public void CreateDeviceDependentResources(DeviceResources resources, Mesh3D mesh)
{
var vertices = mesh.Vertices.ToArray();
var vertexBufferDesc = D3D11BufferDesc.From(vertices, D3D11BindOptions.VertexBuffer);
this.vertexBuffer = resources.D3DDevice.CreateBuffer(vertexBufferDesc, vertices, 0, 0);
var indices = mesh.Indices.ToArray();
var indexBufferDesc = D3D11BufferDesc.From(indices, D3D11BindOptions.IndexBuffer);
this.indexBuffer = resources.D3DDevice.CreateBuffer(indexBufferDesc, indices, 0, 0);
this.IndicesCount = (uint)indices.Length;
this.Texture = mesh.Texture;
this.HasAlpha = mesh.HasAlpha;
}
public OptMesh(DeviceResources deviceResources, Mesh3D mesh)
{
this.CreateDeviceDependentResources(deviceResources, mesh);
}
private void CreateMeshes(OptFile opt)
{
var meshes3D = new List <Mesh3D>();
foreach (var optMesh in opt.Meshes)
{
var positions = optMesh
.Vertices
.Select(t => new XMFloat3(-t.X * OptFile.ScaleFactor, t.Z * OptFile.ScaleFactor, -t.Y * OptFile.ScaleFactor))
.ToList();
var normals = optMesh
.VertexNormals
.Select(t => new XMFloat3(t.X, t.Z, t.Y))
.ToList();
var textureCoordinates = optMesh
.TextureCoordinates
.Select(t => new XMFloat2(t.U, -t.V))
.ToList();
var optLod = optMesh.Lods.FirstOrDefault();
if (optLod == null)
{
continue;
}
foreach (var optFaceGroup in optLod.FaceGroups)
{
var mesh3D = new Mesh3D();
meshes3D.Add(mesh3D);
var optTextureName = optFaceGroup.Textures[0];
mesh3D.Texture = optTextureName;
opt.Textures.TryGetValue(optTextureName, out Texture texture);
mesh3D.HasAlpha = texture == null ? false : texture.HasAlpha;
ushort index = 0;
foreach (var optFace in optFaceGroup.Faces)
{
Index positionsIndex = optFace.VerticesIndex;
Index normalsIndex = optFace.VertexNormalsIndex;
Index textureCoordinatesIndex = optFace.TextureCoordinatesIndex;
BasicVertex vertex = new BasicVertex();
vertex.Position = positions.ElementAtOrDefault(positionsIndex.C);
vertex.Normal = normals.ElementAtOrDefault(normalsIndex.C);
vertex.TextureCoordinates = textureCoordinates.ElementAtOrDefault(textureCoordinatesIndex.C);
mesh3D.Vertices.Add(vertex);
mesh3D.Indices.Add(index);
index++;
vertex.Position = positions.ElementAtOrDefault(positionsIndex.B);
vertex.Normal = normals.ElementAtOrDefault(normalsIndex.B);
vertex.TextureCoordinates = textureCoordinates.ElementAtOrDefault(textureCoordinatesIndex.B);
mesh3D.Vertices.Add(vertex);
mesh3D.Indices.Add(index);
index++;
vertex.Position = positions.ElementAtOrDefault(positionsIndex.A);
vertex.Normal = normals.ElementAtOrDefault(normalsIndex.A);
vertex.TextureCoordinates = textureCoordinates.ElementAtOrDefault(textureCoordinatesIndex.A);
mesh3D.Vertices.Add(vertex);
mesh3D.Indices.Add(index);
index++;
if (positionsIndex.D >= 0)
{
mesh3D.Indices.Add((ushort)(index - 3U));
mesh3D.Indices.Add((ushort)(index - 1U));
vertex.Position = positions.ElementAtOrDefault(positionsIndex.D);
vertex.Normal = normals.ElementAtOrDefault(normalsIndex.D);
vertex.TextureCoordinates = textureCoordinates.ElementAtOrDefault(textureCoordinatesIndex.D);
mesh3D.Vertices.Add(vertex);
mesh3D.Indices.Add(index);
index++;
}
}
}
}
foreach (var mesh3d in meshes3D)
{
var mesh = new OptMesh(this.deviceResources, mesh3d);
this.meshes.Add(mesh);
}
}