private void ExportCollada_NodeSub(XmlWriter xml, IReadOnlyList<string> boneNames, Kn5Node node) {
xml.WriteStartElement("node");
xml.WriteAttributeStringSafe("id", node.Name);
xml.WriteAttributeStringSafe("sid", node.Name);
xml.WriteAttributeStringSafe("name", node.Name);
xml.WriteAttributeString("layer", node.Active ? "Visible" : "Hidden");
xml.WriteAttributeString("type", node.NodeClass == Kn5NodeClass.Base && boneNames.Contains(node.Name) ? "JOINT" : "NODE");
if (node.Children?.FirstOrDefault()?.NodeClass != Kn5NodeClass.SkinnedMesh) {
xml.WriteElement("matrix",
"sid", "transform",
node.NodeClass == Kn5NodeClass.Base ? XmlWriterExtension.MatrixToCollada(node.Transform) : "1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0");
}
if (IsMultiMaterial(node) && node.Children != null) {
xml.WriteStartElement("instance_geometry");
xml.WriteAttributeStringSafe("url", $"#{node.Name}-mesh");
ExportCollada_NodeSub_BindMaterial(xml, node.Children.Select(x => x.MaterialId).ToArray());
xml.WriteEndElement();
} else {
ExportCollada_NodeSub_Inner(xml, boneNames, node);
}
xml.WriteEndElement(); // node
}
private void ExportCollada_Mesh(XmlWriter xml, string name, IReadOnlyList<Kn5Node> unsorted) {
xml.WriteStartElement("geometry");
xml.WriteAttributeStringSafe("id", $"{name}-mesh");
xml.WriteAttributeStringSafe("name", name);
xml.WriteStartElement("mesh");
var nodes = unsorted.Count == 1 ? unsorted :
unsorted.OrderBy(x => int.Parse(x.Name.Split(new[] { "_SUB" }, StringSplitOptions.None).Last())).ToList();
/* coordinates */
var vertexCount = nodes.Sum(x => x.Vertices.Length);
xml.WriteStartElement("source");
xml.WriteAttributeStringSafe("id", $"{name}-mesh-positions");
xml.WriteStartElement("float_array");
xml.WriteAttributeStringSafe("id", $"{name}-mesh-positions-array");
xml.WriteAttributeString("count", vertexCount * 3);
xml.WriteString(nodes.SelectMany(x => x.Vertices).SelectMany(x => x.Co).JoinToString(" "));
xml.WriteEndElement(); // float_array
xml.WriteStartElement("technique_common");
xml.WriteStartElement("accessor");
xml.WriteAttributeStringSafe("source", $"#{name}-mesh-positions-array");
xml.WriteAttributeString("count", vertexCount);
xml.WriteAttributeString("stride", 3);
xml.WriteElement("param",
"name", "X",
"type", "float");
xml.WriteElement("param",
"name", "Y",
"type", "float");
xml.WriteElement("param",
"name", "Z",
"type", "float");
xml.WriteEndElement(); // accessor
xml.WriteEndElement(); // technique_common
xml.WriteEndElement(); // source
/* normals */
xml.WriteStartElement("source");
xml.WriteAttributeStringSafe("id", $"{name}-mesh-normals");
xml.WriteStartElement("float_array");
xml.WriteAttributeStringSafe("id", $"{name}-mesh-normals-array");
xml.WriteAttributeString("count", vertexCount * 3);
xml.WriteString(nodes.SelectMany(x => x.Vertices).SelectMany(x => x.Normal).JoinToString(" "));
xml.WriteEndElement(); // float_array
xml.WriteStartElement("technique_common");
xml.WriteStartElement("accessor");
xml.WriteAttributeStringSafe("source", $"#{name}-mesh-normals-array");
xml.WriteAttributeString("count", vertexCount);
xml.WriteAttributeString("stride", "3");
xml.WriteElement("param",
"name", "X",
"type", "float");
xml.WriteElement("param",
"name", "Y",
"type", "float");
xml.WriteElement("param",
"name", "Z",
"type", "float");
xml.WriteEndElement(); // accessor
xml.WriteEndElement(); // technique_common
xml.WriteEndElement(); // source
/* uv */
xml.WriteStartElement("source");
xml.WriteAttributeStringSafe("id", $"{name}-mesh-map-0");
xml.WriteStartElement("float_array");
xml.WriteAttributeStringSafe("id", $"{name}-mesh-map-0-array");
xml.WriteAttributeString("count", vertexCount * 2);
xml.WriteString(nodes.SelectMany(x => x.Vertices).SelectMany(x => new[] { x.Uv[0], -x.Uv[1] }).JoinToString(" "));
xml.WriteEndElement(); // float_array
xml.WriteStartElement("technique_common");
xml.WriteStartElement("accessor");
xml.WriteAttributeStringSafe("source", $"#{name}-mesh-map-0-array");
xml.WriteAttributeString("count", vertexCount);
xml.WriteAttributeString("stride", 2);
xml.WriteElement("param",
"name", "S",
"type", "float");
xml.WriteElement("param",
"name", "T",
"type", "float");
xml.WriteEndElement(); // accessor
xml.WriteEndElement(); // technique_common
xml.WriteEndElement(); // source
/* vertices */
xml.WriteStartElement("vertices");
xml.WriteAttributeStringSafe("id", $"{name}-mesh-vertices");
xml.WriteElement("input",
"semantic", "POSITION",
"source", $"#{name}-mesh-positions");
xml.WriteEndElement();
/* triangles */
var offset = 0;
foreach (var node in nodes) {
xml.WriteStartElement("triangles");
xml.WriteAttributeStringSafe("original_node", $"{node.Name}");
xml.WriteAttributeStringSafe("material", $"{Materials.Values.ElementAt((int)node.MaterialId).Name}-material");
xml.WriteAttributeString("count", node.Indices.Length / 3);
xml.WriteElement("input",
"semantic", "VERTEX",
"source", $"#{name}-mesh-vertices",
"offset", 0);
xml.WriteElement("input",
"semantic", "NORMAL",
"source", $"#{name}-mesh-normals",
"offset", 1);
xml.WriteElement("input",
"semantic", "TEXCOORD",
"source", $"#{name}-mesh-map-0",
"offset", 2,
"set", 0);
var inner = offset;
xml.WriteElementString("p", node.Indices.SelectMany(x => new[] { x + inner, x + inner, x + inner }).JoinToString(" "));
xml.WriteEndElement(); // triangles
offset += node.Vertices.Length;
}
xml.WriteEndElement(); // mesh
xml.WriteEndElement(); // geometry
}
private void ExportCollada_NodeSub_Inner(XmlWriter xml, IReadOnlyList<string> boneNames, Kn5Node node) {
switch (node.NodeClass) {
case Kn5NodeClass.Base:
if (node.Children.Count == 1 && node.Children[0].NodeClass != Kn5NodeClass.Base) {
ExportCollada_NodeSub_Inner(xml, boneNames, node.Children[0]);
} else {
foreach (var t in node.Children) {
ExportCollada_NodeSub(xml, boneNames, t);
}
}
break;
case Kn5NodeClass.Mesh:
xml.WriteStartElement("instance_geometry");
xml.WriteAttributeStringSafe("url", $"#{node.Name}-mesh");
ExportCollada_NodeSub_BindMaterial(xml, node.MaterialId);
xml.WriteEndElement();
break;
case Kn5NodeClass.SkinnedMesh:
xml.WriteStartElement("instance_controller");
xml.WriteAttributeStringSafe("url", $"#{node.Name}Controller");
ExportCollada_NodeSub_BindMaterial(xml, node.MaterialId);
foreach (var bone in node.Bones) {
xml.WriteElementString("skeleton", $"#{bone.Name}");
}
xml.WriteEndElement(); // instance_controller
break;
}
}
private void ExportCollada_Skinned(XmlWriter xml, Kn5Node node) {
switch (node.NodeClass) {
case Kn5NodeClass.Base:
foreach (var child in node.Children) {
ExportCollada_Skinned(xml, child);
}
break;
case Kn5NodeClass.Mesh:
return;
case Kn5NodeClass.SkinnedMesh:
xml.WriteStartElement("controller");
xml.WriteAttributeStringSafe("id", $"{node.Name}Controller");
xml.WriteStartElement("skin");
xml.WriteAttributeStringSafe("source", $"#{node.Name}-mesh");
// xml.WriteElementString("bind_shape_matrix", "1 0 0 0 0 0 1 0 0 -1 0 0 0 0 0 1");
xml.WriteElementString("bind_shape_matrix", "1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1");
// Joints
xml.WriteStartElement("source");
xml.WriteAttributeStringSafe("id", $"{node.Name}Controller-Joints");
xml.WriteStartElement("Name_array");
xml.WriteAttributeStringSafe("id", $"{node.Name}Controller-Joints-array");
xml.WriteAttributeString("count", node.Bones.Length);
xml.WriteString(node.Bones.Select(x => x.Name).JoinToString(" "));
xml.WriteEndElement(); // Name_array
xml.WriteStartElement("technique_common");
xml.WriteStartElement("accessor");
xml.WriteAttributeStringSafe("source", $"#{node.Name}Controller-Joints-array");
xml.WriteAttributeString("count", node.Bones.Length);
xml.WriteAttributeString("stride", 1);
xml.WriteStartElement("param");
xml.WriteAttributeString("name", "JOINT");
xml.WriteAttributeString("type", "name");
xml.WriteEndElement(); // param
xml.WriteEndElement(); // accessor
xml.WriteEndElement(); // technique_common
xml.WriteEndElement(); // source (Joints)
// Matrices
xml.WriteStartElement("source");
xml.WriteAttributeStringSafe("id", $"{node.Name}Controller-Matrices");
xml.WriteStartElement("float_array");
xml.WriteAttributeStringSafe("id", $"{node.Name}Controller-Matrices-array");
xml.WriteAttributeString("count", node.Bones.Length * 16);
xml.WriteString(node.Bones.Select(x => XmlWriterExtension.MatrixToCollada(x.Transform))
.JoinToString(" "));
xml.WriteEndElement(); // float_array
xml.WriteStartElement("technique_common");
xml.WriteStartElement("accessor");
xml.WriteAttributeStringSafe("source", $"#{node.Name}Controller-Matrices-array");
xml.WriteAttributeString("count", node.Bones.Length);
xml.WriteAttributeString("stride", 16);
xml.WriteStartElement("param");
xml.WriteAttributeString("name", "TRANSFORM");
xml.WriteAttributeString("type", "float4x4");
xml.WriteEndElement(); // param
xml.WriteEndElement(); // accessor
xml.WriteEndElement(); // technique_common
xml.WriteEndElement(); // source (Matrices)
// Weights
xml.WriteStartElement("source");
xml.WriteAttributeStringSafe("id", $"{node.Name}Controller-Weights");
xml.WriteStartElement("float_array");
xml.WriteAttributeStringSafe("id", $"{node.Name}Controller-Weights-array");
var weights = node.VerticeWeights.SelectMany(x => x.Weights.Where((y, i) => !Equals(x.Indices[i], -1f))).ToList();
xml.WriteAttributeString("count", weights.Count);
xml.WriteString(weights.JoinToString(" "));
xml.WriteEndElement(); // float_array
xml.WriteStartElement("technique_common");
xml.WriteStartElement("accessor");
xml.WriteAttributeStringSafe("source", $"#{node.Name}Controller-Weights-array");
xml.WriteAttributeString("count", weights.Count);
xml.WriteAttributeString("stride", 1);
xml.WriteStartElement("param");
xml.WriteAttributeString("name", "WEIGHT");
xml.WriteAttributeString("type", "float");
xml.WriteEndElement(); // param
xml.WriteEndElement(); // accessor
xml.WriteEndElement(); // technique_common
xml.WriteEndElement(); // source (Matrices)
xml.WriteStartElement("joints");
xml.WriteStartElement("input");
xml.WriteAttributeString("semantic", "JOINT");
xml.WriteAttributeStringSafe("source", $"#{node.Name}Controller-Joints");
xml.WriteEndElement(); // input
xml.WriteStartElement("input");
xml.WriteAttributeString("semantic", "INV_BIND_MATRIX");
xml.WriteAttributeStringSafe("source", $"#{node.Name}Controller-Matrices");
xml.WriteEndElement(); // input
xml.WriteEndElement(); // joints
xml.WriteStartElement("vertex_weights");
xml.WriteAttributeString("count", node.Vertices.Length);
xml.WriteStartElement("input");
xml.WriteAttributeString("semantic", "JOINT");
xml.WriteAttributeString("offset", 0);
xml.WriteAttributeStringSafe("source", $"#{node.Name}Controller-Joints");
xml.WriteEndElement(); // input
xml.WriteStartElement("input");
xml.WriteAttributeString("semantic", "WEIGHT");
xml.WriteAttributeString("offset", 1);
xml.WriteAttributeStringSafe("source", $"#{node.Name}Controller-Weights");
xml.WriteEndElement(); // input
xml.WriteElementString("vcount", node.VerticeWeights.Select(x => x.Weights.Where(y => !Equals(y, 0f)).Count()).JoinToString(" "));
var k = 0;
xml.WriteElementString("v", node.VerticeWeights.SelectMany(x =>
x.Indices.Where(y => !Equals(y, -1f)).SelectMany((y, i) => new[] { y, k++ })).JoinToString(" "));
xml.WriteEndElement(); // vertex_weights
xml.WriteEndElement(); // skin
xml.WriteEndElement(); // controller
break;
}
}
private void ExportCollada_Material(XmlWriter xml, Kn5Material material) {
xml.WriteStartElement("material");
xml.WriteAttributeStringSafe("id", $"{material.Name}-material");
xml.WriteAttributeStringSafe("name", material.Name);
xml.WriteStartElement("instance_effect");
xml.WriteAttributeStringSafe("url", $"#{material.Name}-effect");
xml.WriteEndElement();
xml.WriteEndElement();
}
private void ExportCollada_MaterialEffect(XmlWriter xml, Kn5Material material) {
xml.WriteStartElement("effect");
xml.WriteAttributeStringSafe("id", $"{material.Name}-effect");
xml.WriteStartElement("profile_COMMON");
xml.WriteStartElement("technique");
xml.WriteAttributeString("sid", "common");
xml.WriteStartElement("phong");
xml.WriteStartElement("emission");
xml.WriteStartElement("color");
xml.WriteAttributeString("sid", "emission");
var ksEmissive = material.GetPropertyByName("ksEmissive");
xml.WriteString(ksEmissive == null ? "0 0 0 1" :
$"{ksEmissive.ValueC[0].ToString(CultureInfo.InvariantCulture)} {ksEmissive.ValueC[1].ToString(CultureInfo.InvariantCulture)} {ksEmissive.ValueC[2].ToString(CultureInfo.InvariantCulture)} 1");
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteStartElement("ambient");
xml.WriteStartElement("color");
xml.WriteAttributeString("sid", "ambient");
var ksAmbient = material.GetPropertyByName("ksAmbient");
xml.WriteString(ksAmbient == null ? "0.4 0.4 0.4 1" : string.Format("{0} {0} {0} 1", ksAmbient.ValueA.ToString(CultureInfo.InvariantCulture)));
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteStartElement("diffuse");
var txDiffuse = material.GetMappingByName("txDiffuse");
if (txDiffuse != null) {
ExportCollada_MaterialEffectTexture(xml, txDiffuse);
}
xml.WriteStartElement("color");
xml.WriteAttributeString("sid", "diffuse");
var ksDiffuse = material.GetPropertyByName("ksDiffuse");
xml.WriteString(ksDiffuse == null ? "0.6 0.6 0.6 1" : string.Format("{0} {0} {0} 1", ksDiffuse.ValueA.ToString(CultureInfo.InvariantCulture)));
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteStartElement("specular");
xml.WriteStartElement("color");
xml.WriteAttributeString("sid", "specular");
var ksSpecular = material.GetPropertyByName("ksSpecular");
xml.WriteString(ksSpecular == null ? "0.5 0.5 0.5 1" : string.Format("{0} {0} {0} 1", ksSpecular.ValueA.ToString(CultureInfo.InvariantCulture)));
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteStartElement("shininess");
xml.WriteStartElement("float");
xml.WriteAttributeString("sid", "shininess");
xml.WriteString(material.GetPropertyByName("ksSpecularEXP")?.ValueA ?? 50);
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteStartElement("index_of_refraction");
xml.WriteStartElement("float");
xml.WriteAttributeString("sid", "index_of_refraction");
xml.WriteString(1f);
xml.WriteEndElement();
xml.WriteEndElement();
if (material.BlendMode == Kn5MaterialBlendMode.AlphaBlend) {
xml.WriteStartElement("transparent");
xml.WriteAttributeString("opaque", "RGB_ZERO");
if (material.ShaderName == "ksPerPixelNM" || material.ShaderName == "ksPerPixelNM_UV2" ||
material.ShaderName == "ksPerPixelMultiMap_AT" || material.ShaderName == "ksPerPixelMultiMap_AT_NMDetail") {
var txNormal = material.GetMappingByName("txNormal");
if (txNormal != null) {
ExportCollada_MaterialEffectTexture(xml, txNormal);
}
} else if (txDiffuse != null) {
ExportCollada_MaterialEffectTexture(xml, txDiffuse);
}
xml.WriteEndElement(); // transparent
}
var alpha = 1.0f;
switch (material.ShaderName) {
case "ksBrokenGlass":
alpha = 0f;
break;
case "ksPerPixelAlpha":
alpha = material.GetPropertyByName("alpha")?.ValueA ?? 1f;
break;
}
if (!Equals(alpha, 1f)) {
xml.WriteStartElement("transparency");
xml.WriteStartElement("float");
xml.WriteAttributeString("sid", "transparency");
xml.WriteString(alpha);
xml.WriteEndElement(); // float
xml.WriteEndElement(); // transparency
}
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteEndElement();
}
private void ExportCollada_MaterialEffectTexture(XmlWriter xml, Kn5Material.TextureMapping tex) {
xml.WriteStartElement("texture");
xml.WriteAttributeStringSafe("texture", $"{tex.Texture}-image");
xml.WriteAttributeString("texcoord", "CHANNEL0");
xml.WriteStartElement("extra");
xml.WriteStartElement("technique");
xml.WriteAttributeString("profile", "MAYA");
xml.WriteStartElement("wrapV");
xml.WriteAttributeString("sid", "wrapV0");
xml.WriteString("TRUE");
xml.WriteEndElement();
xml.WriteStartElement("wrapU");
xml.WriteAttributeString("sid", "wrapU0");
xml.WriteString("TRUE");
xml.WriteEndElement();
xml.WriteStartElement("blend_mode");
xml.WriteString("ADD");
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteEndElement();
}
private void ExportCollada_Texture(XmlWriter xml, Kn5Texture texture) {
xml.WriteStartElement("image");
xml.WriteAttributeStringSafe("id", $"{texture.Name}-image");
xml.WriteAttributeStringSafe("name", texture.Name);
xml.WriteStartElement("init_from");
xml.WriteString("file://texture/" + texture.Name);
xml.WriteEndElement();
xml.WriteEndElement();
}
