/// <summary>
/// Create a mesh from wavefront obj file format using Tangent and Binormal vertex format
/// </summary>
/// <param name="device">Device</param>
/// <param name="filename">Filename</param>
/// <returns>Mesh</returns>
public static SharpMesh CreateNormalMappedFromObj(SharpDevice device, string filename)
{
SharpMesh mesh = new SharpMesh(device);
WaveFrontModel[] modelParts = WaveFrontModel.CreateFromObj(filename);
mesh.Device = device;
mesh.SubSets = new List <SharpSubSet>();
List <TangentVertex> vertices = new List <TangentVertex>();
List <int> indices = new List <int>();
int vcount = 0;
int icount = 0;
foreach (WaveFrontModel model in modelParts)
{
vertices.AddRange(model.TangentData);
indices.AddRange(model.IndexData.Select(i => i + vcount));
var mate = model.MeshMaterial.First();
ShaderResourceView tex = null;
ShaderResourceView ntex = null;
if (!string.IsNullOrEmpty(mate.DiffuseMap))
{
string textureFile = Path.GetDirectoryName(filename) + "\\" + Path.GetFileName(mate.DiffuseMap);
tex = device.LoadTextureFromFile(textureFile);
string normalMap = Path.GetDirectoryName(textureFile) + "\\" + Path.GetFileNameWithoutExtension(textureFile) + "N" + Path.GetExtension(textureFile);
ntex = device.LoadTextureFromFile(normalMap);
}
mesh.SubSets.Add(new SharpSubSet()
{
IndexCount = model.IndexData.Count,
StartIndex = icount,
DiffuseMap = tex,
NormalMap = ntex
});
vcount += model.VertexData.Count;
icount += model.IndexData.Count;
}
mesh.VertexBuffer = Buffer11.Create <TangentVertex>(device.Device, BindFlags.VertexBuffer, vertices.ToArray());
mesh.IndexBuffer = Buffer11.Create(device.Device, BindFlags.IndexBuffer, indices.ToArray());
mesh.VertexSize = SharpDX.Utilities.SizeOf <TangentVertex>();
return(mesh);
}
