void SubmitLines(RetainedGizmos gizmos, ulong hash)
{
// Unity only supports 65535 vertices per mesh. 65532 used because MaxLineEndPointsPerBatch needs to be even.
const int MaxLineEndPointsPerBatch = 65532 / 2;
int batches = (lines.Count + MaxLineEndPointsPerBatch - 1) / MaxLineEndPointsPerBatch;
for (int batch = 0; batch < batches; batch++)
{
int startIndex = MaxLineEndPointsPerBatch * batch;
int endIndex = Mathf.Min(startIndex + MaxLineEndPointsPerBatch, lines.Count);
int lineEndPointCount = endIndex - startIndex;
UnityEngine.Assertions.Assert.IsTrue(lineEndPointCount % 2 == 0);
// Use pooled lists to avoid excessive allocations
var vertices = ListPool <Vector3> .Claim(lineEndPointCount *2);
var colors = ListPool <Color32> .Claim(lineEndPointCount *2);
var normals = ListPool <Vector3> .Claim(lineEndPointCount *2);
var uv = ListPool <Vector2> .Claim(lineEndPointCount *2);
var tris = ListPool <int> .Claim(lineEndPointCount *3);
// Loop through each endpoint of the lines
// and add 2 vertices for each
for (int j = startIndex; j < endIndex; j++)
{
var vertex = (Vector3)lines[j];
vertices.Add(vertex);
vertices.Add(vertex);
var color = (Color32)lineColors[j];
colors.Add(color);
colors.Add(color);
uv.Add(new Vector2(0, 0));
uv.Add(new Vector2(1, 0));
}
// Loop through each line and add
// one normal for each vertex
for (int j = startIndex; j < endIndex; j += 2)
{
var lineDir = (Vector3)(lines[j + 1] - lines[j]);
// Store the line direction in the normals.
// A line consists of 4 vertices. The line direction will be used to
// offset the vertices to create a line with a fixed pixel thickness
normals.Add(lineDir);
normals.Add(lineDir);
normals.Add(lineDir);
normals.Add(lineDir);
}
// Setup triangle indices
// A triangle consists of 3 indices
// A line (4 vertices) consists of 2 triangles, so 6 triangle indices
for (int j = 0, v = 0; j < lineEndPointCount * 3; j += 6, v += 4)
{
// First triangle
tris.Add(v + 0);
tris.Add(v + 1);
tris.Add(v + 2);
// Second triangle
tris.Add(v + 1);
tris.Add(v + 3);
tris.Add(v + 2);
}
var mesh = gizmos.GetMesh();
// Set all data on the mesh
mesh.SetVertices(vertices);
mesh.SetTriangles(tris, 0);
mesh.SetColors(colors);
mesh.SetNormals(normals);
mesh.SetUVs(0, uv);
// Upload all data and mark the mesh as unreadable
mesh.UploadMeshData(true);
// Release the lists back to the pool
ListPool <Vector3> .Release(ref vertices);
ListPool <Color32> .Release(ref colors);
ListPool <Vector3> .Release(ref normals);
ListPool <Vector2> .Release(ref uv);
ListPool <int> .Release(ref tris);
gizmos.meshes.Add(new MeshWithHash {
hash = hash, mesh = mesh, lines = true
});
gizmos.existingHashes.Add(hash);
}
}
// Token: 0x06002960 RID: 10592 RVA: 0x001C0BE4 File Offset: 0x001BEDE4
public static void Release(ref List <T> list)
{
ListPool <T> .Release(list);
list = null;
}