/// <summary>
/// ProBuilderize in-place function. You must call ToMesh() and Refresh() after
/// returning from this function, as this only creates the pb_Object and sets its
/// fields. This allows you to record the mesh and gameObject for Undo operations.
/// </summary>
/// <param name="pb"></param>
/// <param name="preserveFaces"></param>
/// <returns></returns>
public static bool ResetPbObjectWithMeshFilter(ProBuilderMesh pb, bool preserveFaces)
{
MeshFilter mf = pb.gameObject.GetComponent <MeshFilter>();
if (mf == null || mf.sharedMesh == null)
{
Log.Error(pb.name + " does not have a mesh or Mesh Filter component.");
return(false);
}
Mesh m = mf.sharedMesh;
int vertexCount = m.vertexCount;
Vector3[] m_positions = MeshUtility.GetMeshChannel <Vector3[]>(pb.gameObject, x => x.vertices);
Color[] m_colors = MeshUtility.GetMeshChannel <Color[]>(pb.gameObject, x => x.colors);
Vector2[] m_uvs = MeshUtility.GetMeshChannel <Vector2[]>(pb.gameObject, x => x.uv);
List <Vector3> verts = preserveFaces ? new List <Vector3>(m.vertices) : new List <Vector3>();
List <Color> cols = preserveFaces ? new List <Color>(m.colors) : new List <Color>();
List <Vector2> uvs = preserveFaces ? new List <Vector2>(m.uv) : new List <Vector2>();
List <Face> faces = new List <Face>();
MeshRenderer mr = pb.gameObject.GetComponent <MeshRenderer>();
if (mr == null)
{
mr = pb.gameObject.AddComponent <MeshRenderer>();
}
Material[] sharedMaterials = mr.sharedMaterials;
int mat_length = sharedMaterials.Length;
for (int n = 0; n < m.subMeshCount; n++)
{
int[] tris = m.GetTriangles(n);
for (int i = 0; i < tris.Length; i += 3)
{
int index = -1;
if (preserveFaces)
{
for (int j = 0; j < faces.Count; j++)
{
if (faces[j].distinctIndexesInternal.Contains(tris[i + 0]) ||
faces[j].distinctIndexesInternal.Contains(tris[i + 1]) ||
faces[j].distinctIndexesInternal.Contains(tris[i + 2]))
{
index = j;
break;
}
}
}
if (index > -1 && preserveFaces)
{
int len = faces[index].indexesInternal.Length;
int[] arr = new int[len + 3];
System.Array.Copy(faces[index].indexesInternal, 0, arr, 0, len);
arr[len + 0] = tris[i + 0];
arr[len + 1] = tris[i + 1];
arr[len + 2] = tris[i + 2];
faces[index].indexesInternal = arr;
}
else
{
int[] faceTris;
if (preserveFaces)
{
faceTris = new int[3]
{
tris[i + 0],
tris[i + 1],
tris[i + 2]
};
}
else
{
verts.Add(m_positions[tris[i + 0]]);
verts.Add(m_positions[tris[i + 1]]);
verts.Add(m_positions[tris[i + 2]]);
cols.Add(m_colors != null && m_colors.Length == vertexCount ? m_colors[tris[i + 0]] : Color.white);
cols.Add(m_colors != null && m_colors.Length == vertexCount ? m_colors[tris[i + 1]] : Color.white);
cols.Add(m_colors != null && m_colors.Length == vertexCount ? m_colors[tris[i + 2]] : Color.white);
uvs.Add(m_uvs[tris[i + 0]]);
uvs.Add(m_uvs[tris[i + 1]]);
uvs.Add(m_uvs[tris[i + 2]]);
faceTris = new int[3] {
i + 0, i + 1, i + 2
};
}
faces.Add(
new Face(
faceTris,
Math.Clamp(n, 0, mat_length - 1),
AutoUnwrapSettings.tile,
0, // smoothing group
-1, // texture group
-1, // element group
true // manualUV
));
}
}
}
pb.positionsInternal = verts.ToArray();
pb.texturesInternal = uvs.ToArray();
pb.facesInternal = faces.ToArray();
pb.sharedVerticesInternal = SharedVertex.GetSharedVerticesWithPositions(verts.ToArray());
pb.colorsInternal = cols.ToArray();
return(true);
}
/// <summary>
/// "ProBuilder-ize" function
/// </summary>
/// <param name="t"></param>
/// <param name="preserveFaces"></param>
/// <returns></returns>
public static ProBuilderMesh CreateMeshWithTransform(Transform t, bool preserveFaces)
{
Mesh m = t.GetComponent <MeshFilter>().sharedMesh;
Vector3[] m_vertices = MeshUtility.GetMeshChannel <Vector3[]>(t.gameObject, x => x.vertices);
Color[] m_colors = MeshUtility.GetMeshChannel <Color[]>(t.gameObject, x => x.colors);
Vector2[] m_uvs = MeshUtility.GetMeshChannel <Vector2[]>(t.gameObject, x => x.uv);
List <Vector3> verts = preserveFaces ? new List <Vector3>(m.vertices) : new List <Vector3>();
List <Color> cols = preserveFaces ? new List <Color>(m.colors) : new List <Color>();
List <Vector2> uvs = preserveFaces ? new List <Vector2>(m.uv) : new List <Vector2>();
List <Face> faces = new List <Face>();
for (int n = 0; n < m.subMeshCount; n++)
{
int[] tris = m.GetTriangles(n);
for (int i = 0; i < tris.Length; i += 3)
{
int index = -1;
if (preserveFaces)
{
for (int j = 0; j < faces.Count; j++)
{
if (faces[j].distinctIndexesInternal.Contains(tris[i + 0]) ||
faces[j].distinctIndexesInternal.Contains(tris[i + 1]) ||
faces[j].distinctIndexesInternal.Contains(tris[i + 2]))
{
index = j;
break;
}
}
}
if (index > -1 && preserveFaces)
{
int len = faces[index].indexesInternal.Length;
int[] arr = new int[len + 3];
System.Array.Copy(faces[index].indexesInternal, 0, arr, 0, len);
arr[len + 0] = tris[i + 0];
arr[len + 1] = tris[i + 1];
arr[len + 2] = tris[i + 2];
faces[index].indexesInternal = arr;
}
else
{
int[] faceTris;
if (preserveFaces)
{
faceTris = new int[3]
{
tris[i + 0],
tris[i + 1],
tris[i + 2]
};
}
else
{
verts.Add(m_vertices[tris[i + 0]]);
verts.Add(m_vertices[tris[i + 1]]);
verts.Add(m_vertices[tris[i + 2]]);
cols.Add(m_colors != null ? m_colors[tris[i + 0]] : Color.white);
cols.Add(m_colors != null ? m_colors[tris[i + 1]] : Color.white);
cols.Add(m_colors != null ? m_colors[tris[i + 2]] : Color.white);
uvs.Add(m_uvs[tris[i + 0]]);
uvs.Add(m_uvs[tris[i + 1]]);
uvs.Add(m_uvs[tris[i + 2]]);
faceTris = new int[3] {
i + 0, i + 1, i + 2
};
}
faces.Add(
new Face(
faceTris,
n,
AutoUnwrapSettings.tile,
0, // smoothing group
-1, // texture group
-1, // element group
true // manualUV
));
}
}
}
GameObject go = (GameObject)Object.Instantiate(t.gameObject);
go.GetComponent <MeshFilter>().sharedMesh = null;
ProBuilderMesh pb = go.AddComponent <ProBuilderMesh>();
pb.RebuildWithPositionsAndFaces(verts.ToArray(), faces.ToArray());
pb.colorsInternal = cols.ToArray();
pb.textures = uvs;
pb.gameObject.name = t.name;
go.transform.position = t.position;
go.transform.localRotation = t.localRotation;
go.transform.localScale = t.localScale;
pb.CenterPivot(null);
return(pb);
}