public SSMesh_wfOBJ(SSAssetManager.Context ctx, string filename)
{
this.srcFilename = ctx.fullResourcePath(filename);
Console.WriteLine("SSMesh_wfOBJ: loading wff {0}", filename);
WavefrontObjLoader wff_data = new WavefrontObjLoader(ctx, filename);
Console.WriteLine("wff vertex count = {0}", wff_data.positions.Count);
Console.WriteLine("wff face count = {0}", wff_data.numFaces);
_loadData(ctx, wff_data);
// update radius
float maxRadSq = 0f;
foreach (var subset in geometrySubsets)
{
foreach (var vtx in subset.triangleMesh.lastAssignedVertices)
{
maxRadSq = Math.Max(maxRadSq, vtx.Position.LengthSquared);
}
}
_boundingSphereRadius = (float)Math.Sqrt(maxRadSq);
}
private SSMeshOBJSubsetData _loadMaterialSubset(SSAssetManager.Context ctx, WavefrontObjLoader wff,
WavefrontObjLoader.MaterialInfoWithFaces objMatSubset)
{
// generate renderable geometry data...
SSVertex_PosNormTexDiff[] vertices;
UInt16[] triIndices, wireframeIndices;
VertexSoup_VertexFormatBinder.generateDrawIndexBuffer(
wff, out triIndices, out vertices);
wireframeIndices = OpenTKHelper.generateLineIndicies(triIndices);
SSMeshOBJSubsetData subsetData = new SSMeshOBJSubsetData(
vertices, triIndices, wireframeIndices);
// setup the material...
// load and link every texture present
subsetData.TextureMaterial = new SSTextureMaterial();
if (objMatSubset.mtl.diffuseTextureResourceName != null)
{
subsetData.TextureMaterial.diffuseTex = SSAssetManager.GetInstance <SSTexture>(ctx, objMatSubset.mtl.diffuseTextureResourceName);
}
if (objMatSubset.mtl.ambientTextureResourceName != null)
{
subsetData.TextureMaterial.ambientTex = SSAssetManager.GetInstance <SSTexture>(ctx, objMatSubset.mtl.ambientTextureResourceName);
}
if (objMatSubset.mtl.bumpTextureResourceName != null)
{
subsetData.TextureMaterial.bumpMapTex = SSAssetManager.GetInstance <SSTexture>(ctx, objMatSubset.mtl.bumpTextureResourceName);
}
if (objMatSubset.mtl.specularTextureResourceName != null)
{
subsetData.TextureMaterial.specularTex = SSAssetManager.GetInstance <SSTexture>(ctx, objMatSubset.mtl.specularTextureResourceName);
}
return(subsetData);
}
private Mesh LoadModel(string name, string path, bool normaliseAndCenterise)
{
MeshVertex[] vertices;
WavefrontObjLoader.FlattenIndices(path, out vertices, normaliseAndCenterise);
return(new Mesh(name, vertices));
}
private void _loadData(string baseDirectory, WavefrontObjLoader m)
{
foreach (var srcmat in m.materials)
{
if (srcmat.faces.Count != 0)
{
this.geometrySubsets.Add(_loadMaterialSubset(baseDirectory, m, srcmat));
}
}
}
private void _loadData(SSAssetManager.Context ctx, WavefrontObjLoader m)
{
foreach (var srcmat in m.materials)
{
if (srcmat.faces.Count != 0)
{
this.geometrySubsets.Add(_loadMaterialSubset(ctx, m, srcmat));
}
}
}
public SSMesh_wfOBJ(SSAssetManager.Context ctx, string filename)
{
this.srcFilename = filename;
this.ctx = ctx;
Console.WriteLine("SSMesh_wfOBJ: loading wff {0}", filename);
WavefrontObjLoader wff_data = new WavefrontObjLoader(ctx, filename);
Console.WriteLine("wff vertex count = {0}", wff_data.positions.Count);
Console.WriteLine("wff face count = {0}", wff_data.numFaces);
_loadData(ctx, wff_data);
}
private SSMeshOBJSubsetData _loadMaterialSubset(string baseDirectory, WavefrontObjLoader wff,
WavefrontObjLoader.MaterialInfoWithFaces objMatSubset)
{
// generate renderable geometry data...
SSVertex_PosNormTex[] vertices;
UInt16[] triIndices, wireframeIndices;
VertexSoup_VertexFormatBinder.generateDrawIndexBuffer(
wff, objMatSubset, out triIndices, out vertices);
wireframeIndices = OpenTKHelper.generateLineIndicies(triIndices);
SSMeshOBJSubsetData subsetData = new SSMeshOBJSubsetData(
vertices, triIndices, wireframeIndices);
// setup the material...
// load and link every texture present
subsetData.textureMaterial = SSTextureMaterial.FromBlenderMtl(baseDirectory, objMatSubset.mtl);
subsetData.colorMaterial = SSColorMaterial.fromMtl(objMatSubset.mtl);
return(subsetData);
}
private SSMeshOBJSubsetData _loadMaterialSubset(SSAssetManager.Context ctx, WavefrontObjLoader wff,
WavefrontObjLoader.MaterialInfoWithFaces objMatSubset)
{
// create new mesh subset-data
SSMeshOBJSubsetData subsetData = new SSMeshOBJSubsetData();
// setup the material...
// load and link every texture present
subsetData.TextureMaterial = new SSTextureMaterial();
if (objMatSubset.mtl.diffuseTextureResourceName != null)
{
subsetData.TextureMaterial.diffuseTex = SSAssetManager.GetInstance <SSTexture>(ctx, objMatSubset.mtl.diffuseTextureResourceName);
}
if (objMatSubset.mtl.ambientTextureResourceName != null)
{
subsetData.TextureMaterial.ambientTex = SSAssetManager.GetInstance <SSTexture>(ctx, objMatSubset.mtl.ambientTextureResourceName);
}
if (objMatSubset.mtl.bumpTextureResourceName != null)
{
subsetData.TextureMaterial.bumpMapTex = SSAssetManager.GetInstance <SSTexture>(ctx, objMatSubset.mtl.bumpTextureResourceName);
}
if (objMatSubset.mtl.specularTextureResourceName != null)
{
subsetData.TextureMaterial.specularTex = SSAssetManager.GetInstance <SSTexture>(ctx, objMatSubset.mtl.specularTextureResourceName);
}
// generate renderable geometry data...
VertexSoup_VertexFormatBinder.generateDrawIndexBuffer(wff, out subsetData.indicies, out subsetData.vertices);
// TODO: setup VBO/IBO buffers
// http://www.opentk.com/doc/graphics/geometry/vertex-buffer-objects
subsetData.wireframe_indicies = OpenTKHelper.generateLineIndicies(subsetData.indicies);
subsetData.vbo = new SSVertexBuffer <SSVertex_PosNormTexDiff>(subsetData.vertices);
subsetData.ibo = new SSIndexBuffer(subsetData.indicies, subsetData.vbo);
subsetData.ibo_wireframe = new SSIndexBuffer(subsetData.wireframe_indicies, subsetData.vbo);
return(subsetData);
}
double keyDeltaFactor = 4; // determine the angle delta when the ddirection key pressed
public MainWindow()
{
InitializeComponent();
WavefrontObjLoader wfl = new WavefrontObjLoader();
slider1.ValueChanged += new RoutedPropertyChangedEventHandler <double>(slider1_ValueChanged);
slider2.ValueChanged += new RoutedPropertyChangedEventHandler <double>(slider1_ValueChanged);
slider3.ValueChanged += new RoutedPropertyChangedEventHandler <double>(slider1_ValueChanged);
// Specify where in the 3D scene the camera is.
camera.Position = new Point3D(0, 0, 0);
// Specify the direction that the camera is pointing.
camera.LookDirection = new Vector3D(0, 0, -1);
// Define camera's horizontal field of view in degrees.
camera.FieldOfView = 1000;
// Asign the camera to the viewport
vp.Camera = camera;
Model3DGroup myModel3DGroup = new Model3DGroup();
DirectionalLight myDirectionalLight = new DirectionalLight();
myDirectionalLight.Color = Colors.White;
myDirectionalLight.Direction = new Vector3D(-0.61, -0.5, -0.61);
myModel3DGroup.Children.Add(myDirectionalLight);
var m = wfl.LoadObjFile(@"F:\MeshedReconstruction.obj");
m.Content = myModel3DGroup;
vp.Children.Add(m);
camera.UpDirection.Normalize();
this.MouseMove += Viewport3D_MouseMove;
this.MouseLeftButtonDown += Viewport3D_MouseLeftButtonDown;
this.MouseWheel += Viewport3D_MouseWheel;
this.KeyDown += Window_KeyDown;
}
public SSMesh_wfOBJ(SSAssetManager.Context ctx, string filename)
{
this.srcFilename = ctx.fullResourcePath(filename);
Console.WriteLine("SSMesh_wfOBJ: loading wff {0}",filename);
WavefrontObjLoader wff_data = new WavefrontObjLoader(ctx, filename);
Console.WriteLine("wff vertex count = {0}",wff_data.positions.Count);
Console.WriteLine("wff face count = {0}",wff_data.numFaces);
_loadData(ctx, wff_data);
// update radius
float maxRadSq = 0f;
foreach (var subset in geometrySubsets) {
foreach (var vtx in subset.triangleMesh.lastAssignedVertices) {
maxRadSq = Math.Max (maxRadSq, vtx.Position.LengthSquared);
}
}
_boundingSphereRadius = (float)Math.Sqrt (maxRadSq);
}
public void loadModel(string modelPath)
{
WavefrontObjLoader rawModel = new WavefrontObjLoader("Assets/Models/spaceship.obj", delegate(string resource_name) {
String ext = Path.GetExtension(resource_name);
if (ext == ".obj")
{
return(System.IO.File.Open(resource_name, System.IO.FileMode.Open));
}
if (ext == ".mtl")
{
return(System.IO.File.Open("Assets/Materials/" + resource_name, System.IO.FileMode.Open));
}
return(null);
});
foreach (var mat in rawModel.materials)
{
foreach (var face in mat.faces)
{
}
}
}
public MainWindow()
{
InitializeComponent();
wfl = new WavefrontObjLoader();
slider1.ValueChanged += new RoutedPropertyChangedEventHandler <double>(slider1_ValueChanged);
slider2.ValueChanged += new RoutedPropertyChangedEventHandler <double>(slider2_ValueChanged);
slider3.ValueChanged += new RoutedPropertyChangedEventHandler <double>(slider3_ValueChanged);
slider4.ValueChanged += new RoutedPropertyChangedEventHandler <double>(slider4_ValueChanged);
slider5.ValueChanged += new RoutedPropertyChangedEventHandler <double>(slider5_ValueChanged);
createCamera2();//三视图
createCamera3();
createCamera4();
createCamera();
createLight();
createModel3D();
create360();
createx360();
//createAnimation();
}
public SSMesh_wfOBJ(string path)
{
this.srcFilename = path;
Console.WriteLine("SSMesh_wfOBJ: loading wff {0}", path);
WavefrontObjLoader wff_data = new WavefrontObjLoader(path);
Console.WriteLine("wff vertex count = {0}", wff_data.positions.Count);
Console.WriteLine("wff face count = {0}", wff_data.numFaces);
_loadData(Path.GetDirectoryName(path), wff_data);
// update radius
float maxRadSq = 0f;
foreach (var subset in geometrySubsets)
{
foreach (var vtx in subset.triangleMesh.lastAssignedVertices)
{
maxRadSq = Math.Max(maxRadSq, vtx.Position.LengthSquared);
}
}
_boundingSphereRadius = (float)Math.Sqrt(maxRadSq);
}
// generateDrawIndexBuffer(..)
//
// Walks the wavefront faces, feeds pre-configured verticies to the VertexSoup,
// and returns a new index-buffer pointing to the new VertexSoup.verticies indicies.
public static void generateDrawIndexBuffer(
WavefrontObjLoader wff,
out UInt16[] indicies_return,
out SSVertex_PosNormDiffTex1[] verticies_return)
{
const bool shouldDedup = true; // this lets us turn on/of vertex-soup deduping
var soup = new VertexSoup <SSVertex_PosNormDiffTex1>(deDup: shouldDedup);
List <UInt16> draw_indicies = new List <UInt16>();
// (0) go throu`gh the materials and faces, DENORMALIZE from WF-OBJ into fully-configured verticies
// load indexes
foreach (var mtl in wff.materials)
{
// wavefrontOBJ stores color in CIE-XYZ color space. Convert this to Alpha-RGB
var materialDiffuseColor = WavefrontObjLoader.CIEXYZtoColor(mtl.vDiffuse).ToArgb();
foreach (var face in mtl.faces)
{
// iterate over the vericies of a wave-front FACE...
// DEREFERENCE each .obj vertex paramater (position, normal, texture coordinate)
SSVertex_PosNormDiffTex1[] vertex_list = new SSVertex_PosNormDiffTex1[face.v_idx.Length];
for (int facevertex = 0; facevertex < face.v_idx.Length; facevertex++)
{
// position
vertex_list[facevertex].Position = CV(wff.positions[face.v_idx[facevertex]]);
// normal
int normal_idx = face.n_idx[facevertex];
if (normal_idx != -1)
{
vertex_list[facevertex].Normal = CV(wff.normals[normal_idx]);
}
// texture coordinate
int tex_index = face.tex_idx[facevertex];
if (tex_index != -1)
{
vertex_list[facevertex].Tu = wff.texCoords[tex_index].U;
vertex_list[facevertex].Tv = 1 - wff.texCoords[tex_index].V;
}
// assign our material's diffusecolor to the vertex diffuse color...
vertex_list [facevertex].DiffuseColor = materialDiffuseColor;
}
// turn them into indicies in the vertex soup..
// .. we hand the soup a set of fully configured verticies. It
// .. dedups and accumulates them, and hands us back indicies
// .. relative to it's growing list of deduped verticies.
UInt16[] soup_indicies = soup.digestVerticies(vertex_list);
// now we add these indicies to the draw-list. Right now we assume
// draw is using GL_TRIANGLE, so we convert NGONS into triange lists
if (soup_indicies.Length == 3) // triangle
{
draw_indicies.Add(soup_indicies[0]);
draw_indicies.Add(soup_indicies[1]);
draw_indicies.Add(soup_indicies[2]);
}
else if (soup_indicies.Length == 4) // quad
{
draw_indicies.Add(soup_indicies[0]);
draw_indicies.Add(soup_indicies[1]);
draw_indicies.Add(soup_indicies[2]);
draw_indicies.Add(soup_indicies[0]);
draw_indicies.Add(soup_indicies[2]);
draw_indicies.Add(soup_indicies[3]);
}
else
{
// This n-gon algorithm only works if the n-gon is coplanar and convex,
// which Wavefront OBJ says they must be.
// .. to tesselate concave ngons, one must tesselate using a more complex method, see
// http://en.wikipedia.org/wiki/Polygon_triangulation#Ear_clipping_method
// manually generate a triangle-fan
for (int x = 1; x < (soup_indicies.Length - 1); x++)
{
draw_indicies.Add(soup_indicies[0]);
draw_indicies.Add(soup_indicies[x]);
draw_indicies.Add(soup_indicies[x + 1]);
}
// throw new NotImplementedException("unhandled face size: " + newindicies.Length);
}
}
}
// convert the linked-lists into arrays and return
indicies_return = draw_indicies.ToArray();
verticies_return = soup.verticies.ToArray();
Console.WriteLine("VertexSoup_VertexFormatBinder:generateDrawIndexBuffer : \r\n {0} verticies, {1} indicies. Dedup = {2}",
verticies_return.Length, indicies_return.Length,
shouldDedup ? "YES" : "NO");
}
public static Mesh LoadMesh(Device device, string path)
{
var loader = new WavefrontObjLoader();
loader.LoadObj(path);
//if (positionTransform.HasValue)
//{
// Matrix3 transform = positionTransform.Value;
// for (int j = 0; j < loader.VertexList.Count; j++)
// {
// loader.VertexList[j].Vector = Matrix3.Transform(loader.VertexList[j].Vector, transform);
// }
//}
// vertex buffer
var vertexCount = loader.TriangleCount * 3;
var vertices = new ColoredTexturedVertex[vertexCount];
int i = 0;
foreach (var face in loader.FaceList)
{
var v = face.VertexIndexList;
var n = face.NormalVertexIndexList;
var t = face.TextureVertexIndexList;
vertices[i + 0] = new ColoredTexturedVertex {
Position = loader.VertexList[v[0] - 1].Vector, Normal = loader.NormalList[n[0] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[0] - 1].Vector
};
vertices[i + 1] = new ColoredTexturedVertex {
Position = loader.VertexList[v[1] - 1].Vector, Normal = loader.NormalList[n[1] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[1] - 1].Vector
};
vertices[i + 2] = new ColoredTexturedVertex {
Position = loader.VertexList[v[2] - 1].Vector, Normal = loader.NormalList[n[2] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[2] - 1].Vector
};
i += 3;
if (v.Length == 4)
{
vertices[i + 0] = new ColoredTexturedVertex {
Position = loader.VertexList[v[2] - 1].Vector, Normal = loader.NormalList[n[2] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[2] - 1].Vector
};
vertices[i + 1] = new ColoredTexturedVertex {
Position = loader.VertexList[v[3] - 1].Vector, Normal = loader.NormalList[n[3] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[3] - 1].Vector
};
vertices[i + 2] = new ColoredTexturedVertex {
Position = loader.VertexList[v[0] - 1].Vector, Normal = loader.NormalList[n[0] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[0] - 1].Vector
};
i += 3;
}
}
var indices = new int[vertexCount];
for (int j = 0; j < vertexCount; j++)
{
indices[j] = j;
}
Mesh mesh = new Mesh(device);
mesh.VertexBuffer = Buffer11.Create <ColoredTexturedVertex>(device.NativeDevice, BindFlags.VertexBuffer, vertices.ToArray());
mesh.IndexBuffer = Buffer11.Create(device.NativeDevice, BindFlags.IndexBuffer, indices.ToArray());
mesh.VertexSize = Utilities.SizeOf <ColoredTexturedVertex>();
mesh.IndexCount = indices.Count();
return(mesh);
}
public MainWindow()
{
InitializeComponent();
model.change += new MainViewModel.OnSelectChange(Model_change);
model.change1 += new MainViewModel.OnSelectChange(Model_change1);;
//right.DataContext = ModelPartList2;
this.Closed += MainWindow_Closed;
this.DataContext = model;
//摄像头
myPCamera = new PerspectiveCamera();
myPCamera.Position = new Point3D(0, 0, 200);
myPCamera.LookDirection = new Vector3D(0, 0, -1);
myPCamera.FieldOfView = 1000;
vp.Camera = myPCamera;
Model3DGroup myModel3DGroup = new Model3DGroup();
//光源
//AmbientLight （自然光）
//DirectionalLight （方向光）
//PointLight （点光源）
//SpotLight （聚光源）
AmbientLight myDirectionalLight = new AmbientLight();
myDirectionalLight.Color = Colors.White;
// myDirectionalLight.Direction = new Vector3D(0.61, 0.5, 0.61);
myModel3DGroup.Children.Add(myDirectionalLight);
//DirectionalLight myDirectionalLight2 = new DirectionalLight();
//myDirectionalLight2.Color = Colors.White;
//myDirectionalLight2.Direction = new Vector3D(0.61, 0.5, 0.61);
//myModel3DGroup.Children.Add(myDirectionalLight2);
//new一个loader对象
WavefrontObjLoader wfl = new WavefrontObjLoader();
//ModelVisual3DWithName是WavefrontObjLoader定义的继承ModelVisual3D的对象，直接使用ModelVisual3D也是可以的
//导入obj，第一个模型命名为m
//ModelVisual3DWithName m = wfl.LoadObjFile(@"C:\Users\36102\Desktop\rdk_material_scene.obj");
//m.Content = myModel3DGroup;
////导入obj，第二个模型命名为n
//var n = wfl.LoadObjFile(@"C:\Users\hasee\Desktop\WpfApplication2\WpfApplication2\精细人体.obj");
//n.Content = myModel3DGroup;
//下面是调整n的位置，初学者可以先注释掉。
var tt = new TranslateTransform3D();
tt.OffsetX = 110;
tt.OffsetZ = -50;
tt.OffsetY = -100;
var tr = new RotateTransform3D();
tr.Rotation = new AxisAngleRotation3D(new Vector3D(1, 0, 0), 90);
var tr2 = new RotateTransform3D();
tr2.Rotation = new AxisAngleRotation3D(new Vector3D(0, 0, 1), -45);
var ts = new ScaleTransform3D();
ts.ScaleX = 1.5;
ts.ScaleY = 1.5;
ts.ScaleZ = 1.6;
var tg = new Transform3DGroup();
// tg.Children.Add(tr);// tg.Children.Add(tr2); tg.Children.Add(tt); tg.Children.Add(ts);
//n.Transform = tg;
//将两个模型添加到场景中
//vp.Children.Add(m);
// vp.Children.Add(n);
//添加鼠标事件，用于显示隐藏光晕特效
vp.MouseEnter += Vp_MouseEnter;
vp.MouseLeave += Vp_MouseLeave;
vp.MouseWheel += VP_MouseWheel;
vp.MouseMove += Window_MouseMove;
vp.MouseLeftButtonDown += vp_MouseLeftButtonDown;
}
public static VertexBufferBinding Load(GraphicsDevice device, String filename, Matrix3?positionTransform = null)
{
var library = Injector.Global.Resolve <Library>();
var loader = new WavefrontObjLoader();
using (var stream = library.OpenRead(filename))
{
loader.LoadObj(stream);
}
if (positionTransform.HasValue)
{
Matrix3 transform = positionTransform.Value;
for (int j = 0; j < loader.VertexList.Count; j++)
{
loader.VertexList[j].Vector = Matrix3.Transform(loader.VertexList[j].Vector, transform);
}
}
// vertex buffer
var vertexCount = loader.TriangleCount * 3;
var vertices = new PositionColorTexture[vertexCount];
int i = 0;
foreach (var face in loader.FaceList)
{
var v = face.VertexIndexList;
var t = face.TextureVertexIndexList;
vertices[i + 0] = new PositionColorTexture {
Position = loader.VertexList[v[0] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[0] - 1].Vector
};
vertices[i + 2] = new PositionColorTexture {
Position = loader.VertexList[v[1] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[1] - 1].Vector
};
vertices[i + 1] = new PositionColorTexture {
Position = loader.VertexList[v[2] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[2] - 1].Vector
};
i += 3;
if (v.Length == 4)
{
vertices[i + 0] = new PositionColorTexture {
Position = loader.VertexList[v[2] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[2] - 1].Vector
};
vertices[i + 2] = new PositionColorTexture {
Position = loader.VertexList[v[3] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[3] - 1].Vector
};
vertices[i + 1] = new PositionColorTexture {
Position = loader.VertexList[v[0] - 1].Vector, Color = new Vector4(1, 1, 1, 1), Texture = loader.TextureList[t[0] - 1].Vector
};
i += 3;
}
}
var buffer = GraphicsBuffer.Create(device, vertices, false);
return(new VertexBufferBinding
{
Buffer = buffer,
Count = vertexCount,
Declaration = PositionColorTexture.Layout,
Stride = PositionColorTexture.Layout.Stride,
});
}
// convert wavefrontobjloader vector formats, to our OpenTK Vector3 format
// generateDrawIndexBuffer(..)
//
// Walks the wavefront faces, feeds pre-configured verticies to the VertexSoup,
// and returns a new index-buffer pointing to the new VertexSoup.verticies indicies.
public static void generateDrawIndexBuffer(
WavefrontObjLoader wff,
WavefrontObjLoader.MaterialInfoWithFaces objMatSubset,
out UInt16[] indicies_return,
out SSVertex_PosNormTex[] verticies_return)
{
const bool shouldDedup = true; // this lets us turn on/of vertex-soup deduping
var soup = new VertexSoup<SSVertex_PosNormTex>(deDup:shouldDedup);
List<UInt16> draw_indicies = new List<UInt16>();
// (0) go throu`gh the materials and faces, DENORMALIZE from WF-OBJ into fully-configured verticies
// load indexes
var m = objMatSubset;
// wavefrontOBJ stores color in CIE-XYZ color space. Convert this to Alpha-RGB
var materialDiffuseColor = WavefrontObjLoader.CIEXYZtoColor(m.mtl.vDiffuse).ToArgb();
foreach (var face in m.faces) {
// iterate over the vericies of a wave-front FACE...
// DEREFERENCE each .obj vertex paramater (position, normal, texture coordinate)
SSVertex_PosNormTex[] vertex_list = new SSVertex_PosNormTex[face.v_idx.Length];
for (int facevertex = 0; facevertex < face.v_idx.Length; facevertex++) {
// position
vertex_list[facevertex].Position = wff.positions[face.v_idx[facevertex]].Xyz;
// normal
int normal_idx = face.n_idx[facevertex];
if (normal_idx != -1) {
vertex_list[facevertex].Normal = wff.normals[normal_idx];
}
// texture coordinate
int tex_index = face.tex_idx[facevertex];
if (tex_index != -1 ) {
vertex_list[facevertex].Tu = wff.texCoords[tex_index].X;
vertex_list[facevertex].Tv = 1- wff.texCoords[tex_index].Y;
}
}
// turn them into indicies in the vertex soup..
// .. we hand the soup a set of fully configured verticies. It
// .. dedups and accumulates them, and hands us back indicies
// .. relative to it's growing list of deduped verticies.
UInt16[] soup_indicies = soup.digestVerticies(vertex_list);
// now we add these indicies to the draw-list. Right now we assume
// draw is using GL_TRIANGLE, so we convert NGONS into triange lists
if (soup_indicies.Length == 3) { // triangle
draw_indicies.Add(soup_indicies[0]);
draw_indicies.Add(soup_indicies[1]);
draw_indicies.Add(soup_indicies[2]);
} else if (soup_indicies.Length == 4) { // quad
draw_indicies.Add(soup_indicies[0]);
draw_indicies.Add(soup_indicies[1]);
draw_indicies.Add(soup_indicies[2]);
draw_indicies.Add(soup_indicies[0]);
draw_indicies.Add(soup_indicies[2]);
draw_indicies.Add(soup_indicies[3]);
} else {
// This n-gon algorithm only works if the n-gon is coplanar and convex,
// which Wavefront OBJ says they must be.
// .. to tesselate concave ngons, one must tesselate using a more complex method, see
// http://en.wikipedia.org/wiki/Polygon_triangulation#Ear_clipping_method
// manually generate a triangle-fan
for (int x = 1; x < (soup_indicies.Length-1); x++) {
draw_indicies.Add(soup_indicies[0]);
draw_indicies.Add(soup_indicies[x]);
draw_indicies.Add(soup_indicies[x+1]);
}
// throw new NotImplementedException("unhandled face size: " + newindicies.Length);
}
}
// convert the linked-lists into arrays and return
indicies_return = draw_indicies.ToArray();
verticies_return = soup.verticies.ToArray();
Console.WriteLine ("VertexSoup_VertexFormatBinder:generateDrawIndexBuffer : \r\n {0} verticies, {1} indicies. Dedup = {2}",
verticies_return.Length, indicies_return.Length,
shouldDedup ? "YES" : "NO");
}
private void _loadData(SSAssetManager.Context ctx ,WavefrontObjLoader m)
{
foreach (var srcmat in m.materials) {
if (srcmat.faces.Count != 0) {
this.geometrySubsets.Add(_loadMaterialSubset(ctx, m, srcmat));
}
}
}
private SSMeshOBJSubsetData _loadMaterialSubset(SSAssetManager.Context ctx, WavefrontObjLoader wff,
WavefrontObjLoader.MaterialInfoWithFaces objMatSubset)
{
// generate renderable geometry data...
SSVertex_PosNormTexDiff[] vertices;
UInt16[] triIndices, wireframeIndices;
VertexSoup_VertexFormatBinder.generateDrawIndexBuffer(
wff, out triIndices, out vertices);
wireframeIndices = OpenTKHelper.generateLineIndicies (triIndices);
SSMeshOBJSubsetData subsetData = new SSMeshOBJSubsetData(
vertices, triIndices, wireframeIndices);
// setup the material...
// load and link every texture present
subsetData.TextureMaterial = new SSTextureMaterial();
if (objMatSubset.mtl.diffuseTextureResourceName != null) {
subsetData.TextureMaterial.diffuseTex = SSAssetManager.GetInstance<SSTexture>(ctx, objMatSubset.mtl.diffuseTextureResourceName);
}
if (objMatSubset.mtl.ambientTextureResourceName != null) {
subsetData.TextureMaterial.ambientTex = SSAssetManager.GetInstance<SSTexture>(ctx, objMatSubset.mtl.ambientTextureResourceName);
}
if (objMatSubset.mtl.bumpTextureResourceName != null) {
subsetData.TextureMaterial.bumpMapTex = SSAssetManager.GetInstance<SSTexture>(ctx, objMatSubset.mtl.bumpTextureResourceName);
}
if (objMatSubset.mtl.specularTextureResourceName != null) {
subsetData.TextureMaterial.specularTex = SSAssetManager.GetInstance<SSTexture>(ctx, objMatSubset.mtl.specularTextureResourceName);
}
return subsetData;
}
public MainWindow()
{
InitializeComponent();
//摄像头
myPCamera = new PerspectiveCamera();
myPCamera.Position = new Point3D(0, 0, 200);
myPCamera.LookDirection = new Vector3D(0, 0, -1);
myPCamera.FieldOfView = 1000;
vp.Camera = myPCamera;
Model3DGroup myModel3DGroup = new Model3DGroup();
//光源
//AmbientLight （自然光）
//DirectionalLight （方向光）
//PointLight （点光源）
//SpotLight （聚光源）
DirectionalLight myDirectionalLight = new DirectionalLight();
myDirectionalLight.Color = Colors.White;
myDirectionalLight.Direction = new Vector3D(197.862232727069, 17.7047755886957, -11.8470804909344);
myModel3DGroup.Children.Add(myDirectionalLight);
//DirectionalLight myDirectionalLight2 = new DirectionalLight();
//myDirectionalLight2.Color = Colors.White;
//myDirectionalLight2.Direction = new Vector3D(0.61, 0.5, 0.61);
//myModel3DGroup.Children.Add(myDirectionalLight2);
//new一个loader对象
WavefrontObjLoader wfl = new WavefrontObjLoader();
//ModelVisual3DWithName是WavefrontObjLoader定义的继承ModelVisual3D的对象，直接使用ModelVisual3D也是可以的
//导入obj，第一个模型命名为m
//ModelVisual3DWithName m = wfl.LoadObjFile(@"C:\Users\renzeming\Downloads\WpfApplication2\Lancer_Evolution_10.obj");
//m.Content = myModel3DGroup;
//导入obj，第二个模型命名为n
var n = wfl.LoadObjFile(@"E:\Mine\Items\Demos\WebApplication1\Example_WPF_donghua\texttrue\low.obj");
n.Content = myModel3DGroup;
//下面是调整n的位置，初学者可以先注释掉。
var tt = new TranslateTransform3D();
//tt.OffsetX = 110;
//tt.OffsetZ = -50;
//tt.OffsetY = -100;
var tr = new RotateTransform3D();
tr.Rotation = new AxisAngleRotation3D(new Vector3D(1, 0, 0), 90);
var tr2 = new RotateTransform3D();
tr2.Rotation = new AxisAngleRotation3D(new Vector3D(0, 0, 1), 90);
var ts = new ScaleTransform3D();
ts.ScaleX = 1.5;
ts.ScaleY = 1.5;
ts.ScaleZ = 1.6;
var tg = new Transform3DGroup();
tg.Children.Add(tr); tg.Children.Add(tr2);
tg.Children.Add(tt); tg.Children.Add(ts);
n.Transform = tg;
//将两个模型添加到场景中
//vp.Children.Add(m);
//197.862232727069,17.7047755886957,-11.8470804909344
vp.Children.Add(n);
InitializeComponent();
}