Geometry element

The Geometry element defines a mesh by providing either a .geom file link or textual vertices and faces of data.

Reference to .geom file

In the first case, within the <Geometry> element you find a file attribute, like this:

<Geometry name="graphic_context|itemName" file="graphic_context\graphic_context_itemName.geom" version="1"/>

Providing details of vertices and faces

In the second case, no file attribute is defined but both <vertices> and <faces> child elements are defined with the attribute num defining their child elements number.

Code example

This is a code example for the <Geometry> element.

<Geometry name="graphic_context|itemName" version="1">

<vertices num="3">

<vertex position="0.5 0.0 0.5" normal="0.0 -1.0 0.0" tangent="-1.0 0.0 -0.0" binormal="0.0 0.0 -1.0" uv0="0.0 0.0" uv2="0.0 0.0" />

<vertex position="-0.5 0.0 0.5" normal="0.0 -1.0 0.0" tangent="-1.0 0.0 -0.0" binormal="0.0 0.0 -1.0" uv0="1.0 0.0" uv2="1.0 0.0" />

<vertex position="-0.5 0.0 -0.5" normal="0.0 -1.0 0.0" tangent="-1.0 0.0 -0.0" binormal="0.0 0.0 -1.0" uv0="1.0 1.0" uv2="1.0 1.0" />

</vertices>

<faces num="1">

<face indices="0 1 2"/>

</faces>

</Geometry>

Note: The .geom binary file is strictly recommended while the textual geometry can be very handy for test/debug purposes.

<vertex>

The Vertex element provides a single vertex data.

<face>

The Face element has an indices attribute.

Code example

The code example below creates a triangle connecting the first, the second, and the third previously defined vertices and in that exact order (first to second, second to third, third to first). Only polygons are allowed.

<face indices="0 1 2"/>