Full Name	U3D (Universal 3D)
Format ID	IG_FORMAT_U3D = 79
File Extension(s)	*.u3d
Data Type	Vector image
Data Encoding	Binary
Color Profile Support	No
Multi-Page Support	No
Alpha Channel Support	No
ImageGear 3D Image Support	Yes
ImageGear Raster to Vector Format Conversion Support	No
ImageGear Platforms Support	WIN32, WIN64, .NET, .NET64

ImageGear Supported Versions:

• U3D v. 1.0

ImageGear Supported Features:

• IG_FLTR_DETECTSUPPORT - auto-detection
• IG_FLTR_PAGEREADSUPPORT - single-page file reading
• IG_FLTR_PAGEINSERTSUPPORT - single-page file writing

ImageGear Read Support:

• IG_COMPRESSION_NONE - Vector data

ImageGear Write Support:

• IG_COMPRESSION_NONE - Vector data

ImageGear Filter Control Parameters:

Filter Control Parameter	Type	Default Value	Available Values	Description
BACKCOLOR	AT_INT32	0	0...255	This parameter is used to set background color for image loading. Red, green, and blue components of background color will be set to this value.
WIDTH	AT_INT32	512	Any positive value	Defines the width of the empty DIB associated with the image after loading. DIB height is calculated using the file's scale factors. See Working with Vector Images.

Comments:

U3D file format, short for "Universal 3D", is a universal vector standard for storing three-dimensional data of all kinds to facilitate data exchange. The specification for this format is the document ECMA-363: Universal 3D File Format. The latest edition of this specification is available at the ECMA web site:

http://www.ecma-international.org/

The U3D format is natively supported by PDF, and 3D objects in U3D format can be inserted into PDF document files and interactively visualized by PDF viewers.

The ImageGear U3D Vector component supports reading, writing, and rasterizing the U3D vector files. It provides read and write support for the following features of the Universal 3D format: CLOD Progressive Mesh, Normals, Colors (diffuse and specular), Views, Lights, Textures, Transparency, Linesets, and Pointsets.

U3D Elements Supported for Reading

U3D Element	Supported Attributes	Imported into ImageGear as:
Croup Node	Id	IG_VECT_ENT_BLOCK entity.
Model Node	Id Vertices Normals Material ambient color Material diffuse colors Material specular colors Material emissive colors Reflectivity Opacity Faces Lines Points Texture coordinates Bounding box	IG_VECT_ENT_SHELLEX entity.
View Node	Name Near clip plane Far clip plane Rectangle Focus	HIG_VECT_VIEW object.
Light Node	Position Direction Specular color Ambient color Diffuse color Intensity Attenuations	HIG_VECT_LIGHTSOURCE object.

ImageGear Vector Entities Supported for Writing to U3D Format

ImageGear Entity or Object	Saved as U3D Element
IG_VECT_ENT_BLOCK	Group Node
IG_VECT_ENT_INSERTION	Group Node
IG_VECT_ENT_SHELL	Meshes
IG_VECT_ENT_SHELLEX	Textures Materials Meshes Line set Point set
HIG_VECT_VIEW	View Node
HIG_VECT_LIGHTSOURCE	Light Node