public static BasicModel LoadSdkMesh(Device device, TextureManager11 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 MeshSubset()
{
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);
}
ret._meshCount = ret.SubsetCount;
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 = MathF.Maximize(max, vertex.Pos);
min = MathF.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 Noire.Common.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[TextureManager11.TexDefault]);
}
if (!string.IsNullOrEmpty(sdkMeshMaterial.NormalTexture))
{
ret.NormalMapSRV.Add(texMgr.CreateTexture(Path.Combine(texturePath, sdkMeshMaterial.NormalTexture)));
}
else
{
ret.NormalMapSRV.Add(texMgr[TextureManager11.TexDefaultNorm]);
}
}
ret.ModelMesh.SetSubsetTable(ret.Subsets);
ret.ModelMesh.SetVertices(device, ret.Vertices);
ret.ModelMesh.SetIndices(device, ret.Indices);
return(ret);
}
public void SetMaterial(Material m) {
// 这里如果内存释放不当非常容易引发内存泄漏！
using (var dataStream = DataStream.Create(NoireUtilities.StructureToBytes(m), false, false)) {
_mat.SetRawValue(dataStream, Material.Stride);
}
}
