private IDAESceneNode CreateSceneNode(DAELoaderNode loader, visual_scene scene)
{
List <IDAESceneNode> childs = new List <IDAESceneNode>();
foreach (node n in scene.node)
{
DAENode node = new DAENode(n);
IDAESceneNode sceneNode = node.GetSceneNode(loader);
if (sceneNode != null)
{
childs.Add(sceneNode);
}
}
return(loader.Context.CreateGroupNode(scene.id, DAEMatrix4.Identity, childs.ToArray()));
}
internal IDAESceneNode GetSceneNode(DAELoaderNode loader)
{
List <IDAESceneNode> children = new List <IDAESceneNode>();
// load geometry
if (_node.instance_geometry != null && _node.instance_geometry.Length > 0)
{
foreach (var instGeo in _node.instance_geometry)
{
Dictionary <string, string> instanceMaterials = new Dictionary <string, string>();
if (instGeo.bind_material != null)
{
foreach (instance_material instMat in instGeo.bind_material.technique_common)
{
instanceMaterials.Add(instMat.symbol, instMat.target);
}
}
DAEGeometry geo = loader.LibGeometries.GetGeometry(loader, DAEUtils.GetUrl(instGeo.url).Id);
List <IDAEShapeNode> shapes = geo.GetShapeNodes(loader, instanceMaterials, _node.name);
foreach (IDAEShapeNode shape in shapes)
{
children.Add(shape);
}
}
}
// load lights
if (_node.instance_light != null && _node.instance_light.Length > 0)
{
foreach (var instLight in _node.instance_light)
{
IDAESceneNode lightNode = loader.LibLights.GetLightNode(loader, DAEUtils.GetUrl(instLight.url).Id);
if (lightNode != null)
{
children.Add(lightNode);
}
}
}
// load local children
if (_node.node1 != null && _node.node1.Length > 0)
{
foreach (node child in _node.node1)
{
DAENode n = new DAENode(child);
IDAESceneNode childNode = n.GetSceneNode(loader);
if (childNode != null)
{
children.Add(childNode);
}
}
}
// load remote children
if (_node.instance_node != null)
{
foreach (InstanceWithExtra child in _node.instance_node)
{
IDAESceneNode childNode = null;
var url = DAEUtils.GetUrl(child.url);
if (string.IsNullOrEmpty(url.FilePath))
{
childNode = loader.LibNodes.GetSceneNode(loader, url.Id);
}
else
{
var extLoader = loader.GetLoaderForUrl(url);
childNode = extLoader.GetSceneGraph(); //TODO only load node with url.Id
}
if (childNode != null)
{
children.Add(childNode);
}
}
}
// load transformation
DAEMatrix4 finalTrans = DAEMatrix4.Identity;
if (_node.Items != null)
{
for (int i = 0; i < _node.Items.Length; i++)
{
object trans = _node.Items[i];
ItemsChoiceType2 transType = _node.ItemsElementName[i];
if (transType == ItemsChoiceType2.matrix)
{
matrix m = trans as matrix;
DAEMatrix4 k = DAEMatrix4.Identity;
k.M11 = m.Values[0];
k.M12 = m.Values[1];
k.M13 = m.Values[2];
k.M14 = m.Values[3];
k.M21 = m.Values[4];
k.M22 = m.Values[5];
k.M23 = m.Values[6];
k.M24 = m.Values[7];
k.M31 = m.Values[8];
k.M32 = m.Values[9];
k.M33 = m.Values[10];
k.M34 = m.Values[11];
k.M41 = m.Values[12];
k.M42 = m.Values[13];
k.M43 = m.Values[14];
k.M44 = m.Values[15];
finalTrans *= k;
}
else if (transType == ItemsChoiceType2.rotate)
{
rotate r = trans as rotate;
finalTrans *= DAEMatrix4.Rotation(r.Values[0], r.Values[1], r.Values[2], (r.Values[3] * System.Math.PI / 180));
}
else if (transType == ItemsChoiceType2.lookat)
{
//lookat l = trans as lookat;
//finalTrans *= SharpDX.Matrix.LookAtLH(
// new SharpDX.Vector3((float)l.Values[0], (float)l.Values[1], (float)l.Values[2]),
// new SharpDX.Vector3((float)l.Values[3], (float)l.Values[4], (float)l.Values[5]),
// new SharpDX.Vector3((float)l.Values[6], (float)l.Values[7], (float)l.Values[8]));
// not implemented
}
else if (transType == ItemsChoiceType2.scale)
{
TargetableFloat3 s = trans as TargetableFloat3;
finalTrans *= DAEMatrix4.Scaling(s.Values[0], s.Values[1], s.Values[2]);
}
else if (transType == ItemsChoiceType2.translate)
{
TargetableFloat3 t = trans as TargetableFloat3;
finalTrans *= DAEMatrix4.Translation(t.Values[0], t.Values[1], t.Values[2]);
}
else if (transType == ItemsChoiceType2.skew)
{
// not implemented
}
}
}
return(loader.Context.CreateGroupNode(_node.name, finalTrans, children.ToArray()));
}
private IDAESceneNode CreateLightNode(DAELoaderNode loader, light l)
{
IDAESceneNode result = null;
if (l.technique_common.Item is lightTechnique_commonAmbient)
{
var ambLight = l.technique_common.Item as lightTechnique_commonAmbient;
if (ambLight.color != null)
{
result = loader.Context.CreateAmbientLightNode(l.name, GetColor(ambLight.color));
}
}
else if (l.technique_common.Item is lightTechnique_commonDirectional)
{
var dirLight = l.technique_common.Item as lightTechnique_commonDirectional;
if (dirLight.color != null)
{
result = loader.Context.CreateDirectionalLightNode(l.name, GetColor(dirLight.color));
}
}
else if (l.technique_common.Item is lightTechnique_commonPoint)
{
var pointLight = l.technique_common.Item as lightTechnique_commonPoint;
DAEVector4 color;
if (pointLight.color != null)
{
color = GetColor(pointLight.color);
}
else
{
color = new DAEVector4(1, 1, 1, 1);
}
double constantAttenuation = 1;
if (pointLight.constant_attenuation != null)
{
constantAttenuation = pointLight.constant_attenuation.Value;
}
double linearAttenuation = 0;
if (pointLight.linear_attenuation != null)
{
linearAttenuation = pointLight.linear_attenuation.Value;
}
double quadraticAttenuation = 0;
if (pointLight.quadratic_attenuation != null)
{
quadraticAttenuation = pointLight.quadratic_attenuation.Value;
}
result = loader.Context.CreatePointLightNode(l.name, color, constantAttenuation, linearAttenuation, quadraticAttenuation);
}
else if (l.technique_common.Item is lightTechnique_commonSpot)
{
var spotLight = l.technique_common.Item as lightTechnique_commonSpot;
DAEVector4 color;
if (spotLight.color != null)
{
color = GetColor(spotLight.color);
}
else
{
color = new DAEVector4(1, 1, 1, 1);
}
double constantAttenuation = 1;
if (spotLight.constant_attenuation != null)
{
constantAttenuation = spotLight.constant_attenuation.Value;
}
double linearAttenuation = 0;
if (spotLight.linear_attenuation != null)
{
linearAttenuation = spotLight.linear_attenuation.Value;
}
double quadraticAttenuation = 0;
if (spotLight.quadratic_attenuation != null)
{
quadraticAttenuation = spotLight.quadratic_attenuation.Value;
}
double spotExponent = 0;
if (spotLight.falloff_exponent != null)
{
spotExponent = spotLight.falloff_exponent.Value;
}
double spotCutOff = System.Math.PI; // default is 180°
if (spotLight.falloff_angle != null)
{
spotCutOff = spotLight.falloff_angle.Value / 2;
}
else if (l.extra != null && l.extra.Length > 0)
{
foreach (var extra in l.extra)
{
if (extra.technique != null && extra.technique.Length > 0)
{
foreach (var extraTech in extra.technique)
{
if (extraTech.Any != null && extraTech.Any.Length > 0)
{
foreach (var ele in extraTech.Any)
{
if (ele.ChildNodes != null)
{
for (int i = 0; i < ele.ChildNodes.Count; i++)
{
var n = ele.ChildNodes[i];
if (n.Name == "falloff")
{
float angle = 0;
if (float.TryParse(n.InnerText, NumberStyles.Any, CultureInfo.InvariantCulture, out angle))
{
spotCutOff = ((double)angle * System.Math.PI / 180) / 2;
}
}
}
}
}
}
}
}
}
}
result = loader.Context.CreateSpotLightNode(l.name, color, constantAttenuation, linearAttenuation, quadraticAttenuation, spotExponent, spotCutOff);
}
return(result);
}
