internal static void CreateCubeControlMesh(out ControlMesh controlMesh, out Shape shape, Vector3 size)
{
size *= 0.5f;
controlMesh = new ControlMesh();
controlMesh.Vertices = new Vector3[]
{
new Vector3(-size.x, -size.y, -size.z),
new Vector3(-size.x, size.y, -size.z),
new Vector3(size.x, size.y, -size.z),
new Vector3(size.x, -size.y, -size.z),
new Vector3(-size.x, -size.y, size.z),
new Vector3(-size.x, size.y, size.z),
new Vector3(size.x, size.y, size.z),
new Vector3(size.x, -size.y, size.z)
};
controlMesh.Edges = new HalfEdge[]
{
new HalfEdge(0, 21, 0, true), // 0
new HalfEdge(0, 9, 1, true), // 1
new HalfEdge(0, 13, 2, true), // 2
new HalfEdge(0, 17, 3, true), // 3
new HalfEdge(1, 23, 7, true), // 4
new HalfEdge(1, 19, 6, true), // 5
new HalfEdge(1, 15, 5, true), // 6
new HalfEdge(1, 11, 4, true), // 7
new HalfEdge(2, 14, 1, true), // 8
new HalfEdge(2, 1, 0, true), // 9
new HalfEdge(2, 20, 4, true), // 10
new HalfEdge(2, 7, 5, true), // 11
new HalfEdge(3, 18, 2, true), // 12
new HalfEdge(3, 2, 1, true), // 13
new HalfEdge(3, 8, 5, true), // 14
new HalfEdge(3, 6, 6, true), // 15
new HalfEdge(4, 22, 3, true), // 16
new HalfEdge(4, 3, 2, true), // 17
new HalfEdge(4, 12, 6, true), // 18
new HalfEdge(4, 5, 7, true), // 19
new HalfEdge(5, 10, 0, true), // 20
new HalfEdge(5, 0, 3, true), // 21
new HalfEdge(5, 16, 7, true), // 22
new HalfEdge(5, 4, 4, true) // 23
};
controlMesh.Polygons = new Polygon[]
{
// left/right
new Polygon(new int[] { 0, 1, 2, 3 }, 0), // 0
new Polygon(new int[] { 7, 4, 5, 6 }, 1), // 1
// front/back
new Polygon(new int[] { 9, 10, 11, 8 }, 2), // 2
new Polygon(new int[] { 13, 14, 15, 12 }, 3), // 3
// top/down
new Polygon(new int[] { 16, 17, 18, 19 }, 4), // 4
new Polygon(new int[] { 20, 21, 22, 23 }, 5) // 5
};
shape = new Shape();
shape.Surfaces = new Surface[6];
shape.Surfaces[0].TexGenIndex = 0;
shape.Surfaces[1].TexGenIndex = 1;
shape.Surfaces[2].TexGenIndex = 2;
shape.Surfaces[3].TexGenIndex = 3;
shape.Surfaces[4].TexGenIndex = 4;
shape.Surfaces[5].TexGenIndex = 5;
shape.Surfaces[0].Plane = GeometryUtility.CalcPolygonPlane(controlMesh, 0);
shape.Surfaces[1].Plane = GeometryUtility.CalcPolygonPlane(controlMesh, 1);
shape.Surfaces[2].Plane = GeometryUtility.CalcPolygonPlane(controlMesh, 2);
shape.Surfaces[3].Plane = GeometryUtility.CalcPolygonPlane(controlMesh, 3);
shape.Surfaces[4].Plane = GeometryUtility.CalcPolygonPlane(controlMesh, 4);
shape.Surfaces[5].Plane = GeometryUtility.CalcPolygonPlane(controlMesh, 5);
GeometryUtility.CalculateTangents(shape.Surfaces[0].Plane.normal, out shape.Surfaces[0].Tangent, out shape.Surfaces[0].BiNormal);
GeometryUtility.CalculateTangents(shape.Surfaces[1].Plane.normal, out shape.Surfaces[1].Tangent, out shape.Surfaces[1].BiNormal);
GeometryUtility.CalculateTangents(shape.Surfaces[2].Plane.normal, out shape.Surfaces[2].Tangent, out shape.Surfaces[2].BiNormal);
GeometryUtility.CalculateTangents(shape.Surfaces[3].Plane.normal, out shape.Surfaces[3].Tangent, out shape.Surfaces[3].BiNormal);
GeometryUtility.CalculateTangents(shape.Surfaces[4].Plane.normal, out shape.Surfaces[4].Tangent, out shape.Surfaces[4].BiNormal);
GeometryUtility.CalculateTangents(shape.Surfaces[5].Plane.normal, out shape.Surfaces[5].Tangent, out shape.Surfaces[5].BiNormal);
shape.TexGens = new TexGen[6];
shape.TexGens[0].Scale = MathConstants.oneVector3;
shape.TexGens[1].Scale = MathConstants.oneVector3;
shape.TexGens[2].Scale = MathConstants.oneVector3;
shape.TexGens[3].Scale = MathConstants.oneVector3;
shape.TexGens[4].Scale = MathConstants.oneVector3;
shape.TexGens[5].Scale = MathConstants.oneVector3;
shape.TexGens[0].Color = Color.white;
shape.TexGens[1].Color = Color.white;
shape.TexGens[2].Color = Color.white;
shape.TexGens[3].Color = Color.white;
shape.TexGens[4].Color = Color.white;
shape.TexGens[5].Color = Color.white;
shape.TexGenFlags = new TexGenFlags[6];
shape.TexGenFlags[0] = TexGenFlags.None;
shape.TexGenFlags[1] = TexGenFlags.None;
shape.TexGenFlags[2] = TexGenFlags.None;
shape.TexGenFlags[3] = TexGenFlags.None;
shape.TexGenFlags[4] = TexGenFlags.None;
shape.TexGenFlags[5] = TexGenFlags.None;
shape.Materials = new Material[6];
shape.Materials[0] = CSGSettings.DefaultMaterial;
shape.Materials[1] = CSGSettings.DefaultMaterial;
shape.Materials[2] = CSGSettings.DefaultMaterial;
shape.Materials[3] = CSGSettings.DefaultMaterial;
shape.Materials[4] = CSGSettings.DefaultMaterial;
shape.Materials[5] = CSGSettings.DefaultMaterial;
//controlMesh.Validate();
ShapeUtility.CreateCutter(shape, controlMesh);
ShapeUtility.EnsureInitialized(shape);
controlMesh.IsValid = ControlMeshUtility.Validate(controlMesh, shape);
}
internal static bool CreateControlMeshFromPlanes(out ControlMesh controlMesh,
out Shape shape,
UnityEngine.Plane[] planes,
Vector3[] tangents = null,
Vector3[] binormals = null,
Material[] materials = null,
Matrix4x4[] textureMatrices = null,
TextureMatrixSpace textureMatrixSpace = TextureMatrixSpace.WorldSpace,
uint[] smoothingGroups = null,
TexGenFlags[] texGenFlags = null)
{
controlMesh = null;
shape = null;
if (planes == null)
{
Debug.LogError("The planes array is not allowed to be null");
return(false);
}
if (planes.Length < 4)
{
Debug.LogError("The planes array must have at least 4 planes");
return(false);
}
if (materials == null)
{
materials = new Material[planes.Length];
for (int i = 0; i < materials.Length; i++)
{
materials[i] = CSGSettings.DefaultMaterial;
}
}
if (planes.Length != materials.Length ||
(textureMatrices != null && planes.Length != textureMatrices.Length) ||
(tangents != null && tangents.Length != textureMatrices.Length) ||
(binormals != null && binormals.Length != textureMatrices.Length) ||
(smoothingGroups != null && smoothingGroups.Length != materials.Length))
{
Debug.LogError("All non null arrays need to be of equal length");
return(false);
}
shape = new Shape();
shape.Materials = materials;
shape.TexGenFlags = new TexGenFlags[planes.Length];
shape.Surfaces = new Surface[planes.Length];
shape.TexGens = new TexGen[planes.Length];
for (int i = 0; i < planes.Length; i++)
{
shape.Surfaces[i].Plane = new CSGPlane(planes[i].normal, -planes[i].distance);
Vector3 tangent, binormal;
if (tangents != null && binormals != null)
{
tangent = tangents[i];
binormal = binormals[i];
}
else
{
GeometryUtility.CalculateTangents(planes[i].normal, out tangent, out binormal);
}
shape.Surfaces[i].Tangent = -tangent;
shape.Surfaces[i].BiNormal = -binormal;
shape.Surfaces[i].TexGenIndex = i;
shape.TexGens[i] = new TexGen(-1);
if (smoothingGroups != null)
{
shape.TexGens[i].SmoothingGroup = smoothingGroups[i];
}
if (texGenFlags != null)
{
shape.TexGenFlags[i] = texGenFlags[i];
}
}
controlMesh = ControlMeshUtility.CreateFromShape(shape);
if (controlMesh == null || !ControlMeshUtility.Validate(controlMesh, shape))
{
return(false);
}
if (textureMatrices != null)
{
for (var i = 0; i < planes.Length; i++)
{
SurfaceUtility.AlignTextureSpaces(textureMatrices[i], textureMatrixSpace == TextureMatrixSpace.PlaneSpace, ref shape.TexGens[i], ref shape.TexGenFlags[i], ref shape.Surfaces[i]);
}
}
ShapeUtility.CreateCutter(shape, controlMesh);
return(true);
}