Class Camera

class Camera

Public Types

enum class Projection : uint8_t

Values:

enumerator PERSPECTIVE

enumerator ORTHOGRAPHIC

Public Functions

Camera()

CLASS_NO_COPY_MOVE(Camera)

~Camera()

void update(float deltaTime)

void attach()

inline void reApplyScissor()

Re-applies the scissor-area defined via the viewport.

This can be useful if you changed the scissor-area and now wish to reset it.

void setScreenArea(int x, int y, int width, int height)

inline void setPerspective(float newFov)

Switches the camera over to a perspective projection.

Parameters:

newFov – vertical fov in radians

inline void setOrthographic(float newOrthoSize)

Switches the camera over to an orthographic projection.

Parameters:

newOrthoSize – vertical half-size of the view volume in world units

inline void setProjection(Projection newProjection)

Switches between perspective and orthographic projection, keeping the settings (fov / ortho-size) of both.

inline Projection getProjection() const

void setLookAt(

const fm_vec3_t &newPos,

const fm_vec3_t &newTarget,

const fm_vec3_t &newUp = {0, 1, 0}

)

Sets new camera values based on a look-at transform.

If you have an arbitrary rotation based camera prefer using ‘setPosRot’.

Parameters:

• newPos – camera eye

• newTarget – camera target

• newUp – camera up vector (+Y by default)

void setPosRot(const fm_vec3_t &newPos, const fm_quat_t &rot)

Sets a new camera by position and rotation.

If you have a look-at based camera prefer using ‘setLookAt’.

Parameters:

• pos – camera eye

• rot – rotation

inline const fm_vec3_t &getTarget() const

inline const fm_vec3_t &getPos() const

inline fm_vec3_t getViewDir() const

inline const fm_mat4_t &getViewMatrix() const

inline const fm_vec3_t &getUp() const

fm_vec3_t getScreenPos(const fm_vec3_t &worldPos)

Public Members

float fov = {}

float near = {}

float far = {}

float aspectRatio = {}

float orthoSize = {}

Projection projection = {Projection::PERSPECTIVE}