ludus::foundation::math::ProjectedPolygonInput¶

Struct

A convex planar polygon in the tangent space of a shading point.

The shading point is the origin and the shading normal is +z, the frame the paper shares with linearly transformed cosines (section 3.1). Coordinates need not be normalized. The polygon must be convex and planar with no three collinear vertices (paper section 3.1 and supplement A.2); these preconditions are not detected. Either winding is accepted: a polygon seen counterclockwise from the origin is mirrored internally (paper section 3.1).

Declared in modules/foundation/math/include/ludus/foundation/math/projected_solid_angle.hpp

#include <ludus/foundation/math/projected_solid_angle.hpp>

struct ludus::foundation::math::ProjectedPolygonInput final

Fields¶

PositionsTangent¶

Vector3 ludus::foundation::math::ProjectedPolygonInput::PositionsTangent[MAX_PROJECTED_POLYGON_INPUT_VERTICES][MAX_PROJECTED_POLYGON_INPUT_VERTICES] {}

Valid prefix of VertexCount positions relative to the shading point.

Related types: Vector3

Declared in modules/foundation/math/include/ludus/foundation/math/projected_solid_angle.hpp

VertexCount¶

uint32 ludus::foundation::math::ProjectedPolygonInput::VertexCount = 0

Number of vertices, MIN_PROJECTED_POLYGON_VERTICES through MAX_PROJECTED_POLYGON_INPUT_VERTICES.

Related types: uint32

Declared in modules/foundation/math/include/ludus/foundation/math/projected_solid_angle.hpp