716d1c4520
- Starting to make all texture classes use STGenericTexture. This will make all functions usable between each one and converting through other classes much easier. - Many bug fixes to the texture importer like duped texture importing, dds opening the window, index out of range issues, etc. - Start on titlebar information. - Start on ASTC texture format support. - Support TGA images. - Support FTEX importing and saving properly. - Export models properly along with textures (with generic classes). Todo, support rigs and bones.
603 lines
23 KiB
C#
603 lines
23 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using Assimp;
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using OpenTK;
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using Switch_Toolbox.Library.Rendering;
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using System.Windows.Forms;
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namespace Switch_Toolbox.Library
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{
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public class AssimpData
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{
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public Scene scene;
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public List<STGenericObject> objects = new List<STGenericObject>();
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public List<STGenericMaterial> materials = new List<STGenericMaterial>();
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public List<STGenericTexture> textures = new List<STGenericTexture>();
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public AssimpContext Importer = new AssimpContext();
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public string[] GetSupportedImportFormats()
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{
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return Importer.GetSupportedImportFormats();
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}
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public AssimpData()
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{
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}
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public void LoadFile(string FileName)
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{
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try
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{
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AssimpContext Importer = new AssimpContext();
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scene = Importer.ImportFile(FileName,
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PostProcessSteps.Triangulate |
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PostProcessSteps.JoinIdenticalVertices |
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PostProcessSteps.FlipUVs |
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PostProcessSteps.LimitBoneWeights |
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PostProcessSteps.CalculateTangentSpace |
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PostProcessSteps.GenerateNormals);
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LoadScene();
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}
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catch (Exception e)
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{
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if (e.ToString().Contains("Error loading unmanaged library from path"))
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{
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MessageBox.Show($"Failed to load assimp! Make sure you have Assimp32.dll next to the program!");
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}
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Console.WriteLine(e);
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}
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}
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public void processNode()
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{
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Matrix4x4 identity = Matrix4x4.Identity;
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if (scene.RootNode != null)
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{
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BuildNode(scene.RootNode, ref identity);
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}
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else
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{
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int Index = 0;
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foreach (Mesh msh in scene.Meshes)
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{
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objects.Add(CreateGenericObject(msh, Index, Matrix4.Identity));
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Index++;
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}
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}
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}
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private void BuildNode(Node parent, ref Matrix4x4 rootTransform)
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{
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Matrix4x4 trafo = parent.Transform;
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Matrix4x4 world = trafo * rootTransform;
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Matrix4 worldTK = AssimpHelper.TKMatrix(world);
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foreach (int index in parent.MeshIndices)
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objects.Add(CreateGenericObject(scene.Meshes[index], index, worldTK));
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foreach (Node child in parent.Children)
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BuildNode(child, ref world);
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}
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public void LoadScene()
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{
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objects.Clear();
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textures.Clear();
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materials.Clear();
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processNode();
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if (scene.HasMaterials)
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{
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foreach (Material mat in scene.Materials)
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{
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materials.Add(CreateGenericMaterial(mat));
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}
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}
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foreach (Assimp.Animation animation in scene.Animations)
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{
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}
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foreach (var tex in scene.Textures)
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{
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}
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}
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public Animation CreateGenericAnimation(Assimp.Animation animation)
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{
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Animation STanim = new Animation();
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STanim.Text = animation.Name;
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STanim.FrameCount = (int)animation.DurationInTicks;
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//Load node animations
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if (animation.HasNodeAnimations)
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{
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var _channels = new NodeAnimationChannel[animation.NodeAnimationChannelCount];
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for (int i = 0; i < _channels.Length; i++)
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{
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_channels[i] = new NodeAnimationChannel();
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}
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}
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//Load mesh animations
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if (animation.HasMeshAnimations)
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{
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var _meshChannels = new MeshAnimationChannel[animation.MeshAnimationChannelCount];
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for (int i = 0; i < _meshChannels.Length; i++)
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{
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_meshChannels[i] = new MeshAnimationChannel();
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}
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}
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return STanim;
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}
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public STGenericTexture CreateGenericTexture(string Path)
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{
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STGenericTexture tex = new STGenericTexture();
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switch (System.IO.Path.GetExtension(Path))
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{
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case ".dds":
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tex.LoadDDS(Path);
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break;
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case ".tga":
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tex.LoadTGA(Path);
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break;
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default:
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tex.LoadBitmap(Path);
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break;
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}
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return tex;
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}
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public STGenericMaterial CreateGenericMaterial(Material material)
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{
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STGenericMaterial mat = new STGenericMaterial();
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mat.Text = material.Name;
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foreach (var slot in material.GetAllMaterialTextures())
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{
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textures.Add(CreateGenericTexture(slot.FilePath));
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}
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TextureSlot tex;
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if (material.GetMaterialTexture(TextureType.Diffuse, 0, out tex))
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mat.TextureMaps.Add(CreateTextureSlot(tex, TextureType.Diffuse));
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if (material.GetMaterialTexture(TextureType.Normals, 1, out tex))
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mat.TextureMaps.Add(CreateTextureSlot(tex, TextureType.Normals));
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if (material.GetMaterialTexture(TextureType.Specular, 1, out tex))
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mat.TextureMaps.Add(CreateTextureSlot(tex, TextureType.Specular));
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return mat;
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}
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private STGenericMatTexture CreateTextureSlot(TextureSlot tex, TextureType type)
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{
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var matTex = new STGenericMatTexture();
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switch (type)
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{
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case TextureType.Diffuse:
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matTex.Type = STGenericMatTexture.TextureType.Diffuse;
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break;
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case TextureType.Normals:
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matTex.Type = STGenericMatTexture.TextureType.Normal;
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break;
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case TextureType.Lightmap:
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matTex.Type = STGenericMatTexture.TextureType.Light;
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break;
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case TextureType.Emissive:
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matTex.Type = STGenericMatTexture.TextureType.Emission;
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break;
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case TextureType.Specular:
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matTex.Type = STGenericMatTexture.TextureType.Specular;
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break;
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case TextureType.Shininess:
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matTex.Type = STGenericMatTexture.TextureType.Metalness;
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break;
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case TextureType.Opacity:
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matTex.Type = STGenericMatTexture.TextureType.Transparency;
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break;
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case TextureType.Displacement:
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break;
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default:
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matTex.Type = STGenericMatTexture.TextureType.Unknown;
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break;
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}
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matTex.Name = System.IO.Path.GetFileNameWithoutExtension(tex.FilePath);
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matTex.wrapModeS = SetWrapMode(tex.WrapModeU);
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matTex.wrapModeT = SetWrapMode(tex.WrapModeV);
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return matTex;
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}
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private int SetWrapMode(TextureWrapMode wrap)
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{
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switch (wrap)
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{
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case TextureWrapMode.Wrap:
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return 0;
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case TextureWrapMode.Mirror:
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return 1;
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case TextureWrapMode.Clamp:
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return 2;
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case TextureWrapMode.Decal:
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return 0;
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default:
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return 0;
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}
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}
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public STGenericObject CreateGenericObject(Mesh msh, int Index, Matrix4 transform)
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{
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STGenericObject obj = new STGenericObject();
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Console.WriteLine(msh.MaterialIndex);
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if (msh.MaterialIndex != -1)
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obj.MaterialIndex = msh.MaterialIndex;
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else
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scene.Materials.Add(new Material() { Name = msh.Name });
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if (scene.Materials[msh.MaterialIndex].Name == "")
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scene.Materials[msh.MaterialIndex].Name = msh.Name;
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obj.HasPos = msh.HasVertices;
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obj.HasNrm = msh.HasNormals;
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obj.HasUv0 = msh.HasTextureCoords(0);
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obj.HasUv1 = msh.HasTextureCoords(1);
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obj.HasUv2 = msh.HasTextureCoords(2);
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obj.HasIndices = msh.HasBones;
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if (msh.HasBones)
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obj.HasWeights = msh.Bones[0].HasVertexWeights;
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obj.HasTans = msh.HasTangentBasis;
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obj.HasBitans = msh.HasTangentBasis;
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obj.HasVertColors = msh.HasVertexColors(0);
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obj.ObjectName = msh.Name;
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obj.boneList = GetBoneList(msh);
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obj.MaxSkinInfluenceCount = GetVertexSkinCount(msh);
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STGenericObject.LOD_Mesh lod = new STGenericObject.LOD_Mesh();
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lod.faces = GetFaces(msh);
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lod.IndexFormat = STIndexFormat.UInt16;
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lod.PrimitiveType = STPolygonType.Triangle;
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lod.GenerateSubMesh();
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obj.lodMeshes.Add(lod);
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obj.vertices = GetVertices(msh, transform, obj);
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obj.VertexBufferIndex = Index;
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return obj;
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}
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public void SaveFromModel(STGenericModel model, string FileName, List<STGenericTexture> Textures)
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{
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Scene scene = new Scene();
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scene.RootNode = new Node("RootNode");
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int MeshIndex = 0;
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foreach (var obj in model.Nodes[0].Nodes)
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{
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var genericObj = (STGenericObject)obj;
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Mesh mesh = new Mesh(genericObj.Text, PrimitiveType.Triangle);
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mesh.MaterialIndex = genericObj.MaterialIndex;
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List<Vector3D> textureCoords0 = new List<Vector3D>();
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List<Vector3D> textureCoords1 = new List<Vector3D>();
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List<Vector3D> textureCoords2 = new List<Vector3D>();
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List<Color4D> vertexColors = new List<Color4D>();
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foreach (Vertex v in genericObj.vertices)
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{
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mesh.Vertices.Add(new Vector3D(v.pos.X, v.pos.Y, v.pos.Z));
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mesh.Normals.Add(new Vector3D(v.nrm.X, v.nrm.Y, v.nrm.Z));
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textureCoords0.Add(new Vector3D(v.uv0.X, v.uv0.Y, 0));
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textureCoords1.Add(new Vector3D(v.uv1.X, v.uv1.Y, 0));
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textureCoords2.Add(new Vector3D(v.uv2.X, v.uv2.Y, 0));
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vertexColors.Add(new Color4D(v.col.X, v.col.Y, v.col.Z, v.col.W));
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mesh.TextureCoordinateChannels[0] = textureCoords0;
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mesh.TextureCoordinateChannels[1] = textureCoords1;
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mesh.TextureCoordinateChannels[2] = textureCoords2;
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mesh.VertexColorChannels[0] = vertexColors;
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}
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List<int> faces = genericObj.lodMeshes[genericObj.DisplayLODIndex].faces;
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for (int f = 0; f < faces.Count; f++)
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mesh.Faces.Add(new Face(new int[] { faces[f++], faces[f++], faces[f] }));
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mesh.TextureCoordinateChannels.SetValue(textureCoords0, 0);
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scene.Meshes.Add(mesh);
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MeshIndex++;
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}
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string TextureExtension = ".png";
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string TexturePath = System.IO.Path.GetDirectoryName(FileName);
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foreach (var mat in model.Nodes[1].Nodes)
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{
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var genericMat = (STGenericMaterial)mat;
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Material material = new Material();
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material.Name = genericMat.Text;
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foreach (var tex in genericMat.TextureMaps)
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{
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TextureSlot slot = new TextureSlot();
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string path = System.IO.Path.Combine(TexturePath, tex.Name + TextureExtension);
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slot.FilePath = path;
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slot.UVIndex = 0;
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slot.Flags = 0;
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slot.TextureIndex = 0;
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slot.BlendFactor = 1.0f;
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slot.Mapping = TextureMapping.FromUV;
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slot.Operation = TextureOperation.Add;
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if (tex.Type == STGenericMatTexture.TextureType.Diffuse)
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slot.TextureType = TextureType.Diffuse;
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else if (tex.Type == STGenericMatTexture.TextureType.Normal)
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slot.TextureType = TextureType.Normals;
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else if (tex.Type == STGenericMatTexture.TextureType.Specular)
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slot.TextureType = TextureType.Specular;
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else if (tex.Type == STGenericMatTexture.TextureType.Emission)
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slot.TextureType = TextureType.Emissive;
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else if (tex.Type == STGenericMatTexture.TextureType.Light)
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{
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slot.TextureType = TextureType.Lightmap;
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slot.UVIndex = 2;
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}
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else if (tex.Type == STGenericMatTexture.TextureType.Shadow)
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{
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slot.TextureType = TextureType.Ambient;
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slot.UVIndex = 1;
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}
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else
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slot.TextureType = TextureType.Unknown;
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if (tex.wrapModeS == 0)
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slot.WrapModeU = TextureWrapMode.Wrap;
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if (tex.wrapModeS == 1)
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slot.WrapModeU = TextureWrapMode.Mirror;
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if (tex.wrapModeS == 2)
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slot.WrapModeU = TextureWrapMode.Clamp;
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if (tex.wrapModeT == 0)
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slot.WrapModeV = TextureWrapMode.Wrap;
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if (tex.wrapModeT == 1)
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slot.WrapModeV = TextureWrapMode.Mirror;
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if (tex.wrapModeT == 2)
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slot.WrapModeV = TextureWrapMode.Clamp;
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else
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{
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slot.WrapModeU = TextureWrapMode.Wrap;
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slot.WrapModeV = TextureWrapMode.Wrap;
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}
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material.AddMaterialTexture(ref slot);
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}
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scene.Materials.Add(material);
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}
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foreach (var tex in Textures)
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{
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string path = System.IO.Path.Combine(TexturePath, tex.Name + TextureExtension);
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if (!System.IO.File.Exists(path))
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tex.GetBitmap().Save(path);
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}
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using (var v = new AssimpContext())
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{
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string ext = System.IO.Path.GetExtension(FileName);
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string formatID = "obj";
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if (ext == ".obj")
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formatID = "obj";
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if (ext == ".fbx")
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formatID = "collada";
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if (ext == ".dae")
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formatID = "collada";
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if (v.ExportFile(scene, FileName, formatID, PostProcessSteps.ValidateDataStructure))
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System.Windows.Forms.MessageBox.Show($"Exported {FileName} Successfuly!");
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else
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System.Windows.Forms.MessageBox.Show($"Failed to export {FileName}!");
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}
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}
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public void SaveFromObject(List<Vertex> vertices, List<int> faces, string MeshName, string FileName)
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{
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Scene scene = new Scene();
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scene.RootNode = new Node("Root");
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Mesh mesh = new Mesh(MeshName, PrimitiveType.Triangle);
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List<Vector3D> textureCoords0 = new List<Vector3D>();
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List<Vector3D> textureCoords1 = new List<Vector3D>();
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List<Vector3D> textureCoords2 = new List<Vector3D>();
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List<Color4D> vertexColors = new List<Color4D>();
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foreach (Vertex v in vertices)
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{
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mesh.Vertices.Add(new Vector3D(v.pos.X, v.pos.Y, v.pos.Z));
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mesh.Normals.Add(new Vector3D(v.nrm.X, v.nrm.Y, v.nrm.Z));
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textureCoords0.Add(new Vector3D(v.uv0.X, v.uv0.Y, 0));
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textureCoords1.Add(new Vector3D(v.uv1.X, v.uv1.Y, 0));
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textureCoords2.Add(new Vector3D(v.uv2.X, v.uv2.Y, 0));
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vertexColors.Add(new Color4D(v.col.X, v.col.Y, v.col.Z, v.col.W));
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mesh.TextureCoordinateChannels[0] = textureCoords0;
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mesh.TextureCoordinateChannels[1] = textureCoords1;
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mesh.TextureCoordinateChannels[2] = textureCoords2;
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mesh.VertexColorChannels[0] = vertexColors;
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}
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for (int f = 0; f < faces.Count; f++)
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{
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mesh.Faces.Add(new Face(new int[] { faces[f++], faces[f++], faces[f] }));
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}
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mesh.MaterialIndex = 0;
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mesh.TextureCoordinateChannels.SetValue(textureCoords0, 0);
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scene.Meshes.Add(mesh);
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Material material = new Material();
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material.Name = "NewMaterial";
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scene.Materials.Add(material);
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using (var v = new AssimpContext())
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{
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v.ExportFile(scene, FileName, "obj");
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}
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}
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public List<int> GetFaces(Mesh msh)
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{
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List<int> faces = new List<int>();
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if (msh.HasFaces)
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{
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foreach (Face f in msh.Faces)
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{
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if (f.HasIndices)
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{
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foreach (int indx in f.Indices)
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faces.Add(indx);
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}
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}
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}
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return faces;
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}
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public List<string> GetBoneList(Mesh msh)
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{
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List<string> bones = new List<string>();
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foreach (Bone b in msh.Bones)
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{
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if (!bones.Contains(b.Name))
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bones.Add(b.Name);
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}
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return bones;
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}
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public int GetVertexSkinCount(Mesh msh)
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{
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List<int> indciesTotal = new List<int>();
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var blendIndexes = new List<List<int>>();
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var blendWeights = new List<List<float>>();
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int i;
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for (i = 0; i < msh.VertexCount; i++)
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{
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blendIndexes.Add(new List<int>());
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blendWeights.Add(new List<float>());
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}
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foreach (var bone in msh.Bones)
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{
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var bi = msh.Bones.IndexOf(bone);
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foreach (var vw in bone.VertexWeights)
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{
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blendIndexes[vw.VertexID].Add(bi);
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blendWeights[vw.VertexID].Add(vw.Weight);
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}
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}
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foreach (Bone b in msh.Bones)
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Console.WriteLine(b.VertexWeights.Count);
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if (msh.HasBones)
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return msh.Bones.Max(b => b.VertexWeightCount);
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return 0;
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}
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public List<Vertex> GetVertices(Mesh msh, Matrix4 transform, STGenericObject STobj)
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{
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List<Vertex> vertices = new List<Vertex>();
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for (int v = 0; v < msh.VertexCount; v++)
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{
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Vertex vert = new Vertex();
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if (msh.HasVertices)
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vert.pos = Vector3.TransformPosition(FromVector(msh.Vertices[v]), transform);
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|
if (msh.HasNormals)
|
|
vert.nrm = Vector3.TransformNormal(FromVector(msh.Normals[v]), transform);
|
|
if (msh.HasTextureCoords(0))
|
|
vert.uv0 = new Vector2(msh.TextureCoordinateChannels[0][v].X, msh.TextureCoordinateChannels[0][v].Y);
|
|
if (msh.HasTextureCoords(1))
|
|
vert.uv1 = new Vector2(msh.TextureCoordinateChannels[1][v].X, msh.TextureCoordinateChannels[1][v].Y);
|
|
if (msh.HasTextureCoords(2))
|
|
vert.uv2 = new Vector2(msh.TextureCoordinateChannels[2][v].X, msh.TextureCoordinateChannels[2][v].Y);
|
|
if (msh.HasTangentBasis)
|
|
vert.tan = new Vector4(msh.Tangents[v].X, msh.Tangents[v].Y, msh.Tangents[v].Z, 1);
|
|
if (msh.HasVertexColors(0))
|
|
vert.col = new Vector4(msh.VertexColorChannels[0][v].R, msh.VertexColorChannels[0][v].G, msh.VertexColorChannels[0][v].B, msh.VertexColorChannels[0][v].A);
|
|
if (msh.HasTangentBasis)
|
|
vert.bitan = new Vector4(msh.BiTangents[v].X, msh.BiTangents[v].Y, msh.BiTangents[v].Z, 1);
|
|
vertices.Add(vert);
|
|
}
|
|
if (msh.HasBones)
|
|
{
|
|
for (int i = 0; i < msh.BoneCount; i++)
|
|
{
|
|
Bone bn = msh.Bones[i];
|
|
if (bn.HasVertexWeights)
|
|
{
|
|
foreach (VertexWeight w in bn.VertexWeights)
|
|
{
|
|
// vertices[w.VertexID].pos = Vector3.TransformPosition(vertices[w.VertexID].pos, AssimpHelper.TKMatrix(bn.OffsetMatrix));
|
|
vertices[w.VertexID].boneWeights.Add(w.Weight);
|
|
vertices[w.VertexID].boneNames.Add(bn.Name);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
return vertices;
|
|
}
|
|
private Vector3 FromVector(Vector3D vec)
|
|
{
|
|
Vector3 v;
|
|
v.X = vec.X;
|
|
v.Y = vec.Y;
|
|
v.Z = vec.Z;
|
|
return v;
|
|
}
|
|
public static OpenTK.Matrix4 TKMatrix2(Assimp.Matrix4x4 matOut)
|
|
{
|
|
var matIn = new OpenTK.Matrix4();
|
|
|
|
matOut.A1 = matIn.M11;
|
|
matOut.B1 = matIn.M12;
|
|
matOut.C1 = matIn.M13;
|
|
matOut.D1 = matIn.M14;
|
|
|
|
//Y
|
|
matOut.A2 = matIn.M21;
|
|
matOut.B2 = matIn.M22;
|
|
matOut.C2 = matIn.M23;
|
|
matOut.D2 = matIn.M24;
|
|
|
|
//Z
|
|
matOut.A3 = matIn.M31;
|
|
matOut.B3 = matIn.M32;
|
|
matOut.C3 = matIn.M33;
|
|
matOut.D3 = matIn.M34;
|
|
|
|
//Translation
|
|
matOut.A4 = matIn.M41;
|
|
matOut.B4 = matIn.M42;
|
|
matOut.C4 = matIn.M43;
|
|
matOut.D4 = matIn.M44;
|
|
|
|
return matIn;
|
|
}
|
|
|
|
private Matrix4 FromAssimpMatrix(Matrix4x4 mat)
|
|
{
|
|
Vector3D scaling;
|
|
Vector3D tranlation;
|
|
Assimp.Quaternion rot;
|
|
mat.Decompose(out scaling, out rot, out tranlation);
|
|
|
|
Console.WriteLine($"rotQ " + rot);
|
|
|
|
Matrix4 positionMat = Matrix4.CreateTranslation(FromVector(tranlation));
|
|
Matrix4 rotQ = Matrix4.CreateFromQuaternion(AssimpHelper.TKQuaternion(rot));
|
|
Matrix4 scaleMat = Matrix4.CreateScale(FromVector(scaling));
|
|
Matrix4 matrixFinal = scaleMat * rotQ * positionMat;
|
|
|
|
return matrixFinal;
|
|
}
|
|
}
|
|
}
|