internal static void ToGlb(this Solid solid, string path)
{
var gltf = new Gltf();
var asset = new Asset();
asset.Version = "2.0";
asset.Generator = "hypar-gltf";
gltf.Asset = asset;
var root = new Node();
root.Translation = new[] { 0.0f, 0.0f, 0.0f };
root.Scale = new[] { 1.0f, 1.0f, 1.0f };
// Set Z up by rotating -90d around the X Axis
var q = new Quaternion(new Vector3(1, 0, 0), -Math.PI / 2);
root.Rotation = new[] {
(float)q.X, (float)q.Y, (float)q.Z, (float)q.W
};
gltf.Nodes = new[] { root };
gltf.Scene = 0;
var scene = new Scene();
scene.Nodes = new[] { 0 };
gltf.Scenes = new[] { scene };
gltf.ExtensionsUsed = new[] { "KHR_materials_pbrSpecularGlossiness" };
var materials = gltf.AddMaterials(new[] { BuiltInMaterials.Default, BuiltInMaterials.Edges, BuiltInMaterials.EdgesHighlighted });
var buffer = new List <byte>();
var mesh = new Elements.Geometry.Mesh();
solid.Tessellate(ref mesh);
gltf.AddTriangleMesh("mesh", buffer, mesh.Vertices.ToArray(), mesh.Normals.ToArray(),
mesh.Indices.ToArray(), mesh.VertexColors.ToArray(),
mesh.VMin, mesh.VMax, mesh.NMin, mesh.NMax, mesh.CMin, mesh.CMax,
mesh.IMin, mesh.IMax, materials[BuiltInMaterials.Default.Name], null, null);
var edgeCount = 0;
var vertices = new List <Vector3>();
var verticesHighlighted = new List <Vector3>();
foreach (var e in solid.Edges.Values)
{
if (e.Left.Loop == null || e.Right.Loop == null)
{
verticesHighlighted.AddRange(new[] { e.Left.Vertex.Point, e.Right.Vertex.Point });
}
else
{
vertices.AddRange(new[] { e.Left.Vertex.Point, e.Right.Vertex.Point });
}
edgeCount++;
}
if (vertices.Count > 0)
{
// Draw standard edges
var vBuff = vertices.ToArray().ToArray();
var vCount = vertices.Count;
// var indices = Enumerable.Range(0, vCount).Select(i => (ushort)i).ToArray();
var indices = new List <ushort>();
for (var i = 0; i < vertices.Count; i += 2)
{
indices.Add((ushort)i);
indices.Add((ushort)(i + 1));
}
var bbox = new BBox3(vertices.ToArray());
gltf.AddLineLoop($"edge_{edgeCount}", buffer, vBuff, indices.ToArray(), bbox.Min.ToArray(), bbox.Max.ToArray(), 0, (ushort)(vCount - 1), materials[BuiltInMaterials.Edges.Name], MeshPrimitive.ModeEnum.LINES, null);
}
if (verticesHighlighted.Count > 0)
{
// Draw highlighted edges
var vBuff = vertices.ToArray().ToArray();
var vCount = vertices.Count;
var indices = new List <ushort>();
for (var i = 0; i < vertices.Count; i += 2)
{
indices.Add((ushort)i);
indices.Add((ushort)(i + 1));
}
var bbox = new BBox3(vertices.ToArray());
gltf.AddLineLoop($"edge_{edgeCount}", buffer, vBuff, indices.ToArray(), bbox.Min.ToArray(), bbox.Max.ToArray(), 0, (ushort)(vCount - 1), materials[BuiltInMaterials.EdgesHighlighted.Name], MeshPrimitive.ModeEnum.LINES, null);
}
var buff = new glTFLoader.Schema.Buffer();
buff.ByteLength = buffer.Count;
gltf.Buffers = new[] { buff };
if (File.Exists(path))
{
File.Delete(path);
}
gltf.SaveBinaryModel(buffer.ToArray(), path);
}
internal static void ToGlb(this Solid solid, string path)
{
var gltf = new Gltf();
var asset = new Asset();
asset.Version = "2.0";
asset.Generator = "hypar-gltf";
gltf.Asset = asset;
var root = new Node();
root.Translation = new[] { 0.0f, 0.0f, 0.0f };
root.Scale = new[] { 1.0f, 1.0f, 1.0f };
// Set Z up by rotating -90d around the X Axis
var q = new Quaternion(new Vector3(1, 0, 0), -Math.PI / 2);
root.Rotation = new[] {
(float)q.X, (float)q.Y, (float)q.Z, (float)q.W
};
gltf.Nodes = new[] { root };
gltf.Scene = 0;
var scene = new Scene();
scene.Nodes = new[] { 0 };
gltf.Scenes = new[] { scene };
gltf.ExtensionsUsed = new[] { "KHR_materials_pbrSpecularGlossiness" };
var materials = gltf.AddMaterials(new[] { BuiltInMaterials.Default, BuiltInMaterials.Edges, BuiltInMaterials.EdgesHighlighted });
var buffer = new List <byte>();
var mesh = new Elements.Geometry.Mesh();
solid.Tessellate(ref mesh);
byte[] vertexBuffer;
byte[] normalBuffer;
byte[] indexBuffer;
byte[] colorBuffer;
double[] vmin; double[] vmax;
double[] nmin; double[] nmax;
float[] cmin; float[] cmax;
ushort imin; ushort imax;
mesh.GetBuffers(out vertexBuffer, out indexBuffer, out normalBuffer, out colorBuffer,
out vmax, out vmin, out nmin, out nmax, out cmin,
out cmax, out imin, out imax);
var bufferViews = new List <BufferView>();
var accessors = new List <Accessor>();
gltf.AddTriangleMesh("mesh", buffer, bufferViews, accessors, vertexBuffer, normalBuffer,
indexBuffer, colorBuffer, vmin, vmax, nmin, nmax,
imin, imax, materials[BuiltInMaterials.Default.Name], cmin, cmax, null, null);
var edgeCount = 0;
var vertices = new List <Vector3>();
var verticesHighlighted = new List <Vector3>();
foreach (var e in solid.Edges.Values)
{
if (e.Left.Loop == null || e.Right.Loop == null)
{
verticesHighlighted.AddRange(new[] { e.Left.Vertex.Point, e.Right.Vertex.Point });
}
else
{
vertices.AddRange(new[] { e.Left.Vertex.Point, e.Right.Vertex.Point });
}
edgeCount++;
}
if (vertices.Count > 0)
{
// Draw standard edges
AddLines(100000, vertices.ToArray(), gltf, materials[BuiltInMaterials.Edges.Name], buffer, bufferViews, accessors);
}
if (verticesHighlighted.Count > 0)
{
// Draw highlighted edges
AddLines(100001, verticesHighlighted.ToArray(), gltf, materials[BuiltInMaterials.EdgesHighlighted.Name], buffer, bufferViews, accessors);
}
var buff = new glTFLoader.Schema.Buffer();
buff.ByteLength = buffer.Count;
gltf.Buffers = new[] { buff };
gltf.BufferViews = bufferViews.ToArray();
gltf.Accessors = accessors.ToArray();
if (File.Exists(path))
{
File.Delete(path);
}
gltf.SaveBinaryModel(buffer.ToArray(), path);
}