/// <summary>Updates the internal triangulated version of the path. Occurs whenever Path is set.</summary>
public void Refresh()
{
#if !NO_BLADE_RUNTIME
if (MeshSet)
{
// Do nothing.
return;
}
if (Path_ == null)
{
Mesh_ = null;
return;
}
if (Mesh_ == null)
{
// Create it now:
Mesh_ = new Mesh();
}
// Build the verts first:
int vertCount = Path_.GetVertexCount(Accuracy);
Vector3[] verts = new Vector3[vertCount];
List <int> contours = new List <int>();
int index = 0;
Path_.GetVertices(verts, null, Accuracy, 0f, 0f, 1f, ref index, contours);
// Create uv set:
Vector2[] uvs = new Vector2[vertCount];
// UV values are directly based on verts, just a little remapped.
// UV is 0-1, verts are -1 to +1. Y is also inverted (Because Unity stores textures "upside down").
for (int i = 0; i < vertCount; i++)
{
Vector3 vert = verts[i];
uvs[i] = new Vector2(
((vert.x + 1f) / 2f), // Map
((1f - vert.y) / 2f) // Map and invert
);
}
// Triangulate each contour next.
// Create triangulator:
if (Triangulator == null)
{
Triangulator = new Triangulator(null, 0, 0);
}
// Set verts:
Triangulator.Vertices = verts;
// Triangulate:
int[] tris = Triangulator.Triangulate(contours);
// Set verts etc now:
Mesh_.triangles = null;
Mesh_.vertices = verts;
Mesh_.uv = uvs;
Mesh_.triangles = tris;
// Bounds and normals aren't required, but we do need to upload it:
Mesh_.UploadMeshData(true);
#endif
}