private void CreateQuadGridManifold(bool generate = true)
{
var surface = surfaceOutputSlot.GetAsset <RectangularQuadGrid>();
if (surface == null || !generate && ReferenceEquals(surface, surfaceOutputSlot.persistedAsset))
{
surface = surfaceOutputSlot.SetAsset(CreateInstance <RectangularQuadGrid>(), false);
}
ResetSurface(surface, origin, Quaternion.Euler(rotation), false, size);
if (generate)
{
Vector3[] vertexPositionsArray;
var topology = surface.CreateManifold(out vertexPositionsArray);
topologyOutputSlot.SetAsset(topology);
surface.topology = topologyOutputSlot.GetAsset <Topology>();
surfaceOutputSlot.Persist();
vertexPositionsOutputSlot.SetAsset(PositionalVertexAttribute.Create(surfaceOutputSlot.GetAsset <Surface>(), vertexPositionsArray));
}
}
public override IEnumerator BeginGeneration()
{
var surface = surfaceOutputSlot.GetAsset <SphericalSurface>();
if (surface == null)
{
surface = surfaceOutputSlot.SetAsset(CreateInstance <SphericalSurface>(), false);
}
surface.Reset(primaryPole, equatorialPole, radius, isInverted);
Topology topology;
Vector3[] vertexPositions;
switch (sphericalPolyhedron)
{
case SphericalPolyhedrons.Tetrahedron:
SphericalManifoldUtility.CreateTetrahedron(surface, out topology, out vertexPositions);
break;
case SphericalPolyhedrons.Cube:
SphericalManifoldUtility.CreateCube(surface, out topology, out vertexPositions);
break;
case SphericalPolyhedrons.Octahedron:
SphericalManifoldUtility.CreateOctahedron(surface, out topology, out vertexPositions);
break;
case SphericalPolyhedrons.Dodecahedron:
if (subdivisionDegree == 0)
{
SphericalManifoldUtility.CreateDodecahedron(surface, out topology, out vertexPositions);
}
else
{
SphericalManifoldUtility.CreateIcosahedron(surface, out topology, out vertexPositions);
}
break;
case SphericalPolyhedrons.Icosahedron:
SphericalManifoldUtility.CreateIcosahedron(surface, out topology, out vertexPositions);
break;
default:
throw new System.NotImplementedException();
}
SphericalManifoldUtility.Subdivide(surface, topology, vertexPositions.AsVertexAttribute(), subdivisionDegree, out topology, out vertexPositions);
var alreadyDual = sphericalPolyhedron == SphericalPolyhedrons.Dodecahedron && subdivisionDegree != 0;
if (useDualPolyhedron != alreadyDual)
{
SphericalManifoldUtility.MakeDual(surface, topology, ref vertexPositions);
}
surfaceOutputSlot.Persist();
topologyOutputSlot.SetAsset(topology);
vertexPositionsOutputSlot.SetAsset(Vector3VertexAttribute.Create(vertexPositions).SetName("Vertex Positions"));
yield break;
}