RenderPass is the base class for Kanzi render passes. More...

#include <kanzi/core.ui/graphics3d/render_pass.hpp>

Inheritance diagram for kanzi::RenderPass:

Classes
struct	ResourceBinding
	Struct containing resource binding information. More...

Public Types
typedef vector< RenderPassSharedPtr >	ChildContainer

Public Types inherited from kanzi::PropertyObject
typedef intrusive_ptr< AbstractPropertyTypeDescriptor::PropertyStorage >	PropertyStoragePtr

typedef vector< PropertyStoragePtr >	PropertyStorageContainer

typedef PropertyStorageContainer::iterator	PropertyStorageIterator

typedef PropertyStorageContainer::const_iterator	PropertyStorageConstIterator

typedef PropertyStorageContainer::reverse_iterator	PropertyStorageReverseIterator

Public Member Functions
RenderPassSharedPtr	lookupRenderPass (string_view path)
	Resolve a render pass by path. More...

void	render (Renderer3D &renderer, TransformedScene3D &transformedScene, CompositionStack &compositionStack)
	Recursively render RenderPass and all of its child render passes. More...

void	renderMesh (Node3D &node, Morph *morph, Mesh &mesh, unsigned int clusterIndex, MaterialRenderer &materialRenderer)
	Use this function to render a mesh owned by a node using the material renderer that the node owns. More...

void	addChild (RenderPassSharedPtr childRenderPass)
	Adds a render pass as the last child of the render pass you set. More...

void	insertChild (size_t index, RenderPassSharedPtr childRenderPass)
	Adds a render pass as a child render pass at given index of the render pass you set. More...

void	removeChild (RenderPass &childRenderPass)
	Removes a child render pass. More...

void	removeAllChildren ()
	Removes all child render passes from a render pass. More...

RenderPassSharedPtr	getParent () const
	Gets the parent of a render pass. More...

void	setParent (RenderPassSharedPtr parent)
	Sets the parent of a render pass. More...

RenderPassSharedPtr	getChild (size_t index)
	Gets a child render pass at the given index. More...

size_t	getChildCount () const
	Returns the number of child render passes. More...

ChildContainer::const_iterator	beginChildren () const
	Returns an iterator to the beginning of the container of child render passes. More...

ChildContainer::const_iterator	endChildren () const
	Returns an iterator to the end of the container of child render passes. More...

TextureSharedPtr	getCompositionResult (Framebuffer::AttachmentPoint attachmentPoint)
	Gets color composition target that was used for rendering. More...

size_t	getTextureBindingCount () const
	Gets the number of texture bindings. More...

ResourceBinding	getTextureBinding (size_t index) const
	Gets a texture binding by index. More...

void	addTextureBinding (AbstractPropertyType propertyType, string_view path, bool fromKzb)
	Adds a texture binding. More...

void	addTextureBinding (AbstractPropertyType propertyType, string_view path)
	Adds a texture binding. More...

bool	removeTextureBinding (AbstractPropertyType propertyType)
	Removes the texture binding. More...

void	removeKzbTextureBindings ()
	Removes the resource bindings loaded from kzb files. More...

virtual CompositionRequirements	getCompositionRequirements () const
	Queries if a render pass requires a depth buffer. More...

void	restoreResourcesRecursive ()
	Recursively calls restoreResources for a RenderPass and all its children. More...

virtual void	restoreResources ()
	Restore resources after suspend. More...

virtual void	loadFromKZB (const ResourceLoaderThreadContext threadContext, KzcInputStream inputStream, const KzuBinaryFileInfo *file) KZ_OVERRIDE
	Resource::loadFromKZB() implementation. More...

Public Member Functions inherited from kanzi::Resource
KzcMemoryManager *	getMemoryManager () const

	Resource (Domain *domain, string_view name)

virtual	~Resource ()

virtual void	unloadOverride ()
	Unload function for resource. Releases all CPU memory taken by the resource except the resource loader. More...

virtual unsigned int	getCPUMemoryUsage () const
	Function for getting the memory usage of a resource. More...

void	setKZB (const KzuBinaryDirectory *binaryDirectory, string_view path)
	Set the binary directory and path of the resource. More...

const string &	getName () const
	Gets the resource name. More...

const string &	getUrl () const
	Gets the resource URL. More...

void	setUrl (string_view url)
	Sets the resource URL. More...

void	setNotLoaded ()

bool	isFromKZB () const

void	reload ()

void	reloadFromKzb (KzcInputStream inputStream, const KzuBinaryFileInfo file)

void	reloadFromKzb (KzbFile &kzbFile, ReadOnlyMemoryFile &file, KzbMemoryParser &parser)

void	reloadFromFile (string_view filePath)

void	load ()

void	unload ()

bool	isLoaded () const

void	kzuResourceLoad_private (const ResourceLoaderThreadContext *threadContext)
	Private function for kzuResourceLoad() with specified thread context. More...

void	kzuResourceFinishLoading_private (const ResourceLoaderThreadContext *threadContext)
	Private function for finishing the loading of the resource. More...

bool	isKeepAlive () const
	Tells if the resource has keep alive flag set. More...

void	setKeepAlive (bool keepAlive)
	Sets the keep alive flag. More...

Public Member Functions inherited from kanzi::Object
	Object (Domain *domain)

virtual	~Object ()

Domain *	getDomain () const
	Returns the domain the object belongs to. More...

KzuTaskScheduler *	getTaskScheduler () const
	Returns the task scheduler of the object. More...

KzuMessageDispatcher *	getMessageDispatcher () const
	Returns the message dispatcher of the object. More...

ResourceManager *	getResourceManager () const
	Returns the resource manager of the object. More...

virtual const Metaclass *	getDynamicMetaclass () const KZ_OVERRIDE
	Returns the metaclass of the dynamic type of the object. More...

AppliedStyleEntrySharedPtr	applyObjectStyle (kanzi::StyleSharedPtr style)
	Applies a style to an object. More...

void	unapplyObjectStyle (AppliedStyleEntrySharedPtr appliedStyleEntry)

void	applyObjectStyles ()
	Apply all styles for an object node. More...

void	unapplyObjectStyles ()
	Unapplies and removes all applied styles. More...

Public Member Functions inherited from kanzi::MetaObject
virtual	~MetaObject ()

bool	isTypeOf (const Metaclass *objectType) const
	Determines if the type of this object is the given type or derived from it. More...

Public Member Functions inherited from kanzi::PropertyObject
	PropertyObject ()

virtual	~PropertyObject ()

template<typename DataType >
void	setProperty (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Traits::ParameterType value)
	Sets the local value of a property. More...

void	removeKzbProperties ()

template<typename DataType >
PropertyType< DataType >::Traits::ReturnType	getProperty (const PropertyType< DataType > &propertyType) const
	Returns the current value of a property. More...

template<typename DataType >
optional< typename PropertyType< DataType >::Traits::ReturnType >	getOptionalProperty (const PropertyType< DataType > &propertyType) const
	Evaluates the property value in the same way as the overload above but does not default to the value in property metadata if there are no inputs to the property value. More...

template<typename DataType >
PropertyType< DataType >::Traits::ReturnType	getPropertyBase (const PropertyType< DataType > &propertyType) const
	Returns the current value of a property disregarding modifiers. More...

template<typename DataType >
void	setAbstractProperty (AbstractPropertyType abstractPropertyType, typename PropertyType< DataType >::Traits::ParameterType value)

template<typename DataType >
PropertyType< DataType >::Traits::ReturnType	getAbstractProperty (AbstractPropertyType abstractPropertyType) const

template<typename DataType >
PropertyType< DataType >::Traits::ReturnType	getAbstractPropertyBase (AbstractPropertyType abstractPropertyType) const

template<typename DataType >
optional< typename PropertyType< DataType >::Traits::ReturnType >	getOptionalAbstractProperty (AbstractPropertyType abstractPropertyType) const

void	setPropertyFlag (AbstractPropertyType propertyType, uint32_t flag)

bool	isPropertyFlagSet (AbstractPropertyType propertyType, uint32_t flag) const

void	clearPropertyFlag (AbstractPropertyType propertyType, uint32_t flag)

bool	hasValue (AbstractPropertyType propertyType) const
	Evaluates whether there are any inputs into the property value. More...

bool	hasBaseValue (AbstractPropertyType propertyType) const
	Evaluates whether there are any inputs into the property value, disregarding modifiers. More...

bool	hasLocalValue (AbstractPropertyType propertyType) const
	Evaluates whether there is a local value set for the property. More...

bool	hasNonClassValue (AbstractPropertyType propertyType) const
	Evaluates whether there is a value of any precedence higher than class default value set for the property. More...

void	removeLocalValue (AbstractPropertyType propertyType)
	Removes the local value associated with the property. More...

void	copyLocalValue (const PropertyObject &other, AbstractPropertyType propertyType)
	Copies local value of single property from another object. More...

void	copyLocalValues (const PropertyObject &other)
	Copies all local values from another object. More...

virtual void	onPropertyChanged (AbstractPropertyType propertyType, PropertyNotificationReason reason)
	Virtual function to handle property change notifications. More...

template<typename DataType >
void	addPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource valueSource, PropertyValuePrecedence precedence, void owner)

template<typename DataType >
void	removePropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource valueSource, void owner)

template<typename DataType >
void	addPropertyModifier (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner)

template<typename DataType >
void	removePropertyModifier (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner)

void	validatePropertyModifiers (AbstractPropertyType propertyType)

template<typename DataType >
void	addPropertyNotificationHandler (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::NotificationCallback callback, void *owner)

template<typename DataType >
void	removePropertyNotificationHandler (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::NotificationCallback callback, void *owner)

template<typename DataType >
size_t	getPropertyNotificationHandlerCount (const PropertyType< DataType > &propertyType)
	Gets number of current notification handlers for given property type. More...

Static Public Member Functions
static PropertyTypeEditorInfoSharedPtr	makeEditorInfo ()

static RenderPassSharedPtr	create (Domain *domain, string_view name)
	Create a render pass. More...

static ResourceManager::LoadTaskSharedPtr	createLoadTask (string_view name, KzbFile *kzbFile, unique_ptr< ReadOnlyMemoryFile > file)
	Factory function for RenderPass Load Task, which loads a RenderPass from a kzb file. More...

Static Public Member Functions inherited from kanzi::Object
static const Metaclass *	getStaticMetaclass ()
	Returns the metaclass of Object class. More...

static PropertyTypeEditorInfoSharedPtr	makeEditorInfo ()
	Default implementation that returns empty editor info. More...

Static Public Member Functions inherited from kanzi::MetaObject
static const Metaclass *	getStaticMetaclass ()
	Returns the metaclass of Object class. More...

static PropertyTypeEditorInfoSharedPtr	makeEditorInfo ()
	Default implementation that returns empty editor info. More...

Protected Member Functions
	RenderPass (Domain *domain, string_view name)
	Constructor. More...

virtual void	onLoaded ()
	Override function called by createLoadTask(), after loading render pass. More...

void	loadChildRenderPassesFromKZB (ResourceManager &resourceManager, KzbMemoryParser &parser)
	Load child render passes from a kzb file. More...

void	loadProperties (KzbMemoryParser &parser)
	Reimplementation of the loadProperties from parser to accommodate paths in properties. More...

kzsError	readProperties (struct KzcInputStream inputStream, const struct KzuBinaryFileInfo file, ResourceManager *resourceManager)
	Reimplementation of the property reading to accommodate paths in properties. More...

kzsError	readProperty (struct KzcInputStream inputStream, const struct KzuBinaryFileInfo file, ResourceManager *resourceManager)
	Reimplementation of reading a single property to accommodate paths in properties. More...

void	renderChildren (Renderer3D &renderer, TransformedScene3D &transformedScene, CompositionStack &compositionStack)
	Render all child render passes of a render pass. More...

CompositionRequirements	combineChildCompositionRequirements (CompositionRequirements requirements) const
	Iterates the children for composition requirements. More...

CompositionRequirements	getChildCompositionRequirements () const
	Iterates the children for composition requirements. More...

virtual void	renderOverride (Renderer3D &renderer, TransformedScene3D &transformedScene, CompositionStack &compositionStack)
	Render implementation specific to the RenderPass class. More...

virtual void	renderMeshOverride (Node3D &node, Morph *morph, Mesh &mesh, unsigned int clusterIndex, MaterialRenderer &materialRenderer)
	Mesh rendering that is specific for a render pass. More...

virtual TextureSharedPtr	getCompositionResultOverride (Framebuffer::AttachmentPoint attachmentPoint)
	Acquiring of composition target specific to the RenderPass class. More...

Protected Member Functions inherited from kanzi::Resource
virtual void	reloadOverride ()

virtual void	reloadFromKzbOverride (KzcInputStream inputStream, const KzuBinaryFileInfo file)

virtual void	reloadFromKzbOverride (KzbFile &kzbFile, ReadOnlyMemoryFile &file, KzbMemoryParser &parser)

virtual void	reloadFromFileOverride (string_view filePath)

virtual unsigned int	getCPUMemoryUsageOverride () const

Protected Member Functions inherited from kanzi::Object
void	initialize ()

void	onCopy (const Object &other)

Protected Member Functions inherited from kanzi::MetaObject
	MetaObject ()

void	initialize ()

Protected Member Functions inherited from kanzi::PropertyObject
void	addPropertyValueSource (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::ValueSource valueSource, PropertyValuePrecedence precedence, void owner)

void	removePropertyValueSource (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::ValueSource valueSource, void owner)

AbstractPropertyTypeDescriptor::ValueSourceEntry *	getTopValueSourceEntry (AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage) const

AbstractPropertyTypeDescriptor::ValueSourceEntry *	getTopValueSourceEntry (AbstractPropertyTypeDescriptor &descriptor) const

AbstractPropertyTypeDescriptor::ValueSource *	getTopValueSource (AbstractPropertyTypeDescriptor &descriptor) const

AbstractPropertyTypeDescriptor::ValueSource *	getFinalValueSource (AbstractPropertyTypeDescriptor &descriptor) const

AbstractPropertyTypeDescriptor::ValueSource *	getNonClassValueSource (AbstractPropertyTypeDescriptor &descriptor) const

AbstractPropertyTypeDescriptor::ValueSource *	getClassValueSource (AbstractPropertyTypeDescriptor &descriptor) const

AbstractPropertyTypeDescriptor::ValueSourceEntry *	findLocalValueSourceEntry (AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage)

AbstractPropertyTypeDescriptor::ValueSourceEntry *	constructLocalValueSourceEntry (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage)

AbstractPropertyTypeDescriptor::ValueSourceEntry *	acquireLocalValueSourceEntry (AbstractPropertyTypeDescriptor &descriptor, PropertyStoragePtr &propertyStorage)

AbstractPropertyTypeDescriptor::PropertyStorage *	findPropertyStorage (AbstractPropertyTypeDescriptor &descriptor) const

PropertyStoragePtr	findPropertyStoragePtr (AbstractPropertyTypeDescriptor &descriptor) const
	Gets property storage intrusive pointer that can be used to hold a reference until end of operation. More...

PropertyStoragePtr	constructPropertyStorage (AbstractPropertyTypeDescriptor &descriptor)

PropertyStoragePtr	acquirePropertyStorage (AbstractPropertyTypeDescriptor &descriptor)

AbstractPropertyTypeDescriptor::ModifierStorage *	acquireModifierStorage (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage)

AbstractPropertyTypeDescriptor::ModifierStorage *	findModifierStorage (AbstractPropertyTypeDescriptor &descriptor)

AbstractPropertyTypeDescriptor::NotificationStorage *	acquireNotificationStorage (AbstractPropertyTypeDescriptor &descriptor)

AbstractPropertyTypeDescriptor::NotificationStorage *	findNotificationStorage (AbstractPropertyTypeDescriptor &descriptor)

AbstractPropertyTypeDescriptor *	findPropertyTypeDescriptorByUnqualifiedNameAndDataType (string_view unqualifiedName, PropertyDataType dataType)

void	validatePropertyModifiersAndNotifyHandlers (PropertyStoragePtr &propertyStorage)

void	copyLocalValue (const AbstractPropertyTypeDescriptor::PropertyStorage &otherPropertyStorage)
	Copy local value from property storage. More...

PropertyStorageContainer::iterator	beginPropertyStorage ()

PropertyStorageContainer::iterator	endPropertyStorage ()

virtual void	notifyPropertyHandlers (PropertyStoragePtr &propertyStorage, PropertyNotificationReason reason)

void	onCopy (const PropertyObject &other)

Friends
class	LoadTaskNew

Additional Inherited Members
Protected Types inherited from kanzi::Object
typedef vector< AppliedStyleEntrySharedPtr >	AppliedStyleContainer
	Applied style container. More...

Protected Attributes inherited from kanzi::Object
AppliedStyleContainer	m_appliedStyles
	Listing of applied styles applied to this object. More...

Detailed Description

RenderPass is the base class for Kanzi render passes.

Use render passes to perform singular render pass operations in 3D scenes. For example, use a render pass to clear the background, render nodes for a specific object source, set up a composition target, and so on.

Combine render passes into a hierarchy to create the rendering result you want to achieve.

Render pass rendering and execution order

The base RenderPass class does not implement any functionality, but renders its descendant render passes. This is the reason why the base RenderPass class is called Group Render Pass in Kanzi Studio. All other render passes either perform draw operations or set the state for successive render passes. In both cases, they pass the control to their descendant render passes only after they execute their own operations. Keep this in mind when you define your own render passes. See Creating your own render pass.

Render passes that perform draw operations are:

Render passes that set state are:

Kanzi excutes render passes by iterating the tree depth-first. This is similar to how Kanzi iterates nodes when it renders the scene graph. Each render pass first executes itself, then, one at a time, all of its child render passes. Since the child render passes execute themselves, Kanzi executes the full tree starting from a child render pass before it executes the next child render pass. In the same way, the successive Kanzi executes the sibling render passes before it returns the control returns to the parent render pass.

Using textures created with render passes

You can use a render pass to create a texture and then use that texture in other render passes. The texture bindings are resolved on render. For example, you can show on the screen a texture that a CompositionTargetRenderPass creates, with a BlitRenderPass.

Creating render passes

When you create a render pass, the create function calls the constructor, initializes the render pass, and returns the pointer to the render pass. The render pass constructors are protected and only inheriting classes can access them.

For example, to create a Group Render Pass:

// Create a Group Render Pass which you can use to combine different types of render passes to achieve a specific rendering result.

RenderPassSharedPtr renderPass = RenderPass::create(domain, "Group Render Pass");

Render pass hierarchy

You can combine render passes into a hierarchy to create the rendering result you cannot achieve with any single render pass. When you select a render pass for a Scene or a Viewport2D node, you can select either the root render pass or a specific render pass within such hierarchy. If you select a specific render pass within such hierarchy, Kanzi uses only that render pass and its descendants to render the content.

If a render pass is the root of its own tree, it does not have a parent render pass. In the same manner, if a render pass is a leaf render pass, it does not have any child render passes.

To create a render pass hierarchy:

        // Create a top-level Group Render Pass to act as root.
        RenderPassSharedPtr defaultRenderPass = RenderPass::create(domain, "Group Render Pass");
        // Create a Pipeline State Render Pass you can use to set the rendering state, and add it to the Group Render Pass.
        PipelineStateRenderPassSharedPtr pipelineStateRenderPass = PipelineStateRenderPass::create(domain, "Pipeline State Render Pass");
        defaultRenderPass->addChild(pipelineStateRenderPass);
        // Create a Clear Render Pass to do the clearing before rendering, and add it to the Pipeline State Render Pass.
        ClearRenderPassSharedPtr clearRenderPass = ClearRenderPass::create(domain, "Clear Render Pass");
        pipelineStateRenderPass->addChild(clearRenderPass);
        // Create a Draw Objects Render Pass to render all 3D objects after clearing, and add it to the Pipeline State Render Pass.
        DrawObjectsRenderPassSharedPtr drawObjectsRenderPass = DrawObjectsRenderPass::create(domain, "Draw Objects Render Pass");
        pipelineStateRenderPass->addChild(drawObjectsRenderPass);

To access descendant render passes (child render passes of the current render pass):

// Gets the first descendant (the first child render pass) of a render pass.

RenderPassSharedPtr childRenderPass = groupRenderPass->getChild(0);

To access ascendant render pass (parent render pass of the current render pass):

// Gets the ascendant (the parent render pass) of a render pass.

RenderPassSharedPtr parentRenderPass = pipelineStateRenderPass->getParent();

Creating your own render pass class

If you cannot achieve the rendering result with the render passes that come with Kanzi, you can create your own render pass.

Defining the class

Start creating your own render pass by inheriting from the RenderPass base class. Define metaclass and declare property types in the same way as you would in the Node classes. See Node2D.

To create a simple custom render pass:

class ExampleRenderPass;
typedef shared_ptr<ExampleRenderPass> ExampleRenderPassSharedPtr;
class ExampleRenderPass : public RenderPass
{
public:
    static PropertyType<float> PolygonOffsetProperty;
    float getPolygonOffset() const
    {
        return getProperty(PolygonOffsetProperty);
    }
    void setPolygonOffset(float value)
    {
        setProperty(PolygonOffsetProperty, value);
    }
    KZ_METACLASS_BEGIN(ExampleRenderPass, RenderPass, "Kanzi.ExampleRenderPass")
        KZ_METACLASS_PROPERTY_TYPE(PolygonOffsetProperty)
    KZ_METACLASS_END()
    static PropertyTypeEditorInfoSharedPtr makeEditorInfo();
    static ExampleRenderPassSharedPtr create(Domain* domain, string_view name)
    {
        ExampleRenderPassSharedPtr renderPass = make_polymorphic_shared_ptr<RenderPass>(new ExampleRenderPass(domain, name));
        renderPass->initialize();
        return renderPass;
    }
protected:
    explicit ExampleRenderPass(Domain* domain, string_view name) :
        RenderPass(domain, name)
    {
    }
    virtual void renderOverride(Renderer3D& renderer, TransformedScene3D& transformedScene, CompositionStack& compositionStack);
};
PropertyType<float> ExampleRenderPass::PolygonOffsetProperty(kzMakeFixedString("ExampleRenderPass.PolygonOffset"), 1.0f, 0, false,
                                                             KZ_DECLARE_EDITOR_METADATA
                                                             (
                                                                 metadata.displayName = "Polygon Offset";
                                                                 metadata.host = "Kanzi.RenderPass:context,Kanzi.ExampleRenderPass:auto";
                                                                 metadata.tooltip = "Defines the polygon offset for rendering the children of the render pass.";
                                                             ));
PropertyTypeEditorInfoSharedPtr ExampleRenderPass::makeEditorInfo()
{
    return PropertyTypeEditorInfoSharedPtr(
        KZ_PROPERTY_TYPE_EDITOR_INFO(
            []() -> PropertyTypeEditorInfo::AttributeDictionary
            {
                PropertyTypeEditorInfo::AttributeDictionary dict;
                dict.displayName = "Example Render Pass";
                dict.tooltip = "Use Example Render Pass to set polygon offset for rendering its render pass tree. For example, this can be useful for rendering decals on existing geometry.";
                return dict;
            }()
        ));
}

RenderPass override functions

When you need to override the functionality of the RenderPass class, override the renderOverride() virtual method:

void ExampleRenderPass::renderOverride(Renderer3D& renderer, TransformedScene3D& transformedScene, CompositionStack& compositionStack)
{
    // Modify state. In this case, set the polygon offset.
    // This example does not store the existing polygon offset.
    float offset = getProperty(PolygonOffsetProperty);
    kzsGlPolygonOffset(1.0f, offset);
    // Pass to rendering children.
    renderChildren(renderer, transformedScene, compositionStack);
    // Restore state.
    kzsGlPolygonOffset(0.0f, 0.0f);
}

The RenderPass base class loads all render pass properties that you define in your render pass. However, if you need to implement custom loading for your render pass, you can override the #loadFromKzb() method.

Member Typedef Documentation

typedef vector<RenderPassSharedPtr> kanzi::RenderPass::ChildContainer

Constructor & Destructor Documentation

kanzi::RenderPass::RenderPass	(	Domain *	domain,
		string_view	name
	)

explicitprotected

Constructor.

Member Function Documentation

static PropertyTypeEditorInfoSharedPtr kanzi::RenderPass::makeEditorInfo ( )

static

static RenderPassSharedPtr kanzi::RenderPass::create	(	Domain *	domain,
		string_view	name
	)

static

Create a render pass.

Parameters

domain	The domain to use.
name	The name for the render pass.

RenderPassSharedPtr kanzi::RenderPass::lookupRenderPass ( string_view path )

Resolve a render pass by path.

Parameters

path	The relative path to the render pass.

Returns: The render pass, if none found, 0.

void kanzi::RenderPass::render	(	Renderer3D &	renderer,
		TransformedScene3D &	transformedScene,
		CompositionStack &	compositionStack
	)

Recursively render RenderPass and all of its child render passes.

Calls renderOverride that you can implement by inheriting classes.

Parameters

renderer	The renderer to use.
transformedScene	The transformed scene to render.
compositionStack	The composition stack to use.

void kanzi::RenderPass::renderMesh	(	Node3D &	node,
		Morph *	morph,
		Mesh &	mesh,
		unsigned int	clusterIndex,
		MaterialRenderer &	materialRenderer
	)

Use this function to render a mesh owned by a node using the material renderer that the node owns.

Parameters

node	Node being rendered.
morph	Morph, if applicable.
mesh	Mesh being rendered.
clusterIndex	Cluster being drawn.
materialRenderer	Material renderer provided to use for rendering the mesh.

void kanzi::RenderPass::addChild ( RenderPassSharedPtr childRenderPass )

Adds a render pass as the last child of the render pass you set.

Parameters

childRenderPass The render pass to add.

void kanzi::RenderPass::insertChild	(	size_t	index,
		RenderPassSharedPtr	childRenderPass
	)

Adds a render pass as a child render pass at given index of the render pass you set.

Parameters

index	The index at which to insert the child render pass.
childRenderPass	The render pass to add.

void kanzi::RenderPass::removeChild ( RenderPass & childRenderPass )

Removes a child render pass.

If the render pass is not a child of this render pass, silently does nothing.

Parameters

childRenderPass The render pass to remove.

void kanzi::RenderPass::removeAllChildren ( )

Removes all child render passes from a render pass.

RenderPassSharedPtr kanzi::RenderPass::getParent ( ) const

inline

Gets the parent of a render pass.

Returns: Shared pointer to the parent render pass of a render pass, an empty shared pointer if the render pass does not have a parent.

void kanzi::RenderPass::setParent ( RenderPassSharedPtr parent )

inline

Sets the parent of a render pass.

Parameters

parent The parent render pass.

RenderPassSharedPtr kanzi::RenderPass::getChild ( size_t index )

inline

Gets a child render pass at the given index.

Throws an error if the index is invalid.

Parameters

index The index of the child render pass that you want get.

Returns: Shared pointer to the child render pass at the given index.

size_t kanzi::RenderPass::getChildCount ( ) const

inline

Returns the number of child render passes.

ChildContainer::const_iterator kanzi::RenderPass::beginChildren ( ) const

inline

Returns an iterator to the beginning of the container of child render passes.

ChildContainer::const_iterator kanzi::RenderPass::endChildren ( ) const

inline

Returns an iterator to the end of the container of child render passes.

TextureSharedPtr kanzi::RenderPass::getCompositionResult ( Framebuffer::AttachmentPoint attachmentPoint )

inline

Gets color composition target that was used for rendering.

Internally calls the getCompositionResultOverride() method. Only returns non-empty shared pointer values by render passes actually using composition targets.

Parameters

attachmentPoint The attachment point of the composition result to acquire.

Returns: Texture shared pointer, may be empty.

size_t kanzi::RenderPass::getTextureBindingCount ( ) const

inline

Gets the number of texture bindings.

Returns: The number of texture bindings in the render pass.

ResourceBinding kanzi::RenderPass::getTextureBinding ( size_t index ) const

inline

Gets a texture binding by index.

Returns: The texture binding at the given index.

void kanzi::RenderPass::addTextureBinding	(	AbstractPropertyType	propertyType,
		string_view	path,
		bool	fromKzb
	)

Adds a texture binding.

Use texture bindings to map the composition result values from other render passes to property values.

Path of the texture binding describes the relative path to another render pass from which the composition is acquired. After the relative path, an optional dot followed by an attachment point name can be specified. Valid attachment points accepted are:

"Color0", "Color1", "Color2" or "Color3"
"Depth" Not specifying anything for the attachment point name is the same as specifying ".Color0" for the first color attachment point.

Parameters

propertyType	The property type to map to.
path	The path to the render pass to which you want to add texture binding.
fromKzb	Indicates whether the resource binding is loaded from a kzb file.

void kanzi::RenderPass::addTextureBinding	(	AbstractPropertyType	propertyType,
		string_view	path
	)

inline

Adds a texture binding.

Use texture bindings to map the composition result values from other render passes to property values. The binding added is set to not come from a kzb file.

Parameters

propertyType	The property type to map to.
path	The path to the render pass to which you want to add texture binding.

bool kanzi::RenderPass::removeTextureBinding ( AbstractPropertyType propertyType )

Removes the texture binding.

Parameters

propertyType The property type for which you want to remove the binding.

Returns: True when the function finds a binding and removes it, otherwise false.

void kanzi::RenderPass::removeKzbTextureBindings ( )

Removes the resource bindings loaded from kzb files.

This function is analogous to removeKzbProperties().

virtual CompositionRequirements kanzi::RenderPass::getCompositionRequirements ( ) const

virtual

Queries if a render pass requires a depth buffer.

Use this function to determine the depth buffer requirement for automatically created render targets.

Parameters

allowDepthClear	Output parameter, true if node can clear depth buffer.
requiresDepth	Output parameter, true if node requires composition target to have depth buffer.

Reimplemented in kanzi::PipelineStateRenderPass, kanzi::CompositionTargetRenderPass, kanzi::LegacyRenderPass, and kanzi::ClearRenderPass.

void kanzi::RenderPass::restoreResourcesRecursive ( )

Recursively calls restoreResources for a RenderPass and all its children.

Calls happen in depth-first order.

virtual void kanzi::RenderPass::restoreResources ( )

virtual

Restore resources after suspend.

Inheriting classes should call parent class methods.

Reimplemented in kanzi::CompositionTargetRenderPass.

virtual void kanzi::RenderPass::loadFromKZB	(	const ResourceLoaderThreadContext *	threadContext,
		KzcInputStream *	inputStream,
		const KzuBinaryFileInfo *	file
	)

virtual

Resource::loadFromKZB() implementation.

Legacy kzb loading.

Reimplemented from kanzi::Resource.

Reimplemented in kanzi::LegacyRenderPass.

static ResourceManager::LoadTaskSharedPtr kanzi::RenderPass::createLoadTask	(	string_view	name,
		KzbFile *	kzbFile,
		unique_ptr< ReadOnlyMemoryFile >	file
	)

static

Factory function for RenderPass Load Task, which loads a RenderPass from a kzb file.

Parameters

name	Name of the RenderPass that you want to load.
kzbFile	Pointer to the instance of KzbFile, which holds the information about the kzb file.
file	Pointer to the instance of ReadOnlyMemoryFile, which wraps the kzb file.

Returns: Shared pointer to the created load task.

virtual void kanzi::RenderPass::onLoaded ( )

inlineprotectedvirtual

Override function called by createLoadTask(), after loading render pass.

Allows render pass type specific post loading implementation.

Reimplemented in kanzi::LegacyRenderPass.

void kanzi::RenderPass::loadChildRenderPassesFromKZB	(	ResourceManager &	resourceManager,
		KzbMemoryParser &	parser
	)

protected

Load child render passes from a kzb file.

Kanzi calls this function in individual loadFromKZB implementations.

Parameters

resourceManager	The resource manager for accessing the child render passes.
parser	The file parser to use for loading.

void kanzi::RenderPass::loadProperties ( KzbMemoryParser & parser )

protected

Reimplementation of the loadProperties from parser to accommodate paths in properties.

Parameters

parser The parser to use.

kzsError kanzi::RenderPass::readProperties	(	struct KzcInputStream *	inputStream,
		const struct KzuBinaryFileInfo *	file,
		ResourceManager *	resourceManager
	)

protected

Reimplementation of the property reading to accommodate paths in properties.

Previous version of the loader.

kzsError kanzi::RenderPass::readProperty	(	struct KzcInputStream *	inputStream,
		const struct KzuBinaryFileInfo *	file,
		ResourceManager *	resourceManager
	)

protected

Reimplementation of reading a single property to accommodate paths in properties.

Previous version of the loader.

void kanzi::RenderPass::renderChildren	(	Renderer3D &	renderer,
		TransformedScene3D &	transformedScene,
		CompositionStack &	compositionStack
	)

protected

Render all child render passes of a render pass.

Parameters

renderer	The renderer to use.
transformedScene	The transformed scene to render.
compositionStack	The composition stack to use.

CompositionRequirements kanzi::RenderPass::combineChildCompositionRequirements ( CompositionRequirements requirements ) const

protected

Iterates the children for composition requirements.

The requirements for children are merged with the requirements passed.

Parameters

requirements Initial requirements.

Returns: Requirements combined with all children.

CompositionRequirements kanzi::RenderPass::getChildCompositionRequirements ( ) const

inlineprotected

Iterates the children for composition requirements.

Usually the user should call combineChildCompositionRequirements() instead. This function is used if the render pass has no requirements of its own.

Returns: Requirements combined with all children.

virtual void kanzi::RenderPass::renderOverride	(	Renderer3D &	renderer,
		TransformedScene3D &	transformedScene,
		CompositionStack &	compositionStack
	)

protectedvirtual

Render implementation specific to the RenderPass class.

The default implementation renders all child render passes, but does nothing else. For this reason the base render pass class is considered as a Group Render Pass.

Parameters

renderer	The renderer to use.
transformedScene	The transformed scene to render.
compositionStack	The composition stack to use.

Reimplemented in kanzi::PipelineStateRenderPass, kanzi::CompositionTargetRenderPass, kanzi::LegacyRenderPass, kanzi::BlitRenderPass, kanzi::DrawObjectsRenderPass, kanzi::ClearRenderPass, kanzi::DrawObjectsWithMaterialRenderPass, and kanzi::MaterialSetupRenderPass.

virtual void kanzi::RenderPass::renderMeshOverride	(	Node3D &	node,
		Morph *	morph,
		Mesh &	mesh,
		unsigned int	clusterIndex,
		MaterialRenderer &	materialRenderer
	)

protectedvirtual

Mesh rendering that is specific for a render pass.

Most of the render passes do not need to override this, because they do not render nodes.

Parameters

node	Node being rendered.
morph	Morph, if applicable.
mesh	Mesh being rendered.
clusterIndex	Cluster being drawn.
materialRenderer	Material renderer provided to use for rendering the mesh.

Reimplemented in kanzi::LegacyRenderPass, kanzi::DrawObjectsRenderPass, and kanzi::DrawObjectsWithMaterialRenderPass.

virtual TextureSharedPtr kanzi::RenderPass::getCompositionResultOverride ( Framebuffer::AttachmentPoint attachmentPoint )

inlineprotectedvirtual

Acquiring of composition target specific to the RenderPass class.

The default implementation returns an empty shared pointer.

Parameters

attachmentPoint Which composition result to acquire?

Returns: Shared pointer to the resulting texture.

Reimplemented in kanzi::CompositionTargetRenderPass.

Friends And Related Function Documentation

friend class LoadTaskNew

friend

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

kanzi/core.ui/graphics3d/render_pass.hpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Render pass rendering and execution order

Using textures created with render passes

Creating render passes

Render pass hierarchy

Creating your own render pass class

Defining the class

RenderPass override functions

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation