public models Stripify(string filePath)
{
var stgpv = new Model();
var textures = new MikuMikuLibrary.Textures.TextureSet();
var texdb = new TextureDatabase();
using (var farcArchive = BinaryFile.Load <FarcArchive>(filePath))
{
using (var entryStream = farcArchive.Open(farcArchive.Entries.Where(c => c.Contains("txi")).First(), EntryStreamMode.MemoryStream))
texdb.Load(entryStream);
using (var entryStream = farcArchive.Open(farcArchive.Entries.Where(c => c.Contains("txd")).First(), EntryStreamMode.MemoryStream))
textures.Load(entryStream);
using (var entryStream = farcArchive.Open(farcArchive.Entries.First(), EntryStreamMode.MemoryStream))
stgpv.Load(entryStream, textures, texdb);
}
foreach (var meshes in stgpv.Meshes)
{
foreach (var submeshes in meshes.SubMeshes)
{
foreach (var indexTable in submeshes.IndexTables)
{
ushort[] triangleStrip = Stripifier.Stripify(indexTable.Indices);
if (triangleStrip != null)
{
indexTable.PrimitiveType = PrimitiveType.TriangleStrip;
indexTable.Indices = triangleStrip;
}
}
}
}
var le_model = new models();
le_model.model = stgpv;
le_model.fileName = filePath;
Logs.WriteLine("Stripified " + Path.GetFileName(filePath));
return(le_model);
}
private static Mesh ConvertMeshFromAiNode(Ai.Node aiNode, Ai.Scene aiScene, Matrix4x4 parentTransformation,
Dictionary <string, int> boneMap, List <BoneInfo> bones, Dictionary <string, int> materialMap,
List <Material> materials, string texturesDirectory, TextureSet textureSet)
{
if (!aiNode.HasMeshes)
{
return(null);
}
// Select meshes that have triangles
var aiMeshes = aiNode.MeshIndices.Select(x => aiScene.Meshes[x]).Where(x =>
x.PrimitiveType == Ai.PrimitiveType.Triangle && x.Faces.Any(y => y.IndexCount == 3)).ToList();
if (aiMeshes.Count == 0)
{
return(null);
}
var transformation = parentTransformation * aiNode.Transform.ToNumericsTransposed();
int vertexCount = aiMeshes.Sum(x => x.VertexCount);
var mesh = new Mesh
{
Name = aiNode.Name,
Vertices = new Vector3[vertexCount],
};
int vertexOffset = 0;
foreach (var aiMesh in aiMeshes)
{
for (int i = 0; i < aiMesh.Vertices.Count; i++)
{
mesh.Vertices[vertexOffset + i] =
Vector3.Transform(aiMesh.Vertices[i].ToNumerics(), transformation);
}
if (aiMesh.HasNormals)
{
if (mesh.Normals == null)
{
mesh.Normals = new Vector3[vertexCount];
}
for (int i = 0; i < aiMesh.Normals.Count; i++)
{
mesh.Normals[vertexOffset + i] =
Vector3.Normalize(Vector3.TransformNormal(aiMesh.Normals[i].ToNumerics(),
transformation));
}
}
if (aiMesh.HasTangentBasis)
{
if (mesh.Tangents == null)
{
mesh.Tangents = new Vector4[vertexCount];
}
for (int i = 0; i < aiMesh.Tangents.Count; i++)
{
Vector3 tangent =
Vector3.Normalize(Vector3.TransformNormal(aiMesh.Tangents[i].ToNumerics(),
transformation));
Vector3 bitangent =
Vector3.Normalize(Vector3.TransformNormal(aiMesh.BiTangents[i].ToNumerics(),
transformation));
int direction = Math.Sign(Vector3.Dot(bitangent,
Vector3.Normalize(Vector3.Cross(mesh.Normals[vertexOffset + i], tangent))));
mesh.Tangents[vertexOffset + i] = new Vector4(tangent, direction);
}
}
if (aiMesh.HasTextureCoords(0))
{
if (mesh.UVChannel1 == null)
{
mesh.UVChannel1 = new Vector2[vertexCount];
}
for (int i = 0; i < aiMesh.TextureCoordinateChannels[0].Count; i++)
{
mesh.UVChannel1[vertexOffset + i] = new Vector2(aiMesh.TextureCoordinateChannels[0][i].X,
1f - aiMesh.TextureCoordinateChannels[0][i].Y);
}
}
if (aiMesh.HasTextureCoords(1))
{
if (mesh.UVChannel2 == null)
{
mesh.UVChannel2 = new Vector2[vertexCount];
}
for (int i = 0; i < aiMesh.TextureCoordinateChannels[1].Count; i++)
{
mesh.UVChannel2[vertexOffset + i] = new Vector2(aiMesh.TextureCoordinateChannels[1][i].X,
1f - aiMesh.TextureCoordinateChannels[1][i].Y);
}
}
if (aiMesh.HasVertexColors(0))
{
if (mesh.Colors == null)
{
mesh.Colors = new Color[vertexCount];
for (int i = 0; i < mesh.Colors.Length; i++)
{
mesh.Colors[i] = Color.White;
}
}
for (int i = 0; i < aiMesh.VertexColorChannels[0].Count; i++)
{
mesh.Colors[vertexOffset + i] = new Color(aiMesh.VertexColorChannels[0][i].R,
aiMesh.VertexColorChannels[0][i].G, aiMesh.VertexColorChannels[0][i].B,
aiMesh.VertexColorChannels[0][i].A);
}
}
var subMesh = new SubMesh();
if (aiMesh.HasBones)
{
if (mesh.BoneWeights == null)
{
mesh.BoneWeights = new BoneWeight[vertexCount];
for (int i = 0; i < mesh.BoneWeights.Length; i++)
{
mesh.BoneWeights[i] = BoneWeight.Empty;
}
}
subMesh.BoneIndices = new ushort[aiMesh.Bones.Count];
for (int i = 0; i < aiMesh.Bones.Count; i++)
{
var aiBone = aiMesh.Bones[i];
if (!boneMap.TryGetValue(aiBone.Name, out int boneIndex))
{
boneIndex = bones.Count;
boneMap[aiBone.Name] = boneIndex;
bones.Add(ConvertBoneFromAiBone(aiBone, aiScene, boneIndex));
}
subMesh.BoneIndices[i] = ( ushort )boneIndex;
foreach (var aiWeight in aiBone.VertexWeights)
{
mesh.BoneWeights[vertexOffset + aiWeight.VertexID].AddWeight(i, aiWeight.Weight);
}
}
}
subMesh.Indices = aiMesh.Faces.Where(x => x.IndexCount == 3).SelectMany(x => x.Indices)
.Select(x => ( ushort )(vertexOffset + x)).ToArray();
ushort[] triangleStrip = Stripifier.Stripify(subMesh.Indices);
if (triangleStrip != null)
{
subMesh.PrimitiveType = PrimitiveType.TriangleStrip;
subMesh.Indices = triangleStrip;
}
var aiMaterial = aiScene.Materials[aiMesh.MaterialIndex];
if (!materialMap.TryGetValue(aiMaterial.Name, out int materialIndex))
{
materialIndex = materials.Count;
materialMap[aiMaterial.Name] = materialIndex;
materials.Add(ConvertMaterialFromAiMaterial(aiMaterial, texturesDirectory, textureSet));
}
subMesh.MaterialIndex = materialIndex;
var axisAlignedBoundingBox =
new AxisAlignedBoundingBox(mesh.Vertices.Skip(vertexOffset).Take(aiMesh.Vertices.Count));
subMesh.BoundingSphere = axisAlignedBoundingBox.ToBoundingSphere();
subMesh.BoundingBox = axisAlignedBoundingBox.ToBoundingBox();
mesh.SubMeshes.Add(subMesh);
vertexOffset += aiMesh.VertexCount;
}
mesh.BoundingSphere = new AxisAlignedBoundingBox(mesh.Vertices).ToBoundingSphere();
return(mesh);
}
protected override void Initialize()
{
RegisterExportHandler <Model>(filePath =>
{
var configuration = ConfigurationList.Instance.CurrentConfiguration;
var objectDatabase = configuration?.ObjectDatabase;
var textureDatabase = configuration?.TextureDatabase;
var boneDatabase = configuration?.BoneDatabase;
Data.Save(filePath, objectDatabase, textureDatabase, boneDatabase);
});
RegisterExportHandler <Scene>(filePath => Exporter.ConvertAiSceneFromModel(Data, filePath));
RegisterReplaceHandler <Model>(filePath =>
{
var configuration = ConfigurationList.Instance.CurrentConfiguration;
var objectDatabase = configuration?.ObjectDatabase;
var textureDatabase = configuration?.TextureDatabase;
var model = new Model();
model.Load(filePath, objectDatabase, textureDatabase);
return(model);
});
RegisterReplaceHandler <Scene>(filePath =>
{
if (Data.Meshes.Count > 1)
{
return(Importer.ConvertModelFromAiScene(filePath));
}
return(Importer.ConvertModelFromAiSceneWithSingleMesh(filePath));
});
RegisterCustomHandler("Rename all shaders to...", () =>
{
using (var inputDialog = new InputDialog {
WindowTitle = "Rename all shaders", Input = "BLINN"
})
{
if (inputDialog.ShowDialog() != DialogResult.OK)
{
return;
}
foreach (var material in Data.Meshes.SelectMany(x => x.Materials))
{
material.Shader = inputDialog.Input;
}
}
IsDirty = true;
});
RegisterCustomHandler("Convert triangles to triangle strips", () =>
{
foreach (var indexTable in Data.Meshes.SelectMany(x => x.SubMeshes).SelectMany(x => x.IndexTables))
{
if (indexTable.PrimitiveType == PrimitiveType.Triangles)
{
ushort[] triangleStrip = Stripifier.Stripify(indexTable.Indices);
if (triangleStrip != null)
{
indexTable.PrimitiveType = PrimitiveType.TriangleStrip;
indexTable.Indices = triangleStrip;
}
}
}
IsDirty = true;
});
RegisterCustomHandler("Combine all meshes into one", () =>
{
if (Data.Meshes.Count <= 1)
{
return;
}
var combinedMesh = new Mesh {
Name = "Combined mesh"
};
var indexMap = new Dictionary <int, int>();
foreach (var mesh in Data.Meshes)
{
if (mesh.Skin != null)
{
if (combinedMesh.Skin == null)
{
combinedMesh.Skin = new Skin();
combinedMesh.Skin.Bones.AddRange(mesh.Skin.Bones);
}
else
{
for (int i = 0; i < mesh.Skin.Bones.Count; i++)
{
var bone = mesh.Skin.Bones[i];
var boneIndex = combinedMesh.Skin.Bones
.FindIndex(x => x.Name.Equals(bone.Name, StringComparison.OrdinalIgnoreCase));
if (boneIndex == -1)
{
indexMap[i] = combinedMesh.Skin.Bones.Count;
combinedMesh.Skin.Bones.Add(bone);
}
else
{
indexMap[i] = boneIndex;
}
}
foreach (var indexTable in mesh.SubMeshes.SelectMany(x => x.IndexTables))
{
if (indexTable.BoneIndices?.Length >= 1)
{
for (int i = 0; i < indexTable.BoneIndices.Length; i++)
{
indexTable.BoneIndices[i] = ( ushort )indexMap[indexTable.BoneIndices[i]];
}
}
}
}
}
foreach (var indexTable in mesh.SubMeshes.SelectMany(x => x.IndexTables))
{
indexTable.MaterialIndex += combinedMesh.Materials.Count;
}
combinedMesh.SubMeshes.AddRange(mesh.SubMeshes);
combinedMesh.Materials.AddRange(mesh.Materials);
}
Data.Meshes.Clear();
Data.Meshes.Add(combinedMesh);
if (IsPopulated)
{
IsPopulated = false;
Populate();
}
IsDirty = true;
});
base.Initialize();
}
/// <summary>
/// Generates strips from the given input indices.
/// </summary>
/// <param name="indices">Input index list, the indices you would use to render.</param>
/// <param name="primitiveGroups">Array of optimized/stripified PrimitiveGroups</param>
/// <param name="validateEnabled">Whether to validate the output or not.</param>
/// <returns>A boolean indicating whether the operation completed successfully.</returns>
public bool GenerateStrips(ushort[] indices, out PrimitiveGroup[] primitiveGroups, bool validateEnabled = false)
{
var numGroups = 0;
//put data in format that the stripifier likes
var tempIndices = new List <ushort>(indices.Length);
ushort maxIndex = 0;
ushort minIndex = 0xFFFF;
for (var i = 0; i < indices.Length; i++)
{
tempIndices.Add(indices[i]);
if (indices[i] > maxIndex)
{
maxIndex = indices[i];
}
if (indices[i] < minIndex)
{
minIndex = indices[i];
}
}
var tempStrips = new List <StripInfo>();
var tempFaces = new List <FaceInfo>();
var stripifier = new Stripifier();
//do actual stripification
stripifier.Stripify(tempIndices, CacheSize, MinStripSize, maxIndex, tempStrips, tempFaces);
//stitch strips together
var stripIndices = new List <int>();
uint numSeparateStrips = 0;
if (ListsOnly)
{
//if we're outputting only lists, we're done
numGroups = 1;
primitiveGroups = new PrimitiveGroup[numGroups];
var primGroupArray = primitiveGroups;
//count the total number of indices
uint numIndices = 0;
for (var i = 0; i < tempStrips.Count; i++)
{
numIndices += ( uint )(tempStrips[i].Faces.Count * 3);
}
//add in the list
numIndices += ( uint )(tempFaces.Count * 3);
primGroupArray[0] = new PrimitiveGroup(PrimitiveType.TriangleList, new ushort[numIndices]);
//do strips
uint indexCtr = 0;
for (var i = 0; i < tempStrips.Count; i++)
{
for (var j = 0; j < tempStrips[i].Faces.Count; j++)
{
//degenerates are of no use with lists
if (!Stripifier.IsDegenerate(tempStrips[i].Faces[j]))
{
primGroupArray[0].Indices[indexCtr++] = ( ushort )tempStrips[i].Faces[j].V0;
primGroupArray[0].Indices[indexCtr++] = ( ushort )tempStrips[i].Faces[j].V1;
primGroupArray[0].Indices[indexCtr++] = ( ushort )tempStrips[i].Faces[j].V2;
}
else
{
//we've removed a tri, reduce the number of indices
var resizedIndices = primGroupArray[0].Indices;
Array.Resize(ref resizedIndices, primGroupArray[0].Indices.Length - 3);
primGroupArray[0].Indices = resizedIndices;
}
}
}
//do lists
for (var i = 0; i < tempFaces.Count; i++)
{
primGroupArray[0].Indices[indexCtr++] = ( ushort )tempFaces[i].V0;
primGroupArray[0].Indices[indexCtr++] = ( ushort )tempFaces[i].V1;
primGroupArray[0].Indices[indexCtr++] = ( ushort )tempFaces[i].V2;
}
}
else
{
stripifier.CreateStrips(tempStrips, stripIndices, StitchStrips, ref numSeparateStrips, UseRestart, ( uint )RestartValue);
//if we're stitching strips together, we better get back only one strip from CreateStrips()
Debug.Assert(StitchStrips && numSeparateStrips == 1 || !StitchStrips);
//convert to output format
numGroups = ( ushort )numSeparateStrips; //for the strips
if (tempFaces.Count != 0)
{
numGroups++; //we've got a list as well, increment
}
primitiveGroups = new PrimitiveGroup[numGroups];
var primGroupArray = primitiveGroups;
//first, the strips
var startingLoc = 0;
for (var stripCtr = 0; stripCtr < numSeparateStrips; stripCtr++)
{
var stripLength = 0;
if (!StitchStrips)
{
//if we've got multiple strips, we need to figure out the correct length
int i;
for (i = startingLoc; i < stripIndices.Count; i++)
{
if (stripIndices[i] == -1)
{
break;
}
}
stripLength = i - startingLoc;
}
else
{
stripLength = stripIndices.Count;
}
primGroupArray[stripCtr] = new PrimitiveGroup(PrimitiveType.TriangleStrip, new ushort[stripLength]);
var indexCtr = 0;
for (int i = startingLoc; i < stripLength + startingLoc; i++)
{
primGroupArray[stripCtr].Indices[indexCtr++] = ( ushort )stripIndices[i];
}
//we add 1 to account for the -1 separating strips
//this doesn't break the stitched case since we'll exit the loop
startingLoc += stripLength + 1;
}
//next, the list
if (tempFaces.Count != 0)
{
int faceGroupLoc = numGroups - 1; //the face group is the last one
primGroupArray[faceGroupLoc] = new PrimitiveGroup(PrimitiveType.TriangleList, new ushort[tempFaces.Count * 3]);
var indexCtr = 0;
for (var i = 0; i < tempFaces.Count; i++)
{
primGroupArray[faceGroupLoc].Indices[indexCtr++] = ( ushort )tempFaces[i].V0;
primGroupArray[faceGroupLoc].Indices[indexCtr++] = ( ushort )tempFaces[i].V1;
primGroupArray[faceGroupLoc].Indices[indexCtr++] = ( ushort )tempFaces[i].V2;
}
}
}
//validate generated data against input
if (validateEnabled)
{
var numbins = 100;
var inBins = new List <FaceInfo> [numbins];
for (var i = 0; i < inBins.Length; ++i)
{
inBins[i] = new List <FaceInfo>();
}
//hash input indices on first index
for (var i = 0; i < indices.Length; i += 3)
{
var faceInfo = new FaceInfo(indices[i], indices[i + 1], indices[i + 2]);
inBins[indices[i] % numbins].Add(faceInfo);
}
for (var i = 0; i < numGroups; ++i)
{
switch (primitiveGroups[i].Type)
{
case PrimitiveType.TriangleList:
{
for (var j = 0; j < primitiveGroups[i].Indices.Length; j += 3)
{
ushort v0 = primitiveGroups[i].Indices[j];
ushort v1 = primitiveGroups[i].Indices[j + 1];
ushort v2 = primitiveGroups[i].Indices[j + 2];
//ignore degenerates
if (Stripifier.IsDegenerate(v0, v1, v2))
{
continue;
}
if (!TestTriangle(v0, v1, v2, inBins, numbins))
{
Cleanup(tempStrips, tempFaces);
return(false);
}
}
break;
}
case PrimitiveType.TriangleStrip:
{
var flip = false;
for (var j = 2; j < primitiveGroups[i].Indices.Length; ++j)
{
ushort v0 = primitiveGroups[i].Indices[j - 2];
ushort v1 = primitiveGroups[i].Indices[j - 1];
ushort v2 = primitiveGroups[i].Indices[j];
if (flip)
{
//swap v1 and v2
ushort swap = v1;
v1 = v2;
v2 = swap;
}
//ignore degenerates
if (Stripifier.IsDegenerate(v0, v1, v2))
{
flip = !flip;
continue;
}
if (!TestTriangle(v0, v1, v2, inBins, numbins))
{
Cleanup(tempStrips, tempFaces);
return(false);
}
flip = !flip;
}
break;
}
case PrimitiveType.TriangleFan:
default:
break;
}
}
}
//clean up everything
Cleanup(tempStrips, tempFaces);
return(true);
}