/// <summary>
/// Carga la escena a partir de un objeto TgcSceneData ya parseado
/// </summary>
/// <param name="sceneData">Objeto con datos de la escena ya parseados</param>
/// <param name="mediaPath">Path a partir del cual hay que buscar los recursos de escena (Texturas, LightMaps, etc.)</param>
/// <returns></returns>
public TgcScene loadScene(TgcSceneData sceneData, string mediaPath)
{
TgcScene tgcScene = new TgcScene(sceneData.name, null);
//Cargar Texturas
TgcSceneLoaderMaterialAux[] materialsArray = new TgcSceneLoaderMaterialAux[sceneData.materialsData.Length];
for (int i = 0; i < sceneData.materialsData.Length; i++)
{
TgcMaterialData materialData = sceneData.materialsData[i];
string texturesPath = mediaPath + sceneData.texturesDir + "\\";
//Crear StandardMaterial
if (materialData.type.Equals(TgcMaterialData.StandardMaterial))
{
materialsArray[i] = createTextureAndMaterial(materialData, texturesPath);
}
//Crear MultiMaterial
else if (materialData.type.Equals(TgcMaterialData.MultiMaterial))
{
TgcSceneLoaderMaterialAux matAux = new TgcSceneLoaderMaterialAux();
materialsArray[i] = matAux;
matAux.subMaterials = new TgcSceneLoaderMaterialAux[materialData.subMaterials.Length];
for (int j = 0; j < materialData.subMaterials.Length; j++)
{
matAux.subMaterials[j] = createTextureAndMaterial(materialData.subMaterials[j], texturesPath);
}
}
}
//Cargar Meshes
for (int i = 0; i < sceneData.meshesData.Length; i++)
{
TgcMeshData meshData = sceneData.meshesData[i];
TgcMesh tgcMesh = null;
//Crear malla original
if (meshData.instanceType.Equals(TgcMeshData.ORIGINAL))
{
//Crear mesh que no tiene Material, con un color simple
if (meshData.materialId == -1)
{
tgcMesh = crearMeshSoloColor(meshData);
}
//Para los que si tienen Material
else
{
//Crear MeshFormat que soporte LightMaps
if (meshData.lightmapEnabled)
{
tgcMesh = crearMeshDiffuseMapLightmap(sceneData, mediaPath, materialsArray, meshData);
}
//Formato de Mesh con Textura pero sin Lightmap
else
{
tgcMesh = crearMeshDiffuseMap(materialsArray, meshData);
}
}
}
//Crear malla instancia
else if (meshData.instanceType.Equals(TgcMeshData.INSTANCE))
{
tgcMesh = crearMeshInstance(meshData, tgcScene.Meshes);
}
//Crear BoundingBox, aprovechar lo que viene del XML o crear uno por nuestra cuenta
if (meshData.pMin != null && meshData.pMax != null)
{
tgcMesh.BoundingBox = new TgcBoundingBox(
TgcParserUtils.float3ArrayToVector3(meshData.pMin),
TgcParserUtils.float3ArrayToVector3(meshData.pMax)
);
}
else
{
tgcMesh.createBoundingBox();
}
//Cargar layer
tgcMesh.Layer = meshData.layerName;
//Cargar AlphaBlending
tgcMesh.AlphaBlendEnable = meshData.alphaBlending;
//agregar mesh a escena
tgcMesh.Enabled = true;
tgcScene.Meshes.Add(tgcMesh);
//Cargar userProperties, si hay
tgcMesh.UserProperties = meshData.userProperties;
}
//BoundingBox del escenario, utilizar el que viene del XML o crearlo nosotros
if (sceneData.pMin != null && sceneData.pMax != null)
{
tgcScene.BoundingBox = new TgcBoundingBox(
new Vector3(sceneData.pMin[0], sceneData.pMin[1], sceneData.pMin[2]),
new Vector3(sceneData.pMax[0], sceneData.pMax[1], sceneData.pMax[2])
);
}
else
{
List<TgcBoundingBox> boundingBoxes = new List<TgcBoundingBox>();
foreach (TgcMesh mesh in tgcScene.Meshes)
{
boundingBoxes.Add(mesh.BoundingBox);
}
tgcScene.BoundingBox = TgcBoundingBox.computeFromBoundingBoxes(boundingBoxes);
}
//Cargar parte de PortalRendering, solo hay información
if (sceneData.portalData != null)
{
TgcPortalRenderingLoader portalLoader = new TgcPortalRenderingLoader();
tgcScene.PortalRendering = portalLoader.loadFromData(tgcScene, sceneData.portalData);
}
return tgcScene;
}
/// <summary>
/// Crea un mesh con uno o varios DiffuseMap y un Lightmap
/// </summary>
/// <returns></returns>
private TgcMesh crearMeshDiffuseMapLightmap(TgcSceneData sceneData, string mediaPath, TgcSceneLoaderMaterialAux[] materialsArray, TgcMeshData meshData)
{
//Crear Mesh
Mesh mesh = new Mesh(meshData.coordinatesIndices.Length / 3, meshData.coordinatesIndices.Length, MeshFlags.Managed, DiffuseMapAndLightmapVertexElements, device);
//Cargar vertexBuffer
using (VertexBuffer vb = mesh.VertexBuffer)
{
GraphicsStream data = vb.Lock(0, 0, LockFlags.None);
for (int j = 0; j < meshData.coordinatesIndices.Length; j++)
{
DiffuseMapAndLightmapVertex v = new DiffuseMapAndLightmapVertex();
//vertices
int coordIdx = meshData.coordinatesIndices[j] * 3;
v.Position = new Vector3(
meshData.verticesCoordinates[coordIdx],
meshData.verticesCoordinates[coordIdx + 1],
meshData.verticesCoordinates[coordIdx + 2]
);
//normals
//puede haber una normal compartida para cada vertice del mesh
if (meshData.verticesNormals.Length == meshData.verticesCoordinates.Length)
{
v.Normal = new Vector3(
meshData.verticesNormals[coordIdx],
meshData.verticesNormals[coordIdx + 1],
meshData.verticesNormals[coordIdx + 2]
);
}
//o una normal propia por cada vertice de cada triangulo (version mejorada del exporter)
else
{
int normalIdx = j * 3;
v.Normal = new Vector3(
meshData.verticesNormals[normalIdx],
meshData.verticesNormals[normalIdx + 1],
meshData.verticesNormals[normalIdx + 2]
);
}
//texture coordinates diffuseMap
int texCoordIdx = meshData.texCoordinatesIndices[j] * 2;
v.Tu0 = meshData.textureCoordinates[texCoordIdx];
v.Tv0 = meshData.textureCoordinates[texCoordIdx + 1];
//texture coordinates LightMap
int texCoordIdxLM = meshData.texCoordinatesIndicesLightMap[j] * 2;
v.Tu1 = meshData.textureCoordinatesLightMap[texCoordIdxLM];
v.Tv1 = meshData.textureCoordinatesLightMap[texCoordIdxLM + 1];
//color
int colorIdx = meshData.colorIndices[j];
v.Color = meshData.verticesColors[colorIdx];
data.Write(v);
}
vb.Unlock();
}
//Cargar IndexBuffer
using (IndexBuffer ib = mesh.IndexBuffer)
{
short[] indices = new short[meshData.coordinatesIndices.Length];
for (int j = 0; j < indices.Length; j++)
{
indices[j] = (short)j;
}
ib.SetData(indices, 0, LockFlags.None);
}
//Configurar Material y Textura para un solo SubSet
TgcSceneLoaderMaterialAux matAux = materialsArray[meshData.materialId];
Material[] meshMaterials;
TgcTexture[] meshTextures;
if (matAux.subMaterials == null)
{
meshMaterials = new Material[] { matAux.materialId };
meshTextures = new TgcTexture[] { matAux.texture };
}
//Configurar Material y Textura para varios SubSet
else
{
//Cargar attributeBuffer con los id de las texturas de cada triángulo
int[] attributeBuffer = mesh.LockAttributeBufferArray(LockFlags.None);
Array.Copy(meshData.materialsIds, attributeBuffer, attributeBuffer.Length);
mesh.UnlockAttributeBuffer(attributeBuffer);
//Cargar array de Materials y Texturas
meshMaterials = new Material[matAux.subMaterials.Length];
meshTextures = new TgcTexture[matAux.subMaterials.Length];
for (int m = 0; m < matAux.subMaterials.Length; m++)
{
meshMaterials[m] = matAux.subMaterials[m].materialId;
meshTextures[m] = matAux.subMaterials[m].texture;
}
}
//Cargar lightMap
TgcTexture lightMap = TgcTexture.createTexture(device, meshData.lightmap, mediaPath + sceneData.lightmapsDir + "\\" + meshData.lightmap);
//Crear mesh de TGC
TgcMesh tgcMesh = meshFactory.createNewMesh(mesh, meshData.name, TgcMesh.MeshRenderType.DIFFUSE_MAP_AND_LIGHTMAP);
tgcMesh.Materials = meshMaterials;
tgcMesh.DiffuseMaps = meshTextures;
tgcMesh.LightMap = lightMap;
return tgcMesh;
}
/// <summary>
/// Levanta la informacion del XML
/// </summary>
/// <param name="xmlString">contenido del XML</param>
/// <returns></returns>
public TgcSceneData parseSceneFromString(string xmlString)
{
XmlDocument dom = new XmlDocument();
dom.LoadXml(xmlString);
XmlElement root = dom.DocumentElement;
string sceneName = root.GetElementsByTagName("name")[0].InnerText;
TgcSceneData tgcSceneData = new TgcSceneData();
tgcSceneData.name = sceneName;
//Ver si tiene exportacion de texturas
XmlNode texturesExportNode = root.GetElementsByTagName("texturesExport")[0];
bool texturesExportEnabled = bool.Parse(texturesExportNode.Attributes["enabled"].InnerText);
if (texturesExportEnabled)
{
tgcSceneData.texturesDir = texturesExportNode.Attributes["dir"].InnerText;
}
//Ver si tiene LightMaps
XmlNode lightmapsExportNode = root.GetElementsByTagName("lightmapExport")[0];
tgcSceneData.lightmapsEnabled = bool.Parse(lightmapsExportNode.Attributes["enabled"].InnerText);
if (tgcSceneData.lightmapsEnabled)
{
tgcSceneData.lightmapsDir = lightmapsExportNode.Attributes["dir"].InnerText;
}
//sceneBoundingBox, si está
XmlNodeList sceneBoundingBoxNodes = root.GetElementsByTagName("sceneBoundingBox");
if (sceneBoundingBoxNodes != null && sceneBoundingBoxNodes.Count == 1)
{
XmlNode sceneBoundingBoxNode = sceneBoundingBoxNodes[0];
tgcSceneData.pMin = TgcParserUtils.parseFloat3Array(sceneBoundingBoxNode.Attributes["min"].InnerText);
tgcSceneData.pMax = TgcParserUtils.parseFloat3Array(sceneBoundingBoxNode.Attributes["max"].InnerText);
}
//Parsear Texturas
XmlNodeList materialNodes = root.GetElementsByTagName("materials")[0].ChildNodes;
tgcSceneData.materialsData = new TgcMaterialData[materialNodes.Count];
int i = 0;
foreach (XmlElement matNode in materialNodes)
{
//determinar tipo de Material
TgcMaterialData material = new TgcMaterialData();
material.type = matNode.Attributes["type"].InnerText;
//Standard Material
if (material.type.Equals(TgcMaterialData.StandardMaterial))
{
parseStandardMaterial(material, matNode);
}
//Multi Material
else if (material.type.Equals(TgcMaterialData.MultiMaterial))
{
material.name = matNode.Attributes["name"].InnerText;
XmlNodeList subMaterialsNodes = matNode.GetElementsByTagName("subM");
material.subMaterials = new TgcMaterialData[subMaterialsNodes.Count];
for (int j = 0; j < subMaterialsNodes.Count; j++)
{
TgcMaterialData subMaterial = new TgcMaterialData();
parseStandardMaterial(subMaterial, (XmlElement)subMaterialsNodes[j]);
material.subMaterials[j] = subMaterial;
}
}
tgcSceneData.materialsData[i++] = material;
}
//Parsear Meshes
XmlNodeList meshesNodes = root.GetElementsByTagName("meshes")[0].ChildNodes;
tgcSceneData.meshesData = new TgcMeshData[meshesNodes.Count];
i = 0;
int count;
foreach (XmlElement meshNode in meshesNodes)
{
TgcMeshData meshData = new TgcMeshData();
tgcSceneData.meshesData[i++] = meshData;
//parser y convertir valores
meshData.name = meshNode.Attributes["name"].InnerText;
meshData.materialId = int.Parse(meshNode.Attributes["matId"].InnerText);
meshData.color = TgcParserUtils.parseFloat3Array(meshNode.Attributes["color"].InnerText);
meshData.lightmap = meshNode.Attributes["lightmap"].InnerText;
//type
XmlAttribute typeAttr = meshNode.Attributes["type"];
meshData.instanceType = TgcMeshData.ORIGINAL;
if (typeAttr != null)
{
meshData.instanceType = typeAttr.InnerText;
}
//layer
XmlAttribute layerAttr = meshNode.Attributes["layer"];
if (layerAttr != null)
{
meshData.layerName = layerAttr.InnerText;
}
//visibility
float visibility = TgcParserUtils.parseFloat(meshNode.Attributes["visibility"].InnerText);
meshData.alphaBlending = visibility != 1.0f ? true : false;
//parsear boundingBox
XmlNodeList boundingBoxNodes = meshNode.GetElementsByTagName("boundingBox");
if(boundingBoxNodes != null && boundingBoxNodes.Count == 1)
{
XmlNode boundingBoxNode = boundingBoxNodes[0];
meshData.pMin = TgcParserUtils.parseFloat3Array(boundingBoxNode.Attributes["min"].InnerText);
meshData.pMax = TgcParserUtils.parseFloat3Array(boundingBoxNode.Attributes["max"].InnerText);
}
//parsear datos de mesh Original
if (meshData.instanceType.Equals(TgcMeshData.ORIGINAL))
{
//parsear coordinatesIdx
XmlNode coordinatesIdxNode = meshNode.GetElementsByTagName("coordinatesIdx")[0];
count = int.Parse(coordinatesIdxNode.Attributes["count"].InnerText);
meshData.coordinatesIndices = TgcParserUtils.parseIntStream(coordinatesIdxNode.InnerText, count);
//parsear textCoordsIdx
XmlNode textCoordsIdxNode = meshNode.GetElementsByTagName("textCoordsIdx")[0];
count = int.Parse(textCoordsIdxNode.Attributes["count"].InnerText);
meshData.texCoordinatesIndices = TgcParserUtils.parseIntStream(textCoordsIdxNode.InnerText, count);
//parsear colorsIdx
XmlNode colorsIdxNode = meshNode.GetElementsByTagName("colorsIdx")[0];
count = int.Parse(colorsIdxNode.Attributes["count"].InnerText);
meshData.colorIndices = TgcParserUtils.parseIntStream(colorsIdxNode.InnerText, count);
//parsear matIds
//TODO: ver bien como calcula esto el SCRIPT de Exportacion
if (meshData.materialId != -1)
{
XmlNode matIdsNode = meshNode.GetElementsByTagName("matIds")[0];
count = int.Parse(matIdsNode.Attributes["count"].InnerText);
meshData.materialsIds = TgcParserUtils.parseIntStream(matIdsNode.InnerText, count);
}
//parsear textCoordsLightMapIdx
meshData.lightmapEnabled = tgcSceneData.lightmapsEnabled && (meshData.lightmap.Trim()).Length > 0;
if (meshData.lightmapEnabled)
{
XmlNode textCoordsLightMapIdxNode = meshNode.GetElementsByTagName("textCoordsLightMapIdx")[0];
count = int.Parse(textCoordsLightMapIdxNode.Attributes["count"].InnerText);
meshData.texCoordinatesIndicesLightMap = TgcParserUtils.parseIntStream(textCoordsLightMapIdxNode.InnerText, count);
}
//parsear vertices
XmlNode verticesNode = meshNode.GetElementsByTagName("vertices")[0];
count = int.Parse(verticesNode.Attributes["count"].InnerText);
meshData.verticesCoordinates = TgcParserUtils.parseFloatStream(verticesNode.InnerText, count);
//parsear normals
XmlNode normalsNode = meshNode.GetElementsByTagName("normals")[0];
count = int.Parse(normalsNode.Attributes["count"].InnerText);
meshData.verticesNormals = TgcParserUtils.parseFloatStream(normalsNode.InnerText, count);
//parsear tangents, si hay
XmlNodeList tangentsNodes = meshNode.GetElementsByTagName("tangents");
if (tangentsNodes != null && tangentsNodes.Count == 1)
{
XmlNode tangentsNode = tangentsNodes[0];
count = int.Parse(tangentsNode.Attributes["count"].InnerText);
meshData.verticesTangents = TgcParserUtils.parseFloatStream(tangentsNode.InnerText, count);
}
//parsear binormals, si hay
XmlNodeList binormalsNodes = meshNode.GetElementsByTagName("binormals");
if (binormalsNodes != null && binormalsNodes.Count == 1)
{
XmlNode binormalsNode = binormalsNodes[0];
count = int.Parse(binormalsNode.Attributes["count"].InnerText);
meshData.verticesBinormals = TgcParserUtils.parseFloatStream(binormalsNode.InnerText, count);
}
//parsear texCoords
XmlNode texCoordsNode = meshNode.GetElementsByTagName("texCoords")[0];
count = int.Parse(texCoordsNode.Attributes["count"].InnerText);
meshData.textureCoordinates = TgcParserUtils.parseFloatStream(texCoordsNode.InnerText, count);
//parsear colors
XmlNode colorsNode = meshNode.GetElementsByTagName("colors")[0];
count = int.Parse(colorsNode.Attributes["count"].InnerText);
float[] colorsArray = TgcParserUtils.parseFloatStream(colorsNode.InnerText, count);
//convertir a formato DirectX
meshData.verticesColors = new int[count / 3];
for (int j = 0; j < meshData.verticesColors.Length; j++)
{
meshData.verticesColors[j] = Color.FromArgb(
(int)colorsArray[j * 3],
(int)colorsArray[j * 3 + 1],
(int)colorsArray[j * 3 + 2]).ToArgb();
}
//parsear texCoordsLightMap
if (meshData.lightmapEnabled)
{
XmlNode texCoordsLightMapNode = meshNode.GetElementsByTagName("texCoordsLightMap")[0];
count = int.Parse(texCoordsLightMapNode.Attributes["count"].InnerText);
meshData.textureCoordinatesLightMap = TgcParserUtils.parseFloatStream(texCoordsLightMapNode.InnerText, count);
}
}
//parsear datos de mesh Instancia
else if(meshData.instanceType.Equals(TgcMeshData.INSTANCE))
{
//originalMesh
XmlNode originalMeshNode = meshNode.GetElementsByTagName("originalMesh")[0];
meshData.originalMesh = TgcParserUtils.parseInt(originalMeshNode.InnerText);
//transform
XmlNode transformNode = meshNode.GetElementsByTagName("transform")[0];
meshData.position = TgcParserUtils.parseFloat3Array(transformNode.Attributes["pos"].InnerText);
meshData.rotation = TgcParserUtils.parseFloat4Array(transformNode.Attributes["rotQuat"].InnerText);
meshData.scale = TgcParserUtils.parseFloat3Array(transformNode.Attributes["scale"].InnerText);
}
//Parsear userProperties, si hay
XmlNodeList userPropsNodes = meshNode.GetElementsByTagName("userProps");
if (userPropsNodes != null && userPropsNodes.Count == 1)
{
meshData.userProperties = new Dictionary<string, string>();
XmlElement userPropsNode = (XmlElement)userPropsNodes[0];
foreach (XmlElement prop in userPropsNode.ChildNodes)
{
meshData.userProperties.Add(prop.Name, prop.InnerText);
}
}
}
//Parsear PortalRendering, si hay información
XmlNodeList portalRenderingNodes = root.GetElementsByTagName("portalRendering");
if (portalRenderingNodes != null && portalRenderingNodes.Count == 1)
{
XmlElement portalRenderingNode = (XmlElement)portalRenderingNodes[0];
TgcPortalRenderingParser portalParser = new TgcPortalRenderingParser();
tgcSceneData.portalData = portalParser.parseFromXmlNode(portalRenderingNode);
}
return tgcSceneData;
}
