private MeshGeometryModel3D ConvertVoxelizedSolidtoObject3D(VoxelizedSolid vs)
{
if (false)
{
var ts = vs.ConvertToTessellatedSolid(
new Color(KnownColors.MediumSeaGreen)
{
Af = 0.80f
});
return(ConvertTessellatedSolidtoObject3D(ts));
}
var normalsTemplate = new[]
{
new float[] { -1, 0, 0 }, new float[] { -1, 0, 0 },
new float[] { 1, 0, 0 }, new float[] { 1, 0, 0 },
new float[] { 0, -1, 0 }, new float[] { 0, -1, 0 },
new float[] { 0, 1, 0 }, new float[] { 0, 1, 0 },
new float[] { 0, 0, -1 }, new float[] { 0, 0, -1 },
new float[] { 0, 0, 1 }, new float[] { 0, 0, 1 }
};
var coordOffsets = new[]
{
new[] { new float[] { 0, 0, 0 }, new float[] { 0, 0, 1 }, new float[] { 0, 1, 0 } },
new[] { new float[] { 0, 1, 0 }, new float[] { 0, 0, 1 }, new float[] { 0, 1, 1 } }, //x-neg
new[] { new float[] { 1, 0, 0 }, new float[] { 1, 1, 0 }, new float[] { 1, 0, 1 } },
new[] { new float[] { 1, 1, 0 }, new float[] { 1, 1, 1 }, new float[] { 1, 0, 1 } }, //x-pos
new[] { new float[] { 0, 0, 0 }, new float[] { 1, 0, 0 }, new float[] { 0, 0, 1 } },
new[] { new float[] { 1, 0, 0 }, new float[] { 1, 0, 1 }, new float[] { 0, 0, 1 } }, //y-neg
new[] { new float[] { 0, 1, 0 }, new float[] { 0, 1, 1 }, new float[] { 1, 1, 0 } },
new[] { new float[] { 1, 1, 0 }, new float[] { 0, 1, 1 }, new float[] { 1, 1, 1 } }, //y-pos
new[] { new float[] { 0, 0, 0 }, new float[] { 0, 1, 0 }, new float[] { 1, 0, 0 } },
new[] { new float[] { 1, 0, 0 }, new float[] { 0, 1, 0 }, new float[] { 1, 1, 0 } }, //z-neg
new[] { new float[] { 0, 0, 1 }, new float[] { 1, 0, 1 }, new float[] { 0, 1, 1 } },
new[] { new float[] { 1, 0, 1 }, new float[] { 1, 1, 1 }, new float[] { 0, 1, 1 } }, //z-pos
};
var positions = new Vector3Collection();
var normals = new Vector3Collection();
var lowestLevel = (int)vs.VoxelSideLengths.Length - 1;
foreach (var v in vs.Voxels()) //VoxelDiscretization.ExtraCoarse))
// var v = vs.Voxels(VoxelDiscretization.ExtraCoarse).First(); //VoxelDiscretization.ExtraCoarse))
{
if (v.Role == VoxelRoleTypes.Partial && v.Level < lowestLevel)
{
continue;
}
var neighbors = vs.GetNeighbors(v).ToList();
if (neighbors.All(n => n != null && (n.Role == VoxelRoleTypes.Full || (n.Role == VoxelRoleTypes.Partial &&
v.Level == lowestLevel))))
{
continue;
}
var x = (float)v.BottomCoordinate[0];
var y = (float)v.BottomCoordinate[1];
var z = (float)v.BottomCoordinate[2];
var s = (float)v.SideLength;
for (int i = 0; i < 12; i++)
{
// if (neighbors[i / 2] != null && neighbors[i / 2].Role == VoxelRoleTypes.Full) continue;
if (neighbors[i / 2] != null && (neighbors[i / 2].Role == VoxelRoleTypes.Full ||
(neighbors[i / 2].Role == VoxelRoleTypes.Partial && v.Level == lowestLevel)))
{
continue;
}
for (int j = 0; j < 3; j++)
{
positions.Add(new Vector3(x + coordOffsets[i][j][0] * s,
y + coordOffsets[i][j][1] * s, z + coordOffsets[i][j][2] * s));
normals.Add(new Vector3(normalsTemplate[i][0], normalsTemplate[i][1], normalsTemplate[i][2]));
}
}
}
return(new MeshGeometryModel3D
{
Material = new PhongMaterial()
{
DiffuseColor = new SharpDX.Color4(vs.SolidColor.Rf, vs.SolidColor.Gf, vs.SolidColor.Bf,
vs.SolidColor.Af)
//(float)0.75 * vs.SolidColor.Af)
},
Geometry = new HelixToolkit.Wpf.SharpDX.MeshGeometry3D
{
Positions = positions,
Indices = new IntCollection(Enumerable.Range(0, positions.Count)),
Normals = normals
}
});
}
private static Visual3D MakeModelVisual3D(VoxelizedSolid vs)
{
var positions = new Point3DCollection();
var normals = new Vector3DCollection();
var s = vs.VoxelSideLength;
for (var i = 0; i < vs.VoxelsPerSide[0]; i++)
{
for (var j = 0; j < vs.VoxelsPerSide[1]; j++)
{
for (var k = 0; k < vs.VoxelsPerSide[2]; k++)
{
if (vs[i, j, k] == 0)
{
continue;
}
if (!vs.GetNeighbors(i, j, k, out var neighbors))
{
continue;
}
var x = i * s + vs.Offset[0];
var y = j * s + vs.Offset[1];
var z = k * s + vs.Offset[2];
for (var m = 0; m < 12; m++)
{
if (neighbors[m / 2] != null)
{
continue;
}
for (var n = 0; n < 3; n++)
{
positions.Add(new Point3D(x + coordOffsets[m][n][0] * s, y + coordOffsets[m][n][1] * s,
z + coordOffsets[m][n][2] * s));
normals.Add(new Vector3D(normalsTemplate[m][0], normalsTemplate[m][1],
normalsTemplate[m][2]));
}
}
}
}
}
return(new ModelVisual3D
{
Content =
new GeometryModel3D
{
Geometry = new MeshGeometry3D
{
Positions = positions,
Normals = normals
},
Material = MaterialHelper.CreateMaterial(
new System.Windows.Media.Color
{
A = vs.SolidColor.A,
B = vs.SolidColor.B,
G = vs.SolidColor.G,
R = vs.SolidColor.R
})
}
});
}
private MeshGeometryModel3D ConvertVoxelizedSolidtoObject3D(VoxelizedSolid vs)
{
if (false)
{
var ts = vs.ConvertToTessellatedSolid(
new Color(KnownColors.MediumSeaGreen)
{
Af = 0.80f
});
return(ConvertTessellatedSolidtoObject3D(ts));
}
var normalsTemplate = new[]
{
new float[] { -1, 0, 0 }, new float[] { -1, 0, 0 },
new float[] { 1, 0, 0 }, new float[] { 1, 0, 0 },
new float[] { 0, -1, 0 }, new float[] { 0, -1, 0 },
new float[] { 0, 1, 0 }, new float[] { 0, 1, 0 },
new float[] { 0, 0, -1 }, new float[] { 0, 0, -1 },
new float[] { 0, 0, 1 }, new float[] { 0, 0, 1 }
};
var coordOffsets = new[]
{
new[] { new float[] { 0, 0, 0 }, new float[] { 0, 0, 1 }, new float[] { 0, 1, 0 } },
new[] { new float[] { 0, 1, 0 }, new float[] { 0, 0, 1 }, new float[] { 0, 1, 1 } }, //x-neg
new[] { new float[] { 1, 0, 0 }, new float[] { 1, 1, 0 }, new float[] { 1, 0, 1 } },
new[] { new float[] { 1, 1, 0 }, new float[] { 1, 1, 1 }, new float[] { 1, 0, 1 } }, //x-pos
new[] { new float[] { 0, 0, 0 }, new float[] { 1, 0, 0 }, new float[] { 0, 0, 1 } },
new[] { new float[] { 1, 0, 0 }, new float[] { 1, 0, 1 }, new float[] { 0, 0, 1 } }, //y-neg
new[] { new float[] { 0, 1, 0 }, new float[] { 0, 1, 1 }, new float[] { 1, 1, 0 } },
new[] { new float[] { 1, 1, 0 }, new float[] { 0, 1, 1 }, new float[] { 1, 1, 1 } }, //y-pos
new[] { new float[] { 0, 0, 0 }, new float[] { 0, 1, 0 }, new float[] { 1, 0, 0 } },
new[] { new float[] { 1, 0, 0 }, new float[] { 0, 1, 0 }, new float[] { 1, 1, 0 } }, //z-neg
new[] { new float[] { 0, 0, 1 }, new float[] { 1, 0, 1 }, new float[] { 0, 1, 1 } },
new[] { new float[] { 1, 0, 1 }, new float[] { 1, 1, 1 }, new float[] { 0, 1, 1 } }, //z-pos
};
var positions = new Vector3Collection();
var normals = new Vector3Collection();
var s = (float)vs.VoxelSideLength;
for (var i = 0; i < vs.VoxelsPerSide[0]; i++)
{
for (var j = 0; j < vs.VoxelsPerSide[1]; j++)
{
for (var k = 0; k < vs.VoxelsPerSide[2]; k++)
{
if (vs[i, j, k] == 0)
{
continue;
}
if (!vs.GetNeighbors(i, j, k, out var neighbors))
{
continue;
}
var x = i * s + (float)vs.Offset[0];
var y = j * s + (float)vs.Offset[1];
var z = k * s + (float)vs.Offset[2];
for (var m = 0; m < 12; m++)
{
if (neighbors[m / 2] != null)
{
continue;
}
for (var n = 0; n < 3; n++)
{
positions.Add(new Vector3(x + (coordOffsets[m][n][0] * s), y + coordOffsets[m][n][1] * s,
z + coordOffsets[m][n][2] * s));
normals.Add(new Vector3(normalsTemplate[m][0], normalsTemplate[m][1],
normalsTemplate[m][2]));
}
}
}
}
}
return(new MeshGeometryModel3D
{
Material = new PhongMaterial()
{
DiffuseColor = new SharpDX.Color4(vs.SolidColor.Rf, vs.SolidColor.Gf, vs.SolidColor.Bf,
vs.SolidColor.Af)
//(float)0.75 * vs.SolidColor.Af)
},
Geometry = new HelixToolkit.Wpf.SharpDX.MeshGeometry3D
{
Positions = positions,
Indices = new IntCollection(Enumerable.Range(0, positions.Count)),
Normals = normals
}
});
}