public SubmeshBuilder GetSubmeshBuilder(int submeshIndex, GeometryType geomType)
{
SubmeshBuilder builder;
if (!m_submeshesBySubmeshIndex.TryGetValue(submeshIndex, out builder))
{
builder = new SubmeshBuilder(new SubmeshBuilder.AddVertexDelegate((fv) => {
if (Mode == GenerateMode.CollisionMesh)
{
// Collision meshes ignore UV, Normals, and Color data
fv.ClearUV1();
fv.ClearUV2();
fv.ClearUV3();
fv.ClearNormal();
fv.SetColor(new Vector4(1.0f, 1.0f, 1.0f, 1.0f));
}
UInt64 vertHash = fv.CalculateHash();
Dictionary <UInt64, int> submesh_verthash_to_index;
if (!m_vert_hash_by_submesh_to_index.TryGetValue(submeshIndex, out submesh_verthash_to_index))
{
submesh_verthash_to_index = new Dictionary <UInt64, int>();
m_vert_hash_by_submesh_to_index.Add(submeshIndex, submesh_verthash_to_index);
}
// For combined mesh
int combined_index;
if (!m_combined_vert_hash_to_index.TryGetValue(vertHash, out combined_index))
{
combined_index = m_combined_verts.Count;
m_combined_vert_hash_to_index.Add(vertHash, combined_index);
m_combined_verts.Add(fv);
}
// For individual submesh
int submesh_index;
if (!submesh_verthash_to_index.TryGetValue(vertHash, out submesh_index))
{
List <FaceVertex> submesh_vert_list;
if (!m_verts_by_submesh.TryGetValue(submeshIndex, out submesh_vert_list))
{
submesh_vert_list = new List <FaceVertex>();
m_verts_by_submesh.Add(submeshIndex, submesh_vert_list);
}
submesh_index = submesh_vert_list.Count;
submesh_verthash_to_index.Add(vertHash, submesh_index);
submesh_vert_list.Add(fv);
}
return(new SubmeshBuilder.AddVertexResult()
{
CombinedVertexIndex = combined_index, SubmeshVertexIndex = submesh_index
});
}), geomType);
m_submeshesBySubmeshIndex.Add(submeshIndex, builder);
}
return(builder);
}
public void GenerateMeshObject(GenerateMode generateMode, float smoothingAngleSameMaterial, float smoothingAngleDiffMaterial, List <Mesh> output_mesh_list, List <int> output_submesh_index_list)
{
if (generateMode == GenerateMode.RenderMesh)
{
//
// Building a render mesh -- materials matter
//
foreach (var kvp in m_submeshesBySubmeshIndex)
{
int submesh_index = kvp.Key;
SubmeshBuilder submesh_builder = kvp.Value;
// Sometimes we may create a submesh builder but not add any verts
// to it. This could be for no-render decal face flags.
List <FaceVertex> faceVerts;
if (!m_verts_by_submesh.TryGetValue(submesh_index, out faceVerts))
{
continue;
}
BuildMeshWorkerResult submesh_mesh_data = new BuildMeshWorkerResult();
submesh_mesh_data.Build(faceVerts);
Mesh m = new Mesh();
m.vertices = submesh_mesh_data.m_vertices;
// Needs UVs and colors
m.uv = submesh_mesh_data.m_uv1s;
if (submesh_mesh_data.m_has_uv2)
{
m.uv2 = submesh_mesh_data.m_uv2s;
}
if (submesh_mesh_data.m_has_uv3)
{
m.uv3 = submesh_mesh_data.m_uv3s;
}
if (submesh_mesh_data.m_has_translucent)
{
// Only take colors if there was a non-white color
m.colors = submesh_mesh_data.m_colors;
}
// As an optimization - each material gets its own mesh (instead of using submeshes within the mesh)
m.subMeshCount = 1;
m.SetTriangles(submesh_builder.SubmeshTriangleList, 0);
m.RecalculateNormals(smoothingAngleSameMaterial, smoothingAngleDiffMaterial, submesh_mesh_data.m_normal_lock, submesh_mesh_data.m_normals);
// Recalculate tangents (AFTER normals, as RecalculateNormals will destroy tangents)
m.RecalculateTangents();
m.RecalculateBounds();
output_mesh_list.Add(m);
output_submesh_index_list.Add(submesh_index);
}
}
else
{
//
// Building a collision mesh -- combine the verts
//
BuildMeshWorkerResult combined_mesh_data = new BuildMeshWorkerResult();
combined_mesh_data.Build(m_combined_verts);
Mesh m = new Mesh();
m.vertices = combined_mesh_data.m_vertices;
// Collision mesh is one submesh
m.subMeshCount = 1;
var all_combined_triangles = new List <int>();
foreach (var kvp in m_submeshesBySubmeshIndex)
{
int submeshIndex = kvp.Key;
if (submeshIndex < 0)
{
continue;
}
var submeshBuilder = kvp.Value;
if (submeshBuilder.GeomType == GeometryType.Portal)
{
// don't include the debug portal geometry into the collision data
continue;
}
all_combined_triangles.AddRange(submeshBuilder.CombinedTriangleList);
}
m.SetTriangles(all_combined_triangles.ToArray(), 0);
m.RecalculateNormals(smoothingAngleSameMaterial, smoothingAngleDiffMaterial, combined_mesh_data.m_normal_lock, combined_mesh_data.m_normals);
m.RecalculateBounds();
;
output_mesh_list.Add(m);
output_submesh_index_list.Add(0);
}
}
