public static Node LoadHiearchy(Node parent, node daeNode,
STGenericModel model, ColladaScene colladaScene)
{
Node node = new Node(parent);
node.Name = daeNode.name;
node.Type = daeNode.type;
node.Transform = DaeUtility.GetMatrix(daeNode.Items) * parent.Transform;
try
{
if (daeNode.instance_geometry != null)
{
geometry geom = DaeUtility.FindGeoemertyFromNode(daeNode, colladaScene.geometries);
model.Meshes.Add(LoadMeshData(colladaScene, node, geom, colladaScene.materials));
}
if (daeNode.instance_controller != null)
{
controller controller = DaeUtility.FindControllerFromNode(daeNode, colladaScene.controllers);
geometry geom = DaeUtility.FindGeoemertyFromController(controller, colladaScene.geometries);
model.Meshes.Add(LoadMeshData(colladaScene, node, geom, colladaScene.materials, controller));
}
}
catch (Exception ex)
{
throw new Exception($"Failed to convert mesh {daeNode.name} \n {ex.ToString()}");
}
//Find the root bone
if (node.Type == NodeType.JOINT)
{
//Apply axis rotation
Matrix4 boneTransform = Matrix4.Identity;
if (colladaScene.UpAxisType == UpAxisType.Y_UP)
{
// boneTransform = Matrix4.CreateRotationX(MathHelper.DegreesToRadians(90));
}
if (colladaScene.UintSize != null && colladaScene.UintSize.meter != 1)
{
var scale = ApplyUintScaling(colladaScene, new Vector3(1));
boneTransform *= Matrix4.CreateScale(scale);
}
LoadBoneHiearchy(daeNode, model, null, ref boneTransform);
}
else if (daeNode.node1 != null)
{
foreach (node child in daeNode.node1)
{
node.Children.Add(LoadHiearchy(node, child, model, colladaScene));
}
}
return(node);
}
private static List <BoneWeight[]> ParseWeightController(controller controller, ColladaScene scene)
{
if (controller == null)
{
return(new List <BoneWeight[]>());
}
List <BoneWeight[]> boneWeights = new List <BoneWeight[]>();
skin skin = controller.Item as skin;
string[] skinningCounts = skin.vertex_weights.vcount.Trim(' ').Split(' ');
string[] indices = skin.vertex_weights.v.Trim(' ').Split(' ');
int maxSkinning = (int)scene.Settings.MaxSkinningCount;
int stride = skin.vertex_weights.input.Length;
int indexOffset = 0;
for (int v = 0; v < skinningCounts.Length; v++)
{
int numSkinning = Convert.ToInt32(skinningCounts[v]);
BoneWeight[] boneWeightsArr = new BoneWeight[Math.Min(maxSkinning, numSkinning)];
for (int j = 0; j < numSkinning; j++)
{
if (j < scene.Settings.MaxSkinningCount)
{
boneWeightsArr[j] = new BoneWeight();
foreach (var input in skin.vertex_weights.input)
{
int offset = (int)input.offset;
var source = DaeUtility.FindSourceFromInput(input, skin.source);
int index = Convert.ToInt32(indices[indexOffset + offset]);
if (input.semantic == "WEIGHT")
{
var weights = source.Item as float_array;
boneWeightsArr[j].Weight = (float)weights.Values[index];
}
if (input.semantic == "JOINT")
{
var bones = source.Item as Name_array;
boneWeightsArr[j].Bone = bones.Values[index];
}
}
}
indexOffset += stride;
}
boneWeightsArr = RemoveZeroWeights(boneWeightsArr);
boneWeights.Add(boneWeightsArr);
}
return(boneWeights);
}
private static STBone LoadBoneHiearchy(node daeNode, STGenericModel model,
STBone boneParent, ref Matrix4 parentTransform)
{
STBone bone = new STBone(model.Skeleton, daeNode.name);
model.Skeleton.Bones.Add(bone);
bone.Transform = DaeUtility.GetMatrix(daeNode.Items) * parentTransform;
bone.Parent = boneParent;
Console.WriteLine("NODE " + bone.Name + " " + bone.Transform);
parentTransform = Matrix4.Identity;
if (daeNode.node1 != null)
{
foreach (node child in daeNode.node1)
{
bone.Children.Add(LoadBoneHiearchy(child, model, bone, ref parentTransform));
}
}
return(bone);
}
private static void ConvertPolygon(ColladaScene scene, STGenericMesh mesh, mesh daeMesh,
InputLocalOffset[] inputs, List <BoneWeight[]> boneWeights,
library_materials materials, string material, string polys, int polyCount, string vcount = "")
{
List <uint> faces = new List <uint>();
STPolygonGroup group = new STPolygonGroup();
mesh.PolygonGroups.Add(group);
group.MaterialIndex = DaeUtility.FindMaterialIndex(materials, material);
string[] indices = polys.Trim(' ').Split(' ');
string[] vertexCount = new string[0];
if (vcount != string.Empty)
{
vertexCount = vcount.Trim(' ').Split(' ');
}
int stride = 0;
for (int i = 0; i < inputs.Length; i++)
{
stride = Math.Max(0, (int)inputs[i].offset + 1);
}
//Create a current list of all the vertices
//Use a list to expand duplicate indices
List <Vertex> vertices = new List <Vertex>();
var vertexSource = DaeUtility.FindSourceFromInput(daeMesh.vertices.input[0], daeMesh.source);
var floatArr = vertexSource.Item as float_array;
for (int v = 0; v < (int)floatArr.count / 3; v++)
{
vertices.Add(new Vertex(vertices.Count, new List <int>()));
}
var indexStride = (indices.Length / 3) / polyCount;
for (int i = 0; i < polyCount; i++)
{
int count = 3;
if (vertexCount.Length > i)
{
count = Convert.ToInt32(vertexCount[i]);
}
for (int v = 0; v < count; v++)
{
List <int> semanticIndices = new List <int>();
for (int j = 0; j < inputs.Length; j++)
{
int faceOffset = (indexStride * 3) * i;
int index = Convert.ToInt32(indices[faceOffset + (v * indexStride) + (int)inputs[j].offset]);
semanticIndices.Add(index);
}
BoneWeight[] boneWeightData = new BoneWeight[0];
if (boneWeights?.Count > semanticIndices[0])
{
boneWeightData = boneWeights[semanticIndices[0]];
}
VertexLoader.LoadVertex(ref faces, ref vertices, semanticIndices, boneWeightData);
}
}
int numTexCoordChannels = 0;
int numColorChannels = 0;
//Find them in both types of inputs
for (int i = 0; i < inputs.Length; i++)
{
if (inputs[i].semantic == "TEXCOORD")
{
numTexCoordChannels++;
}
if (inputs[i].semantic == "COLOR")
{
numColorChannels++;
}
}
for (int i = 0; i < daeMesh.vertices.input.Length; i++)
{
if (daeMesh.vertices.input[i].semantic == "TEXCOORD")
{
numTexCoordChannels++;
}
if (daeMesh.vertices.input[i].semantic == "COLOR")
{
numColorChannels++;
}
}
for (int i = 0; i < vertices.Count; i++)
{
if (!vertices[i].IsSet)
{
vertices.Remove(vertices[i]);
}
}
bool hasNormals = false;
foreach (var daeVertex in vertices)
{
if (daeVertex.semanticIndices.Count == 0)
{
continue;
}
STVertex vertex = new STVertex();
vertex.TexCoords = new Vector2[numTexCoordChannels];
vertex.Colors = new Vector4[numColorChannels];
vertex.BoneWeights = daeVertex.BoneWeights.ToList();
mesh.Vertices.Add(vertex);
//DAE has 2 inputs. Vertex and triangle inputs
//Triangle inputs use indices over vertex inputs which only use one
//Triangle inputs allow multiple color/uv sets unlike vertex inputs
//Certain programs ie Noesis DAEs use vertex inputs. Most programs use triangle inputs
for (int j = 0; j < daeMesh.vertices.input.Length; j++)
{
//Vertex inputs only use the first index
var vertexInput = daeMesh.vertices.input[j];
source source = DaeUtility.FindSourceFromInput(vertexInput, daeMesh.source);
if (source == null)
{
continue;
}
if (vertexInput.semantic == "NORMAL")
{
hasNormals = true;
}
int dataStride = (int)source.technique_common.accessor.stride;
int index = daeVertex.semanticIndices[0] * dataStride;
ParseVertexSource(ref vertex, scene, source, numTexCoordChannels, numColorChannels,
dataStride, index, 0, vertexInput.semantic);
}
for (int i = 0; i < inputs.Length; i++)
{
var input = inputs[i];
source source = DaeUtility.FindSourceFromInput(input, daeMesh.source);
if (source == null)
{
continue;
}
if (input.semantic == "NORMAL")
{
hasNormals = true;
}
int dataStride = (int)source.technique_common.accessor.stride;
int index = daeVertex.semanticIndices[i] * dataStride;
ParseVertexSource(ref vertex, scene, source, numTexCoordChannels, numColorChannels,
dataStride, index, (int)input.set, input.semantic);
}
}
group.Faces = faces;
if (!hasNormals)
{
CalculateNormals(mesh.Vertices, faces);
}
if (scene.Settings.RemoveDuplicateVerts)
{
RemoveDuplicateVerts(mesh.Vertices, faces);
}
}