public Gltf(string name, CSkelMeshLod lod, List <CSkelMeshBone> bones, List <MaterialExporter>?materialExports)
{
var mesh = new MeshBuilder <VERTEX, VertexColorXTextureX, VertexJoints4>(name);
for (var i = 0; i < lod.Sections.Value.Length; i++)
{
ExportSkelMeshSections(i, lod, lod.Sections.Value[i], materialExports, mesh);
}
var sceneBuilder = new SceneBuilder();
var armatureNodeBuilder = new NodeBuilder(name + ".ao");
var armature = CreateGltfSkeleton(bones, armatureNodeBuilder);
sceneBuilder.AddSkinnedMesh(mesh, Matrix4x4.Identity, armature);
Model = sceneBuilder.ToGltf2();
}
public void SaveToGltf2(string path, string texturePath)
{
var textures = new List <(string, Texture)>();
var converter = new ImageConverter(texturePath);
var scene = new SceneBuilder();
// var materials = new DictionaryEntry();
var materials = new MaterialBuilder[Materials.Length];
var skin = CreateSkin();
int meshId = 0;
foreach (var mesh in Meshes)
{
// Console.WriteLine("Process mesh " + meshId);
int counter = 0;
foreach (var submesh in mesh.Submeshes)
{
var mat = materials[submesh.Material.Id] ?? InitializeMaterial(submesh.Material, materials, converter);
materials[submesh.Material.Id] = mat;
if (submesh.Vertices.FirstOrDefault().BoneIndices != null)
{
var glbMesh = new MeshBuilder <VertexPositionNormal, VertexTexture1, VertexJoints4>($"{submesh.Name}");
var primitive = glbMesh.UsePrimitive(mat);
var vertices = submesh.Vertices
.Select(v => new VertexBuilder <VertexPositionNormal, VertexTexture1, VertexJoints4>(
new VertexPositionNormal(v.Position, v.Normal),
new VertexTexture1(new Vector2(v.Uv0.X, 1 - v.Uv0.Y)),
new VertexJoints4(
(v.BoneIndices[0], v.BoneWeights[0]),
(v.BoneIndices[1], v.BoneWeights[1]),
(v.BoneIndices[2], v.BoneWeights[2]),
(v.BoneIndices[3], v.BoneWeights[3])
)
)).ToArray();
var t = submesh.Triangles;
for (int i = 0; i < t.GetLength(0); i++)
{
primitive.AddTriangle(vertices[t[i, 0]], vertices[t[i, 1]], vertices[t[i, 2]]);
}
scene.AddSkinnedMesh(glbMesh, null, Matrix4x4.Identity, skin);
}
else
{
var glbMesh = new MeshBuilder <VertexPositionNormal, VertexTexture1, VertexEmpty>($"{submesh.Name}");
var primitive = glbMesh.UsePrimitive(mat);
var vertices = submesh.Vertices
.Select(v => new VertexBuilder <VertexPositionNormal, VertexTexture1, VertexEmpty>(
new VertexPositionNormal(v.Position, v.Normal),
new VertexTexture1(new Vector2(v.Uv0.X, 1 - v.Uv0.Y))
)).ToArray();
var t = submesh.Triangles;
for (int i = 0; i < t.GetLength(0); i++)
{
primitive.AddTriangle(vertices[t[i, 0]], vertices[t[i, 1]], vertices[t[i, 2]]);
}
scene.AddRigidMesh(glbMesh, null, submesh.Transform);
}
}
meshId++;
}
// Console.WriteLine("Save...");
var gltf2 = scene.ToGltf2();
// Fix skin
var firstSkin = gltf2.LogicalSkins.FirstOrDefault();
foreach (var node in gltf2.LogicalNodes)
{
if (node.Skin != null)
{
node.Skin = firstSkin;
}
}
// Fix texture naming (sadl, very inefficient...)
foreach (var tex in gltf2.LogicalTextures)
{
var name = converter.GetName(tex.PrimaryImage.Content.Content.ToArray());
if (name != null)
{
tex.Name = name;
tex.PrimaryImage.Name = name;
}
else
{
Console.WriteLine("Texture not found.");
}
}
gltf2.Save(Path.GetFullPath(path), new WriteSettings()
{
ImageWriting = ResourceWriteMode.Default,
Validation = ValidationMode.Strict
});
}
