init__(*args, **kwargs)
generate()

C++ Interface: generate(const FisheyeMaker self)

/**

  • Generates a GeomNode that renders the specified geometry.

*/

reset()

C++ Interface: reset(const FisheyeMaker self)

/**

  • Resets all the parameters to their initial defaults.

*/

setFov()

C++ Interface: set_fov(const FisheyeMaker self, float fov)

/**

  • Specifies the field of view of the fisheye projection. A sphere map will

  • have a 360-degree field of view (and this is the default).

*/

setNumVertices()

C++ Interface: set_num_vertices(const FisheyeMaker self, int num_vertices)

/**

  • Specifies the approximate number of vertices to be used to generate the

  • rose. This is the approximate number of vertices that will be located

  • within the rose’s unit circle, not counting the inscribing square (if any).

  • The actual number of vertices used may be +/- 25% of this value.

*/

setReflection()

C++ Interface: set_reflection(const FisheyeMaker self, bool reflection)

/**

  • Sets the flag indicating whether the texture image should be mirrored

  • (true) or normal (false). When this is true, the 3-D texture coordinates

  • will be reversed so that the image is appropriate for a reflection. This

  • is the best choice for generating a sphere map from a cube map. The

  • default is false.

*/

setSquareInscribed()

C++ Interface: set_square_inscribed(const FisheyeMaker self, bool square_inscribed, float square_radius)

/**

  • Sets the flag that indicates whether the rose should be inscribed within a

  • square. When this is true, an additional square is generated to inscribed

  • the circular rose, with the indicated “radius” (the sides of the square

  • will be 2 * square_radius). The texture coordinates of the square will

  • uniformly map to the back pole of the cube map.

  • This is mainly useful to provide a good uniform background color for a

  • sphere map so that it does not have a sharp circular edge that might

  • produce artifacts due to numerical imprecision when mapping.

*/

set_fov()

C++ Interface: set_fov(const FisheyeMaker self, float fov)

/**

  • Specifies the field of view of the fisheye projection. A sphere map will

  • have a 360-degree field of view (and this is the default).

*/

set_num_vertices()

C++ Interface: set_num_vertices(const FisheyeMaker self, int num_vertices)

/**

  • Specifies the approximate number of vertices to be used to generate the

  • rose. This is the approximate number of vertices that will be located

  • within the rose’s unit circle, not counting the inscribing square (if any).

  • The actual number of vertices used may be +/- 25% of this value.

*/

set_reflection()

C++ Interface: set_reflection(const FisheyeMaker self, bool reflection)

/**

  • Sets the flag indicating whether the texture image should be mirrored

  • (true) or normal (false). When this is true, the 3-D texture coordinates

  • will be reversed so that the image is appropriate for a reflection. This

  • is the best choice for generating a sphere map from a cube map. The

  • default is false.

*/

set_square_inscribed()

C++ Interface: set_square_inscribed(const FisheyeMaker self, bool square_inscribed, float square_radius)

/**

  • Sets the flag that indicates whether the rose should be inscribed within a

  • square. When this is true, an additional square is generated to inscribed

  • the circular rose, with the indicated “radius” (the sides of the square

  • will be 2 * square_radius). The texture coordinates of the square will

  • uniformly map to the back pole of the cube map.

  • This is mainly useful to provide a good uniform background color for a

  • sphere map so that it does not have a sharp circular edge that might

  • produce artifacts due to numerical imprecision when mapping.

*/