source 

The source elements define the access of the
elements vertices, edges and faces to their
geometric entities. At least one source
element is needed for the vertices. If there
are edges a second source element is needed
for accessing the curves in the curve
element by an IDREF_array. If there are
faces the third source element is needed for
accessing the surfaces in the surface
element by an IDREF_array.

Element Information

Model

asset{0,1} , (token_array | IDREF_array | Name_array | bool_array | float_array | int_array | SIDREF_array) , technique_common{0,1} , technique*
Children: IDREF_array, Name_array, SIDREF_array, asset, bool_array, float_array, int_array, technique, technique_common, token_array

Attributes

QName Type Fixed Default Use Inheritable Annotation
id xs:ID required 
The id attribute is a text string containing the unique identifier of this element. 
This value must be unique within the instance document. Required attribute.
name xs:token optional 
The name attribute is the text string name of this element. Optional attribute.

Source 

<xs:element name="source" type="source_type" maxOccurs="unbounded">
  <xs:annotation>
    <xs:documentation>The source elements define the access of the elements vertices, edges and faces to their geometric entities. At least one source element is needed for the vertices. If there are edges a second source element is needed for accessing the curves in the curve element by an IDREF_array. If there are faces the third source element is needed for accessing the surfaces in the surface element by an IDREF_array.</xs:documentation>
  </xs:annotation>
</xs:element>

Sample

< mesh xmlns = "http://www.collada.org/2008/03/COLLADASchema" >

< source id = "Model_E0_MESH_0_REF_1_lib_positions" name = "position" >

< float_array id = "Model_E0_MESH_0_REF_1_lib_positions_array" count = "9" >

-50 -50 0 0 50 0 50 -50 0

</ float_array>

< technique_common>

< accessor count = "3" source = "#Model_E0_MESH_0_REF_1_lib_positions_array" stride = "3" >

< param name = "X" type = "float" />

< param name = "Y" type = "float" />

< param name = "Z" type = "float" />

</ accessor>

</ technique_common>

</ source>

< source id = "Model_E0_MESH_0_REF_1_lib_normals" name = "normal" >

< float_array id = "Model_E0_MESH_0_REF_1_lib_normals_array" count = "9" >

0 0 -1 0 0 -1 0 0 -1

</ float_array>

< technique_common>

< accessor count = "3" source = "#Model_E0_MESH_0_REF_1_lib_normals_array" stride = "3" >