public void TestMeshPartPool() { XNAGame game = new XNAGame(); game.DrawFps = true; var pool = new MeshPartPool(); game.AddXNAObject(pool); RAMMeshPart meshPart = new RAMMeshPart(); meshPart.SetGeometryData(MeshPartGeometryData.CreateTestSquare()); DefaultModelShader shader = null; VertexDeclaration decl = null; game.InitializeEvent += delegate { decl = TangentVertexExtensions.CreateVertexDeclaration(game); shader = new DefaultModelShader(game, new EffectPool()); shader.DiffuseColor = Color.Red.ToVector4(); shader.Technique = DefaultModelShader.TechniqueType.Colored; }; game.DrawEvent += delegate { game.GraphicsDevice.RenderState.CullMode = CullMode.None; game.GraphicsDevice.VertexDeclaration = decl; shader.ViewProjection = game.Camera.ViewProjection; shader.World = Matrix.CreateTranslation(Vector3.Right * 0 * 3) * Matrix.CreateScale(10); shader.DrawPrimitives(delegate { var vb = pool.GetVertexBuffer(meshPart); var ib = pool.GetIndexBuffer(meshPart); var vertexCount = meshPart.GetGeometryData().GetSourceVector3(MeshPartGeometryData.Semantic.Position).Length; game.GraphicsDevice.Vertices[0].SetSource(vb, 0, TangentVertex.SizeInBytes); game.GraphicsDevice.Indices = ib; game.GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, vertexCount, 0, vertexCount / 3); }); }; game.Run(); }
public MeshCoreData.Part CreateMeshPart(OBJGroup.SubObject sub) { if (sub.Faces.Count == 0) { return(null); } Vector3[] positions = new Vector3[sub.Faces.Count * 3]; Vector3[] normals = new Vector3[sub.Faces.Count * 3]; Vector2[] texcoords = new Vector2[sub.Faces.Count * 3]; // Note that faces are flipped in this piece of code!!! for (int k = 0; k < sub.Faces.Count; k++) { var face = sub.Faces[k]; positions[k * 3 + 0] = importer.Vertices[face.V1.Position]; positions[k * 3 + 1] = importer.Vertices[face.V3.Position]; positions[k * 3 + 2] = importer.Vertices[face.V2.Position]; normals[k * 3 + 0] = importer.Normals[face.V1.Normal]; normals[k * 3 + 1] = importer.Normals[face.V3.Normal]; normals[k * 3 + 2] = importer.Normals[face.V2.Normal]; texcoords[k * 3 + 0] = new Vector2(importer.TexCoords[face.V1.TextureCoordinate].X, 1 - importer.TexCoords[face.V1.TextureCoordinate].Y); texcoords[k * 3 + 1] = new Vector2(importer.TexCoords[face.V3.TextureCoordinate].X, 1 - importer.TexCoords[face.V3.TextureCoordinate].Y); texcoords[k * 3 + 2] = new Vector2(importer.TexCoords[face.V2.TextureCoordinate].X, 1 - importer.TexCoords[face.V2.TextureCoordinate].Y); } TangentSolver solver = new TangentSolver(); var tangents = solver.GenerateTangents(positions, normals, texcoords).Select(f => new Vector3(f.X, f.Y, f.Z)).ToArray(); var positionsSource = new MeshPartGeometryData.Source(); positionsSource.DataVector3 = positions; positionsSource.Semantic = MeshPartGeometryData.Semantic.Position; var normalsSource = new MeshPartGeometryData.Source(); normalsSource.DataVector3 = normals; normalsSource.Semantic = MeshPartGeometryData.Semantic.Normal; var texcoordsSource = new MeshPartGeometryData.Source(); texcoordsSource.DataVector2 = texcoords; texcoordsSource.Semantic = MeshPartGeometryData.Semantic.Texcoord; var tangentsSource = new MeshPartGeometryData.Source(); tangentsSource.DataVector3 = tangents; tangentsSource.Semantic = MeshPartGeometryData.Semantic.Tangent; var part = new MeshCoreData.Part(); part.MeshMaterial = materials[sub.Material]; var meshPart = new RAMMeshPart(); meshPart.GetGeometryData().Sources.Add(positionsSource); meshPart.GetGeometryData().Sources.Add(normalsSource); meshPart.GetGeometryData().Sources.Add(texcoordsSource); meshPart.GetGeometryData().Sources.Add(tangentsSource); part.MeshPart = meshPart; part.ObjectMatrix = Matrix.Identity; return(part); }
private void convertSubObjectRenderPart(RAMMesh mesh, OBJGroup.SubObject sub, ObjImporter importer, Dictionary <OBJMaterial, MeshCoreData.Material> materials) { if (sub.Faces.Count == 0) { return; } var meshCoreData = mesh.GetCoreData(); Vector3[] positions = new Vector3[sub.Faces.Count * 3]; Vector3[] normals = new Vector3[sub.Faces.Count * 3]; Vector2[] texcoords = new Vector2[sub.Faces.Count * 3]; for (int k = 0; k < sub.Faces.Count; k++) { var face = sub.Faces[k]; positions[k * 3 + 0] = importer.Vertices[face.V1.Position]; positions[k * 3 + 1] = importer.Vertices[face.V2.Position]; positions[k * 3 + 2] = importer.Vertices[face.V3.Position]; normals[k * 3 + 0] = importer.Normals[face.V1.Normal]; normals[k * 3 + 1] = importer.Normals[face.V2.Normal]; normals[k * 3 + 2] = importer.Normals[face.V3.Normal]; texcoords[k * 3 + 0] = new Vector2(importer.TexCoords[face.V1.TextureCoordinate].X, 1 - importer.TexCoords[face.V1.TextureCoordinate].Y); texcoords[k * 3 + 1] = new Vector2(importer.TexCoords[face.V2.TextureCoordinate].X, 1 - importer.TexCoords[face.V2.TextureCoordinate].Y); texcoords[k * 3 + 2] = new Vector2(importer.TexCoords[face.V3.TextureCoordinate].X, 1 - importer.TexCoords[face.V3.TextureCoordinate].Y); } TangentSolver solver = new TangentSolver(); var tangents = solver.GenerateTangents(positions, normals, texcoords).Select(f => new Vector3(f.X, f.Y, f.Z)).ToArray(); var positionsSource = new MeshPartGeometryData.Source(); positionsSource.DataVector3 = positions; positionsSource.Semantic = MeshPartGeometryData.Semantic.Position; var normalsSource = new MeshPartGeometryData.Source(); normalsSource.DataVector3 = normals; normalsSource.Semantic = MeshPartGeometryData.Semantic.Normal; var texcoordsSource = new MeshPartGeometryData.Source(); texcoordsSource.DataVector2 = texcoords; texcoordsSource.Semantic = MeshPartGeometryData.Semantic.Texcoord; var tangentsSource = new MeshPartGeometryData.Source(); tangentsSource.DataVector3 = tangents; tangentsSource.Semantic = MeshPartGeometryData.Semantic.Tangent; var part = new MeshCoreData.Part(); part.MeshMaterial = materials[sub.Material]; var meshPart = new RAMMeshPart(); meshPart.GetGeometryData().Sources.Add(positionsSource); meshPart.GetGeometryData().Sources.Add(normalsSource); meshPart.GetGeometryData().Sources.Add(texcoordsSource); meshPart.GetGeometryData().Sources.Add(tangentsSource); part.MeshPart = meshPart; part.ObjectMatrix = Matrix.Identity; meshCoreData.Parts.Add(part); }