H3D API  2.4.1
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H3D::ImageTexture Class Reference

The ImageTexture node defines a texture map by specifying an image file and general parameters for mapping to geometry. More...

#include <H3D/ImageTexture.h>

Inheritance diagram for H3D::ImageTexture:
Inheritance graph

Classes

class  CouldNotLoadImage
 CouldNotLoadImage is thrown when not any of the urls could be read with any of the image loaders in a ImageTexture. More...
 
class  SFImage
 SFImage is overridden to update the value from the url and imageLoader fields of the ImageTexture. More...
 
struct  SharedImage
 A shared texture. More...
 

Public Types

typedef TypedMFNode< H3DImageLoaderNodeMFImageLoader
 A MFNode containing ImageLoader.
 
- Public Types inherited from H3D::X3DTexture2DNode
typedef DependentSFNode< FieldRef< TextureProperties, Field, &TextureProperties::propertyChanged > > SFTextureProperties
 The SFTextureProperties is dependent on the propertyChanged field of the contained TextureProperties.
 
- Public Types inherited from H3D::Node
typedef std::map< Node *, Node * > DeepCopyMap
 A map type used during a deep copy clone() to map from original nodes to cloned nodes.
 
- Public Types inherited from H3D::X3DUrlObject
enum  LoadStatus { INIT , LOADED , LOADING , FAILED }
 The load status of the given url. More...
 

Public Member Functions

 ImageTexture (Inst< DisplayList > _displayList=0, Inst< SFNode > _metadata=0, Inst< MFString > _url=0, Inst< SFBool > _repeatS=0, Inst< SFBool > _repeatT=0, Inst< SFBool > _scaleToP2=0, Inst< SFImage > _image=0, Inst< MFImageLoader > _imageLoader=0, Inst< SFTextureProperties > _textureProperties=0, Inst< SFString > _loadInThread=0, Inst< SFBool > _canShare=0)
 Constructor.
 
virtual void render ()
 render() is overridden to include the url in error messages.
 
virtual void postRender ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void preRender ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void enableTexturing ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void disableTexturing ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual GLuint getTextureId ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual GLuint getTextureUnit ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual GLenum getTextureTarget ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual int getTextureWidth ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual int getTextureHeight ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual int getTextureDepth ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void setTextureId (GLuint id)
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void setTextureUnit (GLint unit)
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void setTextureTarget (GLenum target)
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void setTextureWidth (int _width)
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void setTextureHeight (int _height)
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void setTextureDepth (int _depth)
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual bool makeResident ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void makeNonResident ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual bool isResident ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual GLuint64 getTextureHandle ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void invalidateTextureHandle ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual void inUse ()
 Overridden virtual function to perform the same function on the correct shared texture from the database.
 
virtual ImagerenderToImage (H3DInt32 _width, H3DInt32 _height, bool output_float_texture=false)
 override the render to image function, to download the texture_id directly from graphic card
 
virtual std::pair< H3DInt32, H3DInt32getDefaultSaveDimensions ()
 Returns the default dimensions to use when this texture is saved to file. More...
 
virtual GLint glInternalFormat (Image *i)
 Returns the internal OpenGL format to use given an Image, e.g. More...
 
- Public Member Functions inherited from H3D::X3DTexture2DNode
 X3DTexture2DNode (Inst< DisplayList > _displayList=0, Inst< SFNode > _metadata=0, Inst< SFBool > _repeatS=0, Inst< SFBool > _repeatT=0, Inst< SFBool > _scaleToP2=0, Inst< SFImage > _image=0, Inst< SFTextureProperties > _textureProperties=0)
 Constructor.
 
virtual void renderTextureProperties ()
 Render all OpenGL texture properties.
 
virtual void glTexImage (Image *_image, GLenum _texture_target, bool scale_to_power_of_two)
 Installs the given image as a OpenGL texture with a call to the glTexImage2D function. More...
 
virtual void renderSubImage (Image *_image, GLenum _texture_target, int xoffset, int yoffset, int width, int height)
 Replaces part of the current texture from an image.
 
virtual GLenum glPixelFormat (Image *_image)
 Returns the OpenGL pixel format to use given an Image, e.g.
 
- Public Member Functions inherited from H3D::H3DSingleTextureNode
 H3DSingleTextureNode (Inst< DisplayList > _displayList=0, Inst< SFNode > _metadata=0, Inst< UpdateSaveToURL > _saveToUrl=0, Inst< SFBool > _saveSuccess=0, Inst< SFInt32 > _saveHeight=0, Inst< SFInt32 > _saveWidth=0)
 Constructor.
 
virtual ~H3DSingleTextureNode ()
 Destructor.
 
void addShaderField (Field &_field)
 Add a shader field which contains this texture node. More...
 
void removeShaderField (Field &_field)
 Remove a shader field which contains this texture node. More...
 
- Public Member Functions inherited from H3D::X3DTextureNode
 X3DTextureNode (Inst< DisplayList > _displayList=0, Inst< SFNode > _metadata=0, Inst< UpdateSaveToURL > _saveToUrl=0, Inst< SFBool > _saveSuccess=0, Inst< SFInt32 > _saveHeight=0, Inst< SFInt32 > _saveWidth=0)
 Constructor.
 
virtual string defaultXMLContainerField ()
 Returns the default xml containerField attribute value. More...
 
virtual GLbitfield getAffectedGLAttribs ()
 Returns a bitmask of the OpenGL attrib bits that will be affected by this node. More...
 
virtual Vec3f textureSize ()
 Sometimes the texture represents a volume in space, e.g. More...
 
virtual GLuint renderImage (Image *image, GLenum texture_target, bool scale_to_power_of_two)
 Installs the image as a OpenGL texture. More...
 
virtual GLenum glPixelComponentType (Image *image)
 Returns the OpenGL pixel compnent type to use given an Image, e.g. More...
 
- Public Member Functions inherited from H3D::X3DAppearanceChildNode
 X3DAppearanceChildNode (Inst< DisplayList > _displayList=0, Inst< SFNode > _metadata=0)
 Constructor.
 
- Public Member Functions inherited from H3D::X3DNode
 X3DNode (Inst< SFNode > _metadata=0)
 Constructor.
 
X3DMetadataObjectgetMetadataByName (const string &_name)
 Given a name, the first X3DMetadataObject in the metadata field that matches that name is returned. More...
 
- Public Member Functions inherited from H3D::Node
 Node ()
 Constructor.
 
virtual Nodeclone (bool deepCopy=true, DeepCopyMap *deepCopyMap=NULL)
 Returns a new instance of this node type with the same state as this one. More...
 
virtual ~Node ()
 Destructor.
 
X3DPrototypeInstancegetProtoInstanceParent ()
 If this node is the root node in the proto body of a X3DPrototypeInstance then this will return that node. More...
 
void setProtoInstanceParent (X3DPrototypeInstance *p)
 Set the X3DPrototypeInstance this node is the the root node if applicaple.
 
virtual void traverseSG (TraverseInfo &ti)
 traverseSG is called once per scenegraph loop on the scene in order to traverse the scenegraph. More...
 
virtual bool lineIntersect (const Vec3f &from, const Vec3f &to, LineIntersectResult &result)
 Detect intersection between a line segment and the Node. More...
 
virtual void closestPoint (const Vec3f &p, NodeIntersectResult &result)
 Find closest point on Node to p. More...
 
virtual bool movingSphereIntersect (H3DFloat radius, const Vec3f &from, const Vec3f &to, NodeIntersectResult &result)
 Detect collision between a moving sphere and the Node. More...
 
virtual FieldgetField (const string &_name) const
 return a pointer to the field specified by name within this instance
 
int addDestructCallback (void(*func)(Node *, void *), void *args)
 Add a callback function to be run on destruction of node. More...
 
int removeDestructCallback (void(*func)(Node *, void *), void *args)
 Add a callback function to be run on destruction of node. More...
 
- Public Member Functions inherited from H3D::H3DDisplayListObject
 H3DDisplayListObject (Inst< DisplayList > _displayList=0)
 Constructor.
 
- Public Member Functions inherited from H3D::H3DImageObject
 H3DImageObject (Inst< SFImage > _image=0)
 Constructor.
 
- Public Member Functions inherited from H3D::X3DUrlObject
 X3DUrlObject (Inst< MFString > _url=0)
 Constructor.
 
virtual LoadStatus loadStatus ()
 The loadStatus function returns the status of the loading of the current urls in order to be used with the LoadSensor node.
 
virtual H3DFloat loadProgress ()
 The loadProgress() functions returns a value between 0 and 1 indicating how much of the current url has been loaded. More...
 
void setURLUsed (const string &_url_used)
 Set the url that is currently loaded.
 
const string & getURLUsed ()
 Get the url that is currently loaded.
 
void setURLBase (const string &_url_base)
 Set the url base address.
 
const string & getURLBase ()
 Get the current url base address.
 
string resolveURLAsFile (const string &url, bool *is_tmp_file=NULL)
 Get the url as a local file.
 
string resolveURLAsString (const string &url)
 Get the content of the URL as a string.
 
bool removeTmpFile (const string &file)
 Remove a tmpfile with the given name. More...
 

Public Attributes

H3DUniquePtr< MFImageLoaderimageLoader
 The ImageLoader nodes to use to read the image files. More...
 
H3DUniquePtr< SFStringloadInThread
 Specifies the thread to use to load the image texture. More...
 
H3DUniquePtr< SFBoolcanShare
 Share image data for URLs that are the same. More...
 
- Public Attributes inherited from H3D::X3DTexture2DNode
H3DUniquePtr< SFBoolrepeatS
 If true the texture will repeat itself when the s texture coordinate is outside the range [0,1]. More...
 
H3DUniquePtr< SFBoolrepeatT
 If true the texture will repeat itself when the t texture coordinate is outside the range [0,1]. More...
 
H3DUniquePtr< SFBoolscaleToPowerOfTwo
 If true the image used will be scaled so that the dimensions are a power of two if they are not. More...
 
H3DUniquePtr< SFTexturePropertiestextureProperties
 The textureProperties field contains a TextureProperties node which allows fine control over a texture's application. More...
 
H3DUniquePtr< UpdateTextureProperties > updateTextureProperties
 Field that will make sure that the texture properties changes are transferred to the texture when changed. More...
 
- Public Attributes inherited from H3D::X3DTextureNode
H3DUniquePtr< UpdateSaveToURLsaveToUrl
 When a new value is specified for saveToUrl the current texture is rendered to a buffer and saved to the specified filename. More...
 
H3DUniquePtr< SFBoolsaveSuccess
 Contains the result of the last save operation. More...
 
H3DUniquePtr< SFInt32saveHeight
 The height of the image to write to file when the saveToUrl field is used. More...
 
H3DUniquePtr< SFInt32saveWidth
 The width of the image to write to file when the saveToUrl field is used. More...
 
- Public Attributes inherited from H3D::X3DNode
H3DUniquePtr< SFNodemetadata
 Meta data about the node. More...
 
- Public Attributes inherited from H3D::H3DDisplayListObject
H3DUniquePtr< DisplayListdisplayList
 The DisplayList instance handling the OpenGL caching of this object.
 
- Public Attributes inherited from H3D::H3DImageObject
H3DUniquePtr< SFImageimage
 Field containing the Image to use as a texture.
 
- Public Attributes inherited from H3D::X3DUrlObject
H3DUniquePtr< MFStringurl
 The urls in decreasing order of preference.
 

Static Public Attributes

static H3DNodeDatabase database
 The H3DNodeDatabase for this node.
 
- Static Public Attributes inherited from H3D::X3DTexture2DNode
static H3DNodeDatabase database
 The H3DNodeDatabase for this node.
 
- Static Public Attributes inherited from H3D::X3DTextureNode
static bool load_images_in_separate_thread = true
 This is the default value for the GlobalSettings::loadTexturesInThread field. More...
 
static H3DNodeDatabase database
 The H3DNodeDatabase for this node.
 
- Static Public Attributes inherited from H3D::X3DNode
static H3DNodeDatabase database
 The H3DNodeDatabase for this node.
 

Protected Member Functions

bool useSharing ()
 Returns true if texture sharing should be enabled.
 
void removeSharedImage ()
 If this image is currently referencing some shared texture, remove this reference If there are no other references, the texture is deleted.
 
bool addSharedImage (std::vector< std::string > _urls)
 Add a reference to, or create as needed, a shared texture with this url.
 
bool texturePropertiesMatching (const ImageTexture *wrapped_image)
 Check if all the texture properties are matching those in the wrapped_image.
 
- Protected Member Functions inherited from H3D::X3DTextureNode
GLint glCompressedInternalFormat (GLint _format, const std::string &_compression)
 Given a non-compressed internal format, return an equivelent compressed format based on the compression settings. More...
 
- Protected Member Functions inherited from H3D::Node
void cloneFieldValue (Field &_from, Field &_to, bool deepCopy, DeepCopyMap &deepCopyMap)
 A helper function for the clone() method. More...
 
- Protected Member Functions inherited from H3D::X3DUrlObject
string resolveURL (const string &_url, bool return_contents, bool *is_tmp_file=NULL)
 Helper function for resolveURLAs*() functions.
 
void addInlinePrefix (const string &s)
 Add a inline prefix that this node supports.
 
int getInlinedContentOffset (const std::string &url)
 If the URL contains any inline prefix, return the index of the start of the inlined content. More...
 

Protected Attributes

H3DUniquePtr< H3DUtil::SimpleThreadload_thread
 The thread used for downloading images when load_images_in_separate_thread is true.
 
ImageTexturewrapped_image
 Pointer to the shared texture currently in use, or NULL.
 
- Protected Attributes inherited from H3D::X3DTexture2DNode
H3DUniquePtr< FieldimageUpdated
 Field to indicate image is modified C++ only field.
 
H3DUniquePtr< FieldtextureUpdated
 Field which is used to trigger an update of the texture when it has been modified through some functions. More...
 
- Protected Attributes inherited from H3D::H3DSingleTextureNode
GLuint64 texture_handle
 The texture handle (GPU)
 
GLuint texture_id
 The OpenGL texture id of the installed texture, 0 if not installed.
 
GLint texture_unit
 The OpenGL texture unit that is used to render this texture. More...
 
GLenum texture_target
 The OpenGL texture target that is used to render this texture.
 
int texture_width
 texture width
 
int texture_height
 texture height
 
int texture_depth
 texture depth
 
Field::FieldVector shader_fields
 Shader fields which contain this texture.
 
H3DTime last_used
 Time-stamp at which this texture was last used.
 
bool is_resident
 True if this texture is currently resident.
 
- Protected Attributes inherited from H3D::X3DUrlObject
string url_used
 If loadStatus() returns LOADED this string should contain the url that is loaded. More...
 
string url_base
 The base URL for urls in this url object. More...
 
list< string > supported_inline_prefixes
 A list of inline prefixes that are supported by this url object. More...
 

Static Protected Attributes

static ImageDatabase image_database
 The shared texture database.
 
- Static Protected Attributes inherited from H3D::H3DSingleTextureNode
static TextureVector resident_textures
 List of all currently resident textures.
 

Additional Inherited Members

- Static Public Member Functions inherited from H3D::H3DSingleTextureNode
static void makeUnusedTexturesNonResident (H3DTime _unusedTime)
 Look at all resident textures and make those that have not been used recently non-resident. More...
 
- Static Public Member Functions inherited from H3D::X3DTextureNode
static X3DTextureNodegetActiveTexture ()
 Gets the currently active texture, i.e. More...
 
static void setActiveTexture (X3DTextureNode *t)
 Set the active texture. More...
 
- Static Public Member Functions inherited from H3D::Node
static unsigned int nrNodesAlive ()
 Returns the nr of nodes currently alive, i.e. nodes created but not destructed.
 
static int nrNodesCreated ()
 Returns the number of nodes created in total since the start of the program.
 
- Protected Types inherited from H3D::H3DSingleTextureNode
typedef std::vector< H3DSingleTextureNode * > TextureVector
 }
 
- Static Protected Member Functions inherited from H3D::Node
static NodegetClonedInstance (Node *original, bool deepCopy, DeepCopyMap &deepCopyMap)
 A helper function for nodes that implement clone() More...
 

Detailed Description

The ImageTexture node defines a texture map by specifying an image file and general parameters for mapping to geometry.

The texture is read from the URL specified by the url field using the ImageLoader nodes from the imageLoader field. The texture used will be the first texture that is successfully loaded. Each file in the url field be tried with the first ImageLoader, if none of those succeed the next ImageLoader will be tried on all the urls and so on.

Examples:

Internal routes:

Member Function Documentation

◆ getDefaultSaveDimensions()

std::pair< H3DInt32, H3DInt32 > ImageTexture::getDefaultSaveDimensions ( )
virtual

Returns the default dimensions to use when this texture is saved to file.

Returns the dimensions of the Image object

Reimplemented from H3D::X3DTexture2DNode.

References getDefaultSaveDimensions(), H3D::X3DTexture2DNode::getDefaultSaveDimensions(), and wrapped_image.

Referenced by getDefaultSaveDimensions().

◆ glInternalFormat()

GLint ImageTexture::glInternalFormat ( Image i)
virtual

Returns the internal OpenGL format to use given an Image, e.g.

GL_LUMINANCE, GL_RGB, GL_RGB8, etc

Reimplemented from H3D::X3DTexture2DNode.

References H3D::X3DTextureNode::glInternalFormat(), H3D::TextureProperties::glInternalFormat(), and H3D::X3DTexture2DNode::textureProperties.

Member Data Documentation

◆ canShare

H3DUniquePtr< SFBool > H3D::ImageTexture::canShare

Share image data for URLs that are the same.

Also requires global GraphicsOption to enable.

Note: Images with the same URL and different properties are not handled and therefore you should use this option to disable sharing of such textures.

Default value: true
Access type: inputOutput

Referenced by addSharedImage(), ImageTexture(), and useSharing().

◆ imageLoader

H3DUniquePtr< MFImageLoader > H3D::ImageTexture::imageLoader

The ImageLoader nodes to use to read the image files.

Access type: inputOutput
Default value: FreeImageLoader

Referenced by addSharedImage(), and ImageTexture().

◆ loadInThread

H3DUniquePtr< SFString > H3D::ImageTexture::loadInThread

Specifies the thread to use to load the image texture.

If "DEFAULT" then the setting in GlobalSettings will be used. If "MAIN" then the main thread is used to load the texture. If "SEPARATE" then a new thread is created and used to load the texture.

Access type: inputOutput
Default value: "DEFAULT"
Valid values: "DEFAULT", "MAIN", "SEPARATE"

Referenced by addSharedImage(), ImageTexture(), and H3D::ImageTexture::SFImage::update().


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