public static Mesh3[] Load(string fileName, Vector3 multiplier)
{
List <ObjMesh> meshes = new List <ObjMesh>();
objVertices = new List <Vector3>();
objUVs = new List <Vector2>();
objNormals = new List <Vector3>();
ObjMesh currentMesh = null;
string[] lines = File.ReadAllLines(fileName);
foreach (string line in lines)
{
string[] items = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (items.Length == 0)
{
continue;
}
if (items[0] == "o" || items[0] == "g")
{
currentMesh = new ObjMesh(multiplier);
meshes.Add(currentMesh);
}
else if (items[0] == "v")
{
if (currentMesh == null)
{
currentMesh = new ObjMesh(multiplier);
meshes.Add(currentMesh);
}
Vector3 v = new Vector3(ParseFloat(items[1]), ParseFloat(items[2]), ParseFloat(items[3]));
objVertices.Add(v);
}
else if (items[0] == "vt")
{
Vector2 vt = new Vector2(ParseFloat(items[1]), ParseFloat(items[2]));
objUVs.Add(vt);
}
else if (items[0] == "vn")
{
Vector3 v = new Vector3(ParseFloat(items[1]), ParseFloat(items[2]), ParseFloat(items[3]));
objNormals.Add(v);
}
else if (items[0] == "f")
{
currentMesh.AddFace(items);
}
}
Mesh3[] finalMeshes = new Mesh3[meshes.Count];
for (int i = 0; i < finalMeshes.Length; i++)
{
finalMeshes[i] = new Mesh3();
finalMeshes[i].v = meshes[i].vList.ToArray();
finalMeshes[i].uv = meshes[i].vtList.ToArray();
finalMeshes[i].vn = meshes[i].vnList.ToArray();
finalMeshes[i].Update();
// check if normals are available
if (meshes[i].vnList.Count == 0)
{
finalMeshes[i].RegenerateNormals();
}
// check for invalid UVs
if (meshes[i].vtList.Count == 0)
{
// this will trigger uv regeneration
finalMeshes[i].uv = null;
}
finalMeshes[i].UpdateNormals();
}
return(finalMeshes);
}
private static Mesh3 FbxToMesh3(Scene scene, Assimp.Mesh mesh, Vector3 multiplier)
{
FbxMeshData fbxData = new FbxMeshData(multiplier);
if (mesh.HasBones)
{
foreach (Bone bone in mesh.Bones)
{
foreach (VertexWeight vertexWeight in bone.VertexWeights)
{
if (!fbxData.bonesInfluences.ContainsKey(vertexWeight.VertexID))
{
fbxData.bonesInfluences[vertexWeight.VertexID] = new List <FbxBoneInfluence>();
}
fbxData.bonesInfluences[vertexWeight.VertexID].Add(new FbxBoneInfluence()
{
bone = bone, weight = vertexWeight.Weight
});
}
}
}
foreach (Face face in mesh.Faces)
{
if (face.IndexCount == 3 || face.IndexCount == 4)
{
for (int i = 0; i < 3; i++)
{
FbxIndexToFloatList(i, mesh, face, fbxData);
}
// manage quads
if (face.IndexCount == 4)
{
FbxIndexToFloatList(3, mesh, face, fbxData);
FbxIndexToFloatList(0, mesh, face, fbxData);
FbxIndexToFloatList(2, mesh, face, fbxData);
}
}
else
{
throw new FbxLoader.InvalidPolygon();
}
}
Aiv.Fast3D.Mesh3 mesh3 = new Mesh3();
mesh3.v = fbxData.vList.ToArray();
mesh3.uv = fbxData.vtList.ToArray();
mesh3.vn = fbxData.vnList.ToArray();
if (fbxData.bonesMappingList.Count > 0)
{
mesh3.bonesMapping = fbxData.bonesMappingList.ToArray();
}
if (fbxData.bonesWeightList.Count > 0)
{
mesh3.bonesWeight = fbxData.bonesWeightList.ToArray();
}
mesh3.Update();
mesh3.UpdateNormals();
mesh3.UpdateBones();
if (mesh.HasBones)
{
for (int i = 0; i < mesh.BoneCount; i++)
{
Mesh3.Bone newBone = mesh3.AddBone(i, mesh.Bones[i].Name);
//Assimp.Matrix4x4 rootMatrix = scene.RootNode.Transform;
//rootMatrix.Inverse();
//Assimp.Matrix4x4 nodeMatrix = scene.RootNode.FindNode(mesh.Bones[i].Name).Transform;
//Assimp.Matrix4x4 m = rootMatrix * nodeMatrix * mesh.Bones[i].OffsetMatrix;
//Assimp.Matrix4x4 m = rootMatrix;
//m.Inverse();
//newBone.rootMatrix = new OpenTK.Matrix4(m.A1, m.A2, m.A3, m.A4, m.B1, m.B2, m.B3, m.B4, m.C1, m.C2, m.C3, m.C4, m.D1, m.D2, m.D3, m.D4);
//newBone.rootMatrix = new OpenTK.Matrix4(m.A1, m.B1, m.C1, m.D1, m.A2, m.B2, m.C2, m.D2, m.A3, m.B3, m.C3, m.D3, m.A4, m.B4, m.C4, m.D4);
//m = nodeMatrix;
//m = mesh.Bones[i].OffsetMatrix * nodeMatrix;
Assimp.Matrix4x4 m = mesh.Bones[i].OffsetMatrix;
//m.Inverse();
//newBone.BaseMatrix = new OpenTK.Matrix4(m.A1, m.A2, m.A3, m.A4, m.B1, m.B2, m.B3, m.B4, m.C1, m.C2, m.C3, m.C4, m.D1, m.D2, m.D3, m.D4);
newBone.BaseMatrix = new OpenTK.Matrix4(m.A1, m.B1, m.C1, m.D1, m.A2, m.B2, m.C2, m.D2, m.A3, m.B3, m.C3, m.D3, m.A4, m.B4, m.C4, m.D4);
}
Console.WriteLine("Bones count = " + mesh3.BonesCount);
// fixup bones
FixBoneParenting(scene.RootNode, mesh3, null);
}
return(mesh3);
}
