public ModelRoot AddTerrainMesh(ModelRoot model, Triangulation triangulation, PBRTexture textures, bool doubleSided = true)
{
var indexedTriangulation = new IndexedTriangulation(triangulation);
var normals = _meshService.ComputeMeshNormals(indexedTriangulation.Positions, indexedTriangulation.Indices);
return(AddMesh(model, TERRAIN_NODE_NAME, indexedTriangulation, normals, textures, doubleSided));
}
public ModelRoot AddLine(ModelRoot model, string nodeName, IEnumerable <GeoPoint> gpxPointsElevated, Vector4 color, float trailWidthMeters)
{
var scene = model.UseScene(TERRAIN_SCENE_NAME);
var rnode = scene.FindNode(n => n.Name == nodeName);
if (rnode == null)
{
rnode = scene.CreateNode(nodeName);
}
var rmesh = rnode.Mesh = FindOrCreateMesh(model, string.Concat(nodeName, "Mesh"));
var material = model.CreateMaterial(string.Concat(nodeName, "Material"))
.WithPBRMetallicRoughness(color, null, null, 0, 0.9f)
.WithDoubleSide(true);
material.Alpha = SharpGLTF.Schema2.AlphaMode.BLEND;
var triangulation = _meshService.GenerateTriangleMesh_Line(gpxPointsElevated, trailWidthMeters);
var indexedTriangulation = new IndexedTriangulation(triangulation.positions, triangulation.indexes);
var normals = _meshService.ComputeMeshNormals(indexedTriangulation.Positions, indexedTriangulation.Indices);
// create mesh primitive
var primitive = rmesh.CreatePrimitive()
.WithVertexAccessor("POSITION", indexedTriangulation.Positions)
.WithVertexAccessor("NORMAL", normals.ToList())
.WithIndicesAccessor(PrimitiveType.TRIANGLES, indexedTriangulation.Indices);
primitive = primitive.WithMaterial(material);
return(model);
}
public ModelRoot AddLine(ModelRoot model, IEnumerable <GeoPoint> gpxPointsElevated, Vector4 vector4, float trailWidthMeters)
{
var scene = model.UseScene(TERRAIN_SCENE_NAME);
var rnode = scene.FindNode(n => n.Name == TERRAIN_NODE_NAME);
var rmesh = rnode.Mesh = FindOrCreateMesh(model, TERRAIN_MESH_NAME);
var material = model.CreateMaterial("Line")
.WithPBRMetallicRoughness(vector4, null, null, 1, 0.1f)
.WithDoubleSide(true);
var triangulation = _meshService.GenerateTriangleMesh_Line(gpxPointsElevated, trailWidthMeters);
var indexedTriangulation = new IndexedTriangulation(triangulation.positions, triangulation.indexes);
var normals = _meshService.ComputeNormals(indexedTriangulation.Positions, indexedTriangulation.Indices);
// create mesh primitive
var primitive = rmesh.CreatePrimitive()
.WithVertexAccessor("POSITION", indexedTriangulation.Positions)
.WithVertexAccessor("NORMAL", normals.ToList())
.WithIndicesAccessor(PrimitiveType.TRIANGLES, indexedTriangulation.Indices);
primitive = primitive.WithMaterial(material);
return(model);
}
public ModelRoot AddMesh(ModelRoot model, string nodeName, IndexedTriangulation indexedTriangulation, IEnumerable <Vector3> normals, PBRTexture textures, bool doubleSided = true)
{
// create a basic scene
model = model ?? CreateNewModel();
var rnode = model.LogicalScenes.First()?.FindNode(n => n.Name == nodeName);
if (rnode == null)
{
rnode = model.LogicalScenes.First().CreateNode(nodeName);
}
var rmesh = rnode.Mesh = FindOrCreateMesh(model, string.Concat(rnode.Name, "Mesh"));
var material = model.CreateMaterial(string.Concat(nodeName, "Material"))
.WithPBRMetallicRoughness(Vector4.One, textures?.BaseColorTexture?.FilePath, null, 0, 1)
.WithDoubleSide(doubleSided);
if (textures != null && textures.NormalTexture != null)
{
material.WithChannelTexture("NORMAL", 0, textures.NormalTexture.FilePath);
}
// create mesh primitive
MeshPrimitive primitive = rmesh.CreatePrimitive();
if (indexedTriangulation.Colors != null && indexedTriangulation.Colors.Any())
{
primitive = primitive.WithVertexAccessor("POSITION", indexedTriangulation.Positions);
primitive = primitive.WithVertexAccessor("COLOR_0", indexedTriangulation.Colors);
}
else
{
primitive = primitive.WithVertexAccessor("POSITION", indexedTriangulation.Positions);
}
if (normals != null)
{
primitive = primitive.WithVertexAccessor("NORMAL", normals.ToList());
}
primitive = primitive.WithIndicesAccessor(PrimitiveType.TRIANGLES, indexedTriangulation.Indices);
if (textures != null && textures.TextureCoordSets == null)
{
(Vector3 Min, Vector3 Max)coordBounds = CalculateBounds(indexedTriangulation.Positions);
textures.TextureCoordSets = indexedTriangulation.Positions.Select(pos => new Vector2(
MathHelper.Map(coordBounds.Min.X, coordBounds.Max.X, 0, 1, pos.X, true)
, MathHelper.Map(coordBounds.Min.Z, coordBounds.Max.Z, 0, 1, pos.Z, true)
));
primitive = primitive
.WithVertexAccessor("TEXCOORD_0", textures.TextureCoordSets.ToList());
}
primitive = primitive.WithMaterial(material);
return(model);
}
public ModelRoot CloneWithMesh(ModelRoot inputModel, IndexedTriangulation indexedTriangulation)
{
var model = CreateNewModel();
var rnode = model.LogicalScenes.First().CreateNode(TERRAIN_NODE_NAME);
var rmesh = rnode.Mesh = FindOrCreateMesh(model, string.Concat(rnode.Name, "Mesh"));
MaterialBuilder b = new MaterialBuilder();
inputModel.LogicalMaterials.First().CopyTo(b);
var material = Toolkit.CreateMaterial(model, b);
// create mesh primitive
MeshPrimitive primitive = rmesh.CreatePrimitive();
if (indexedTriangulation.Colors != null && indexedTriangulation.Colors.Any())
{
primitive = primitive.WithVertexAccessor("POSITION", indexedTriangulation.Positions);
primitive = primitive.WithVertexAccessor("COLOR_0", indexedTriangulation.Colors);
}
else
{
primitive = primitive.WithVertexAccessor("POSITION", indexedTriangulation.Positions);
}
var normals = _meshService.ComputeMeshNormals(indexedTriangulation.Positions, indexedTriangulation.Indices);
primitive = primitive.WithVertexAccessor("NORMAL", normals.ToList());
primitive = primitive.WithIndicesAccessor(PrimitiveType.TRIANGLES, indexedTriangulation.Indices);
(Vector3 Min, Vector3 Max)coordBounds = CalculateBounds(indexedTriangulation.Positions);
var coordSets = indexedTriangulation.Positions.Select(pos => new Vector2(
MathHelper.Map(coordBounds.Min.X, coordBounds.Max.X, 0, 1, pos.X, true)
, MathHelper.Map(coordBounds.Min.Z, coordBounds.Max.Z, 0, 1, pos.Z, true)
));
primitive = primitive
.WithVertexAccessor("TEXCOORD_0", coordSets.ToList());
primitive = primitive.WithMaterial(material);
return(model);
}
public ModelRoot CreateTerrainMesh(HeightMap heightMap, GenOptions options = GenOptions.None, Matrix4x4 vectorTransform = default, bool doubleSided = true, float meshReduceFactor = 0.5f)
{
Triangulation triangulation = default;
if (options.HasFlag(GenOptions.BoxedBaseElevation0))
{
triangulation = _meshService.GenerateTriangleMesh_Boxed(heightMap, BoxBaseThickness.FixedElevation, 0);
}
else if (options.HasFlag(GenOptions.BoxedBaseElevationMin))
{
triangulation = _meshService.GenerateTriangleMesh_Boxed(heightMap, BoxBaseThickness.FromMinimumPoint, 5);
}
else
{
triangulation = _meshService.TriangulateHeightMap(heightMap);
}
triangulation = _meshReducer.Decimate(triangulation, meshReduceFactor);
// create a basic scene
var model = CreateNewModel();
var rnode = model.LogicalScenes.First()?.FindNode(n => n.Name == TERRAIN_NODE_NAME);
var rmesh = rnode.Mesh = model.CreateMesh(TERRAIN_MESH_NAME);
var material = model.CreateMaterial(string.Concat(TERRAIN_MESH_NAME, "Material"))
.WithPBRMetallicRoughness()
.WithDoubleSide(doubleSided);
var indexedTriangulation = new IndexedTriangulation(triangulation, vectorTransform);
// create mesh primitive
var primitive = rmesh.CreatePrimitive()
.WithVertexAccessor("POSITION", indexedTriangulation.Positions);
if (options.HasFlag(GenOptions.Normals))
{
var normals = _meshService.ComputeMeshNormals(indexedTriangulation.Positions, indexedTriangulation.Indices);
primitive = primitive.WithVertexAccessor("NORMAL", normals.ToList());
}
primitive = primitive.WithIndicesAccessor(PrimitiveType.TRIANGLES, indexedTriangulation.Indices)
.WithMaterial(material);
return(model);
}
public ModelRoot AddTerrainMesh(ModelRoot model, Triangulation triangulation, PBRTexture textures)
{
// create a basic scene
model = model ?? CreateNewModel();
var rnode = model.LogicalScenes.First()?.FindNode(n => n.Name == TERRAIN_NODE_NAME);
var rmesh = rnode.Mesh = FindOrCreateMesh(model, TERRAIN_MESH_NAME);
var material = model.CreateMaterial("Default")
.WithPBRMetallicRoughness(Vector4.One, textures?.BaseColorTexture?.FilePath, null, 0, 1)
.WithDoubleSide(true);
if (textures != null && textures.NormalTexture != null)
{
material.WithChannelTexture("NORMAL", 0, textures.NormalTexture.FilePath);
}
var indexedTriangulation = new IndexedTriangulation(triangulation);
var normals = _meshService.ComputeNormals(indexedTriangulation.Positions, indexedTriangulation.Indices);
// create mesh primitive
var primitive = rmesh.CreatePrimitive()
.WithVertexAccessor("POSITION", indexedTriangulation.Positions)
.WithVertexAccessor("NORMAL", normals.ToList())
.WithIndicesAccessor(PrimitiveType.TRIANGLES, indexedTriangulation.Indices);
if (textures != null && textures.TextureCoordSets == null)
{
(Vector3 Min, Vector3 Max)coordBounds = CalculateBounds(indexedTriangulation.Positions);
textures.TextureCoordSets = indexedTriangulation.Positions.Select(pos => new Vector2(
MathHelper.Map(coordBounds.Min.X, coordBounds.Max.X, 0, 1, pos.X, true)
, MathHelper.Map(coordBounds.Min.Z, coordBounds.Max.Z, 0, 1, pos.Z, true)
));
primitive = primitive
.WithVertexAccessor("TEXCOORD_0", textures.TextureCoordSets.ToList());
}
primitive = primitive.WithMaterial(material);
return(model);
}
