private ModelMeshContent ProcessMesh(MeshContent mesh, ModelBoneContent parent, ContentProcessorContext context)
{
var bounds = new BoundingSphere();
var parts = new List <ModelMeshPartContent>();
var vertexBuffer = new VertexBufferContent();
var indexBuffer = new IndexCollection();
var startVertex = 0;
foreach (var geometry in mesh.Geometry)
{
var vertices = geometry.Vertices;
var vertexCount = vertices.VertexCount;
var geomBuffer = geometry.Vertices.CreateVertexBuffer();
vertexBuffer.Write(vertexBuffer.VertexData.Length, 1, geomBuffer.VertexData);
var startIndex = indexBuffer.Count;
indexBuffer.AddRange(geometry.Indices);
var partContent = new ModelMeshPartContent(vertexBuffer, indexBuffer, startVertex, vertexCount, startIndex, geometry.Indices.Count / 3);
partContent.Material = geometry.Material;
parts.Add(partContent);
// Update mesh bounding box
bounds = BoundingSphere.CreateMerged(bounds, BoundingSphere.CreateFromPoints(geometry.Vertices.Positions));
// Geoms are supposed to all have the same decl, so just steal one of these
vertexBuffer.VertexDeclaration = geomBuffer.VertexDeclaration;
startVertex += vertexCount;
}
return(new ModelMeshContent(mesh.Name, mesh, parent, bounds, parts));
}
private ModelMeshContent ProcessMesh(MeshContent mesh, ModelBoneContent parent, ContentProcessorContext context)
{
var parts = new List <ModelMeshPartContent>();
var vertexBuffer = new VertexBufferContent();
var indexBuffer = new IndexCollection();
if (GenerateTangentFrames)
{
context.Logger.LogMessage("Generating tangent frames.");
foreach (GeometryContent geom in mesh.Geometry)
{
if (!geom.Vertices.Channels.Contains(VertexChannelNames.Normal(0)))
{
MeshHelper.CalculateNormals(geom, true);
}
if (!geom.Vertices.Channels.Contains(VertexChannelNames.Tangent(0)) ||
!geom.Vertices.Channels.Contains(VertexChannelNames.Binormal(0)))
{
MeshHelper.CalculateTangentFrames(geom, VertexChannelNames.TextureCoordinate(0), VertexChannelNames.Tangent(0),
VertexChannelNames.Binormal(0));
}
}
}
var startVertex = 0;
foreach (var geometry in mesh.Geometry)
{
var vertices = geometry.Vertices;
var vertexCount = vertices.VertexCount;
ModelMeshPartContent partContent;
if (vertexCount == 0)
{
partContent = new ModelMeshPartContent();
}
else
{
var geomBuffer = geometry.Vertices.CreateVertexBuffer();
vertexBuffer.Write(vertexBuffer.VertexData.Length, 1, geomBuffer.VertexData);
var startIndex = indexBuffer.Count;
indexBuffer.AddRange(geometry.Indices);
partContent = new ModelMeshPartContent(vertexBuffer, indexBuffer, startVertex, vertexCount, startIndex, geometry.Indices.Count / 3);
// Geoms are supposed to all have the same decl, so just steal one of these
vertexBuffer.VertexDeclaration = geomBuffer.VertexDeclaration;
startVertex += vertexCount;
}
partContent.Material = geometry.Material;
parts.Add(partContent);
}
var bounds = new BoundingSphere();
if (mesh.Positions.Count > 0)
{
bounds = BoundingSphere.CreateFromPoints(mesh.Positions);
}
return(new ModelMeshContent(mesh.Name, mesh, parent, bounds, parts));
}
public override ModelContent Process(SceneContent input, ContentProcessorContext context)
{
List <ModelMeshContent> meshes = new List <ModelMeshContent>();
VertexBufferContent vertexBuffer = new VertexBufferContent(new VertexAttribute[] {
new PositionAttribute(),
new NormalAttribute(),
new TextureCoordinateAttribute(),
});
if (Skin)
{
vertexBuffer.AddAttribute(new BlendWeightsAttribute());
vertexBuffer.AddAttribute(new BlendIndicesAttribute());
}
BoneContent rootBone = BuildSkeleton(input.Scene.RootNode, null);
MaterialContent[] materials = new MaterialContent[input.Scene.MaterialCount];
for (int i = 0; i < input.Scene.MaterialCount; i++)
{
Dictionary <string, object> parameters = new Dictionary <string, object>();
GetMaterialParameters(input.Scene.Materials[i], parameters, context);
string materialFactory;
if (!MaterialTypeFactoryReplacements.TryGetValue(i, out materialFactory))
{
materialFactory = DefaultMaterialTypeFactory;
}
MaterialContent material = context.ContentManager.MaterialFactoryManager.GetMaterialFactory(materialFactory)(context, parameters);
material.Name = input.Scene.Materials[i].HasName ? input.Scene.Materials[i].Name : string.Format("{0}_Material_{1}", input.Name, i);
materials[i] = material;
}
uint numVertices = 0;
uint numIndices = 0;
for (int i = 0; i < input.Scene.MeshCount; i++)
{
Mesh mesh = input.Scene.Meshes[i];
uint primitiveCount = (uint)mesh.FaceCount;
uint baseVertex = numVertices;
uint baseIndex = numIndices;
uint partNumIndices = (uint)mesh.FaceCount * 3;
uint partNumVertices = (uint)mesh.VertexCount;
numVertices += (uint)mesh.VertexCount;
numIndices += (uint)mesh.FaceCount * 3;
Dictionary <uint, List <VertexWeight> > boneVertWeights = new Dictionary <uint, List <VertexWeight> >();
if (Skin)
{
ExtractBoneWeights(mesh, boneVertWeights);
}
for (int j = 0; j < mesh.VertexCount; j++)
{
vertexBuffer[Minotaur.Graphics.VertexUsage.Position].AddValues(mesh, j);
vertexBuffer[Minotaur.Graphics.VertexUsage.Normal].AddValues(mesh, j);
vertexBuffer[Minotaur.Graphics.VertexUsage.TextureCoordinate].AddValues(mesh, j);
if (Skin)
{
float[] weights = new float[4];
byte[] indices = new byte[4];
GetNormalizedBoneWeights(boneVertWeights[(uint)j], weights, indices);
((BlendWeightsAttribute)vertexBuffer[Minotaur.Graphics.VertexUsage.BlendWeight]).AddValues(weights);
((BlendIndicesAttribute)vertexBuffer[Minotaur.Graphics.VertexUsage.BlendIndices]).AddValues(indices);
}
}
IndexCollection indecies = new IndexCollection();
indecies.AddRange(mesh.GetIndices().Select(k => k + (uint)baseVertex));
ModelMeshPartContent part = new ModelMeshPartContent(vertexBuffer, indecies, baseVertex, partNumVertices, baseIndex, partNumIndices, primitiveCount);
Minotaur.Core.BoundingSphere boundingSphere = Minotaur.Core.BoundingSphere.CreateFromPoints(
((PositionAttribute)vertexBuffer[Minotaur.Graphics.VertexUsage.Position]).Values.Select(
p => new OpenTK.Vector3(p.X, p.Y, p.Z)));
ModelMeshContent modelmesh = new ModelMeshContent(mesh.Name, GetMeshParentBone(input.Scene.RootNode, i), new[] { part }, boundingSphere);
meshes.Add(modelmesh);
part.Material = materials[mesh.MaterialIndex];
}
List <ExternalReferenceContent <BoneAnimationsContent> > animations = new List <ExternalReferenceContent <BoneAnimationsContent> >();
foreach (Animation anim in input.Scene.Animations)
{
if (ExportAnimations.Count == 0 || ExportAnimations.Contains(anim.Name))
{
animations.Add(context.ContentManager.BuildContent <BoneAnimationsContent>(input.Name, "ModelImporter",
processorName: "BoneAnimProcessor",
processorData: new Dictionary <string, object>()
{
{ "AnimationName", anim.Name },
{ "NamePre", string.Format("{0}_", Path.GetFileNameWithoutExtension(input.Name)) },
},
ignoreBuildItem: true
));
}
}
return(new ModelContent(rootBone, _bones, meshes, animations));
}
/// <summary>
/// Construye la información de nodos del terreno
/// </summary>
/// <param name="vertList">Lista de vértices</param>
/// <param name="width">Anchura del terreno</param>
/// <param name="deep">Profundidad del terreno</param>
/// <param name="levels">Niveles distintos de detalle</param>
/// <returns>Devuelve la información de nodos del terreno</returns>
public static SceneryNodeInfo Build(
VertexMultitextured[] vertList,
int width,
int deep,
int levels)
{
// Lista resultante de nodos
List <SceneryTriangleNode> nodes = new List <SceneryTriangleNode>();
// Diccionario de índices
Dictionary <LOD, IndexCollection> indices = new Dictionary <LOD, IndexCollection>();
IndexCollection highIndices = new IndexCollection();
IndexCollection mediumIndices = new IndexCollection();
IndexCollection lowIndices = new IndexCollection();
// Tamaño de la cuadrícula
int totalCellsX = width;
int totalCellsZ = deep;
// Número de divisiones
int divisions = Convert.ToInt32(Math.Pow(4, levels));
int divisionsX = divisions / 2;
int divisionsZ = divisions / 2;
// Número de vértices en X y en Z
int numVertexesX = (totalCellsX / divisionsX);
int numVertexesZ = (totalCellsZ / divisionsZ);
// Número total de vértices, triángulos e índices
int totalVertices = totalCellsX * totalCellsZ;
int totalTriangles = (totalCellsX - 1) * (totalCellsZ - 1) * 2;
int totalIndices = totalTriangles * 3;
for (int x = 0; x < divisionsX; x++)
{
int offsetX = x * numVertexesX;
int cellsX = numVertexesX;
for (int z = 0; z < divisionsZ; z++)
{
int offsetZ = z * numVertexesZ;
int cellsZ = numVertexesZ;
// Crear índices para generar la lista de triángulos de colisión
int[] collisionIndices = SceneryNodeInfo.CreateCollisionIndices(
offsetX,
offsetZ,
cellsX,
cellsZ,
totalCellsX,
totalCellsZ);
// Crear la lista de triángulos
Triangle[] quadTriangles = SceneryNodeInfo.BuildPrimitiveList(vertList, collisionIndices);
// Crear los índices para alta resolución
SceneryNodeIndexInfo quadHighInfo = null;
Int32[] quadHighIndices = Build(
LOD.High,
highIndices.Count,
offsetX,
offsetZ,
cellsX,
cellsZ,
totalCellsX,
totalCellsZ,
out quadHighInfo);
// Crear los índices para media resolución
SceneryNodeIndexInfo quadMediumInfo = null;
Int32[] quadMediumIndices = Build(
LOD.Medium,
mediumIndices.Count,
offsetX,
offsetZ,
cellsX,
cellsZ,
totalCellsX,
totalCellsZ,
out quadMediumInfo);
// Crear los índices para baja resolución
SceneryNodeIndexInfo quadLowInfo = null;
Int32[] quadLowIndices = Build(
LOD.Low,
lowIndices.Count,
offsetX,
offsetZ,
cellsX,
cellsZ,
totalCellsX,
totalCellsZ,
out quadLowInfo);
// Añadir los índices a la colección de índices para cada resolución
highIndices.AddRange(quadHighIndices);
mediumIndices.AddRange(quadMediumIndices);
lowIndices.AddRange(quadLowIndices);
Dictionary <LOD, SceneryNodeIndexInfo> info = new Dictionary <LOD, SceneryNodeIndexInfo>();
info.Add(LOD.High, quadHighInfo);
info.Add(LOD.Medium, quadMediumInfo);
info.Add(LOD.Low, quadLowInfo);
// Crear el nodo con los triángulos para la colisión, los índices de inicio y el número de triángulos para cada resolución
SceneryTriangleNode newQuadNode = new SceneryTriangleNode(quadTriangles, info);
nodes.Add(newQuadNode);
}
}
// Crear el diccionario de buffers de índices para cada resolución
indices = new Dictionary <LOD, IndexCollection>();
indices.Add(LOD.High, highIndices);
indices.Add(LOD.Medium, mediumIndices);
indices.Add(LOD.Low, lowIndices);
// Devolver la información de nodos del escenario
return(new SceneryNodeInfo()
{
Nodes = nodes.ToArray(),
Indices = indices,
});
}