vtkRenderState Class Reference

Context in which a vtkRenderPass will render. More...

#include <vtkRenderState.h>

Collaboration diagram for vtkRenderState:

Public Member Functions
	vtkRenderState (vtkRenderer *renderer)
	Constructor. More...
	~vtkRenderState ()=default
	Destructor. More...
bool	IsValid () const
	Tells if the RenderState is a valid one (Renderer is not null). More...
vtkRenderer *	GetRenderer () const
	Return the Renderer. More...
vtkFrameBufferObjectBase *	GetFrameBuffer () const
	Return the FrameBuffer. More...
void	SetFrameBuffer (vtkFrameBufferObjectBase *fbo)
	Set the FrameBuffer. More...
void	GetWindowSize (int size[2]) const
	Get the window size of the state. More...
vtkProp **	GetPropArray () const
	Return the array of filtered props. More...
int	GetPropArrayCount () const
	Return the size of the array of filtered props. More...
void	SetPropArrayAndCount (vtkProp **propArray, int propArrayCount)
	Set the array of filtered props and its size. More...
vtkInformation *	GetRequiredKeys () const
	Return the required property keys for the props. More...
void	SetRequiredKeys (vtkInformation *keys)
	Set the required property keys for the props. More...

Protected Attributes
vtkRenderer *	Renderer
	The renderer in which the render pass is performed. More...
vtkFrameBufferObjectBase *	FrameBuffer
	The framebuffer in use. More...
vtkInformation *	RequiredKeys
	It tells that the current render pass it supposed to render only props that have all the RequiredKeys in their property keys. More...
vtkProp **	PropArray
	Subset of props to render. More...
int	PropArrayCount
	Subset of props to render. More...

Detailed Description

Context in which a vtkRenderPass will render.

vtkRenderState is a lightweight effective class which gather information used by a vtkRenderPass to perform its execution.

Attention

Get methods are const to enforce that a renderpass cannot modify the RenderPass object. It works in conjunction with vtkRenderPass::Render where the argument vtkRenderState is const.

See also

vtkRenderPass vtkRenderer vtkFrameBufferObject vtkProp

Definition at line 29 of file vtkRenderState.h.

Constructor & Destructor Documentation

vtkRenderState()

vtkRenderState::vtkRenderState

(

vtkRenderer *

renderer

)

Constructor.

All values are initialized to 0 or NULL.

Precondition

renderer_exists: renderer!=0

Postcondition

renderer_is_set: GetRenderer()==renderer.

valid_state: IsValid()

~vtkRenderState()

vtkRenderState::~vtkRenderState ( )

default

Destructor.

As a vtkRenderState does not own any of its variables, the destructor does nothing.

Member Function Documentation

IsValid()

bool vtkRenderState::IsValid

(

)

const

Tells if the RenderState is a valid one (Renderer is not null).

GetRenderer()

vtkRenderer* vtkRenderState::GetRenderer

(

)

const

Return the Renderer.

This is the renderer in which the render pass is performed. It gives access to the RenderWindow, to the props.

Postcondition

result_exists: result!=0

GetFrameBuffer()

vtkFrameBufferObjectBase* vtkRenderState::GetFrameBuffer

(

)

const

Return the FrameBuffer.

This is the framebuffer in use. NULL means it is the FrameBuffer provided by the RenderWindow (it can actually be an FBO in case the RenderWindow is in off screen mode).

SetFrameBuffer()

void vtkRenderState::SetFrameBuffer

(

vtkFrameBufferObjectBase *

fbo

)

Set the FrameBuffer.

See GetFrameBuffer().

Postcondition

is_set: GetFrameBuffer()==fbo

GetWindowSize()

void vtkRenderState::GetWindowSize

(

int

size[2]

)

const

Get the window size of the state.

GetPropArray()

vtkProp** vtkRenderState::GetPropArray

(

)

const

Return the array of filtered props.

See SetPropArrayAndCount().

GetPropArrayCount()

int vtkRenderState::GetPropArrayCount

(

)

const

Return the size of the array of filtered props.

See SetPropArrayAndCount().

Postcondition

positive_result: result>=0

SetPropArrayAndCount()

void vtkRenderState::SetPropArrayAndCount	(	vtkProp **	propArray,
		int	propArrayCount
	)

Set the array of filtered props and its size.

It is a subset of props to render. A renderpass might ignore this filtered list and access to all the props of the vtkRenderer object directly. For example, a render pass may filter props that are visible and not culled by the frustum, but a sub render pass building a shadow map may need all the visible props.

Precondition

positive_size: propArrayCount>=0

valid_null_array: propArray!=0 || propArrayCount==0

Postcondition

is_set: GetPropArray()==propArray && GetPropArrayCount()==propArrayCount

GetRequiredKeys()

vtkInformation* vtkRenderState::GetRequiredKeys

(

)

const

Return the required property keys for the props.

It tells that the current render pass it supposed to render only props that have all the RequiredKeys in their property keys.

SetRequiredKeys()

void vtkRenderState::SetRequiredKeys

(

vtkInformation *

keys

)

Set the required property keys for the props.

See GetRequiredKeys().

Postcondition

is_set: GetRequiredKeys()==keys

Member Data Documentation

Renderer

vtkRenderer* vtkRenderState::Renderer

protected

The renderer in which the render pass is performed.

It gives access to the RenderWindow, to the props.

Definition at line 119 of file vtkRenderState.h.

FrameBuffer

vtkFrameBufferObjectBase* vtkRenderState::FrameBuffer

protected

The framebuffer in use.

NULL means the FrameBuffer provided by the RenderWindow (it can actually be an FBO in case the RenderWindow is in off screen mode).

Definition at line 126 of file vtkRenderState.h.

PropArray

vtkProp** vtkRenderState::PropArray

protected

Subset of props to render.

A renderpass might ignore this filtered list and access to all the props of the vtkRenderer object directly. For example, a render pass may filter props that are visible and not culled by the frustum, but a sub render pass building a shadow map may need all the visible props.

Definition at line 136 of file vtkRenderState.h.

PropArrayCount

int vtkRenderState::PropArrayCount

protected

Subset of props to render.

A renderpass might ignore this filtered list and access to all the props of the vtkRenderer object directly. For example, a render pass may filter props that are visible and not culled by the frustum, but a sub render pass building a shadow map may need all the visible props.

Definition at line 137 of file vtkRenderState.h.

RequiredKeys

vtkInformation* vtkRenderState::RequiredKeys

protected

It tells that the current render pass it supposed to render only props that have all the RequiredKeys in their property keys.

Definition at line 144 of file vtkRenderState.h.

---

The documentation for this class was generated from the following file:

• Rendering/Core/vtkRenderState.h