private TextureProvider[] InitTextures(Assimp.Scene aiScene, string filename)
{
var textureProviders = new TextureProvider[aiScene.MaterialCount];
// Extract the directory part from the file name
string directory = new FileInfo(filename).DirectoryName;
// Initialize the materials
for (uint i = 0; i < aiScene.MaterialCount; i++)
{
Assimp.Material material = aiScene.Materials[i];
if (material.GetTextureCount(Assimp.TextureType.Diffuse) > 0)
{
Assimp.TextureSlot slot = material.GetTexture(Assimp.TextureType.Diffuse, 0);
string fullname = Path.Combine(directory, slot.FilePath);
var provider = new TextureProvider(fullname);
textureProviders[i] = provider;
}
}
return(textureProviders);
}
internal static Mesh3D LoadFromFileSUB(Device device, Assimp.Scene pScene, InputElement[] ieLayout, List <SceneObject> meshArr)
{
string sourceTextures = ConfigurationSettings.AppSettings["SourceTextures"];
int iVBufferSize = 0;
int iIBufferSize = 0;
foreach (SceneObject so in meshArr)
{
iVBufferSize += (int)so.pMesh.VertexCount;
iIBufferSize += (int)so.pMesh.FaceCount * 3;
}
MeshInputElements10.sNormalMesh[] tVertex = new MeshInputElements10.sNormalMesh[iVBufferSize];
//short[] tIndex = new short[iIBufferSize];
uint[] tIndex = new uint[iIBufferSize];
MeshAttributeRange[] tAttibutes = new MeshAttributeRange[meshArr.Count];
MeshNode[] nodes = new MeshNode[meshArr.Count];
string[] tTextures = new string[meshArr.Count];
// Monitor global poisition in the vertex, index and attribute buffers.
int iAttribute = 0;
int iBVertex = 0;
int iBIndex = 0;
int prevVertCount = 0;
foreach (SceneObject so in meshArr)
{
MeshNode n = new MeshNode();
n.attributeId = iAttribute;
n.nodeName = so.nodeName;
n.parentNodeName = so.parentNodeName;
n.transform = toDXMat(so.transform);
nodes[iAttribute] = n;
MeshAttributeRange pAttrib = new MeshAttributeRange();
pAttrib.Id = iAttribute;
pAttrib.VertexStart = iBVertex;
pAttrib.FaceStart = iBIndex / 3;
Assimp.Material mat = pScene.Materials[so.pMesh.MaterialIndex];
if (mat.GetTextureCount(Assimp.TextureType.Diffuse) > 0)
{
string inputFilePath = mat.GetTexture(Assimp.TextureType.Diffuse, 0).FilePath.Replace("\\\\", "\\");
string inputFileName = Path.GetFileName(inputFilePath);
string ext = Path.GetExtension(inputFileName);
string subFolder = inputFilePath.Replace(sourceTextures, "").Split('\\')[1];
string diffOutFile = subFolder + "\\" + inputFileName.Replace(ext, ".dds");
tTextures[iAttribute] = diffOutFile;
}
// Copy verticies.
int iMeshVerts = (int)so.pMesh.VertexCount;
for (int iVertex = 0; iVertex < iMeshVerts; ++iVertex)
{
tVertex[iVertex + iBVertex] = getVert(so, iVertex);
}
// Increment the vertex count by the number of verticies we just looped over.
iBVertex += iMeshVerts;
// Copy indicies.
int iMeshFaces = (int)so.pMesh.FaceCount;
for (int iFace = 0; iFace < iMeshFaces; ++iFace)
{
uint[] tIndices = so.pMesh.Faces[iFace].Indices;
//tIndex[iBIndex++] = Convert.ToInt16(tIndices[0] + (iAttribute == 0 ? 0 : prevVertCount));
//tIndex[iBIndex++] = Convert.ToInt16(tIndices[1] + (iAttribute == 0 ? 0 : prevVertCount));
//tIndex[iBIndex++] = Convert.ToInt16(tIndices[2] + (iAttribute == 0 ? 0 : prevVertCount));
tIndex[iBIndex++] = Convert.ToUInt32(tIndices[0] + (iAttribute == 0 ? 0 : prevVertCount));
tIndex[iBIndex++] = Convert.ToUInt32(tIndices[1] + (iAttribute == 0 ? 0 : prevVertCount));
tIndex[iBIndex++] = Convert.ToUInt32(tIndices[2] + (iAttribute == 0 ? 0 : prevVertCount));
}
// Increment the face count by the number of faces we just looped over.
prevVertCount += iMeshVerts;
pAttrib.FaceCount = iMeshFaces;
pAttrib.VertexCount = iMeshVerts;
tAttibutes[iAttribute] = pAttrib;
iAttribute++;
}
Mesh3D gm = new Mesh3D();
Mesh output = new Mesh(device, ieLayout, ieLayout[0].SemanticName, iVBufferSize, iIBufferSize / 3, MeshFlags.Has32BitIndices);
output.SetAttributeTable(tAttibutes);
DataStream verts = new DataStream(iVBufferSize * Marshal.SizeOf(typeof(MeshInputElements10.sNormalMesh)), true, true);
//DataStream indicies = new DataStream(iIBufferSize * Marshal.SizeOf(typeof(short)), true, true);
DataStream indicies = new DataStream(iIBufferSize * Marshal.SizeOf(typeof(uint)), true, true);
verts.WriteRange(tVertex);
indicies.WriteRange(tIndex);
verts.Position = 0;
indicies.Position = 0;
output.SetVertexData(0, verts);
output.SetIndexData(indicies, iIBufferSize);
output.Commit();
verts.Dispose();
indicies.Dispose();
gm.attrTable = tAttibutes;
gm.meshObj = output;
gm.NumAttributes = meshArr.Count;
gm.materials = tTextures;
gm.nodes = nodes;
if (pScene.HasAnimations)
{
gm.animations = new List <Mesh3DAnimation>();
foreach (Assimp.Animation a in pScene.Animations)
{
Mesh3DAnimation anim = new Mesh3DAnimation();
anim.animName = a.Name;
anim.duration = a.DurationInTicks;
anim.channels = new AnimationChannel[a.NodeAnimationChannelCount];
int x = 0;
foreach (Assimp.NodeAnimationChannel c in a.NodeAnimationChannels)
{
if (c == null)
{
continue;
}
AnimationChannel ac = new AnimationChannel();
ac.nodeName = c.NodeName;
ac.animKeys = new AnimationKey[c.RotationKeyCount];
for (int i = 0; i < c.PositionKeys.Length; i++)
{
double time = 0;
SceneObject sObj = meshArr[0];
foreach (SceneObject so in meshArr)
{
if (so.nodeName == c.NodeName)
{
sObj = so;
break;
}
}
time = c.PositionKeys[i].Time;
Matrix mat = toDXMat(sObj.transform);
Vector3 rotationCenter = new Vector3(mat.M41, mat.M42, mat.M43);
mat.Invert();
Vector3 pos = Vector3.TransformCoordinate(toDX(c.PositionKeys[i].Value), mat);
Matrix matAnim = Matrix.Transformation(Vector3.Zero, Quaternion.Identity, new Vector3(1, 1, 1), rotationCenter, toDX(c.RotationKeys[i].Value), pos);
AnimationKey ak = new AnimationKey();
ak.animMat = matAnim;
ak.time = time;
ac.animKeys[i] = ak;
}
anim.channels[x++] = ac;
}
gm.animations.Add(anim);
}
}
return(gm);
}