private static void RecursivlyWriteDAEJoints(DAEWriter writer, Node joint, string parentName, Matrix4 parentTransform)
{
var transform = ModelImporter.FromMatrix(joint.Transform);
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 };
Matrix4 InvWorldTransform = (transform * parentTransform).Inverted();
float[] InvTransform = new float[] { InvWorldTransform.M11, InvWorldTransform.M21, InvWorldTransform.M31, InvWorldTransform.M41,
InvWorldTransform.M12, InvWorldTransform.M22, InvWorldTransform.M32, InvWorldTransform.M42,
InvWorldTransform.M13, InvWorldTransform.M23, InvWorldTransform.M33, InvWorldTransform.M43,
InvWorldTransform.M14, InvWorldTransform.M24, InvWorldTransform.M34, InvWorldTransform.M44 };
writer.AddJoint(joint.Name, parentName, Transform, InvTransform);
foreach (var child in joint.Children)
{
RecursivlyWriteDAEJoints(writer, child, joint.Name, transform * parentTransform);
}
}
private static void ExportCustomDAE(string filePath, Scene scene, ModelExportSettings settings)
{
using (DAEWriter writer = new DAEWriter(filePath, true))
{
var path = System.IO.Path.GetDirectoryName(filePath) + '\\';
writer.WriteAsset();
//DialogResult dialogResult = MessageBox.Show("Export Materials and Textures?", "DAE Exporter", MessageBoxButtons.YesNo);
//if (dialogResult == DialogResult.Yes)
{
List <string> TextureNames = new List <string>();
foreach (var tex in scene.Materials)
{
if (!TextureNames.Contains(tex.TextureDiffuse.FilePath))
{
TextureNames.Add(tex.TextureDiffuse.FilePath);
}
}
writer.WriteLibraryImages(TextureNames.ToArray(), ".png");
writer.StartMaterialSection();
foreach (var mat in scene.Materials)
{
writer.WriteMaterial(mat.Name);
}
writer.EndMaterialSection();
writer.StartEffectSection();
foreach (var mat in scene.Materials)
{
writer.WriteEffect(mat.Name, mat.TextureDiffuse.FilePath);
}
writer.EndEffectSection();
}
//else
// writer.WriteLibraryImages();
var rootSkeleton = scene.RootNode.Children[0];
RecursivlyWriteDAEJoints(writer, rootSkeleton, "", Matrix4.Identity);
writer.StartGeometrySection();
for (int i = 1; i < scene.RootNode.Children.Count; i++)
{
var node = scene.RootNode.Children[i];
writer.StartGeometryMesh(node.Name);
List <uint> triangles = new List <uint>();
List <float> vertices = new List <float>();
List <float> nrm = new List <float>();
List <float> uv0 = new List <float>();
List <float> uv1 = new List <float>();
List <float> clr0 = new List <float>();
List <float> clr1 = new List <float>();
List <List <int> > BoneIndicies = new List <List <int> >();
List <List <float> > BoneWeights = new List <List <float> >();
foreach (var meshIndex in node.MeshIndices)
{
var vertexOffset = vertices.Count / 3;
var mesh = scene.Meshes[meshIndex];
if (!mesh.HasFaces || !mesh.HasVertices)
{
continue;
}
if (scene.Materials.Count != 0)
{
writer.CurrentMaterial = scene.Materials[mesh.MaterialIndex].Name;
}
foreach (var face in mesh.Faces)
{
for (var k = 0; k < 3; k++)
{
triangles.Add((uint)(vertexOffset + face.Indices[2 - k]));
}
}
if (mesh.HasBones)
{
for (int v = 0; v < mesh.VertexCount; v++)
{
BoneIndicies.Add(new List <int>());
BoneWeights.Add(new List <float>());
}
foreach (var bone in mesh.Bones)
{
if (bone.HasVertexWeights)
{
foreach (var w in bone.VertexWeights)
{
BoneIndicies[w.VertexID + vertexOffset].Add(writer.GetJointIndex(bone.Name));
BoneWeights[w.VertexID + vertexOffset].Add(w.Weight);
}
}
}
}
vertices.AddRange(ToFloatArray(mesh.Vertices));
if (mesh.HasNormals)
{
nrm.AddRange(ToFloatArray(mesh.Normals));
}
if (mesh.HasTextureCoords(0))
{
uv0.AddRange(ToUVFloatArray(mesh.TextureCoordinateChannels[0], settings.FlipUVs));
}
if (mesh.HasTextureCoords(1))
{
uv0.AddRange(ToUVFloatArray(mesh.TextureCoordinateChannels[1], settings.FlipUVs));
}
if (mesh.HasVertexColors(0))
{
clr0.AddRange(ToFloatArray(mesh.VertexColorChannels[0]));
}
if (mesh.HasVertexColors(1))
{
clr0.AddRange(ToFloatArray(mesh.VertexColorChannels[1]));
}
}
var triArr = triangles.ToArray();
writer.WriteGeometrySource(node.Name, DAEWriter.VERTEX_SEMANTIC.POSITION, vertices.ToArray(), triArr);
if (nrm.Count > 0)
{
writer.WriteGeometrySource(node.Name, DAEWriter.VERTEX_SEMANTIC.NORMAL, nrm.ToArray(), triArr);
}
if (uv0.Count > 0)
{
writer.WriteGeometrySource(node.Name, DAEWriter.VERTEX_SEMANTIC.TEXCOORD, uv0.ToArray(), triArr, 0);
}
if (uv1.Count > 0)
{
writer.WriteGeometrySource(node.Name, DAEWriter.VERTEX_SEMANTIC.TEXCOORD, uv1.ToArray(), triArr, 1);
}
if (clr0.Count > 0)
{
writer.WriteGeometrySource(node.Name, DAEWriter.VERTEX_SEMANTIC.COLOR, clr0.ToArray(), triArr, 0);
}
if (clr1.Count > 0)
{
writer.WriteGeometrySource(node.Name, DAEWriter.VERTEX_SEMANTIC.COLOR, clr0.ToArray(), triArr, 1);
}
writer.AttachGeometryController(BoneIndicies, BoneWeights);
writer.EndGeometryMesh();
}
writer.EndGeometrySection();
}
}
