SceneCameraState
Engine/source/scene/sceneCameraState.h
An object that combines all the state that is relevant to looking into the scene from a particular point of view.
Protected Attributes
Actual head position (will be - eye pos)
The projection matrix.
World-space vector representing the view direction.
The inverse of the frustum's transform stored here for caching.
Protected Functions
Internal constructor.
Public Functions
Return the camera frustum.
Returns the world->view transform for the head (used to calculate various display metrics)
Return the projection transform.
Return the world-space view vector.
Return the screen-space viewport rectangle.
Return the view position. This is a shortcut for getFrustum().getPosition().
Return the view->world transform. This is a shortcut for getFrustum().getTransform().
Return the world->view transform.
Public Static Functions
fromGFX()
Capture the view state from the current GFX state.
fromGFXWithViewport(const RectI & viewport)
Detailed Description
An object that combines all the state that is relevant to looking into the scene from a particular point of view.
Protected Attributes
Frustum mFrustum
The viewing frustum.
MatrixF mHeadWorldViewMatrix
Actual head position (will be - eye pos)
MatrixF mProjectionMatrix
The projection matrix.
Point3F mViewDirection
World-space vector representing the view direction.
RectI mViewport
The screen-space viewport rectangle.
MatrixF mWorldViewMatrix
The inverse of the frustum's transform stored here for caching.
Protected Functions
SceneCameraState()
Internal constructor.
Public Functions
SceneCameraState(const RectI & viewport, const Frustum & frustum, const MatrixF & worldView, const MatrixF & projection)
Freeze the given viewing state.
Parameters:
| viewport | Screen-space viewport rectangle. |
| frustum | Camera frustum. |
| worldView | World->view matrix. |
| projection | Projection matrix. |
getFrustum()
Return the camera frustum.
getHeadWorldViewMatrix()
Returns the world->view transform for the head (used to calculate various display metrics)
getProjectionMatrix()
Return the projection transform.
getViewDirection()
Return the world-space view vector.
getViewport()
Return the screen-space viewport rectangle.
getViewPosition()
Return the view position. This is a shortcut for getFrustum().getPosition().
getViewWorldMatrix()
Return the view->world transform. This is a shortcut for getFrustum().getTransform().
getWorldViewMatrix()
Return the world->view transform.
Public Static Functions
fromGFX()
Capture the view state from the current GFX state.
fromGFXWithViewport(const RectI & viewport)