Use Mesh::CreateInfo to describe and create meshes. More...

#include <kanzi/core.ui/platform/graphics_backend/gl/mesh.hpp>

Inheritance diagram for kanzi::Mesh:

Classes
struct	Bone
	Definition of mesh bone, that is used for mesh skinning. More...

struct	Cluster
	Parameters for Mesh::Cluster creation. More...

struct	Skeleton
	Skeleton is for animating mesh with bones. More...

Public Types
typedef pair< AbstractPropertyType, Variant >	PropertyEntry

typedef vector< PropertyEntry >	PropertyContainer

Public Types inherited from kanzi::GPUResource
enum	MemoryType { GpuOnly, GpuAndRam, RamOnly }
	Memory upload and RAM preservation strategy for GPU resources. More...

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
	CreateInfo ()
	Default constructor for mesh create info. More...

void	bind (size_t clusterIndex, ShaderProgramSharedPtr shaderProgram)
	Prepares a cluster from the mesh for rendering with the specified shader. More...

const KzuBoundingVolume *	getBoundingVolume () const
	Returns the bounding volume of the mesh. More...

size_t	getVertexCount () const
	Returns the vertex count of the mesh. More...

size_t	getVertexAttributeCount () const
	Gets the number of the vertex attributes in the mesh. More...

size_t	getVertexSize () const
	Gets size of one vertex in bytes. More...

const void *	getVertexData () const
	Gets raw vertex data. More...

size_t	getClusterCount () const
	Gets the number of clusters in the mesh. More...

size_t	getClusterIndexCount (size_t clusterIndex) const
	Gets the number of indices in a specified cluster. More...

GraphicsPrimitiveType	getClusterPrimitiveType (size_t clusterIndex) const
	Gets the primitive type for the cluster. More...

MaterialSharedPtr	getClusterMaterial (size_t clusterIndex) const
	Gets the cluster material. More...

void	setClusterMaterial (size_t clusterIndex, MaterialSharedPtr material)
	Sets the cluster material. More...

const uint16_t *	getClusterIndexData (size_t clusterIndex) const
	Gets index data for given cluster. More...

bool	updateBoundingBox (Node3D baseNode, const KzcDynamicArray transformedObjectList)
	Updates bounding box of mesh with bones from given model. More...

size_t	getBoneCount () const
	Gets number of bones in mesh. More...

Node3D *	getBoneNode (size_t boneIndex) const
	Gets node for bone. More...

Node3D *	getBoneChildJoint (size_t boneIndex) const
	Gets child node for skeletal animation bone. More...

void	attach (Node *baseNode)
	Attaches a root node for bone node lookup functions. More...

void	detach ()
	Detaches root node, making bone node lookups no longer available. More...

const vector< int > &	acquireAttributeMap (ShaderProgramSharedPtr shaderProgram)
	Gets attribute map for given shader program. More...

void	applySkeleton (Node baseNode, const KzcDynamicArray transformedObjectList)
	Applies bone animation, updating matrix palette transformation uniforms. More...

const MeshVertexAttribute &	getVertexAttribute (int index) const
	Gets mesh vertex attribute with given mesh attribute index. More...

void	bindAttribute (Renderer *renderer, unsigned int shaderAttributeIndex, int meshVertexAttributeIndex)
	Takes one mesh vertex attribute from mesh and makes it usable with (current) shader. More...

unsigned int	bindAttributes (ShaderProgramSharedPtr shaderProgram)
	Makes all mesh vertex attributes available with a shader program. More...

void	bindIndices (size_t clusterIndex)
	Makes mesh cluster indices available to the next draw call. More...

Public Member Functions inherited from kanzi::GPUResource
virtual	~GPUResource () KZ_OVERRIDE

void	invalidate ()
	Notify resource that graphics context was lost and all GPU resources are invalid. More...

unsigned int	getGPUMemoryUsage () const

Renderer *	getRenderer () const

bool	isDeployed () const

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

	Resource (Domain *domain, string_view name)

virtual	~Resource ()

virtual void	loadFromKZB (const ResourceLoaderThreadContext threadContext, KzcInputStream inputStream, const KzuBinaryFileInfo *file)
	Function for loading the resource from .KZB. More...

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 MeshSharedPtr	create (Domain *domain, const CreateInfo &createInfo, string_view name)
	Creates a mesh with specified mesh creation parameters. More...

static MeshSharedPtr	createSphere (Domain *domain, float radius, unsigned int segmentCount, unsigned int rowCount, string_view name, MaterialSharedPtr material=MaterialSharedPtr())
	Creates a mesh with a sphere shape in a single cluster. More...

static MeshSharedPtr	createBox (Domain *domain, Vector3 size, string_view name, MaterialSharedPtr material=MaterialSharedPtr())
	Creates a mesh with a box shape in a single cluster. More...

static MeshSharedPtr	createPlane (Domain *domain, float width, float height, bool invertU, bool invertV, string_view name, MaterialSharedPtr material=MaterialSharedPtr())
	Creates a plane shape. More...

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

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...

Public Attributes
MemoryType	memoryType
	Memory type for the texture. More...

vector< Mesh::CreateInfo::Cluster >	clusters
	Clusters. More...

Box	boundingBox
	Bounding box for mesh. More...

Skeleton	skeleton
	Mesh skeleton for bone animations. More...

MeshAttributeCollection	vertexFormat
	Mesh vertex attributes. More...

size_t	vertexSize
	Size of one vertex in bytes. This is sum of all mesh vertex attributes sizes. More...

size_t	vertexCount
	Number of vertices in the mesh. More...

vector< byte >	vertexData
	Vertex buffer data. More...

PropertyContainer	properties
	Properties to copy to the mesh. More...

struct KANZI_API	CreateInfo

Protected Member Functions
virtual void	reloadOverride () KZ_OVERRIDE
	Resource::reloadOverride() implementation. More...

virtual void	reloadFromKzbOverride (KzcInputStream inputStream, const KzuBinaryFileInfo file) KZ_OVERRIDE
	Resource::reloadFromKzbOverride() implementation. More...

virtual void	reloadFromKzbOverride (KzbFile &kzbFile, ReadOnlyMemoryFile &file, KzbMemoryParser &parser) KZ_OVERRIDE
	Resource::reloadFromKzbOverride() implementation. More...

virtual void	invalidateOverride () KZ_OVERRIDE
	GPUResource::invalidateOverride() implementation. More...

virtual bool	isDeployedOverride () const KZ_OVERRIDE
	GpuResource::isDeployed() implementation. More...

virtual unsigned int	getGPUMemoryUsageOverride () const KZ_OVERRIDE
	GpuResource::getGPUMemoryUsageOverride() implementation. More...

	Mesh (Domain *domain, const CreateInfo &createInfo, string_view name)

Protected Member Functions inherited from kanzi::GPUResource
	GPUResource (Domain *domain, string_view name="")

Protected Member Functions inherited from kanzi::Resource
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)

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::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 &propertyStorage)
	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
void	swap (Mesh &mesh1, Mesh &mesh2)

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

Use Mesh::CreateInfo to describe and create meshes.

Mesh stores the geometry data for rendering Model3d nodes.

Vertex and index listings define meshes. Indices refer to vertices which define the faces of a mesh.

To define a mesh, you need:

Vertex format definition. This definition describes the components that define a vertex. This includes information about the vertex position, texture coordinates, normal, and tangent.
List of vertices. Each vertex contains components that the format definition describes.
List of indices. Indices describe polygons by referring to each vertex by index. When triangles describe a polygon, three indices describe a triangle. You can use several index listings, each of which uses a material.

In Kanzi a mesh can have at most 65536 vertices, a limit set by GLES2. If you need more vertices, create additional meshes.

Examples

To create a cube mesh:

        // Define a CreateInfo structure and set it to keep the data after uploading it to the GPU.
        Mesh::CreateInfo createInfo;
        createInfo.memoryType = GPUResource::GpuAndRam;
        // Describe the format for each vertex. In this example, every vertex has a position in 3D space,
        // texture coordinates pointing to 2D texture space, and normal and tangent data in 3D space.
        // Add to the vertex format description a three-component position.
        // Use the standard Kanzi name kzPosition.
        MeshVertexAttribute position("kzPosition", VertexAttribute::SemanticPosition, 0, GraphicsDataTypeSFLOAT32, 3, ~0u);
        createInfo.vertexFormat.push_back(position);
        // Add to the vertex format description a two-component texture coordinate.
        // Texture coordinates enable you to use textures on a mesh.
        // Use the standard Kanzi name kzTextureCoordinate0.
        MeshVertexAttribute textureCoordinate("kzTextureCoordinate0", VertexAttribute::SemanticTextureCoordinate, 0, GraphicsDataTypeSFLOAT32, 2, ~0u);
        createInfo.vertexFormat.push_back(textureCoordinate);
        // Add to the vertex format description three-component normals.
        // Normals enable you to use lighting on a mesh.
        // Use the standard Kanzi name kzNormal.
        MeshVertexAttribute normal("kzNormal", VertexAttribute::SemanticNormal, 0, GraphicsDataTypeSFLOAT32, 3, ~0u);
        createInfo.vertexFormat.push_back(normal);
        // Add to the vertex format description three-component tangents.
        // Tangents enable you to use normal maps on a mesh.
        // Use the standard Kanzi name kzTangent.
        MeshVertexAttribute tangent("kzTangent", VertexAttribute::SemanticTangent, 0, GraphicsDataTypeSFLOAT32, 3, ~0u);
        createInfo.vertexFormat.push_back(tangent);
        // Now that you added all components to the vertex format description, update the offsets, strides, and vertex size.
        updateVertexAttributeOffsetsAndVertexSize(createInfo);
        updateVertexAttributeStrides(createInfo);
        // Create a cluster. Two triangles define a face. Since a cube has six faces, you must create 36 indices
        // (2 * 3 * 6 = 36). In this example the entire mesh uses a single material, which is why you need only
        // one cluster.
        Mesh::CreateInfo::Cluster cluster(GraphicsPrimitiveTypeTriangles, 36, material, materialUrl);
        createInfo.clusters.push_back(cluster);
        // Create the vertices. Four vertices define one face of a cube. Since cube has six faces, you must
        // create 24 vertices (4 * 6 = 24). Here you create vertex faces with normals that point to the same
        // direction. This makes the faces of a cube appear flat. You cannot reuse vertex positions because the
        // normals for each face are separate.
        {
            createInfo.vertexCount = 24;
            unsigned int dataSize = createInfo.vertexCount * createInfo.vertexSize;
            createInfo.vertexData.resize(dataSize);
            // Define the positions of the cube corners.
            // This example first defines the back face, then the front face.
            const Vector3 cornerPositions[] =
            {
                Vector3(1.0f,  1.0f,  1.0f),
                Vector3(-1.0f,  1.0f,  1.0f),
                Vector3(-1.0f, -1.0f,  1.0f),
                Vector3(1.0f, -1.0f,  1.0f),
                Vector3(1.0f, -1.0f, -1.0f),
                Vector3(1.0f,  1.0f, -1.0f),
                Vector3(-1.0f,  1.0f, -1.0f),
                Vector3(-1.0f, -1.0f, -1.0f)
            };
            // Define vertex indices for all faces.
            const Vector2 UVs[] =
            {
                Vector2(1.0f, 1.0f),
                Vector2(0.0f, 1.0f),
                Vector2(0.0f, 0.0f),
                Vector2(1.0f, 0.0f)
            };
            // Define vertex indices for all faces.
            const unsigned int faceIndices[][4] =
            {
                // Front.
                { 0, 1, 2, 3 },
                // Right.
                { 5, 0, 3, 4 },
                // Back.
                { 6, 5, 4, 7 },
                // Left.
                { 1, 6, 7, 2 },
                // Top.
                { 5, 6, 1, 0 },
                // Bottom.
                { 3, 2, 7, 4 }
            };
            // Define the normals for each face.
            const Vector3 faceNormals[] =
            {
                Vector3(0.0f,  0.0f,  1.0f),
                Vector3(1.0f,  0.0f,  0.0f),
                Vector3(0.0f,  0.0f, -1.0f),
                Vector3(-1.0f,  0.0f,  0.0f),
                Vector3(0.0f,  1.0f,  0.0f),
                Vector3(0.0f, -1.0f,  0.0f)
            };
            // Define tangents for each face.
            const Vector3 faceTangent[] =
            {
                Vector3(1.0f,  0.0f,  0.0f),
                Vector3(0.0f,  0.0f, -1.0f),
                Vector3(-1.0f,  0.0f,  0.0f),
                Vector3(0.0f,  0.0f,  1.0f),
                Vector3(1.0f,  0.0f,  0.0f),
                Vector3(1.0f,  0.0f,  0.0f)
            };
            uint16_t vertexIndex = 0;
            // To generate the vertex data, loop the data arrays you defined above.
            for (unsigned int face = 0; face < 6; ++face)
            {
                // Add two triangles.
                vector<uint16_t>& indexData = createInfo.clusters[0].indexData;
                unsigned int faceBaseIndex = face * 6;
                // The first three vertices of a face define the first triangle...
                indexData[faceBaseIndex + 0] = vertexIndex + 0;
                indexData[faceBaseIndex + 1] = vertexIndex + 1;
                indexData[faceBaseIndex + 2] = vertexIndex + 2;
                // ...and the second triangle uses the two last vertices of the face with the first vertex.
                // These two triangles create a quad.
                indexData[faceBaseIndex + 3] = vertexIndex + 2;
                indexData[faceBaseIndex + 4] = vertexIndex + 3;
                indexData[faceBaseIndex + 5] = vertexIndex + 0;
                // Write vertices for the face.
                for (unsigned int faceCorner = 0; faceCorner < 4; ++faceCorner, ++vertexIndex)
                {
                    unsigned int boxCorner = faceIndices[face][faceCorner];
                    // Write the correct vertex for this corner of each face.
                    writeVertexAttribute(createInfo, vertexIndex, 0, cornerPositions[boxCorner]);
                    // UVs for each face are the same.
                    writeVertexAttribute(createInfo, vertexIndex, 1, UVs[faceCorner]);
                    // Normal is constant throughout the face.
                    writeVertexAttribute(createInfo, vertexIndex, 2, faceNormals[face]);
                    // Tangent is constant throughout the face.
                    writeVertexAttribute(createInfo, vertexIndex, 3, faceTangent[face]);
                }
            }
        }
        // Center the bounding volume in the center of the mesh and set the size of each axis to 1.0f.
        createInfo.boundingBox = Box::fromCenterAndSize(Vector3(0.0f, 0.0f, 0.0f), Vector3(1.0f, 1.0f, 1.0f));
        // Create a mesh from the data you defined in the CreateInfo.
        MeshSharedPtr mesh = Mesh::create(domain, createInfo, "box");

See also: Mesh

Each mesh has one or more clusters. Each cluster has material and primitives. Primitives are typically triangles, they are stored as vertex data and index data.

You can load a mesh resource from a .kzb file or create it with the Mesh::create() function.

Once Mesh has been created with constructor, all primitive data is uploaded to GPU memory and no longer stored in CPU memory in Mesh.

See also: MeshCreateInfo

Member Typedef Documentation

typedef pair<AbstractPropertyType, Variant> kanzi::Mesh::PropertyEntry

typedef vector<PropertyEntry> kanzi::Mesh::PropertyContainer

Constructor & Destructor Documentation

kanzi::Mesh::Mesh	(	Domain *	domain,
		const CreateInfo &	createInfo,
		string_view	name
	)

explicitprotected

Member Function Documentation

kanzi::Mesh::CreateInfo ( )

explicit

Default constructor for mesh create info.

static MeshSharedPtr kanzi::Mesh::create	(	Domain *	domain,
		const CreateInfo &	createInfo,
		string_view	name
	)

static

Creates a mesh with specified mesh creation parameters.

In order to create a mesh, you will need a Mesh::CreateInfo structure that is filled with mesh creation parameters.

Primitive data (vertex and index data) is always deployed to GPU memory when Mesh is created.

Parameters

domain	Domain for the mesh.
createInfo	Mesh creation parameters.
name	Name for the mesh.

Returns: Mesh shared pointer.

static MeshSharedPtr kanzi::Mesh::createSphere	(	Domain *	domain,
		float	radius,
		unsigned int	segmentCount,
		unsigned int	rowCount,
		string_view	name,
		MaterialSharedPtr	material = `MaterialSharedPtr()`
	)

static

Creates a mesh with a sphere shape in a single cluster.

Parameters

radius	Radius of the sphere
segmentCount	Number of segments for the shape
rowCount	Number of rows for the shape
material	Material pointer for the cluster. If set, leave the materialURL parameter empty.
materialURL	Resource address for the cluster material. If set, leave material empty.

Returns: Mesh shared pointer.

static MeshSharedPtr kanzi::Mesh::createBox	(	Domain *	domain,
		Vector3	size,
		string_view	name,
		MaterialSharedPtr	material = `MaterialSharedPtr()`
	)

static

Creates a mesh with a box shape in a single cluster.

Parameters

width	Width of the box (size along the x axis)
height	Height of the box (size along the y axis)
depth	Depth of the box (size along z axis)
material	Material pointer for the cluster. If set, leave the materialURL parameter empty.
materialURL	Resource address for the cluster material. If set, leave the material parameter empty.

Returns: Mesh shared pointer.

static MeshSharedPtr kanzi::Mesh::createPlane	(	Domain *	domain,
		float	width,
		float	height,
		bool	invertU,
		bool	invertV,
		string_view	name,
		MaterialSharedPtr	material = `MaterialSharedPtr()`
	)

static

Creates a plane shape.

Parameters

width	Width of the plane (size along the x axis)
height	Height of the plane (size along the y axis)
invertU	If true, the first texture coordinate is inverted
invertV	If true, the second texture coordinate is inverted
material	Material pointer for the cluster. If set, leave the materialURL parameter empty.
materialURL	Resource address for the cluster material. If set, leave the material parameter empty.

Returns: Mesh shared pointer.

void kanzi::Mesh::bind	(	size_t	clusterIndex,
		ShaderProgramSharedPtr	shaderProgram
	)

Prepares a cluster from the mesh for rendering with the specified shader.

Parameters

clusterIndex	Which cluster to render.
shaderProgram	Which ShaderProgram to render with.

const KzuBoundingVolume* kanzi::Mesh::getBoundingVolume ( ) const

Returns the bounding volume of the mesh.

Returns: Bounding volume for the mesh.

size_t kanzi::Mesh::getVertexCount ( ) const

inline

Returns the vertex count of the mesh.

Returns: Number of vertices in mesh.

size_t kanzi::Mesh::getVertexAttributeCount ( ) const

inline

Gets the number of the vertex attributes in the mesh.

Returns: Number of vertex attributes in mesh.

size_t kanzi::Mesh::getVertexSize ( ) const

inline

Gets size of one vertex in bytes.

Returns: Size of vertex in bytes.

const void* kanzi::Mesh::getVertexData ( ) const

inline

Gets raw vertex data.

User is responsible for casting the data to proper format for reading.

Returns: Raw vertex data or 0 if data was not preserved in RAM.

size_t kanzi::Mesh::getClusterCount ( ) const

inline

Gets the number of clusters in the mesh.

Returns: Number of clusters in the mesh.

size_t kanzi::Mesh::getClusterIndexCount ( size_t clusterIndex ) const

Gets the number of indices in a specified cluster.

Parameters

clusterIndex Which cluster to query

Returns: Number of indices in the cluster.

GraphicsPrimitiveType kanzi::Mesh::getClusterPrimitiveType ( size_t clusterIndex ) const

Gets the primitive type for the cluster.

Parameters

clusterIndex Which cluster to query

Returns: The primitive type for the cluster.

MaterialSharedPtr kanzi::Mesh::getClusterMaterial ( size_t clusterIndex ) const

Gets the cluster material.

Parameters

clusterIndex Which cluster to query

Returns: The material for the cluster.

void kanzi::Mesh::setClusterMaterial	(	size_t	clusterIndex,
		MaterialSharedPtr	material
	)

Sets the cluster material.

Parameters

clusterIndex	The cluster for which to set the material
material	The material to apply to the cluster

const uint16_t* kanzi::Mesh::getClusterIndexData ( size_t clusterIndex ) const

Gets index data for given cluster.

Parameters

clusterIndex Which cluster to query

Returns: Raw cluster index data or 0 if data was not preserved in RAM.

bool kanzi::Mesh::updateBoundingBox	(	Node3D *	baseNode,
		const KzcDynamicArray *	transformedObjectList
	)

Updates bounding box of mesh with bones from given model.

Parameters

baseNode	Node from which bones are located from.
transformedObjectList	List of transformed objects, from which bones are retrieved from.

Returns: True if mesh is skinned, otherwise false.

size_t kanzi::Mesh::getBoneCount ( ) const

Gets number of bones in mesh.

Returns: number of bones in mesh.

Node3D* kanzi::Mesh::getBoneNode ( size_t boneIndex ) const

Gets node for bone.

The node is looked up from the latest node that was attached to the mesh with attach() function.

See also: attach()

Parameters

boneIndex index of bone.

Returns: Node for bone.

Node3D* kanzi::Mesh::getBoneChildJoint ( size_t boneIndex ) const

Gets child node for skeletal animation bone.

The node is looked up from the latest node that was attached to the mesh with attach() function.

See also: attach()

Parameters

boneIndex index of bone.

Returns: Node for bone.

void kanzi::Mesh::attach ( Node * baseNode )

Attaches a root node for bone node lookup functions.

See also: getBoneNode(); getBoneChildJoint()

Parameters

baseNode Root node for bone node lookups.

void kanzi::Mesh::detach ( )

Detaches root node, making bone node lookups no longer available.

See also: attach()

const vector<int>& kanzi::Mesh::acquireAttributeMap ( ShaderProgramSharedPtr shaderProgram )

Gets attribute map for given shader program.

In attribute map keys to are mesh attribute indices and values are shader attribute indices.

Parameters

shaderProgram Shader program.

Returns: Attribute map (mesh attribute index -> shader attribute index).

void kanzi::Mesh::applySkeleton	(	Node *	baseNode,
		const KzcDynamicArray *	transformedObjectList
	)

Applies bone animation, updating matrix palette transformation uniforms.

Parameters

baseNode	Root node for bones.
transformedObjectList	Transformed nodes.

const MeshVertexAttribute& kanzi::Mesh::getVertexAttribute ( int index ) const

Gets mesh vertex attribute with given mesh attribute index.

Parameters

index Mesh vertex attribute index.

Returns: Mesh vertex attribute.

void kanzi::Mesh::bindAttribute	(	Renderer *	renderer,
		unsigned int	shaderAttributeIndex,
		int	meshVertexAttributeIndex
	)

Takes one mesh vertex attribute from mesh and makes it usable with (current) shader.

Parameters

renderer	Renderer.
shaderAttributeIndex	Shader attribute index. This is the target, where attribute data is directed.
meshVertexAttributeIndex	Mesh attribute index. This is the source, where attibute data is taken from.

unsigned int kanzi::Mesh::bindAttributes ( ShaderProgramSharedPtr shaderProgram )

Makes all mesh vertex attributes available with a shader program.

Parameters

shaderProgram Shader program

Returns: Bitfield: nth bit indicates that nth shader attribute was sourced from the mesh.

void kanzi::Mesh::bindIndices ( size_t clusterIndex )

Makes mesh cluster indices available to the next draw call.

Parameters

clusterIndex Index of cluster to prepare.

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

static

virtual void kanzi::Mesh::reloadOverride ( )

protectedvirtual

Resource::reloadOverride() implementation.

Reimplemented from kanzi::Resource.

virtual void kanzi::Mesh::reloadFromKzbOverride	(	KzcInputStream *	inputStream,
		const KzuBinaryFileInfo *	file
	)

protectedvirtual

Resource::reloadFromKzbOverride() implementation.

Reimplemented from kanzi::Resource.

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

protectedvirtual

Resource::reloadFromKzbOverride() implementation.

Reimplemented from kanzi::Resource.

virtual void kanzi::Mesh::invalidateOverride ( )

protectedvirtual

GPUResource::invalidateOverride() implementation.

Reimplemented from kanzi::GPUResource.

virtual bool kanzi::Mesh::isDeployedOverride ( ) const

protectedvirtual

GpuResource::isDeployed() implementation.

Implements kanzi::GPUResource.

virtual unsigned int kanzi::Mesh::getGPUMemoryUsageOverride ( ) const

protectedvirtual

GpuResource::getGPUMemoryUsageOverride() implementation.

Reimplemented from kanzi::GPUResource.

Friends And Related Function Documentation

void swap	(	Mesh &	mesh1,
		Mesh &	mesh2
	)

friend

Member Data Documentation

MemoryType kanzi::Mesh::memoryType

Memory type for the texture.

If Gpu is not included, texture will not be deployed when created. If Ram is not included, texture will not contain images after it has been deployed. Default value is GpuOnly.

See also: MemoryType

vector<Mesh::CreateInfo::Cluster> kanzi::Mesh::clusters

Clusters.

Box kanzi::Mesh::boundingBox

Bounding box for mesh.

Skeleton kanzi::Mesh::skeleton

Mesh skeleton for bone animations.

MeshAttributeCollection kanzi::Mesh::vertexFormat

Mesh vertex attributes.

size_t kanzi::Mesh::vertexSize

Size of one vertex in bytes. This is sum of all mesh vertex attributes sizes.

size_t kanzi::Mesh::vertexCount

Number of vertices in the mesh.

vector<byte> kanzi::Mesh::vertexData

Vertex buffer data.

PropertyContainer kanzi::Mesh::properties

Properties to copy to the mesh.

Currently they are not used.

struct KANZI_API kanzi::Mesh::CreateInfo

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

kanzi/core.ui/graphics3d/mesh_create_info.hpp
kanzi/core.ui/platform/graphics_backend/gl/mesh.hpp

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