protected override void InitFromMeshData(Device device, GeometryGenerator.MeshData mesh)
{
var subset = new MeshGeometry.Subset {
FaceCount = mesh.Indices.Count / 3,
FaceStart = 0,
VertexCount = mesh.Vertices.Count,
VertexStart = 0
};
Subsets.Add(subset);
var max = new Vector3(float.MinValue);
var min = new Vector3(float.MaxValue);
foreach (var vertex in mesh.Vertices)
{
max = Vector3.Maximize(max, vertex.Position);
min = Vector3.Minimize(min, vertex.Position);
}
BoundingBox = new BoundingBox(min, max);
Vertices.AddRange(mesh.Vertices.Select(v => new PosNormalTexTan(v.Position, v.Normal, v.TexC, v.TangentU)).ToList());
Indices.AddRange(mesh.Indices.Select(i => (short)i));
Materials.Add(new Material {
Ambient = Color.Gray, Diffuse = Color.White, Specular = new Color4(16, 1, 1, 1)
});
DiffuseMapSRV.Add(null);
NormalMapSRV.Add(null);
ModelMesh.SetSubsetTable(Subsets);
ModelMesh.SetVertices(device, Vertices);
ModelMesh.SetIndices(device, Indices);
}
public static BasicModel LoadSdkMesh(Device device, TextureManager texMgr, string filename, string texturePath) {
// NOTE: this assumes that the model file only contains a single mesh
var sdkMesh = new SdkMesh(filename);
var ret = new BasicModel();
var faceStart = 0;
var vertexStart = 0;
foreach (var sdkMeshSubset in sdkMesh.Subsets) {
var subset = new MeshGeometry.Subset {
FaceCount = (int)(sdkMeshSubset.IndexCount / 3),
FaceStart = faceStart,
VertexCount = (int)sdkMeshSubset.VertexCount,
VertexStart = vertexStart
};
// fixup any subset indices that assume that all vertices and indices are not in the same buffers
faceStart = subset.FaceStart + subset.FaceCount;
vertexStart = subset.VertexStart + subset.VertexCount;
ret.Subsets.Add(subset);
}
var max = new Vector3(float.MinValue);
var min = new Vector3(float.MaxValue);
foreach (var vb in sdkMesh.VertexBuffers) {
foreach (var vertex in vb.Vertices) {
max = Vector3.Maximize(max, vertex.Pos);
min = Vector3.Minimize(min, vertex.Pos);
ret.Vertices.Add(vertex);
}
}
ret.BoundingBox = new BoundingBox(min, max);
foreach (var ib in sdkMesh.IndexBuffers) {
ret.Indices.AddRange(ib.Indices.Select(i => i));
}
foreach (var sdkMeshMaterial in sdkMesh.Materials) {
var material = new Material {
Ambient = sdkMeshMaterial.Ambient,
Diffuse = sdkMeshMaterial.Diffuse,
Reflect = Color.Black,
Specular = sdkMeshMaterial.Specular
};
material.Specular.Alpha = sdkMeshMaterial.Power;
ret.Materials.Add(material);
if (!string.IsNullOrEmpty(sdkMeshMaterial.DiffuseTexture)) {
ret.DiffuseMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, sdkMeshMaterial.DiffuseTexture)));
} else {
ret.DiffuseMapSRV.Add(texMgr["default"]);
}
if (!string.IsNullOrEmpty(sdkMeshMaterial.NormalTexture)) {
ret.NormalMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, sdkMeshMaterial.NormalTexture)));
} else {
ret.NormalMapSRV.Add(texMgr["defaultNorm"]);
}
}
ret.ModelMesh.SetSubsetTable(ret.Subsets);
ret.ModelMesh.SetVertices(device, ret.Vertices);
ret.ModelMesh.SetIndices(device, ret.Indices);
return ret;
}
public BasicModel(Device device, TextureManager texMgr, string filename, string texturePath, bool flipUV = false)
{
var importer = new AssimpImporter();
if (!importer.IsImportFormatSupported(Path.GetExtension(filename)))
{
throw new ArgumentException("Model format " + Path.GetExtension(filename) + " is not supported! Cannot load {1}", "filename");
}
#if DEBUG
importer.AttachLogStream(new ConsoleLogStream());
importer.VerboseLoggingEnabled = true;
#endif
var postProcessFlags = PostProcessSteps.GenerateSmoothNormals | PostProcessSteps.CalculateTangentSpace;
if (flipUV)
{
postProcessFlags |= PostProcessSteps.FlipUVs;
}
var model = importer.ImportFile(filename, postProcessFlags);
var min = new Vector3(float.MaxValue);
var max = new Vector3(float.MinValue);
foreach (var mesh in model.Meshes)
{
var verts = new List <PosNormalTexTan>();
var subset = new MeshGeometry.Subset {
VertexCount = mesh.VertexCount,
VertexStart = Vertices.Count,
FaceStart = Indices.Count / 3,
FaceCount = mesh.FaceCount
};
Subsets.Add(subset);
// bounding box corners
for (var i = 0; i < mesh.VertexCount; i++)
{
var pos = mesh.HasVertices ? mesh.Vertices[i].ToVector3() : new Vector3();
min = Vector3.Minimize(min, pos);
max = Vector3.Maximize(max, pos);
var norm = mesh.HasNormals ? mesh.Normals[i] : new Vector3D();
var texC = mesh.HasTextureCoords(0) ? mesh.GetTextureCoords(0)[i] : new Vector3D();
var tan = mesh.HasTangentBasis ? mesh.Tangents[i] : new Vector3D();
var v = new PosNormalTexTan(pos, norm.ToVector3(), texC.ToVector2(), tan.ToVector3());
verts.Add(v);
}
Vertices.AddRange(verts);
var indices = mesh.GetIndices().Select(i => (short)(i + (uint)subset.VertexStart)).ToList();
Indices.AddRange(indices);
var mat = model.Materials[mesh.MaterialIndex];
var material = mat.ToMaterial();
Materials.Add(material);
var diffusePath = mat.GetTexture(TextureType.Diffuse, 0).FilePath;
if (Path.GetExtension(diffusePath) == ".tga")
{
// DirectX doesn't like to load tgas, so you will need to convert them to pngs yourself with an image editor
diffusePath = diffusePath.Replace(".tga", ".png");
}
if (!string.IsNullOrEmpty(diffusePath))
{
DiffuseMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, diffusePath)));
}
var normalPath = mat.GetTexture(TextureType.Normals, 0).FilePath;
if (!string.IsNullOrEmpty(normalPath))
{
NormalMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, normalPath)));
}
else
{
var normalExt = Path.GetExtension(diffusePath);
normalPath = Path.GetFileNameWithoutExtension(diffusePath) + "_nmap" + normalExt;
NormalMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, normalPath)));
}
}
BoundingBox = new BoundingBox(min, max);
ModelMesh.SetSubsetTable(Subsets);
ModelMesh.SetVertices(device, Vertices);
ModelMesh.SetIndices(device, Indices);
}
public static BasicModel LoadFromTxtFile(Device device, string filename)
{
var vertices = new List <Basic32>();
var indices = new List <int>();
var vcount = 0;
var tcount = 0;
using (var reader = new StreamReader(filename)) {
var input = reader.ReadLine();
if (input != null)
{
// VertexCount: X
vcount = Convert.ToInt32(input.Split(new[] { ':' })[1].Trim());
}
input = reader.ReadLine();
if (input != null)
{
//TriangleCount: X
tcount = Convert.ToInt32(input.Split(new[] { ':' })[1].Trim());
}
// skip ahead to the vertex data
do
{
input = reader.ReadLine();
} while (input != null && !input.StartsWith("{"));
// Get the vertices
for (int i = 0; i < vcount; i++)
{
input = reader.ReadLine();
if (input != null)
{
var vals = input.Split(new[] { ' ' });
vertices.Add(
new Basic32(
new Vector3(
Convert.ToSingle(vals[0].Trim()),
Convert.ToSingle(vals[1].Trim()),
Convert.ToSingle(vals[2].Trim())),
new Vector3(
Convert.ToSingle(vals[3].Trim()),
Convert.ToSingle(vals[4].Trim()),
Convert.ToSingle(vals[5].Trim())),
new Vector2()
)
);
}
}
// skip ahead to the index data
do
{
input = reader.ReadLine();
} while (input != null && !input.StartsWith("{"));
// Get the indices
for (var i = 0; i < tcount; i++)
{
input = reader.ReadLine();
if (input == null)
{
break;
}
var m = input.Trim().Split(new[] { ' ' });
indices.Add(Convert.ToInt32(m[0].Trim()));
indices.Add(Convert.ToInt32(m[1].Trim()));
indices.Add(Convert.ToInt32(m[2].Trim()));
}
}
var ret = new BasicModel();
var subset = new MeshGeometry.Subset {
FaceCount = indices.Count / 3,
FaceStart = 0,
VertexCount = vertices.Count,
VertexStart = 0
};
ret.Subsets.Add(subset);
var max = new Vector3(float.MinValue);
var min = new Vector3(float.MaxValue);
foreach (var vertex in vertices)
{
max = Vector3.Maximize(max, vertex.Position);
min = Vector3.Minimize(min, vertex.Position);
}
ret.BoundingBox = new BoundingBox(min, max);
ret.Vertices.AddRange(vertices.Select(v => new PosNormalTexTan(v.Position, v.Normal, v.Tex, new Vector3(1, 0, 0))).ToList());
ret.Indices.AddRange(indices.Select(i => (short)i));
ret.Materials.Add(new Material {
Ambient = Color.Gray, Diffuse = Color.White, Specular = new Color4(16, 1, 1, 1)
});
ret.DiffuseMapSRV.Add(null);
ret.NormalMapSRV.Add(null);
ret.ModelMesh.SetSubsetTable(ret.Subsets);
ret.ModelMesh.SetVertices(device, ret.Vertices);
ret.ModelMesh.SetIndices(device, ret.Indices);
return(ret);
}
public SkinnedModel(Device device, TextureManager texMgr, string filename, string texturePath, bool flipTexY = false)
{
var importer = new AssimpImporter();
#if DEBUG
importer.AttachLogStream(new ConsoleLogStream());
importer.VerboseLoggingEnabled = true;
#endif
var model = importer.ImportFile(filename, PostProcessSteps.GenerateSmoothNormals | PostProcessSteps.CalculateTangentSpace);
// Load animation data
Animator = new SceneAnimator();
Animator.Init(model);
// create our vertex-to-boneweights lookup
var vertToBoneWeight = new Dictionary <uint, List <VertexWeight> >();
// create bounding box extents
_min = new Vector3(float.MaxValue);
_max = new Vector3(float.MinValue);
foreach (var mesh in model.Meshes)
{
ExtractBoneWeightsFromMesh(mesh, vertToBoneWeight);
var subset = new MeshGeometry.Subset {
VertexCount = mesh.VertexCount,
VertexStart = Vertices.Count,
FaceStart = Indices.Count / 3,
FaceCount = mesh.FaceCount
};
Subsets.Add(subset);
var verts = ExtractVertices(mesh, vertToBoneWeight, flipTexY);
Vertices.AddRange(verts);
// extract indices and shift them to the proper offset into the combined vertex buffer
var indices = mesh.GetIndices().Select(i => (short)(i + (uint)subset.VertexStart)).ToList();
Indices.AddRange(indices);
// extract materials
var mat = model.Materials[mesh.MaterialIndex];
var material = mat.ToMaterial();
Materials.Add(material);
// extract material textures
var diffusePath = mat.GetTexture(TextureType.Diffuse, 0).FilePath;
if (!string.IsNullOrEmpty(diffusePath))
{
DiffuseMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, diffusePath)));
}
var normalPath = mat.GetTexture(TextureType.Normals, 0).FilePath;
if (!string.IsNullOrEmpty(normalPath))
{
NormalMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, normalPath)));
}
else
{
// for models created without a normal map baked, we'll check for a texture with the same
// filename as the diffure texture, and _nmap suffixed
// this lets us add our own normal maps easily
var normalExt = Path.GetExtension(diffusePath);
normalPath = Path.GetFileNameWithoutExtension(diffusePath) + "_nmap" + normalExt;
if (File.Exists(Path.Combine(texturePath, normalPath)))
{
NormalMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, normalPath)));
}
}
}
BoundingBox = new BoundingBox(_min, _max);
ModelMesh.SetSubsetTable(Subsets);
ModelMesh.SetVertices(device, Vertices);
ModelMesh.SetIndices(device, Indices);
}
