#include <KX_Camera.h>

Inheritance diagram for KX_Camera:

Public Types
enum	{ INSIDE, INTERSECT, OUTSIDE }
Public Member Functions
	KX_Camera (void *sgReplicationInfo, SG_Callbacks callbacks, const RAS_CameraData &camdata, bool frustum_culling=true, bool delete_node=false)
virtual	~KX_Camera ()
virtual CValue *	GetReplica ()
virtual void	ProcessReplica ()
MT_Transform	GetWorldToCamera () const
MT_Transform	GetCameraToWorld () const
void	CorrectLookUp (MT_Scalar speed)
const MT_Point3	GetCameraLocation () const
const MT_Quaternion	GetCameraOrientation () const
void	SetProjectionMatrix (const MT_Matrix4x4 &mat)
void	SetModelviewMatrix (const MT_Matrix4x4 &mat)
const MT_Matrix4x4 &	GetProjectionMatrix () const
bool	hasValidProjectionMatrix () const
void	InvalidateProjectionMatrix (bool valid=false)
const MT_Matrix4x4 &	GetModelviewMatrix () const
float	GetLens () const
float	GetScale () const
float	GetCameraNear () const
float	GetCameraFar () const
float	GetFocalLength () const
RAS_CameraData *	GetCameraData ()
int	SphereInsideFrustum (const MT_Point3 &center, const MT_Scalar &radius)
int	BoxInsideFrustum (const MT_Point3 *box)
bool	PointInsideFrustum (const MT_Point3 &x)
bool	GetFrustumCulling () const
void	EnableViewport (bool viewport)
void	SetViewport (int left, int bottom, int right, int top)
bool	GetViewport () const
int	GetViewportLeft () const
int	GetViewportBottom () const
int	GetViewportRight () const
int	GetViewportTop () const
virtual int	GetGameObjectType ()
Protected Member Functions
void	ExtractClipPlanes ()
void	NormalizeClipPlanes ()
void	ExtractFrustumSphere ()
MT_Vector4 *	GetNormalizedClipPlanes ()
Protected Attributes
RAS_CameraData	m_camdata
MT_Matrix4x4	m_projection_matrix
MT_Matrix4x4	m_modelview_matrix
bool	m_dirty
bool	m_normalized
MT_Vector4	m_planes [6]
bool	m_frustum_culling
bool	m_set_projection_matrix
MT_Point3	m_frustum_center
MT_Scalar	m_frustum_radius
bool	m_set_frustum_center
bool	m_delete_node
Friends
class	KX_Scene

Detailed Description

Definition at line 53 of file KX_Camera.h.

Member Enumeration Documentation

anonymous enum

Enumerator:

INSIDE
INTERSECT
OUTSIDE

Definition at line 150 of file KX_Camera.h.

Constructor & Destructor Documentation

KX_Camera::KX_Camera	(	void *	sgReplicationInfo,
		SG_Callbacks	callbacks,
		const RAS_CameraData &	camdata,
		bool	frustum_culling = `true`,
		bool	delete_node = `false`
	)

Definition at line 42 of file KX_Camera.cpp.

References m_modelview_matrix, KX_GameObject::m_name, m_projection_matrix, and MT_Matrix4x4::setIdentity().

Referenced by GetReplica().

KX_Camera::~KX_Camera ( ) [virtual]

Definition at line 64 of file KX_Camera.cpp.

References m_delete_node, KX_GameObject::m_pSGNode, and NULL.

Member Function Documentation

int KX_Camera::BoxInsideFrustum ( const MT_Point3 * box )

Tests the given eight corners of a box with the view frustum.

Parameters:

box	a pointer to eight MT_Point3 representing the world coordinates of the corners of the box.

Returns:: INSIDE, INTERSECT, or OUTSIDE depending on the box's relation to the frustum.

Definition at line 381 of file KX_Camera.cpp.

References ExtractClipPlanes(), INSIDE, INTERSECT, m_planes, OUTSIDE, and p.

Referenced by KX_Scene::MarkVisible().

void KX_Camera::CorrectLookUp ( MT_Scalar speed )

Not implemented.

Definition at line 109 of file KX_Camera.cpp.

void KX_Camera::EnableViewport ( bool viewport )

Sets this camera's viewport status.

Definition at line 444 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_viewport.

void KX_Camera::ExtractClipPlanes ( ) [protected]

Extracts the camera clip frames from the projection and world-to-camera matrices.

Definition at line 231 of file KX_Camera.cpp.

References m_dirty, m_modelview_matrix, m_normalized, m_planes, and m_projection_matrix.

Referenced by BoxInsideFrustum(), GetNormalizedClipPlanes(), PointInsideFrustum(), and SphereInsideFrustum().

void KX_Camera::ExtractFrustumSphere ( ) [protected]

Extracts the bound sphere of the view frustum.

Definition at line 269 of file KX_Camera.cpp.

References MT_Point3::distance(), MT_Vector3::dot(), F, fabs(), GetCameraToWorld(), i, MT_Matrix4x4::invert(), MT_Vector2::length(), m_frustum_center, m_frustum_radius, m_projection_matrix, m_set_frustum_center, N, KX_GameObject::NodeGetWorldScaling(), MT_Tuple3::setValue(), and MT_Tuple4::setValue().

Referenced by SphereInsideFrustum().

RAS_CameraData * KX_Camera::GetCameraData ( )

Gets all camera data.

Definition at line 226 of file KX_Camera.cpp.

References m_camdata.

Referenced by KX_LightObject::BindShadowBuffer(), ImageRender::Render(), KX_Dome::RotateCamera(), and KX_CameraIpoSGController::Update().

float KX_Camera::GetCameraFar ( ) const

Gets the far clip distance.

Definition at line 214 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_clipend.

Referenced by BL_ConvertBlenderObjects(), KX_Dome::CalculateFrustum(), and ImageRender::Render().

const MT_Point3 KX_Camera::GetCameraLocation ( ) const

Definition at line 115 of file KX_Camera.cpp.

References KX_GameObject::NodeGetWorldPosition().

Referenced by KX_Scene::MarkVisible().

float KX_Camera::GetCameraNear ( ) const

Gets the near clip distance.

Definition at line 207 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_clipstart.

Referenced by BL_ConvertBlenderObjects(), KX_Dome::CalculateFrustum(), and ImageRender::Render().

const MT_Quaternion KX_Camera::GetCameraOrientation ( ) const

Definition at line 130 of file KX_Camera.cpp.

References MT_Matrix3x3::getRotation(), and KX_GameObject::NodeGetWorldOrientation().

MT_Transform KX_Camera::GetCameraToWorld ( ) const

Definition at line 102 of file KX_Camera.cpp.

References KX_GameObject::NodeGetWorldOrientation(), and KX_GameObject::NodeGetWorldPosition().

Referenced by ExtractFrustumSphere().

float KX_Camera::GetFocalLength ( ) const

Gets the focal length (only used for stereo rendering)

Definition at line 219 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_focallength.

bool KX_Camera::GetFrustumCulling ( ) const

Gets this camera's culling status.

Definition at line 439 of file KX_Camera.cpp.

References m_frustum_culling.

Referenced by KX_Scene::MarkVisible().

virtual int KX_Camera::GetGameObjectType ( ) [inline, virtual]

Reimplemented from SCA_IObject.

Definition at line 274 of file KX_Camera.h.

References SCA_IObject::OBJ_CAMERA.

float KX_Camera::GetLens ( ) const

Gets the aperture.

Definition at line 195 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_lens.

Referenced by ImageRender::Render().

const MT_Matrix4x4 & KX_Camera::GetModelviewMatrix ( ) const

Gets the modelview matrix that is used by the rasterizer.

Warning:: If the Camera is a dynamic object then this method may return garbage. Use GetCameraToWorld() instead.

Gets the modelview matrix that is used by the rasterizer.

Definition at line 175 of file KX_Camera.cpp.

References m_modelview_matrix.

MT_Vector4* KX_Camera::GetNormalizedClipPlanes ( ) [inline, protected]

return the clip plane

Definition at line 141 of file KX_Camera.h.

References ExtractClipPlanes(), m_planes, and NormalizeClipPlanes().

Referenced by KX_Scene::CalculateVisibleMeshes().

const MT_Matrix4x4 & KX_Camera::GetProjectionMatrix ( ) const

Gets the projection matrix that is used by the rasterizer.

Definition at line 165 of file KX_Camera.cpp.

References m_projection_matrix.

Referenced by ImageRender::Render(), and KX_Dome::RenderDomeFrame().

CValue * KX_Camera::GetReplica ( void ) [virtual]

Inherited from CValue -- return a new copy of this instance allocated on the heap. Ownership of the new object belongs with the caller.

Reimplemented from KX_GameObject.

Definition at line 75 of file KX_Camera.cpp.

References KX_Camera(), and ProcessReplica().

float KX_Camera::GetScale ( ) const

Gets the ortho scale.

Definition at line 200 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_scale.

Referenced by ImageRender::Render().

bool KX_Camera::GetViewport ( ) const

Gets this camera's viewport status.

Definition at line 457 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_viewport.

Referenced by ImageRender::calcImage(), KX_KetsjiEngine::GetSceneViewport(), KX_KetsjiEngine::Render(), and KX_KetsjiEngine::RenderDome().

int KX_Camera::GetViewportBottom ( ) const

Gets this camera's viewport bottom.

Definition at line 467 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_viewportbottom.

Referenced by KX_KetsjiEngine::GetSceneViewport().

int KX_Camera::GetViewportLeft ( ) const

Gets this camera's viewport left.

Definition at line 462 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_viewportleft.

Referenced by KX_KetsjiEngine::GetSceneViewport().

int KX_Camera::GetViewportRight ( ) const

Gets this camera's viewport right.

Definition at line 472 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_viewportright.

Referenced by KX_KetsjiEngine::GetSceneViewport().

int KX_Camera::GetViewportTop ( ) const

Gets this camera's viewport top.

Definition at line 477 of file KX_Camera.cpp.

References m_camdata, and RAS_CameraData::m_viewporttop.

Referenced by KX_KetsjiEngine::GetSceneViewport().

MT_Transform KX_Camera::GetWorldToCamera ( ) const

Definition at line 92 of file KX_Camera.cpp.

References MT_Transform::invert(), KX_GameObject::NodeGetWorldOrientation(), and KX_GameObject::NodeGetWorldPosition().

Referenced by ImageRender::Render(), KX_Dome::RenderDomeFrame(), and KX_Dome::RotateCamera().

bool KX_Camera::hasValidProjectionMatrix ( ) const

returns true if this camera has been set a projection matrix.

Definition at line 181 of file KX_Camera.cpp.

References m_set_projection_matrix.

Referenced by ImageRender::Render().

void KX_Camera::InvalidateProjectionMatrix ( bool valid = false )

Sets the validity of the projection matrix. Call this if you change camera data (eg lens, near plane, far plane) and require the projection matrix to be recalculated.

Definition at line 186 of file KX_Camera.cpp.

References m_set_projection_matrix.

Referenced by KX_CameraIpoSGController::Update().

void KX_Camera::NormalizeClipPlanes ( ) [protected]

Normalize the camera clip frames.

Definition at line 254 of file KX_Camera.cpp.

References m_normalized, m_planes, MT_fuzzyZero(), p, and sqrt().

Referenced by GetNormalizedClipPlanes(), and SphereInsideFrustum().

bool KX_Camera::PointInsideFrustum ( const MT_Point3 & x )

Tests the given point against the view frustum.

Returns:: true if the given point is inside or on the view frustum; false if it is outside.

Definition at line 369 of file KX_Camera.cpp.

References ExtractClipPlanes(), i, and m_planes.

void KX_Camera::ProcessReplica ( ) [virtual]

Inherited from CValue -- Makes sure any internal data owned by this class is deep copied. Called internally

Reimplemented from KX_GameObject.

Definition at line 85 of file KX_Camera.cpp.

References m_delete_node.

Referenced by GetReplica().

void KX_Camera::SetModelviewMatrix ( const MT_Matrix4x4 & mat )

Sets the modelview matrix that is used by the rasterizer.

Definition at line 153 of file KX_Camera.cpp.

References m_dirty, m_modelview_matrix, and m_set_frustum_center.

Referenced by KX_LightObject::BindShadowBuffer(), ImageRender::Render(), KX_Dome::RenderDomeFrame(), and KX_Dome::RotateCamera().

void KX_Camera::SetProjectionMatrix ( const MT_Matrix4x4 & mat )

Sets the projection matrix that is used by the rasterizer.

Definition at line 140 of file KX_Camera.cpp.

References m_dirty, m_projection_matrix, m_set_frustum_center, and m_set_projection_matrix.

Referenced by KX_LightObject::BindShadowBuffer(), ImageRender::Render(), and KX_Dome::RenderDomeFrame().

void KX_Camera::SetViewport	(	int	left,
		int	bottom,
		int	right,
		int	top
	)

Sets this camera's viewport.

Definition at line 449 of file KX_Camera.cpp.

References left, m_camdata, RAS_CameraData::m_viewportbottom, RAS_CameraData::m_viewportleft, RAS_CameraData::m_viewportright, and RAS_CameraData::m_viewporttop.

int KX_Camera::SphereInsideFrustum	(	const MT_Point3 &	center,
		const MT_Scalar &	radius
	)

Tests if the given sphere is inside this camera's view frustum.

Parameters:

center	The center of the sphere, in world coordinates.
radius	The radius of the sphere.

Returns:: INSIDE, INTERSECT, or OUTSIDE depending on the sphere's relation to the frustum.

Definition at line 413 of file KX_Camera.cpp.

References MT_Point3::distance2(), ExtractClipPlanes(), ExtractFrustumSphere(), fabs(), INSIDE, intersect(), INTERSECT, m_frustum_center, m_frustum_radius, m_planes, NormalizeClipPlanes(), OUTSIDE, and p.

Referenced by KX_Scene::MarkVisible().

Friends And Related Function Documentation

friend class KX_Scene [friend]

Definition at line 57 of file KX_Camera.h.

Member Data Documentation

RAS_CameraData KX_Camera::m_camdata [protected]

Camera parameters (clips distances, focal length). These params are closely tied to Blender. In the gameengine, only the projection and modelview matrices are relevant. There's a conversion being done in the engine class. Why is it stored here? It doesn't really have a function here.

Definition at line 63 of file KX_Camera.h.

Referenced by EnableViewport(), GetCameraData(), GetCameraFar(), GetCameraNear(), GetFocalLength(), GetLens(), GetScale(), GetViewport(), GetViewportBottom(), GetViewportLeft(), GetViewportRight(), GetViewportTop(), and SetViewport().