public void Read_File_Valid()
{
var temp = Path.GetTempFileName();
try
{
File.WriteAllText(temp, "shadow_obj a.a");
var obj = ObjFile.FromFile(temp);
Assert.Equal("a.a", obj.ShadowObjectFileName);
}
finally
{
File.Delete(temp);
}
}
public GraphicalObject(string objFile, string mtlFile, GL Gl, Shader s)
{
obj = ObjFile.FromFile(objFile);
mtl = ObjMaterialFile.FromFile(mtlFile);
associatedShader = s;
this.Gl = Gl;
(vertices, indices) = CreateVertexInfo();
Ebo = new BufferObject <uint>(Gl, indices, BufferTargetARB.ElementArrayBuffer);
Vbo = new BufferObject <float>(Gl, vertices, BufferTargetARB.ArrayBuffer);
Vao = new VertexArrayObject <float, uint>(Gl, Vbo, Ebo);
Vao.VertexAttributePointer(0, 3, VertexAttribPointerType.Float, 8, 0);
Vao.VertexAttributePointer(1, 3, VertexAttribPointerType.Float, 8, 3);
Vao.VertexAttributePointer(2, 2, VertexAttribPointerType.Float, 8, 6);
}
public static Pm3DModel FromObjLods(params string[] filenames)
{
var lods = new List <Pm3DLod>();
foreach (var filename in filenames)
{
var obj = ObjFile.FromFile(filename);
var objects = obj
.Faces
.GroupBy(face => face.ObjectName)
.ToDictionary(grouping => grouping.Key ?? "", grouping => grouping.ToList());
lods.Add(new Pm3DLod(objects, obj.Vertices, obj.VertexNormals, obj.TextureVertices));
}
return(new Pm3DModel(lods));
}
public static Model FromFile(string filename)
{
ExpectFile($"{filename}.json");
ExpectFile($"{filename}.obj");
var json = BlockbenchModel.FromFile($"{filename}.json");
var obj = ObjFile.FromFile($"{filename}.obj");
var objects = obj
.Faces
.GroupBy(face => new ModelObjectInfo(face.ObjectName, face.MaterialName))
.ToDictionary(grouping => grouping.Key, grouping => grouping.ToList());
var verts = obj.Vertices;
var normals = obj.VertexNormals;
var uvs = obj.TextureVertices;
return(new Model(json, objects, verts, normals, uvs));
}
public static BakedModel BakeModel(Shader shader, string modelName)
{
var obj = ObjFile.FromFile($"assets/models/{modelName}.obj");
var mtl = ObjMaterialFile.FromFile($"assets/models/{modelName}.mtl");
var materials = new List <ObjMaterial>(mtl.Materials);
var mat = materials.SingleOrDefault(m => m.DiffuseMap != null);
List <float> vertexes = new List <float>();
List <float> uvs = new List <float>();
List <float> normals = new List <float>();
foreach (var face in obj.Faces)
{
foreach (var triple in face.Vertices) //for each vertice of the triangle
{
var vertexIndex = triple.Vertex - 1;
var normalIndex = triple.Normal - 1;
var uvIndex = triple.Texture - 1;
var vertex = obj.Vertices[vertexIndex];
var normal = obj.VertexNormals[normalIndex];
var uv = obj.TextureVertices[uvIndex];
vertexes.Add(vertex.X);
vertexes.Add(vertex.Y);
vertexes.Add(vertex.Z);
normals.Add(normal.X);
normals.Add(normal.Y);
normals.Add(normal.Z);
uvs.Add(uv.X);
uvs.Add(1 - uv.Y);
//uvs.Add(uv.Y);
}
}
return(BakeModel(shader, $"assets/models/{mat.DiffuseMap.FileName}", vertexes.ToArray(), normals.ToArray(), uvs.ToArray()));
}
private void DrawModelWireframe()
{
var m = ObjFile.FromFile("Models/african_head.obj");
AddStage("Loading");
var bounds = m.Bounds();
var scale = _bitmap.Width / bounds.BiggestSize() - 8;
var shift = Vector3.One * _bitmap.Width / 2;
AddStage("Bounds");
foreach (var face in m.Faces)
{
var indicesCount = face.Vertices.Count;
for (var i = 0; i < indicesCount; i++)
{
var vertex0 = face.Vertices[i].Vertex;
var p0 = m.Vertices[vertex0 - 1].Position.ToVector3();
p0 *= scale;
p0 += shift;
var vertex1 = face.Vertices[(i + 1) % indicesCount].Vertex;
var p1 = m.Vertices[vertex1 - 1].Position.ToVector3();
p1 *= scale;
p1 += shift;
_bitmap.DrawLine(new Vector2(p0.X, p0.Y),
new Vector2(p1.X, p1.Y), Color.White);
}
}
AddStage("Drawing");
}
public void Read_NullFile_Throws()
{
Assert.Throws <ArgumentNullException>("path", () => ObjFile.FromFile(null));
}
public static OptFile ObjToOpt(string objPath, bool scale)
{
string objDirectory = Path.GetDirectoryName(objPath);
var obj = ObjFile.FromFile(objPath);
var opt = new OptFile();
foreach (var mesh in obj.Meshes)
{
var optMesh = new Mesh();
opt.Meshes.Add(optMesh);
if (scale)
{
foreach (var v in obj.Vertices)
{
optMesh.Vertices.Add(new Vector(v.X / OptFile.ScaleFactor, v.Z / OptFile.ScaleFactor, v.Y / OptFile.ScaleFactor));
}
}
else
{
foreach (var v in obj.Vertices)
{
optMesh.Vertices.Add(new Vector(v.X, v.Z, v.Y));
}
}
foreach (var v in obj.VertexTexCoords)
{
optMesh.TextureCoordinates.Add(new TextureCoordinates(v.U, -v.V));
}
foreach (var v in obj.VertexNormals)
{
optMesh.VertexNormals.Add(new Vector(v.X, v.Z, v.Y));
}
optMesh.TextureCoordinates.Add(new TextureCoordinates(0, 0));
optMesh.TextureCoordinates.Add(new TextureCoordinates(1, 0));
optMesh.TextureCoordinates.Add(new TextureCoordinates(1, 1));
optMesh.TextureCoordinates.Add(new TextureCoordinates(0, 1));
var optLod = new MeshLod();
optMesh.Lods.Add(optLod);
foreach (var faceGroup in mesh.FaceGroups)
{
var optFaceGroup = new FaceGroup();
optLod.FaceGroups.Add(optFaceGroup);
if (!string.IsNullOrEmpty(faceGroup.MaterialName))
{
optFaceGroup.Textures.Add(faceGroup.MaterialName);
}
foreach (var face in faceGroup.Faces)
{
Index verticesIndex = new Index(
face.VerticesIndex.A,
face.VerticesIndex.B,
face.VerticesIndex.C,
face.VerticesIndex.D);
if (verticesIndex.A >= optMesh.Vertices.Count)
{
verticesIndex.A = 0;
}
if (verticesIndex.B >= optMesh.Vertices.Count)
{
verticesIndex.B = 0;
}
if (verticesIndex.C >= optMesh.Vertices.Count)
{
verticesIndex.C = 0;
}
if (verticesIndex.D >= optMesh.Vertices.Count)
{
verticesIndex.D = 0;
}
Index textureCoordinatesIndex = new Index(
face.VertexTexCoordsIndex.A,
face.VertexTexCoordsIndex.B,
face.VertexTexCoordsIndex.C,
face.VertexTexCoordsIndex.D);
if (textureCoordinatesIndex.A >= optMesh.TextureCoordinates.Count)
{
textureCoordinatesIndex.A = 0;
}
if (textureCoordinatesIndex.B >= optMesh.TextureCoordinates.Count)
{
textureCoordinatesIndex.B = 0;
}
if (textureCoordinatesIndex.C >= optMesh.TextureCoordinates.Count)
{
textureCoordinatesIndex.C = 0;
}
if (textureCoordinatesIndex.D >= optMesh.TextureCoordinates.Count)
{
textureCoordinatesIndex.D = 0;
}
Index vertexNormalsIndex = new Index(
face.VertexNormalsIndex.A,
face.VertexNormalsIndex.B,
face.VertexNormalsIndex.C,
face.VertexNormalsIndex.D);
if (vertexNormalsIndex.A >= optMesh.VertexNormals.Count)
{
vertexNormalsIndex.A = 0;
}
if (vertexNormalsIndex.B >= optMesh.VertexNormals.Count)
{
vertexNormalsIndex.B = 0;
}
if (vertexNormalsIndex.C >= optMesh.VertexNormals.Count)
{
vertexNormalsIndex.C = 0;
}
if (vertexNormalsIndex.D >= optMesh.VertexNormals.Count)
{
vertexNormalsIndex.D = 0;
}
if (textureCoordinatesIndex.A < 0 || textureCoordinatesIndex.B < 0 || textureCoordinatesIndex.C < 0 || (verticesIndex.D >= 0 && textureCoordinatesIndex.D < 0))
{
textureCoordinatesIndex.A = optMesh.TextureCoordinates.Count - 4;
textureCoordinatesIndex.B = optMesh.TextureCoordinates.Count - 3;
textureCoordinatesIndex.C = optMesh.TextureCoordinates.Count - 2;
textureCoordinatesIndex.D = verticesIndex.D < 0 ? -1 : optMesh.TextureCoordinates.Count - 1;
}
Vector normal = Vector.Normal(
optMesh.Vertices.ElementAtOrDefault(verticesIndex.A),
optMesh.Vertices.ElementAtOrDefault(verticesIndex.B),
optMesh.Vertices.ElementAtOrDefault(verticesIndex.C));
if (vertexNormalsIndex.A < 0 || vertexNormalsIndex.B < 0 || vertexNormalsIndex.C < 0 || (verticesIndex.D >= 0 && vertexNormalsIndex.D < 0))
{
optMesh.VertexNormals.Add(normal);
vertexNormalsIndex.A = optMesh.VertexNormals.Count - 1;
vertexNormalsIndex.B = optMesh.VertexNormals.Count - 1;
vertexNormalsIndex.C = optMesh.VertexNormals.Count - 1;
vertexNormalsIndex.D = verticesIndex.D < 0 ? -1 : optMesh.VertexNormals.Count - 1;
}
var optFace = new Face()
{
VerticesIndex = verticesIndex,
TextureCoordinatesIndex = textureCoordinatesIndex,
VertexNormalsIndex = vertexNormalsIndex,
Normal = normal
};
optFaceGroup.Faces.Add(optFace);
}
}
}
opt.CompactBuffers();
opt.ComputeHitzones();
foreach (var material in obj.Materials.Values)
{
Texture texture;
if (material.DiffuseMapFileName == null)
{
var color = material.DiffuseColor;
byte r = (byte)(color.X * 255.0f);
byte g = (byte)(color.Y * 255.0f);
byte b = (byte)(color.Z * 255.0f);
int width = 8;
int height = 8;
int length = width * height;
byte[] data = new byte[length * 4];
for (int i = 0; i < length; i++)
{
data[i * 4 + 0] = b;
data[i * 4 + 1] = g;
data[i * 4 + 2] = r;
data[i * 4 + 3] = 255;
}
texture = new Texture();
texture.Name = material.Name;
texture.Width = width;
texture.Height = height;
texture.ImageData = data;
}
else
{
string colorFileName = Path.Combine(objDirectory, material.DiffuseMapFileName);
texture = Texture.FromFile(colorFileName);
texture.Name = material.Name;
}
if (material.AlphaMapFileName != null)
{
string alphaFileName = Path.Combine(objDirectory, material.AlphaMapFileName);
texture.SetAlphaMap(alphaFileName);
}
else if (material.DissolveFactor > 0.0f && material.DissolveFactor < 1.0f)
{
byte alpha = (byte)(material.DissolveFactor * 255.0f);
int length = texture.Width * texture.Height;
byte[] alphaData = new byte[length];
var data = texture.ImageData;
for (int i = 0; i < length; i++)
{
alphaData[i] = alpha;
data[i * 4 + 3] = alpha;
}
texture.AlphaData = alphaData;
}
opt.Textures.Add(texture.Name, texture);
}
opt.GenerateTexturesMipmaps();
return(opt);
}
public void CreateDeviceDependentResources(DeviceResources resources)
{
this.deviceResources = resources;
var d3dDevice = this.deviceResources.D3DDevice;
this.tessellator.CreateDeviceDependentResources(this.deviceResources);
XMFloat4[] initData;
// Parse the .obj file. Both triangle faces and quad faces are supported.
// Only v and f tags are processed, other tags like vn, vt etc are ignored.
{
var initFile = ObjFile.FromFile("BaseMesh.obj");
var data = new List <XMFloat4>();
var v = new List <XMFloat4>();
for (int i = 0; i < initFile.Vertices.Count; i++)
{
ObjVector4 objPosition = initFile.Vertices[i].Position;
XMFloat4 pos = new XMFloat4(
objPosition.X,
objPosition.Y,
objPosition.Z,
1.0f);
v.Add(pos);
}
foreach (ObjFace face in initFile.Faces)
{
if (face.Vertices.Count < 3)
{
continue;
}
data.Add(v[face.Vertices[0].Vertex - 1]);
data.Add(v[face.Vertices[1].Vertex - 1]);
data.Add(v[face.Vertices[2].Vertex - 1]);
if (face.Vertices.Count >= 4)
{
data.Add(v[face.Vertices[2].Vertex - 1]);
data.Add(v[face.Vertices[3].Vertex - 1]);
data.Add(v[face.Vertices[0].Vertex - 1]);
}
}
initData = data.ToArray();
}
this.g_pBaseVB = d3dDevice.CreateBuffer(
D3D11BufferDesc.From(initData, D3D11BindOptions.ShaderResource | D3D11BindOptions.VertexBuffer),
initData,
0,
0);
this.tessellator.SetBaseMesh((uint)initData.Length, this.g_pBaseVB);
this.g_pVS = d3dDevice.CreateVertexShader(File.ReadAllBytes("RenderVertexShader.cso"), null);
{
byte[] shaderBytecode = File.ReadAllBytes("RenderBaseVertexShader.cso");
this.g_pBaseVS = d3dDevice.CreateVertexShader(shaderBytecode, null);
D3D11InputElementDesc[] layoutDesc = new[]
{
new D3D11InputElementDesc(
"POSITION",
0,
DxgiFormat.R32G32B32A32Float,
0,
0,
D3D11InputClassification.PerVertexData,
0)
};
this.g_pBaseVBLayout = d3dDevice.CreateInputLayout(layoutDesc, shaderBytecode);
}
this.g_pPS = d3dDevice.CreatePixelShader(File.ReadAllBytes("RenderPixelShader.cso"), null);
// Setup constant buffer
this.g_pVSCB = d3dDevice.CreateBuffer(new D3D11BufferDesc
{
BindOptions = D3D11BindOptions.ConstantBuffer,
ByteWidth = 4 * 16
});
// Rasterizer state
this.g_pRasWireFrame = d3dDevice.CreateRasterizerState(new D3D11RasterizerDesc
{
CullMode = D3D11CullMode.None,
FillMode = D3D11FillMode.WireFrame
});
}
