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mirror of synced 2024-11-14 19:17:39 +01:00
Switch-Toolbox/Switch_Toolbox_Library/FileFormats/Assimp/AssimpSaver.cs
KillzXGaming 157ff75b79 Add model cycling if multiple models are active in an editor.
Models can be cycled in the same editor. The active one now gets properly set. You can adjust the combo box to preview multiple models in the scene.
Fixed a bug where some models would project on the top of the screen as duplicates.
2019-06-06 15:40:32 -04:00

608 lines
24 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using Assimp;
using Switch_Toolbox.Library;
using Switch_Toolbox.Library.Animations;
using Switch_Toolbox.Library.Rendering;
using System.Windows.Forms;
using System.Linq;
namespace Switch_Toolbox.Library
{
public class AssimpSaver
{
private List<string> ExtractedTextures = new List<string>();
public List<string> BoneNames = new List<string>();
STProgressBar progressBar;
public void SaveFromModel(STGenericModel model, string FileName, List<STGenericTexture> Textures, STSkeleton skeleton = null, List<int> NodeArray = null)
{
ExtractedTextures.Clear();
Scene scene = new Scene();
scene.RootNode = new Node("RootNode");
progressBar = new STProgressBar();
progressBar.Task = "Exorting Skeleton...";
progressBar.Value = 0;
progressBar.StartPosition = FormStartPosition.CenterScreen;
progressBar.Show();
progressBar.Refresh();
SaveSkeleton(skeleton, scene.RootNode);
SaveMaterials(scene, model, FileName, Textures);
progressBar.Task = "Exorting Meshes...";
progressBar.Value = 50;
SaveMeshes(scene, model, skeleton, FileName, NodeArray);
progressBar.Task = "Saving File...";
progressBar.Value = 80;
SaveScene(FileName, scene, model);
progressBar.Value = 100;
progressBar.Close();
progressBar.Dispose();
}
private void SaveScene(string FileName, Scene scene, STGenericModel model)
{
using (var v = new AssimpContext())
{
string ext = System.IO.Path.GetExtension(FileName);
string formatID = "collada";
if (ext == ".obj")
formatID = "obj";
if (ext == ".3ds")
formatID = "3ds";
if (ext == ".dae")
formatID = "collada";
if (ext == ".ply")
formatID = "ply";
bool ExportSuccessScene = v.ExportFile(scene, FileName, formatID, PostProcessSteps.FlipUVs);
if (ExportSuccessScene)
{
// WriteExtraSkinningInfo(FileName, scene, model);
MessageBox.Show($"Exported {FileName} Successfuly!");
}
else
MessageBox.Show($"Failed to export {FileName}!");
}
}
private void SaveMeshes(Scene scene, STGenericModel model, STSkeleton skeleton, string FileName, List<int> NodeArray)
{
int MeshIndex = 0;
foreach (var obj in model.Nodes[0].Nodes)
{
var mesh = SaveMesh((STGenericObject)obj, skeleton, NodeArray);
scene.Meshes.Add(mesh);
MeshIndex++;
}
Node geomNode = new Node(Path.GetFileNameWithoutExtension(FileName), scene.RootNode);
for (int ob = 0; ob < scene.MeshCount; ob++)
{
geomNode.MeshIndices.Add(ob);
}
scene.RootNode.Children.Add(geomNode);
}
private Mesh SaveMesh(STGenericObject genericObj, STSkeleton skeleton, List<int> NodeArray)
{
Mesh mesh = new Mesh(genericObj.Text, PrimitiveType.Triangle);
mesh.MaterialIndex = genericObj.MaterialIndex;
List<Vector3D> textureCoords0 = new List<Vector3D>();
List<Vector3D> textureCoords1 = new List<Vector3D>();
List<Vector3D> textureCoords2 = new List<Vector3D>();
List<Color4D> vertexColors = new List<Color4D>();
int vertexID = 0;
foreach (Vertex v in genericObj.vertices)
{
mesh.Vertices.Add(new Vector3D(v.pos.X, v.pos.Y, v.pos.Z));
mesh.Normals.Add(new Vector3D(v.nrm.X, v.nrm.Y, v.nrm.Z));
textureCoords0.Add(new Vector3D(v.uv0.X, v.uv0.Y, 0));
textureCoords1.Add(new Vector3D(v.uv1.X, v.uv1.Y, 0));
textureCoords2.Add(new Vector3D(v.uv2.X, v.uv2.Y, 0));
vertexColors.Add(new Color4D(v.col.X, v.col.Y, v.col.Z, v.col.W));
mesh.TextureCoordinateChannels[0] = textureCoords0;
mesh.TextureCoordinateChannels[1] = textureCoords1;
mesh.TextureCoordinateChannels[2] = textureCoords2;
mesh.VertexColorChannels[0] = vertexColors;
if (skeleton != null)
{
for (int j = 0; j < v.boneIds.Count; j++)
{
if (j < genericObj.VertexSkinCount)
{
//Get the bone via the node array and bone index from the vertex
STBone STbone = skeleton.bones[NodeArray[v.boneIds[j]]];
//Find the index of a bone. If it doesn't exist then we add it
int boneInd = mesh.Bones.FindIndex(x => x.Name == STbone.Text);
if (boneInd == -1)
{
var matrices = Switch_Toolbox.Library.IO.MatrixExenstion.CalculateInverseMatrix(STbone);
//Set the inverse matrix
Matrix4x4 transform = matrices.inverse.FromNumerics();
//Create a new assimp bone
Bone bone = new Bone();
bone.Name = STbone.Text;
bone.OffsetMatrix = STbone.invert.ToMatrix4x4();
mesh.Bones.Add(bone);
BoneNames.Add(bone.Name);
boneInd = mesh.Bones.IndexOf(bone); //Set the index of the bone for the vertex weight
}
int MinWeightAmount = 0;
//Check if the max amount of weights is higher than the current bone id
if (v.boneWeights.Count > j && v.boneWeights[j] > MinWeightAmount)
{
if (v.boneWeights[j] <= 1)
mesh.Bones[boneInd].VertexWeights.Add(new VertexWeight(vertexID, v.boneWeights[j]));
else
mesh.Bones[boneInd].VertexWeights.Add(new VertexWeight(vertexID, 1));
}
else if (v.boneWeights.Count == 0 || v.boneWeights[j] > MinWeightAmount)
mesh.Bones[boneInd].VertexWeights.Add(new VertexWeight(vertexID, 1));
}
}
}
vertexID++;
}
List<int> faces = genericObj.lodMeshes[genericObj.DisplayLODIndex].faces;
for (int f = 0; f < faces.Count; f++)
mesh.Faces.Add(new Face(new int[] { faces[f++], faces[f++], faces[f] }));
mesh.TextureCoordinateChannels.SetValue(textureCoords0, 0);
return mesh;
}
//Extra skin data based on https://github.com/Sage-of-Mirrors/SuperBMD/blob/ce1061e9b5f57de112f1d12f6459b938594664a0/SuperBMDLib/source/Model.cs#L193
//Todo this doesn't quite work yet
//Need to adjust all mesh name IDs so they are correct
private void WriteExtraSkinningInfo(string FileName, Scene outScene, STGenericModel Model)
{
StreamWriter test = new StreamWriter(FileName + ".tmp");
StreamReader dae = File.OpenText(FileName);
while (!dae.EndOfStream)
{
string line = dae.ReadLine();
if (line == " <library_visual_scenes>")
{
AddControllerLibrary(outScene, test);
test.WriteLine(line);
test.Flush();
}
else if (line.Contains("<node"))
{
string[] testLn = line.Split('\"');
string name = testLn[3];
string jointLine = line.Replace(">", $" sid=\"{ name }\" type=\"JOINT\">");
test.WriteLine(jointLine);
test.Flush();
}
if (line.Contains("</visual_scene>"))
{
int index = 0;
foreach (Mesh mesh in outScene.Meshes)
{
test.WriteLine($" <node id=\"{ mesh.Name }\" name=\"{ mesh.Name }\" type=\"NODE\">");
test.WriteLine($" <instance_controller url=\"#{ mesh.Name }-skin\">");
test.WriteLine(" <skeleton>#skeleton_root</skeleton>");
test.WriteLine(" <bind_material>");
test.WriteLine(" <technique_common>");
test.WriteLine($" <instance_material symbol=\"theresonlyone\" target=\"#m{ mesh.MaterialIndex }mat\" />");
test.WriteLine(" </technique_common>");
test.WriteLine(" </bind_material>");
test.WriteLine(" </instance_controller>");
test.WriteLine(" </node>");
test.Flush();
index++;
}
test.WriteLine(line);
test.Flush();
}
else if (line.Contains("<matrix"))
{
string matLine = line.Replace("<matrix>", "<matrix sid=\"matrix\">");
test.WriteLine(matLine);
test.Flush();
}
else
{
test.WriteLine(line);
test.Flush();
}
}
test.Close();
dae.Close();
File.Copy(FileName + ".tmp", FileName, true);
File.Delete(FileName + ".tmp");
}
private void AddControllerLibrary(Scene scene, StreamWriter writer)
{
writer.WriteLine(" <library_controllers>");
for (int i = 0; i < scene.MeshCount; i++)
{
Mesh curMesh = scene.Meshes[i];
curMesh.Name = curMesh.Name.Replace('_', '-');
writer.WriteLine($" <controller id=\"{ curMesh.Name }-skin\" name=\"{ curMesh.Name }Skin\">");
writer.WriteLine($" <skin source=\"#meshId{ i }\">");
WriteBindShapeMatrixToStream(writer);
WriteJointNameArrayToStream(curMesh, writer);
WriteInverseBindMatricesToStream(curMesh, writer);
WriteSkinWeightsToStream(curMesh, writer);
writer.WriteLine(" <joints>");
writer.WriteLine($" <input semantic=\"JOINT\" source=\"#{ curMesh.Name }-skin-joints-array\"></input>");
writer.WriteLine($" <input semantic=\"INV_BIND_MATRIX\" source=\"#{ curMesh.Name }-skin-bind_poses-array\"></input>");
writer.WriteLine(" </joints>");
writer.Flush();
WriteVertexWeightsToStream(curMesh, writer);
writer.WriteLine(" </skin>");
writer.WriteLine(" </controller>");
writer.Flush();
}
writer.WriteLine(" </library_controllers>");
writer.Flush();
}
private void WriteJointNameArrayToStream(Mesh mesh, StreamWriter writer)
{
writer.WriteLine($" <source id =\"{ mesh.Name }-skin-joints-array\">");
writer.WriteLine($" <Name_array id=\"{ mesh.Name }-skin-joints-array\" count=\"{ mesh.Bones.Count }\">");
writer.Write(" ");
foreach (Bone bone in mesh.Bones)
{
writer.Write($"{ bone.Name }");
if (bone != mesh.Bones.Last())
writer.Write(' ');
else
writer.Write('\n');
writer.Flush();
}
writer.WriteLine(" </Name_array>");
writer.Flush();
writer.WriteLine(" <technique_common>");
writer.WriteLine($" <accessor source=\"#{ mesh.Name }-skin-joints-array\" count=\"{ mesh.Bones.Count }\" stride=\"1\">");
writer.WriteLine(" <param name=\"JOINT\" type=\"Name\"></param>");
writer.WriteLine(" </accessor>");
writer.WriteLine(" </technique_common>");
writer.WriteLine(" </source>");
writer.Flush();
}
private void WriteInverseBindMatricesToStream(Mesh mesh, StreamWriter writer)
{
writer.WriteLine($" <source id =\"{ mesh.Name }-skin-bind_poses-array\">");
writer.WriteLine($" <float_array id=\"{ mesh.Name }-skin-bind_poses-array\" count=\"{ mesh.Bones.Count * 16 }\">");
foreach (Bone bone in mesh.Bones)
{
Matrix4x4 ibm = bone.OffsetMatrix;
ibm.Transpose();
writer.WriteLine($" {ibm.A1.ToString("F")} {ibm.A2.ToString("F")} {ibm.A3.ToString("F")} {ibm.A4.ToString("F")}");
writer.WriteLine($" {ibm.B1.ToString("F")} {ibm.B2.ToString("F")} {ibm.B3.ToString("F")} {ibm.B4.ToString("F")}");
writer.WriteLine($" {ibm.C1.ToString("F")} {ibm.C2.ToString("F")} {ibm.C3.ToString("F")} {ibm.C4.ToString("F")}");
writer.WriteLine($" {ibm.D1.ToString("F")} {ibm.D2.ToString("F")} {ibm.D3.ToString("F")} {ibm.D4.ToString("F")}");
if (bone != mesh.Bones.Last())
writer.WriteLine("");
}
writer.WriteLine(" </float_array>");
writer.Flush();
writer.WriteLine(" <technique_common>");
writer.WriteLine($" <accessor source=\"#{ mesh.Name }-skin-bind_poses-array\" count=\"{ mesh.Bones.Count }\" stride=\"16\">");
writer.WriteLine(" <param name=\"TRANSFORM\" type=\"float4x4\"></param>");
writer.WriteLine(" </accessor>");
writer.WriteLine(" </technique_common>");
writer.WriteLine(" </source>");
writer.Flush();
}
private void WriteSkinWeightsToStream(Mesh mesh, StreamWriter writer)
{
int totalWeightCount = 0;
foreach (Bone bone in mesh.Bones)
{
totalWeightCount += bone.VertexWeightCount;
}
writer.WriteLine($" <source id =\"{ mesh.Name }-skin-weights-array\">");
writer.WriteLine($" <float_array id=\"{ mesh.Name }-skin-weights-array\" count=\"{ totalWeightCount }\">");
writer.Write(" ");
foreach (Bone bone in mesh.Bones)
{
foreach (VertexWeight weight in bone.VertexWeights)
{
writer.Write($"{ weight.Weight } ");
}
if (bone == mesh.Bones.Last())
writer.WriteLine();
}
writer.WriteLine(" </float_array>");
writer.Flush();
writer.WriteLine(" <technique_common>");
writer.WriteLine($" <accessor source=\"#{ mesh.Name }-skin-weights-array\" count=\"{ totalWeightCount }\" stride=\"1\">");
writer.WriteLine(" <param name=\"WEIGHT\" type=\"float\"></param>");
writer.WriteLine(" </accessor>");
writer.WriteLine(" </technique_common>");
writer.WriteLine(" </source>");
writer.Flush();
}
private class RiggedWeight
{
public List<float> Weights { get; private set; }
public List<int> BoneIndices { get; private set; }
public int WeightCount { get; private set; }
public RiggedWeight()
{
Weights = new List<float>();
BoneIndices = new List<int>();
}
public void AddWeight(float weight, int boneIndex)
{
Weights.Add(weight);
BoneIndices.Add(boneIndex);
WeightCount++;
}
}
private void WriteVertexWeightsToStream(Mesh mesh, StreamWriter writer)
{
List<float> weights = new List<float>();
Dictionary<int, RiggedWeight> vertIDWeights = new Dictionary<int, RiggedWeight>();
foreach (Bone bone in mesh.Bones)
{
foreach (VertexWeight weight in bone.VertexWeights)
{
weights.Add(weight.Weight);
if (!vertIDWeights.ContainsKey(weight.VertexID))
vertIDWeights.Add(weight.VertexID, new RiggedWeight());
vertIDWeights[weight.VertexID].AddWeight(weight.Weight, mesh.Bones.IndexOf(bone));
}
}
writer.WriteLine($" <vertex_weights count=\"{ vertIDWeights.Count }\">");
writer.WriteLine($" <input semantic=\"JOINT\" source=\"#{ mesh.Name }-skin-joints-array\" offset=\"0\"></input>");
writer.WriteLine($" <input semantic=\"WEIGHT\" source=\"#{ mesh.Name }-skin-weights-array\" offset=\"1\"></input>");
writer.WriteLine(" <vcount>");
writer.Write(" ");
for (int i = 0; i < vertIDWeights.Count; i++)
writer.Write($"{ vertIDWeights[i].WeightCount } ");
writer.WriteLine("\n </vcount>");
writer.WriteLine(" <v>");
writer.Write(" ");
for (int i = 0; i < vertIDWeights.Count; i++)
{
RiggedWeight curWeight = vertIDWeights[i];
for (int j = 0; j < curWeight.WeightCount; j++)
{
writer.Write($"{ curWeight.BoneIndices[j] } { weights.IndexOf(curWeight.Weights[j]) } ");
}
}
writer.WriteLine("\n </v>");
writer.WriteLine($" </vertex_weights>");
}
private void WriteBindShapeMatrixToStream(StreamWriter writer)
{
writer.WriteLine(" <bind_shape_matrix>");
writer.WriteLine(" 1 0 0 0");
writer.WriteLine(" 0 1 0 0");
writer.WriteLine(" 0 0 1 0");
writer.WriteLine(" 0 0 0 1");
writer.WriteLine(" </bind_shape_matrix>");
writer.Flush();
}
private void SaveMaterials(Scene scene, STGenericModel model, string FileName, List<STGenericTexture> Textures)
{
string TextureExtension = ".png";
string TexturePath = System.IO.Path.GetDirectoryName(FileName);
for (int i = 0; i < Textures.Count; i++)
{
string path = System.IO.Path.Combine(TexturePath, Textures[i].Text + TextureExtension);
if (!ExtractedTextures.Contains(path))
{
ExtractedTextures.Add(path);
progressBar.Task = $"Exorting Texture {Textures[i].Text}";
progressBar.Value = ((i * 100) / Textures.Count);
progressBar.Refresh();
var bitmap = Textures[i].GetBitmap();
bitmap.Save(path);
bitmap.Dispose();
GC.Collect();
}
}
foreach (var mat in model.Nodes[1].Nodes)
{
var genericMat = (STGenericMaterial)mat;
Material material = new Material();
material.Name = genericMat.Text;
foreach (var tex in genericMat.TextureMaps)
{
int index = Textures.FindIndex(r => r.Text.Equals(tex.Name));
string path = System.IO.Path.Combine(TexturePath, tex.Name + TextureExtension);
if (!File.Exists(path))
continue;
TextureSlot slot = new TextureSlot();
slot.FilePath = path;
slot.UVIndex = 0;
slot.Flags = 0;
slot.TextureIndex = 0;
slot.BlendFactor = 1.0f;
slot.Mapping = TextureMapping.FromUV;
slot.Operation = TextureOperation.Add;
if (tex.Type == STGenericMatTexture.TextureType.Diffuse)
slot.TextureType = TextureType.Diffuse;
else if (tex.Type == STGenericMatTexture.TextureType.Normal)
slot.TextureType = TextureType.Normals;
else if (tex.Type == STGenericMatTexture.TextureType.Specular)
slot.TextureType = TextureType.Specular;
else if (tex.Type == STGenericMatTexture.TextureType.Emission)
slot.TextureType = TextureType.Emissive;
else if (tex.Type == STGenericMatTexture.TextureType.Light)
{
slot.TextureType = TextureType.Lightmap;
slot.UVIndex = 2;
}
else if (tex.Type == STGenericMatTexture.TextureType.Shadow)
{
slot.TextureType = TextureType.Ambient;
slot.UVIndex = 1;
}
else
slot.TextureType = TextureType.Unknown;
if (tex.wrapModeS == 0)
slot.WrapModeU = TextureWrapMode.Wrap;
else if (tex.wrapModeS == 1)
slot.WrapModeU = TextureWrapMode.Mirror;
else if (tex.wrapModeS == 2)
slot.WrapModeU = TextureWrapMode.Clamp;
else
slot.WrapModeU = TextureWrapMode.Wrap;
if (tex.wrapModeT == 0)
slot.WrapModeV = TextureWrapMode.Wrap;
else if (tex.wrapModeT == 1)
slot.WrapModeV = TextureWrapMode.Mirror;
else if (tex.wrapModeT == 2)
slot.WrapModeV = TextureWrapMode.Clamp;
else
slot.WrapModeV = TextureWrapMode.Wrap;
material.AddMaterialTexture(ref slot);
}
scene.Materials.Add(material);
}
}
public void SaveFromObject(STGenericObject genericObject, string FileName)
{
Scene scene = new Scene();
scene.RootNode = new Node("Root");
var mesh = SaveMesh(genericObject, null, null);
mesh.MaterialIndex = 0;
scene.Meshes.Add(mesh);
Material material = new Material();
material.Name = "NewMaterial";
scene.Materials.Add(material);
SaveScene(FileName, scene, new STGenericModel());
}
private void SaveSkeleton(STSkeleton skeleton, Node parentNode)
{
Node root = new Node("skeleton_root");
parentNode.Children.Add(root);
if (skeleton.bones.Count > 0)
{
Node boneNode = new Node(skeleton.bones[0].Text);
boneNode.Transform = AssimpHelper.GetBoneMatrix(skeleton.bones[0]);
root.Children.Add(boneNode);
foreach (STBone child in skeleton.bones[0].GetChildren())
SaveBones(boneNode, child, skeleton);
}
}
private void SaveBones(Node parentBone, STBone bone, STSkeleton skeleton)
{
Node boneNode = new Node(bone.Text);
parentBone.Children.Add(boneNode);
boneNode.Transform = AssimpHelper.GetBoneMatrix(bone);
foreach (STBone child in bone.GetChildren())
SaveBones(boneNode, child, skeleton);
}
}
}