private async Task CreateData()
{
package = new Printing3D3MFPackage();
var model = new Printing3DModel();
model.Unit = Printing3DModelUnit.Millimeter;
var mesh = new Printing3DMesh();
// save vertices
await GetVerticesAsync(mesh);
// save indices
await GetIndicesAsync(mesh);
// save material indices
await GetMaterialIndicesAsync(mesh);
// to make sure we don't use the same byte array from Unity
if (pngBytes != null)
{
// texture2Coord Group
var tex2CoordGroup = new Printing3DTexture2CoordMaterialGroup(groupId);
// save texture coords
for (int i = 0; i < uvPrint.Length / 2; i++)
{
var tex2CoordMaterial = new Printing3DTexture2CoordMaterial();
tex2CoordMaterial.U = uvPrint[i * 2];
tex2CoordMaterial.V = uvPrint[i * 2 + 1];
tex2CoordGroup.Texture2Coords.Add(tex2CoordMaterial);
}
var copyPngBytes = new byte[pngBytes.Length];
pngBytes.CopyTo(copyPngBytes, 0);
var randomAccessStream = new InMemoryRandomAccessStream();
await randomAccessStream.WriteAsync(copyPngBytes.AsBuffer());
randomAccessStream.Seek(0);
var texture = new Printing3DModelTexture();
Printing3DTextureResource texResource = new Printing3DTextureResource();
texResource.Name = "/3D/Texture/skeleton.png";
texResource.TextureData = new MyRandomAccessStream(randomAccessStream);
package.Textures.Add(texResource);
// add metadata about the texture
model.Metadata.Add("tex" + groupId, "/3D/Texture/skeleton.png");
model.Material.Texture2CoordGroups.Add(tex2CoordGroup);
}
else
{
// put color material into material group
var newColor = Windows.UI.Color.FromArgb(a, r, g, b);
var colrMat = new Printing3DColorMaterial();
colrMat.Color = newColor;
var colorGroup = new Printing3DColorMaterialGroup(groupId);
colorGroup.Colors.Add(colrMat);
model.Material.ColorGroups.Add(colorGroup);
}
model.Meshes.Add(mesh);
Printing3DComponent component = new Printing3DComponent();
component.Mesh = mesh;
model.Components.Add(component);
var componentWithMatrix = new Printing3DComponentWithMatrix();
componentWithMatrix.Component = component;
componentWithMatrix.Matrix = System.Numerics.Matrix4x4.Identity;
model.Build.Components.Add(componentWithMatrix);
await package.SaveModelToPackageAsync(model);
var modelStream = package.ModelPart;
package.ModelPart = await FixTextureContentType(modelStream);
// save to file and easy to debug
// var stream = await package.SaveAsync();
// await SaveStreamTo3MF(stream);
}
private async Task CreateData()
{
package = new Printing3D3MFPackage();
var model = new Printing3DModel();
model.Unit = Printing3DModelUnit.Millimeter;
var mesh = new Printing3DMesh();
// save vertices
await GetVerticesAsync(mesh);
// save indices
await GetIndicesAsync(mesh);
// save material indices
await GetMaterialIndicesAsync(mesh);
// to make sure we don't use the same byte array from Unity
if (pngBytes != null)
{
// texture2Coord Group
var tex2CoordGroup = new Printing3DTexture2CoordMaterialGroup(groupId);
// save texture coords
for (int i = 0; i < uvPrint.Length / 2; i++)
{
var tex2CoordMaterial = new Printing3DTexture2CoordMaterial();
tex2CoordMaterial.U = uvPrint[i * 2];
tex2CoordMaterial.V = uvPrint[i * 2 + 1];
tex2CoordGroup.Texture2Coords.Add(tex2CoordMaterial);
}
var copyPngBytes = new byte[pngBytes.Length];
pngBytes.CopyTo(copyPngBytes, 0);
var randomAccessStream = new InMemoryRandomAccessStream();
await randomAccessStream.WriteAsync(copyPngBytes.AsBuffer());
randomAccessStream.Seek(0);
var texture = new Printing3DModelTexture();
Printing3DTextureResource texResource = new Printing3DTextureResource();
texResource.Name = "/3D/Texture/skeleton.png";
texResource.TextureData = new MyRandomAccessStream(randomAccessStream);
package.Textures.Add(texResource);
// add metadata about the texture
model.Metadata.Add("tex" + groupId, "/3D/Texture/skeleton.png");
model.Material.Texture2CoordGroups.Add(tex2CoordGroup);
}
else
{
// put color material into material group
var newColor = Windows.UI.Color.FromArgb(a, r, g, b);
var colrMat = new Printing3DColorMaterial();
colrMat.Color = newColor;
var colorGroup = new Printing3DColorMaterialGroup(groupId);
colorGroup.Colors.Add(colrMat);
model.Material.ColorGroups.Add(colorGroup);
}
model.Meshes.Add(mesh);
Printing3DComponent component = new Printing3DComponent();
component.Mesh = mesh;
model.Components.Add(component);
var componentWithMatrix = new Printing3DComponentWithMatrix();
componentWithMatrix.Component = component;
componentWithMatrix.Matrix = System.Numerics.Matrix4x4.Identity;
model.Build.Components.Add(componentWithMatrix);
await package.SaveModelToPackageAsync(model);
var modelStream = package.ModelPart;
package.ModelPart = await FixTextureContentType(modelStream);
// save to file and easy to debug
// var stream = await package.SaveAsync();
// await SaveStreamTo3MF(stream);
}
private async Task <bool> CreateData()
{
//<SnippetInitClasses>
var localPackage = new Printing3D3MFPackage();
var model = new Printing3DModel();
// specify scaling units for model data
model.Unit = Printing3DModelUnit.Millimeter;
//</SnippetInitClasses>
// create new mesh on model
var mesh = new Printing3DMesh();
// create vertices on the mesh
await this.GetVerticesAsync(mesh);
// create triangles on the mesh
await SetTriangleIndicesAsync(mesh);
//<SnippetMeshAdd>
// add the mesh to the model
model.Meshes.Add(mesh);
//</SnippetMeshAdd>
// create material indices
await SetMaterialIndicesAsync(mesh);
//<SnippetBaseMaterialGroup>
// add material group
// all material indices need to start from 1: 0 is a reserved id
// create new base materialgroup with id = 1
var baseMaterialGroup = new Printing3DBaseMaterialGroup(1);
// create color objects
// 'A' should be 255 if alpha = 100%
var darkBlue = Windows.UI.Color.FromArgb(255, 20, 20, 90);
var orange = Windows.UI.Color.FromArgb(255, 250, 120, 45);
var teal = Windows.UI.Color.FromArgb(255, 1, 250, 200);
// create new ColorMaterials, assigning color objects
var colrMat = new Printing3DColorMaterial();
colrMat.Color = darkBlue;
var colrMat2 = new Printing3DColorMaterial();
colrMat2.Color = orange;
var colrMat3 = new Printing3DColorMaterial();
colrMat3.Color = teal;
// setup new materials using the ColorMaterial objects
// set desired material type in the Name property
var baseMaterial = new Printing3DBaseMaterial {
Name = Printing3DBaseMaterial.Pla,
Color = colrMat
};
var baseMaterial2 = new Printing3DBaseMaterial {
Name = Printing3DBaseMaterial.Abs,
Color = colrMat2
};
// add base materials to the basematerialgroup
// material group index 0
baseMaterialGroup.Bases.Add(baseMaterial);
// material group index 1
baseMaterialGroup.Bases.Add(baseMaterial2);
// add material group to the basegroups property of the model
model.Material.BaseGroups.Add(baseMaterialGroup);
//</SnippetBaseMaterialGroup>
//<SnippetColorMaterialGroup>
// add ColorMaterials to the Color Material Group (with id 2)
var colorGroup = new Printing3DColorMaterialGroup(2);
// add the previous ColorMaterial objects to this ColorMaterialGroup
colorGroup.Colors.Add(colrMat);
colorGroup.Colors.Add(colrMat2);
colorGroup.Colors.Add(colrMat3);
// add colorGroup to the ColorGroups property on the model
model.Material.ColorGroups.Add(colorGroup);
//</SnippetColorMaterialGroup>
//<SnippetMetadata>
model.Metadata.Add("Title", "Cube");
model.Metadata.Add("Designer", "John Smith");
model.Metadata.Add("CreationDate", "1/1/2016");
//</SnippetMetadata>
//<SnippetCompositeMaterialGroup>
// CompositeGroups
// create new composite material group with id = 3
var compositeGroup = new Printing3DCompositeMaterialGroup(3);
// indices point to base materials in BaseMaterialGroup with id =1
compositeGroup.MaterialIndices.Add(0);
compositeGroup.MaterialIndices.Add(1);
// create new composite materials
var compMat = new Printing3DCompositeMaterial();
// fraction adds to 1.0
compMat.Values.Add(0.2); // .2 of first base material in BaseMaterialGroup 1
compMat.Values.Add(0.8); // .8 of second base material in BaseMaterialGroup 1
var compMat2 = new Printing3DCompositeMaterial();
// fraction adds to 1.0
compMat2.Values.Add(0.5);
compMat2.Values.Add(0.5);
var compMat3 = new Printing3DCompositeMaterial();
// fraction adds to 1.0
compMat3.Values.Add(0.8);
compMat3.Values.Add(0.2);
var compMat4 = new Printing3DCompositeMaterial();
// fraction adds to 1.0
compMat4.Values.Add(0.4);
compMat4.Values.Add(0.6);
// add composites to group
compositeGroup.Composites.Add(compMat);
compositeGroup.Composites.Add(compMat2);
compositeGroup.Composites.Add(compMat3);
compositeGroup.Composites.Add(compMat4);
// add group to model
model.Material.CompositeGroups.Add(compositeGroup);
//</SnippetCompositeMaterialGroup>
//<SnippetTextureResource>
// texture resource setup
Printing3DTextureResource texResource = new Printing3DTextureResource();
// name conveys the path within the 3MF document
texResource.Name = "/3D/Texture/msLogo.png";
// in this case, we reference texture data in the sample appx, convert it to
// an IRandomAccessStream, and assign it as the TextureData
Uri texUri = new Uri("ms-appx:///Assets/msLogo.png");
StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(texUri);
IRandomAccessStreamWithContentType iRandomAccessStreamWithContentType = await file.OpenReadAsync();
texResource.TextureData = iRandomAccessStreamWithContentType;
// add this testure resource to the 3MF Package
localPackage.Textures.Add(texResource);
// assign this texture resource to a Printing3DModelTexture
var modelTexture = new Printing3DModelTexture();
modelTexture.TextureResource = texResource;
//</SnippetTextureResource>
//<SnippetTexture2CoordMaterialGroup>
// texture2Coord Group
// create new Texture2CoordMaterialGroup with id = 4
var tex2CoordGroup = new Printing3DTexture2CoordMaterialGroup(4);
// create texture materials:
// set up four tex2coordmaterial objects with four (u,v) pairs,
// mapping to each corner of the image:
var tex2CoordMaterial = new Printing3DTexture2CoordMaterial();
tex2CoordMaterial.U = 0.0;
tex2CoordMaterial.V = 1.0;
tex2CoordGroup.Texture2Coords.Add(tex2CoordMaterial);
var tex2CoordMaterial2 = new Printing3DTexture2CoordMaterial();
tex2CoordMaterial2.U = 1.0;
tex2CoordMaterial2.V = 1.0;
tex2CoordGroup.Texture2Coords.Add(tex2CoordMaterial2);
var tex2CoordMaterial3 = new Printing3DTexture2CoordMaterial();
tex2CoordMaterial3.U = 0.0;
tex2CoordMaterial3.V = 0.0;
tex2CoordGroup.Texture2Coords.Add(tex2CoordMaterial3);
var tex2CoordMaterial4 = new Printing3DTexture2CoordMaterial();
tex2CoordMaterial4.U = 1.0;
tex2CoordMaterial4.V = 0.0;
tex2CoordGroup.Texture2Coords.Add(tex2CoordMaterial4);
// add our Printing3DModelTexture to the Texture property of the group
tex2CoordGroup.Texture = modelTexture;
// add metadata about the texture so that u,v values can be used
model.Metadata.Add("tex4", "/3D/Texture/msLogo.png");
// add group to groups on the model's material
model.Material.Texture2CoordGroups.Add(tex2CoordGroup);
//</SnippetTexture2CoordMaterialGroup>
//<SnippetComponents>
// create new component
Printing3DComponent component = new Printing3DComponent();
// assign mesh to the component's mesh
component.Mesh = mesh;
// add component to the model's list of all used components
// a model can have references to multiple components
model.Components.Add(component);
// create the transform matrix
var componentWithMatrix = new Printing3DComponentWithMatrix();
// assign component to this componentwithmatrix
componentWithMatrix.Component = component;
// create an identity matrix
var identityMatrix = Matrix4x4.Identity;
// use the identity matrix as the transform matrix (no transformation)
componentWithMatrix.Matrix = identityMatrix;
// add component to the build property.
model.Build.Components.Add(componentWithMatrix);
//</SnippetComponents>
//<SnippetSavePackage>
// save the model to the package:
await localPackage.SaveModelToPackageAsync(model);
// get the model stream
var modelStream = localPackage.ModelPart;
// fix any textures in the model file
localPackage.ModelPart = await FixTextureContentType(modelStream);
//</SnippetSavePackage>
return(true);
}
private static async Task <Printing3D3MFPackage> CreatePackageAsync()
{
var package = new Printing3D3MFPackage();
var model = new Printing3DModel();
model.Unit = Printing3DModelUnit.Millimeter;
// Material indices start at 1. (0 is reserved.)
#region Color materials
// Create color materials.
var colorMaterial1 = new Printing3DColorMaterial {
Color = Color.FromArgb(255, 20, 20, 90)
};
var colorMaterial2 = new Printing3DColorMaterial {
Color = Color.FromArgb(255, 250, 120, 45)
};
// Create a color group with id 1 and add the colors to it.
var colorGroup = new Printing3DColorMaterialGroup(1);
colorGroup.Colors.Add(colorMaterial1);
colorGroup.Colors.Add(colorMaterial2);
// add the color group to the model.
model.Material.ColorGroups.Add(colorGroup);
#endregion
#region Base materials
// Create base materials.
var material1 = new Printing3DBaseMaterial {
Name = Printing3DBaseMaterial.Pla, Color = colorMaterial1
};
var material2 = new Printing3DBaseMaterial {
Name = Printing3DBaseMaterial.Abs, Color = colorMaterial2
};
// Create a new base material group with id 2 and add the base materials to it.
var materialGroup = new Printing3DBaseMaterialGroup(2);
materialGroup.Bases.Add(material1);
materialGroup.Bases.Add(material2);
// Add the material group to the base groups on the model.
model.Material.BaseGroups.Add(materialGroup);
#endregion
#region Composite material groups
// Create a composite material group with id 3.
var compositeMaterialGroup = new Printing3DCompositeMaterialGroup(3);
// Add it to the metadata.
// The key is the string "composite" followed by the composite material group id.
// The value specifies that the default base material group to use is id 2.
model.Metadata.Add("composite3", "2");
// The indices are relative to the material indices that will be set by SetMaterialIndicesAsync.
compositeMaterialGroup.MaterialIndices.Add(0);
compositeMaterialGroup.MaterialIndices.Add(1);
// Create new composite materials.
// The Values correspond to the materials added in the compositeMaterialGroup,
// and they must sum to 1.0.
// Composite material 1 consists of 20% material1 and 80% material2.
var compositeMaterial1 = new Printing3DCompositeMaterial();
compositeMaterial1.Values.Add(0.2);
compositeMaterial1.Values.Add(0.8);
// Composite material 2 consists of 50% material1 and 50% material2.
var compositeMaterial2 = new Printing3DCompositeMaterial();
compositeMaterial2.Values.Add(0.5);
compositeMaterial2.Values.Add(0.5);
// Composite material 3 consists of 80% material1 and 20% material2.
var compositeMaterial3 = new Printing3DCompositeMaterial();
compositeMaterial3.Values.Add(0.8);
compositeMaterial3.Values.Add(0.2);
// Composite material 4 consists of 40% material1 and 60% material2.
var compositeMaterial4 = new Printing3DCompositeMaterial();
compositeMaterial4.Values.Add(0.4);
compositeMaterial4.Values.Add(0.6);
// Add the composite materials to the compositeMaterialGroup.
compositeMaterialGroup.Composites.Add(compositeMaterial1);
compositeMaterialGroup.Composites.Add(compositeMaterial2);
compositeMaterialGroup.Composites.Add(compositeMaterial3);
compositeMaterialGroup.Composites.Add(compositeMaterial4);
// Add the composite material group to the model.
model.Material.CompositeGroups.Add(compositeMaterialGroup);
#endregion
#region Texture resource
Printing3DTextureResource textureResource = new Printing3DTextureResource();
// Set the texture path in the 3MF file.
textureResource.Name = "/3D/Texture/msLogo.png";
// Load the texture from our package.
StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Assets/msLogo.png"));
textureResource.TextureData = await file.OpenReadAsync();
package.Textures.Add(textureResource);
#endregion
#region 2D texture materials
// Create a texture material group with id 4.
var texture2CoordGroup = new Printing3DTexture2CoordMaterialGroup(4);
// Add it to the metadata.
// The key is the string "tex" followed by the texture material group id.
// The value is the name of the texture resource (see textureResource.Name above).
model.Metadata.Add("tex4", "/3D/Texture/msLogo.png");
// Create texture materials and add them to the group.
texture2CoordGroup.Texture2Coords.Add(new Printing3DTexture2CoordMaterial()
{
U = 0.0, V = 1.0
});
texture2CoordGroup.Texture2Coords.Add(new Printing3DTexture2CoordMaterial()
{
U = 1.0, V = 1.0
});
texture2CoordGroup.Texture2Coords.Add(new Printing3DTexture2CoordMaterial()
{
U = 0.0, V = 0.0
});
texture2CoordGroup.Texture2Coords.Add(new Printing3DTexture2CoordMaterial()
{
U = 1.0, V = 0.0
});
// Add the texture material group to the model.
model.Material.Texture2CoordGroups.Add(texture2CoordGroup);
#endregion
#region Mesh
var mesh = new Printing3DMesh();
await SetVerticesAsync(mesh);
await SetTriangleIndicesAsync(mesh);
await SetMaterialIndicesAsync(mesh);
// add the mesh to the model
model.Meshes.Add(mesh);
#endregion
#region Adding a component to the build
// create a component.
Printing3DComponent component = new Printing3DComponent();
// assign the mesh to the component's mesh.
component.Mesh = mesh;
// Add the component to the model. A model can have multiple components.
model.Components.Add(component);
// The world matrix for the component is the identity matrix.
var componentWithMatrix = new Printing3DComponentWithMatrix()
{
Component = component, Matrix = Matrix4x4.Identity
};
// add the componentWithMatrix to the build.
// The build defines what is to be printed from within a Printing3DModel.
// If you leave a mesh out of the build, it will not be printed.
model.Build.Components.Add(componentWithMatrix);
#endregion
// Save the completed model into a package.
await package.SaveModelToPackageAsync(model);
// fix any textures in the model file.
await FixTextureContentTypeAsync(package);
return(package);
}
private static async Task<Printing3D3MFPackage> CreatePackageAsync()
{
var package = new Printing3D3MFPackage();
var model = new Printing3DModel();
model.Unit = Printing3DModelUnit.Millimeter;
// Material indices start at 1. (0 is reserved.)
#region Color materials
// Create color materials.
var colorMaterial1 = new Printing3DColorMaterial { Color = Color.FromArgb(255, 20, 20, 90) };
var colorMaterial2 = new Printing3DColorMaterial { Color = Color.FromArgb(255, 250, 120, 45) };
// Create a color group with id 1 and add the colors to it.
var colorGroup = new Printing3DColorMaterialGroup(1);
colorGroup.Colors.Add(colorMaterial1);
colorGroup.Colors.Add(colorMaterial2);
// add the color group to the model.
model.Material.ColorGroups.Add(colorGroup);
#endregion
#region Base materials
// Create base materials.
var material1 = new Printing3DBaseMaterial { Name = Printing3DBaseMaterial.Pla, Color = colorMaterial1 };
var material2 = new Printing3DBaseMaterial { Name = Printing3DBaseMaterial.Abs, Color = colorMaterial2 };
// Create a new base material group with id 2 and add the base materials to it.
var materialGroup = new Printing3DBaseMaterialGroup(2);
materialGroup.Bases.Add(material1);
materialGroup.Bases.Add(material2);
// Add the material group to the base groups on the model.
model.Material.BaseGroups.Add(materialGroup);
#endregion
#region Composite material groups
// Create a composite material group with id 3.
var compositeMaterialGroup = new Printing3DCompositeMaterialGroup(3);
// Add it to the metadata.
// The key is the string "composite" followed by the composite material group id.
// The value specifies that the default base material group to use is id 2.
model.Metadata.Add("composite3", "2");
// The indices are relative to the material indices that will be set by SetMaterialIndicesAsync.
compositeMaterialGroup.MaterialIndices.Add(0);
compositeMaterialGroup.MaterialIndices.Add(1);
// Create new composite materials.
// The Values correspond to the materials added in the compositeMaterialGroup,
// and they must sum to 1.0.
// Composite material 1 consists of 20% material1 and 80% material2.
var compositeMaterial1 = new Printing3DCompositeMaterial();
compositeMaterial1.Values.Add(0.2);
compositeMaterial1.Values.Add(0.8);
// Composite material 2 consists of 50% material1 and 50% material2.
var compositeMaterial2 = new Printing3DCompositeMaterial();
compositeMaterial2.Values.Add(0.5);
compositeMaterial2.Values.Add(0.5);
// Composite material 3 consists of 80% material1 and 20% material2.
var compositeMaterial3 = new Printing3DCompositeMaterial();
compositeMaterial3.Values.Add(0.8);
compositeMaterial3.Values.Add(0.2);
// Composite material 4 consists of 40% material1 and 60% material2.
var compositeMaterial4 = new Printing3DCompositeMaterial();
compositeMaterial4.Values.Add(0.4);
compositeMaterial4.Values.Add(0.6);
// Add the composite materials to the compositeMaterialGroup.
compositeMaterialGroup.Composites.Add(compositeMaterial1);
compositeMaterialGroup.Composites.Add(compositeMaterial2);
compositeMaterialGroup.Composites.Add(compositeMaterial3);
compositeMaterialGroup.Composites.Add(compositeMaterial4);
// Add the composite material group to the model.
model.Material.CompositeGroups.Add(compositeMaterialGroup);
#endregion
#region Texture resource
Printing3DTextureResource textureResource = new Printing3DTextureResource();
// Set the texture path in the 3MF file.
textureResource.Name = "/3D/Texture/msLogo.png";
// Load the texture from our package.
StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Assets/msLogo.png"));
textureResource.TextureData = await file.OpenReadAsync();
package.Textures.Add(textureResource);
#endregion
#region 2D texture materials
// Create a texture material group with id 4.
var texture2CoordGroup = new Printing3DTexture2CoordMaterialGroup(4);
// Add it to the metadata.
// The key is the string "tex" followed by the texture material group id.
// The value is the name of the texture resource (see textureResource.Name above).
model.Metadata.Add("tex4", "/3D/Texture/msLogo.png");
// Create texture materials and add them to the group.
texture2CoordGroup.Texture2Coords.Add(new Printing3DTexture2CoordMaterial() { U = 0.0, V = 1.0 });
texture2CoordGroup.Texture2Coords.Add(new Printing3DTexture2CoordMaterial() { U = 1.0, V = 1.0 });
texture2CoordGroup.Texture2Coords.Add(new Printing3DTexture2CoordMaterial() { U = 0.0, V = 0.0 });
texture2CoordGroup.Texture2Coords.Add(new Printing3DTexture2CoordMaterial() { U = 1.0, V = 0.0 });
// Add the texture material group to the model.
model.Material.Texture2CoordGroups.Add(texture2CoordGroup);
#endregion
#region Mesh
var mesh = new Printing3DMesh();
await SetVerticesAsync(mesh);
await SetTriangleIndicesAsync(mesh);
await SetMaterialIndicesAsync(mesh);
// add the mesh to the model
model.Meshes.Add(mesh);
#endregion
#region Adding a component to the build
// create a component.
Printing3DComponent component = new Printing3DComponent();
// assign the mesh to the component's mesh.
component.Mesh = mesh;
// Add the component to the model. A model can have multiple components.
model.Components.Add(component);
// The world matrix for the component is the identity matrix.
var componentWithMatrix = new Printing3DComponentWithMatrix() { Component = component, Matrix = Matrix4x4.Identity };
// add the componentWithMatrix to the build.
// The build defines what is to be printed from within a Printing3DModel.
// If you leave a mesh out of the build, it will not be printed.
model.Build.Components.Add(componentWithMatrix);
#endregion
// Save the completed model into a package.
await package.SaveModelToPackageAsync(model);
// fix any textures in the model file.
await FixTextureContentTypeAsync(package);
return package;
}