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 void TestSupportedFormats() { AssimpImporter importer = new AssimpImporter(); ExportFormatDescription[] exportDescs = importer.GetSupportedExportFormats(); String[] importFormats = importer.GetSupportedImportFormats(); Assert.IsNotNull(exportDescs); Assert.IsNotNull(importFormats); Assert.IsTrue(exportDescs.Length >= 1); Assert.IsTrue(importFormats.Length >= 1); Assert.IsTrue(importer.IsExportFormatSupported(exportDescs[0].FileExtension)); Assert.IsTrue(importer.IsImportFormatSupported(importFormats[0])); }