public static void Export(string FileName, ExportSettings settings,
List <STGenericMesh> Meshes, List <STGenericMaterial> Materials,
List <STGenericTexture> Textures, STSkeleton skeleton = null, List <int> NodeArray = null)
{
if (Materials == null)
{
Materials = new List <STGenericMaterial>();
}
if (settings.RemoveDuplicateVertices)
{
foreach (var mesh in Meshes)
{
mesh.RemoveDuplicateVertices();
}
}
Console.WriteLine($"DAE Materials {Materials.Count}");
List <string> failedTextureExport = new List <string>();
Dictionary <string, STGenericMaterial> MaterialRemapper = new Dictionary <string, STGenericMaterial>();
using (ColladaWriter writer = new ColladaWriter(FileName, settings))
{
writer.WriteAsset();
if (Materials.Count > 0)
{
List <string> textureNames = new List <string>();
for (int i = 0; i < Textures?.Count; i++)
{
if (!textureNames.Contains(Textures[i].Name))
{
textureNames.Add(Textures[i].Name);
}
if (settings.ExportTextures)
{
try
{
var bitmap = Textures[i].GetBitmap();
if (bitmap != null)
{
string textureName = Textures[i].Name;
if (textureName.RemoveIllegaleFileNameCharacters() != textureName)
{
string properName = textureName.RemoveIllegaleFileNameCharacters();
for (int m = 0; m < Materials?.Count; m++)
{
foreach (var tex in Materials[m].TextureMaps)
{
if (tex.Name == textureName)
{
tex.Name = properName;
}
}
}
textureName = properName;
}
if (settings.ImageFolder != "")
{
bitmap.Save($"{settings.ImageFolder}/{textureName}.png");
}
else
{
bitmap.Save($"{textureName}.png");
}
bitmap.Dispose();
GC.Collect();
}
}
catch (Exception ex)
{
failedTextureExport.Add(Textures[i].Name);
}
}
}
for (int i = 0; i < Materials.Count; i++)
{
if (Materials[i].Name == null)
{
Materials[i].Name = $"Material{i}";
}
}
List <Material> materials = new List <Material>();
foreach (var mat in Materials)
{
Material material = new Material();
material.Name = mat.Name;
if (!MaterialRemapper.ContainsKey(mat.Name))
{
MaterialRemapper.Add(mat.Name, mat);
}
else
{
string name = Utils.RenameDuplicateString(mat.Name, MaterialRemapper.Keys.ToList());
MaterialRemapper.Add(name, mat);
material.Name = name;
}
if (mat.DiffuseColor != null)
{
material.DiffuseColor = new float[4] {
mat.DiffuseColor.R / 255.0F,
mat.DiffuseColor.G / 255.0F,
mat.DiffuseColor.B / 255.0F,
mat.DiffuseColor.A / 255.0F
}
}
;
materials.Add(material);
foreach (var tex in mat.TextureMaps)
{
TextureMap texMap = new TextureMap();
texMap.Name = tex.Name;
if (tex.Type == STTextureType.Diffuse)
{
texMap.Type = PhongTextureType.diffuse;
}
else if (tex.Type == STTextureType.Normal)
{
texMap.Type = PhongTextureType.bump;
}
else if (tex.Type == STTextureType.Specular)
{
texMap.Type = PhongTextureType.specular;
}
else if (tex.Type == STTextureType.Emission)
{
texMap.Type = PhongTextureType.emission;
}
else
{
continue; //Skip adding unknown types
}
if (tex.WrapU == STTextureWrapMode.Repeat)
{
texMap.WrapModeS = SamplerWrapMode.WRAP;
}
else if (tex.WrapU == STTextureWrapMode.Mirror)
{
texMap.WrapModeS = SamplerWrapMode.MIRROR;
}
else if (tex.WrapU == STTextureWrapMode.Clamp)
{
texMap.WrapModeS = SamplerWrapMode.CLAMP;
}
if (tex.WrapV == STTextureWrapMode.Repeat)
{
texMap.WrapModeT = SamplerWrapMode.WRAP;
}
else if (tex.WrapV == STTextureWrapMode.Mirror)
{
texMap.WrapModeT = SamplerWrapMode.MIRROR;
}
else if (tex.WrapV == STTextureWrapMode.Clamp)
{
texMap.WrapModeT = SamplerWrapMode.CLAMP;
}
//If no textures are saved, still keep images references
//So the user can still dump textures after
if (Textures?.Count == 0 && !textureNames.Contains(texMap.Name))
{
textureNames.Add($"{texMap.Name}");
}
material.Textures.Add(texMap);
}
}
writer.WriteLibraryImages(textureNames.ToArray());
writer.WriteLibraryMaterials(materials);
writer.WriteLibraryEffects(materials);
}
else
{
writer.WriteLibraryImages();
}
if (skeleton != null)
{
for (int i = 0; i < skeleton.Bones.Count; i++)
{
if (skeleton.Bones[i].Name == null)
{
skeleton.Bones[i].Name = $"Bones{i}";
}
}
//Search for bones with rigging first
List <string> riggedBones = new List <string>();
if (settings.OnlyExportRiggedBones)
{
for (int i = 0; i < Meshes.Count; i++)
{
for (int v = 0; v < Meshes[i].Vertices.Count; v++)
{
var vertex = Meshes[i].Vertices[v];
for (int j = 0; j < vertex.BoneIndices.Count; j++)
{
int id = -1;
if (NodeArray != null && NodeArray.Count > vertex.BoneIndices[j])
{
id = NodeArray[vertex.BoneIndices[j]];
}
else
{
id = vertex.BoneIndices[j];
}
if (id < skeleton.Bones.Count && id != -1)
{
riggedBones.Add(skeleton.Bones[id].Name);
}
}
}
}
}
foreach (var bone in skeleton.Bones)
{
if (settings.OnlyExportRiggedBones && !riggedBones.Contains(bone.Name))
{
Console.WriteLine("Skipping " + bone.Name);
continue;
}
//Set the inverse matrix
var inverse = skeleton.GetBoneTransform(bone).Inverted();
var transform = bone.GetTransform();
float[] Transform = new float[] {
transform.M11, transform.M21, transform.M31, transform.M41,
transform.M12, transform.M22, transform.M32, transform.M42,
transform.M13, transform.M23, transform.M33, transform.M43,
transform.M14, transform.M24, transform.M34, transform.M44
};
float[] InvTransform = new float[] {
inverse.M11, inverse.M21, inverse.M31, inverse.M41,
inverse.M12, inverse.M22, inverse.M32, inverse.M42,
inverse.M13, inverse.M23, inverse.M33, inverse.M43,
inverse.M14, inverse.M24, inverse.M34, inverse.M44
};
writer.AddJoint(bone.Name, bone.ParentIndex == -1 ? "" :
skeleton.Bones[bone.ParentIndex].Name, Transform, InvTransform,
new float[3] {
bone.Position.X, bone.Position.Y, bone.Position.Z
},
new float[3] {
bone.EulerRotation.X, bone.EulerRotation.Y, bone.EulerRotation.Z
},
new float[3] {
bone.Scale.X, bone.Scale.Y, bone.Scale.Z
});
}
}
for (int i = 0; i < Meshes.Count; i++)
{
if (Meshes[i].Name == null)
{
Meshes[i].Name = $"Mesh{i}";
}
}
int meshIndex = 0;
writer.StartLibraryGeometries();
foreach (var mesh in Meshes)
{
int[] IndexTable = null;
if (NodeArray != null)
{
IndexTable = NodeArray.ToArray();
}
writer.StartGeometry(mesh.Name);
/* if (mesh.MaterialIndex != -1 && Materials.Count > mesh.MaterialIndex)
* {
* writer.CurrentMaterial = Materials[mesh.MaterialIndex].Text;
* Console.WriteLine($"MaterialIndex {mesh.MaterialIndex } {Materials[mesh.MaterialIndex].Text}");
* }*/
if (settings.TransformColorUVs)
{
List <STVertex> transformedVertices = new List <STVertex>();
foreach (var poly in mesh.PolygonGroups)
{
var mat = poly.Material;
if (mat == null)
{
continue;
}
var faces = poly.Faces;
for (int v = 0; v < poly.Faces.Count; v += 3)
{
if (faces.Count < v + 2)
{
break;
}
var diffuse = mat.TextureMaps.FirstOrDefault(x => x.Type == STTextureType.Diffuse);
STTextureTransform transform = new STTextureTransform();
if (diffuse != null)
{
transform = diffuse.Transform;
}
var vertexA = mesh.Vertices[(int)faces[v]];
var vertexB = mesh.Vertices[(int)faces[v + 1]];
var vertexC = mesh.Vertices[(int)faces[v + 2]];
if (!transformedVertices.Contains(vertexA))
{
vertexA.TexCoords[0] = (vertexA.TexCoords[0] * transform.Scale) + transform.Translate;
transformedVertices.Add(vertexA);
}
if (!transformedVertices.Contains(vertexB))
{
vertexB.TexCoords[0] = (vertexB.TexCoords[0] * transform.Scale) + transform.Translate;
transformedVertices.Add(vertexB);
}
if (!transformedVertices.Contains(vertexC))
{
vertexC.TexCoords[0] = (vertexC.TexCoords[0] * transform.Scale) + transform.Translate;
transformedVertices.Add(vertexC);
}
}
}
}
// collect sources
List <float> Position = new List <float>();
List <float> Normal = new List <float>();
List <float> UV1 = new List <float>();
List <float> UV2 = new List <float>();
List <float> UV3 = new List <float>();
List <float> Color = new List <float>();
List <float> Color2 = new List <float>();
List <int[]> BoneIndices = new List <int[]>();
List <float[]> BoneWeights = new List <float[]>();
bool HasNormals = false;
bool HasColors = false;
bool HasColors2 = false;
bool HasUV0 = false;
bool HasUV1 = false;
bool HasUV2 = false;
bool HasBoneIds = false;
mesh.OptimizeVertices();
foreach (var vertex in mesh.Vertices)
{
//Remove zero weights
if (settings.OptmizeZeroWeights)
{
float MaxWeight = 1;
for (int i = 0; i < 4; i++)
{
if (vertex.BoneWeights.Count <= i)
{
continue;
}
if (vertex.BoneIndices.Count < i + 1)
{
vertex.BoneWeights[i] = 0;
MaxWeight = 0;
}
else
{
float weight = vertex.BoneWeights[i];
if (vertex.BoneWeights.Count == i + 1)
{
weight = MaxWeight;
}
if (weight >= MaxWeight)
{
weight = MaxWeight;
MaxWeight = 0;
}
else
{
MaxWeight -= weight;
}
vertex.BoneWeights[i] = weight;
}
}
}
if (vertex.Normal != Vector3.Zero)
{
HasNormals = true;
}
if (vertex.Colors.Length > 0 && settings.UseVertexColors)
{
HasColors = true;
}
if (vertex.Colors.Length > 1 && settings.UseVertexColors)
{
HasColors2 = true;
}
if (vertex.TexCoords.Length > 0)
{
HasUV0 = true;
}
if (vertex.TexCoords.Length > 1)
{
HasUV1 = true;
}
if (vertex.TexCoords.Length > 2)
{
HasUV2 = true;
}
if (vertex.BoneIndices.Count > 0)
{
HasBoneIds = true;
}
Position.Add(vertex.Position.X); Position.Add(vertex.Position.Y); Position.Add(vertex.Position.Z);
Normal.Add(vertex.Normal.X); Normal.Add(vertex.Normal.Y); Normal.Add(vertex.Normal.Z);
for (int i = 0; i < vertex.TexCoords.Length; i++)
{
var texCoord = vertex.TexCoords[i];
if (settings.FlipTexCoordsVertical)
{
texCoord = new Vector2(texCoord.X, 1 - texCoord.Y);
}
if (i == 0)
{
UV1.Add(texCoord.X); UV1.Add(texCoord.Y);
}
if (i == 1)
{
UV2.Add(texCoord.X); UV2.Add(texCoord.Y);
}
if (i == 2)
{
UV3.Add(texCoord.X); UV3.Add(texCoord.Y);
}
}
if (vertex.Colors.Length > 0)
{
Color.AddRange(new float[] { vertex.Colors[0].X, vertex.Colors[0].Y, vertex.Colors[0].Z, vertex.Colors[0].W });
}
if (vertex.Colors.Length > 1)
{
Color2.AddRange(new float[] { vertex.Colors[1].X, vertex.Colors[1].Y, vertex.Colors[1].Z, vertex.Colors[1].W });
}
List <int> bIndices = new List <int>();
List <float> bWeights = new List <float>();
for (int b = 0; b < vertex.BoneIndices.Count; b++)
{
if (b > mesh.VertexSkinCount - 1)
{
continue;
}
if (vertex.BoneWeights.Count > b)
{
if (vertex.BoneWeights[b] == 0)
{
continue;
}
}
int index = -1;
if (IndexTable != null)
{
index = (int)IndexTable[vertex.BoneIndices[b]];
}
else
{
index = (int)vertex.BoneIndices[b];
}
if (index != -1 && index < skeleton?.Bones.Count)
{
bIndices.Add(index);
}
//Some models may only use indices (single bind, rigid skin)
if (vertex.BoneWeights.Count > b)
{
bWeights.Add(vertex.BoneWeights[b]);
}
else
{
bWeights.Add(1);
}
}
if (bIndices.Count == 0 && mesh.BoneIndex != -1)
{
HasBoneIds = true;
bIndices.Add(mesh.BoneIndex);
bWeights.Add(1);
}
BoneIndices.Add(bIndices.ToArray());
BoneWeights.Add(bWeights.ToArray());
}
List <TriangleList> triangleLists = new List <TriangleList>();
if (mesh.PolygonGroups.Count > 0)
{
foreach (var group in mesh.PolygonGroups)
{
TriangleList triangleList = new TriangleList();
triangleLists.Add(triangleList);
STGenericMaterial material = new STGenericMaterial();
if (group.MaterialIndex != -1 && Materials.Count > group.MaterialIndex)
{
material = Materials[group.MaterialIndex];
}
if (group.Material != null)
{
material = group.Material;
}
if (MaterialRemapper.Values.Any(x => x == material))
{
var key = MaterialRemapper.FirstOrDefault(x => x.Value == material).Key;
triangleList.Material = key;
}
else if (material.Name != string.Empty)
{
triangleList.Material = material.Name;
}
List <uint> faces = new List <uint>();
if (group.PrimitiveType == STPrimitiveType.TriangleStrips)
{
faces = TriangleConverter.ConvertTriangleStripsToTriangles(group.Faces);
}
else
{
faces = group.Faces;
}
for (int i = 0; i < faces.Count; i++)
{
triangleList.Indices.Add(faces[i]);
}
}
}
// write sources
writer.WriteGeometrySource(mesh.Name, SemanticType.POSITION, Position.ToArray(), triangleLists.ToArray());
if (HasNormals)
{
writer.WriteGeometrySource(mesh.Name, SemanticType.NORMAL, Normal.ToArray(), triangleLists.ToArray());
}
if (HasColors)
{
writer.WriteGeometrySource(mesh.Name, SemanticType.COLOR, Color.ToArray(), triangleLists.ToArray(), 0);
}
if (HasColors2)
{
writer.WriteGeometrySource(mesh.Name, SemanticType.COLOR, Color2.ToArray(), triangleLists.ToArray(), 1);
}
Console.WriteLine($"HasUV0 {HasUV0} {UV1.Count}");
if (HasUV0)
{
writer.WriteGeometrySource(mesh.Name, SemanticType.TEXCOORD, UV1.ToArray(), triangleLists.ToArray(), 0);
}
if (HasUV1)
{
writer.WriteGeometrySource(mesh.Name, SemanticType.TEXCOORD, UV2.ToArray(), triangleLists.ToArray(), 1);
}
if (HasUV2)
{
writer.WriteGeometrySource(mesh.Name, SemanticType.TEXCOORD, UV3.ToArray(), triangleLists.ToArray(), 2);
}
if (HasBoneIds)
{
writer.AttachGeometryController(BoneIndices, BoneWeights);
}
writer.EndGeometryMesh();
}
writer.EndGeometrySection();
}
}