camera.h File Reference

Camera definition and helper functions for view setup. More...

#include <scimesh/types.h>
#include <scimesh/scene.h>

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Classes
struct	scimesh::Camera
	A virtual camera that defines the viewpoint for rendering. More...

Namespaces
namespace	scimesh

Enumerations
enum class	scimesh::ProjectionType { scimesh::ORTHOGRAPHIC , scimesh::PERSPECTIVE }
	The type of 3D→2D projection used by the camera. More...

Functions
float	scimesh::perp_extent_radius (const Vec3 &bmin, const Vec3 &bmax, const Vec3 &center, const Vec3 &dir, float fov_radians, float *out_dist=nullptr)
	Compute the "perpendicular extent radius" of an axis-aligned bounding box relative to a view direction.
float	scimesh::max_ortho_extent (const Vec3 &bmin, const Vec3 &bmax, const Vec3 &center, const Vec3 &dir)
	Compute the maximum perpendicular extent of an AABB from a view ray (for orthographic projection framing).
Camera	scimesh::camera_look_at (const Vec3 &center, float radius, const Vec3 &direction, const Vec3 &up, float fov_degrees, float margin=1.1f, ProjectionType projection=ProjectionType::PERSPECTIVE)
	Create a camera that looks at a point from a given distance and direction.
Camera	scimesh::camera_fit_scene (const Scene &scene, const Vec3 &direction, const Vec3 &up, float fov_degrees, float margin=1.1f, ProjectionType projection=ProjectionType::PERSPECTIVE)
	Create a camera that automatically frames an entire Scene.
Camera	scimesh::camera_fit_mesh (const Mesh &mesh, const Vec3 &direction, const Vec3 &up, float fov_degrees, float margin=1.1f, ProjectionType projection=ProjectionType::PERSPECTIVE)
	Create a camera that automatically frames a single Mesh.
Camera	scimesh::camera_orbit (const Camera &camera, const Vec3 &axis, float angle_degrees)
	Orbit the camera around its look-at point.

Detailed Description

Camera definition and helper functions for view setup.

The camera controls what part of the 3D scene is visible and how it is projected onto the 2D image. scimesh supports two projection types: perspective (realistic, with foreshortening) and orthographic (flat, no perspective, useful for technical diagrams).

Definition in file camera.h.