let cube = r##"<?xml version="1.0" encoding="utf-8"?>
<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema" version="1.4.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<asset>
<contributor>
<author>Blender User</author>
<authoring_tool>Blender 2.79.0 commit date:2018-03-22, commit time:14:10, hash:f4dc9f9d68b</authoring_tool>
</contributor>
<created>2018-11-19T22:54:36</created>
<modified>2018-11-19T22:54:36</modified>
<unit name="meter" meter="1"/>
<up_axis>Z_UP</up_axis>
</asset>
<library_images/>
<library_effects>
<effect id="Material-effect">
<profile_COMMON>
<technique sid="common">
<phong>
<specular>
<color sid="specular">0.5 0.5 0.5 1</color>
</specular>
</phong>
</technique>
</profile_COMMON>
</effect>
</library_effects>
<library_materials>
<material id="Material-material" name="Material">
<instance_effect url="#Material-effect"/>
</material>
</library_materials>
<library_geometries>
<geometry id="Cube_001-mesh" name="Cube.001">
<mesh>
<source id="Cube_001-mesh-positions">
<float_array id="Cube_001-mesh-positions-array" count="24">-0.5 -0.5 -0.5 -0.5 -0.5 0.5 -0.5 0.5 -0.5 -0.5 0.5 0.5 0.5 -0.5 -0.5 0.5 -0.5 0.5 0.5 0.5 -0.5 0.5 0.5 0.5</float_array>
<technique_common>
<accessor source="#Cube_001-mesh-positions-array" count="8" stride="3">
<param name="X" type="float"/>
<param name="Y" type="float"/>
<param name="Z" type="float"/>
</accessor>
</technique_common>
</source>
<source id="Cube_001-mesh-normals">
<float_array id="Cube_001-mesh-normals-array" count="18">-1 0 0 0 1 0 1 0 0 0 -1 0 0 0 -1 0 0 1</float_array>
<technique_common>
<accessor source="#Cube_001-mesh-normals-array" count="6" stride="3">
<param name="X" type="float"/>
<param name="Y" type="float"/>
<param name="Z" type="float"/>
</accessor>
</technique_common>
</source>
<vertices id="Cube_001-mesh-vertices">
<input semantic="POSITION" source="#Cube_001-mesh-positions"/>
</vertices>
<triangles material="Material-material" count="12">
<input semantic="VERTEX" source="#Cube_001-mesh-vertices" offset="0"/>
<input semantic="NORMAL" source="#Cube_001-mesh-normals" offset="1"/>
<p>1 0 2 0 0 0 3 1 6 1 2 1 7 2 4 2 6 2 5 3 0 3 4 3 6 4 0 4 2 4 3 5 5 5 7 5 1 0 3 0 2 0 3 1 7 1 6 1 7 2 5 2 4 2 5 3 1 3 0 3 6 4 4 4 0 4 3 5 1 5 5 5</p>
</triangles>
</mesh>
</geometry>
</library_geometries>
<library_controllers/>
<library_visual_scenes>
<visual_scene id="Scene" name="Scene">
<node id="Cube" name="Cube" type="NODE">
<matrix sid="transform">1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1</matrix>
<instance_geometry url="#Cube_001-mesh" name="Cube">
<bind_material>
<technique_common>
<instance_material symbol="Material-material" target="#Material-material"/>
</technique_common>
</bind_material>
</instance_geometry>
</node>
</visual_scene>
</library_visual_scenes>
<scene>
<instance_visual_scene url="#Scene"/>
</scene>
</COLLADA>
"##;
let scene = mesh_loader::collada::from_str(&cube);
if let Ok(scene) = scene {
println!("mat : {:?}", scene.materials);
assert_eq!(scene.materials[0].color.emissive, None);
assert_eq!(scene.materials[0].color.ambient, None);
assert_eq!(scene.materials[0].index_of_refraction, None);
assert_eq!(scene.materials[0].color.diffuse, None);
assert_eq!(scene.materials[0].shininess, None);
}
If some materials are omitted, there are not set to None in
Scene. Instead there are Some with default values.I don't know if that's the behavior wanted. If that the case, it would be nice to see that in the documentation ;-)
Example :