public ImportedFLVER2Model ImportFromAssimpScene(Scene scene, FLVER2ImportSettings settings)
{
LoadMaterialInfoBankForGame(settings.Game);
var result = new ImportedFLVER2Model();
var flver = result.Flver = new FLVER2();
flver.Header.BigEndian = settings.FlverHeader.BigEndian;
flver.Header.BoundingBoxMax = new NVector3(float.MinValue);
flver.Header.BoundingBoxMin = new NVector3(float.MaxValue);
flver.Header.Unicode = settings.FlverHeader.Unicode;
flver.Header.Unk4A = settings.FlverHeader.Unk4A;
flver.Header.Unk4C = settings.FlverHeader.Unk4C;
flver.Header.Unk5C = settings.FlverHeader.Unk5C;
flver.Header.Unk5D = settings.FlverHeader.Unk5D;
flver.Header.Unk68 = settings.FlverHeader.Unk68;
flver.Header.Version = settings.FlverHeader.Version;
var flverSceneMatrix = NMatrix.CreateScale(NVector3.One * settings.SceneScale);
if (settings.ConvertFromZUp)
{
flverSceneMatrix *= SapMath.ZUpToYUpNMatrix;
}
//flverSceneMatrix *= NMatrix.CreateRotationY(SapMath.Pi);
flverSceneMatrix *= settings.SceneCorrectMatrix;
flverSceneMatrix *= NMatrix.CreateScale(1, 1, -1);
var coordMat = AssimpUtilities.GetSceneCoordSystemMatrix(scene);
scene.RootNode.Transform *= coordMat;
var skeletonRootNode = AssimpUtilities.FindRootNode(scene, settings.RootNodeName, out Matrix4x4 skeletonRootNodeMatrix);
var metaskeleton = FLVERImportHelpers.GenerateFlverMetaskeletonFromRootNode(
skeletonRootNode, skeletonRootNodeMatrix, settings.SceneScale);
flver.Bones = metaskeleton.Bones;
flver.Dummies = metaskeleton.DummyPoly;
foreach (var b in flver.Bones)
{
// Mark as dummied-out bone until iterating over them later and seeing which are weighted to meshes.
if (b.ParentIndex == -1)
{
b.Unk3C = 1;
}
}
var usesIndirectBones = flver.Header.Version <= 0x20010;
if (settings.SkeletonTransformsOverride != null)
{
flver.Bones = settings.SkeletonTransformsOverride;
}
//var flverMaterialList = new List<FLVER2.Material>();
foreach (var material in scene.Materials)
{
string[] materialNameSplit = material.Name.Split('|');
string mtd = materialNameSplit.Length > 1 ? materialNameSplit[1].Trim() + ".mtd" : null;
// If MTD doesn't exist, use original
mtd = MaterialInfoBankPerGame[settings.Game].FallbackToDefaultMtdIfNecessary(mtd, Logger);
//ErrorTODO: materialNameSplit should be 2 items long.
var flverMaterial = new FLVER2.Material(materialNameSplit[0].Trim(), mtd, 0);
void AddTextureSlot(TextureSlot slot, string ingameSlot)
{
flverMaterial.Textures.Add(new FLVER2.Texture(type: ingameSlot,
path: slot.FilePath != null ? Path.GetFullPath(slot.FilePath) : "",
scale: System.Numerics.Vector2.One,
1, true, 0, 0, 0));
string texName = Path.GetFileNameWithoutExtension(slot.FilePath);
byte[] texData = scene.GetEmbeddedTexture(slot.FilePath)?.CompressedData;
if (texData != null)
{
var ddsFormat = TPFTextureFormatFinder.GetTpfFormatFromDdsBytes(texData);
result.Textures.Add(new TPF.Texture(texName, format: ddsFormat, flags1: 0, bytes: texData));
}
}
var materialDefinition = MaterialInfoBankPerGame[settings.Game].MaterialDefs[mtd.ToLower()];
var texChanDefs = materialDefinition.TextureChannels;
foreach (var kvp in texChanDefs)
{
if (kvp.Key.Index == 0)
{
if (kvp.Key.Semantic == TextureChannelSemantic.Diffuse)
{
AddTextureSlot(material.TextureDiffuse, kvp.Value);
}
else if (kvp.Key.Semantic == TextureChannelSemantic.Specular)
{
AddTextureSlot(material.TextureSpecular, kvp.Value);
}
else if (kvp.Key.Semantic == TextureChannelSemantic.Normals)
{
AddTextureSlot(material.TextureNormal, kvp.Value);
}
else if (kvp.Key.Semantic == TextureChannelSemantic.Emissive)
{
AddTextureSlot(material.TextureEmissive, kvp.Value);
}
else
{
flverMaterial.Textures.Add(new FLVER2.Texture(type: kvp.Value,
path: string.Empty,
scale: System.Numerics.Vector2.One,
0, false, 0, 0, 0));
}
}
}
if (materialDefinition.GXItems.Count > 0)
{
flverMaterial.GXIndex = flver.GXLists.Count;
var gxList = new FLVER2.GXList();
for (int i = 0; i < materialDefinition.GXItems.Count; i++)
{
var gxid = materialDefinition.GXItems[i].GXID;
var unk04 = materialDefinition.GXItems[i].Unk04;
byte[] data = MaterialInfoBankPerGame[settings.Game].DefaultGXItemDataExamples[mtd][i];
gxList.Add(new FLVER2.GXItem(gxid, unk04, data));
}
flver.GXLists.Add(gxList);
}
flver.Materials.Add(flverMaterial);
//flverMaterialList.Add(flverMaterial);
}
//var properBoneParentRegistry = new Dictionary<Bone, string>();
//foreach (var mesh in scene.Meshes)
//{
// foreach (var b in mesh.Bones)
// {
// bool alreadyRegistered = false;
// foreach (var bone in properBoneParentRegistry.Keys)
// {
// if (bone.Name == b.Name)
// {
// alreadyRegistered = true;
// break;
// }
// }
// if (alreadyRegistered)
// continue;
// mesh.
// properBoneParentRegistry.Add(b, b.)
// }
//}
if (settings.BoneNameRemapper != null)
{
foreach (var bn in settings.BoneNameRemapper)
{
var bone = flver.Bones.FindIndex(b => b.Name == bn.Key);
if (bone >= 0)
{
flver.Bones[bone].Name = bn.Value;
}
}
}
foreach (var mesh in scene.Meshes)
{
var flverMesh = new FLVER2.Mesh();
flverMesh.BoundingBox = new FLVER2.Mesh.BoundingBoxes();
//TODO: ACTUALLY READ FROM THINGS
flverMesh.Dynamic = 1;
// Register mesh transform bone:
//flverMesh.DefaultBoneIndex = flver.Bones.Count;
//int flverLastRootBoneIndex = flver.Bones.FindLastIndex(b => b.ParentIndex == -1);
//// Register this new bone as a sibling.
//if (flverLastRootBoneIndex >= 0)
// flver.Bones[flverLastRootBoneIndex].NextSiblingIndex = (short)flverMesh.DefaultBoneIndex;
//flver.Bones.Add(new FLVER.Bone()
//{
// Name = mesh.Name,
// Translation = NVector3.Zero,
// Rotation = NVector3.Zero,
// Scale = NVector3.One,
// BoundingBoxMin = NVector3.One * -0.05f,
// BoundingBoxMax = NVector3.One * 0.05f,
// // Cross-register sibling from above.
// PreviousSiblingIndex = (short)flverLastRootBoneIndex,
// NextSiblingIndex = -1,
// ParentIndex = -1,
// ChildIndex = -1,
// Unk3C = 1,
//});
int meshUVCount = 0;
for (int i = 0; i < mesh.UVComponentCount.Length; i++)
{
if (mesh.UVComponentCount[i] > 0)
{
meshUVCount++;
}
}
if (mesh.PrimitiveType != PrimitiveType.Triangle)
{
Console.WriteLine();
}
var flverFaceSet = new FLVER2.FaceSet();
//flverFaceSet.TriangleStrip = true;
// Handle vertex buffers / layouts:
flverMesh.MaterialIndex = mesh.MaterialIndex;
//var newMat = flverMaterialList[mesh.MaterialIndex];
//var indexOfNewMat = flver.Materials.IndexOf(newMat);
//if (indexOfNewMat >= 0)
//{
// flverMesh.MaterialIndex = indexOfNewMat;
//}
//else
//{
// flverMesh.MaterialIndex = flver.Materials.Count;
// flver.Materials.Add(newMat);
//}
var flverMaterial = flver.Materials[flverMesh.MaterialIndex];
var matDefinition = MaterialInfoBankPerGame[settings.Game].MaterialDefs[flverMaterial.MTD.ToLower()];
var defaultBufferDeclaration = matDefinition.AcceptableVertexBufferDeclarations[0];
Dictionary <FLVER.LayoutSemantic, int> requiredVertexBufferMembers =
new Dictionary <FLVER.LayoutSemantic, int>();
foreach (var buff in defaultBufferDeclaration.Buffers)
{
foreach (var m in buff)
{
if (!requiredVertexBufferMembers.ContainsKey(m.Semantic))
{
requiredVertexBufferMembers.Add(m.Semantic, 0);
}
requiredVertexBufferMembers[m.Semantic]++;
}
int nextLayoutIndex = flver.BufferLayouts.Count;
flver.BufferLayouts.Add(buff);
var vertBuffer = new FLVER2.VertexBuffer(nextLayoutIndex);
flverMesh.VertexBuffers.Add(vertBuffer);
}
flverMesh.Vertices = new List <FLVER.Vertex>(mesh.VertexCount);
for (int i = 0; i < mesh.VertexCount; i++)
{
var newVert = new FLVER.Vertex(uvCapacity: meshUVCount,
//TODO: Figure out what multiple tangents are used for etc and implement all
// of that into the XML vert layout system stuff etc etc.
tangentCapacity: mesh.HasTangentBasis ? 1 : 0,
colorCapacity: mesh.VertexColorChannelCount);
newVert.Position = NVector3.Transform(mesh.Vertices[i].ToNumerics(), flverSceneMatrix);
flver.Header.UpdateBoundingBox(newVert.Position);
if (flverMesh.BoundingBox != null)
{
flverMesh.UpdateBoundingBox(newVert.Position);
}
newVert.Normal = NVector3.Normalize(NVector3.TransformNormal(mesh.Normals[i].ToNumerics(), flverSceneMatrix));
//TODO: TEST THIS AGAINST OTHER GAMES ETC
//newVert.NormalW = 127;
if (mesh.HasTangentBasis)
{
//ErrorTODO: Throw error if mesh somehow has tangents but not normals.
var tan = mesh.Tangents[i];
var bitanXYZ = mesh.BiTangents[i];
//TODO: Check Bitangent W calculation
var bitanW = Vector3D.Dot(Vector3D.Cross(tan, mesh.Normals[i]), bitanXYZ) >= 0 ? 1 : -1;
var bitanXYZTransformed = NVector3.Normalize(NVector3.TransformNormal(bitanXYZ.ToNumerics(), flverSceneMatrix));
newVert.Tangents.Add(new System.Numerics.Vector4(bitanXYZTransformed, bitanW));
//TODO: CHECK THIS AND SEE WTF IT EVEN IS SUPPOSED TO BE
newVert.Bitangent = new System.Numerics.Vector4(
NVector3.TransformNormal(tan.ToNumerics(), flverSceneMatrix), 0);
}
for (int j = 0; j < meshUVCount; j++)
{
var uv = mesh.TextureCoordinateChannels[j][i];
newVert.UVs.Add(new NVector3(uv.X, 1 - uv.Y, uv.Z));
}
for (int j = 0; j < mesh.VertexColorChannelCount; j++)
{
newVert.Colors.Add(mesh.VertexColorChannels[j][i].ToFlverVertexColor());
}
for (int j = 0; j < 4; j++)
{
newVert.BoneIndices[j] = -1;
}
newVert.EnsureLayoutMembers(requiredVertexBufferMembers);
flverMesh.Vertices.Add(newVert);
}
if (usesIndirectBones)
{
var bonesInMesh = mesh.Bones.OrderByDescending(mb => mb.VertexWeightCount).ToList();
foreach (var bone in bonesInMesh)
{
var boneIndex = flver.Bones.FindIndex(b => b.Name == bone.Name);
if (!flverMesh.BoneIndices.Contains(boneIndex))
{
flverMesh.BoneIndices.Add(boneIndex);
}
}
flverMesh.BoneIndices = flverMesh.BoneIndices.OrderBy(idx => idx).ToList();
}
foreach (var bone in mesh.Bones)
{
var boneIndex = flver.Bones.FindIndex(b => b.Name == bone.Name);
if (boneIndex == -1)
{
Logger.LogWarning($"No bone with exact name '{bone.Name}' found. Looking for a bone that starts with that name");
boneIndex = flver.Bones.FindIndex(b => b.Name.StartsWith(bone.Name));
}
var boneDoesNotExist = false;
// Mark bone as not-dummied-out since there is geometry skinned to it.
if (boneIndex >= 0 && boneIndex < flver.Bones.Count)
{
flver.Bones[boneIndex].Unk3C = 0;
}
else
{
Logger.LogWarning($"Vertex skinned to bone '{bone.Name}' which does NOT exist in the skeleton.");
boneDoesNotExist = true;
}
int GetNextAvailableBoneSlotOfVert(int vertIndex)
{
if (flverMesh.Vertices[vertIndex].BoneIndices[0] < 0)
{
return(0);
}
else if (flverMesh.Vertices[vertIndex].BoneIndices[1] < 0)
{
return(1);
}
else if (flverMesh.Vertices[vertIndex].BoneIndices[2] < 0)
{
return(2);
}
else if (flverMesh.Vertices[vertIndex].BoneIndices[3] < 0)
{
return(3);
}
else
{
return(-1);
}
}
foreach (var weight in bone.VertexWeights)
{
int boneSlot = GetNextAvailableBoneSlotOfVert(weight.VertexID);
if (boneSlot >= 0)
{
var indexToAssign = usesIndirectBones ? flverMesh.BoneIndices.IndexOf(boneIndex) : boneIndex;
if (indexToAssign == -1)
{
Console.WriteLine("fatcat");
}
flverMesh.Vertices[weight.VertexID].BoneIndices[boneSlot] = boneDoesNotExist ? 0 : indexToAssign;
flverMesh.Vertices[weight.VertexID].BoneWeights[boneSlot] = boneDoesNotExist ? 0 : weight.Weight;
if (!boneDoesNotExist)
{
flver.Bones[boneIndex].UpdateBoundingBox(flver.Bones, flverMesh.Vertices[weight.VertexID].Position);
}
}
}
}
for (int i = 0; i < flverMesh.Vertices.Count; i++)
{
float weightMult = 1 / (
flverMesh.Vertices[i].BoneWeights[0] +
flverMesh.Vertices[i].BoneWeights[1] +
flverMesh.Vertices[i].BoneWeights[2] +
flverMesh.Vertices[i].BoneWeights[3]);
for (int j = 0; j < 4; j++)
{
//flverMesh.Vertices[i].BoneWeights[j] = flverMesh.Vertices[i].BoneWeights[j] * weightMult;
if (flverMesh.Vertices[i].BoneIndices[j] < 0)
{
flverMesh.Vertices[i].BoneIndices[j] = 0;
}
}
//TODO: TEST THIS AGAINST OTHER GAMES ETC
if (!requiredVertexBufferMembers.ContainsKey(FLVER.LayoutSemantic.BoneIndices))
{
flverMesh.Vertices[i].NormalW = flverMesh.Vertices[i].BoneIndices[0];
}
}
//foreach (var face in mesh.Faces)
//{
// //TODO: See if resets need to be added inbetween or anything.
// flverFaceSet.Indices.AddRange(face.Indices);
//}
flverFaceSet.Indices.AddRange(mesh.GetIndices());
flverMesh.FaceSets.Add(flverFaceSet);
GenerateLodAndMotionBlurFacesets(flverMesh);
flver.Meshes.Add(flverMesh);
}
// DEBUGGING
//flver.Bones.RemoveAt(0);
//foreach (var mm in flver.Meshes)
// for (int mbi = 0; mbi < mm.BoneIndices.Count; mbi++)
// mm.BoneIndices[mbi] = mm.BoneIndices[mbi] - 1;
//foreach (var b in flver.Bones)
//{
// if (b.ParentIndex >= 0)
// b.ParentIndex--;
// if (b.ChildIndex >= 0)
// b.ChildIndex--;
// if (b.NextSiblingIndex >= 0)
// b.NextSiblingIndex--;
// if (b.PreviousSiblingIndex >= 0)
// b.PreviousSiblingIndex--;
//}
///////////////////
foreach (var b in flver.Bones)
{
if (settings.SkeletonTransformsOverride != null)
{
var match = settings.SkeletonTransformsOverride.FindIndex(bn => bn.Name == b.Name);
if (match >= 0)
{
b.Translation = settings.SkeletonTransformsOverride[match].Translation;
b.Rotation = settings.SkeletonTransformsOverride[match].Rotation;
b.Scale = settings.SkeletonTransformsOverride[match].Scale;
}
}
if (float.IsInfinity(b.BoundingBoxMin.X) || float.IsInfinity(b.BoundingBoxMin.Y) || float.IsInfinity(b.BoundingBoxMin.Z) ||
float.IsInfinity(b.BoundingBoxMax.X) || float.IsInfinity(b.BoundingBoxMax.Y) || float.IsInfinity(b.BoundingBoxMax.Z))
{
b.BoundingBoxMin = NVector3.One * -0.1f;
b.BoundingBoxMax = NVector3.One * 0.1f;
}
}
return(result);
}