// Create the buffer for triangle indices.
private static async Task SetTriangleIndicesAsync(Printing3DMesh mesh)
{
Printing3DBufferDescription description;
description.Format = Printing3DBufferFormat.Printing3DUInt;
description.Stride = 3; // 3 vertex position indices per triangle
mesh.IndexCount = 12; // 12 triangles in the cube
mesh.TriangleIndicesDescription = description;
// Create the buffer into which we will write the triangle vertex indices.
mesh.CreateTriangleIndices(sizeof(UInt32) * description.Stride * mesh.IndexCount);
// Fill the buffer with triangle vertex indices.
using (var stream = mesh.GetTriangleIndices().AsStream())
{
UInt32[] indices =
{
1, 0, 2,
1, 2, 3,
0, 1, 5,
0, 5, 4,
1, 3, 7,
1, 7, 5,
2, 7, 3,
2, 6, 7,
0, 6, 2,
0, 4, 6,
6, 5, 7,
4, 5, 6,
};
var vertexData = indices.SelectMany(v => BitConverter.GetBytes(v)).ToArray();
await stream.WriteAsync(vertexData, 0, vertexData.Length);
}
}
private static async Task GetIndicesAsync(Printing3DMesh mesh)
{
Printing3DBufferDescription description;
description.Format = Printing3DBufferFormat.Printing3DUInt;
description.Stride = 3;
mesh.IndexCount = indicesCount;
mesh.TriangleIndicesDescription = description;
mesh.CreateTriangleIndices(sizeof(UInt32) * 3 * mesh.IndexCount);
var stream = mesh.GetTriangleIndices().AsStream();
{
var data = indicesPrint.SelectMany(v => BitConverter.GetBytes(v)).ToArray();
await stream.WriteAsync(data, 0, data.Length);
}
}
//</SnippetMaterialIndices>
/// <summary>
/// Set the triangle indices on the mesh
/// </summary>
/// <param name="mesh">Printing3DMesh</param>
/// <returns></returns>
//<SnippetTriangleIndices>
private static async Task SetTriangleIndicesAsync(Printing3DMesh mesh)
{
Printing3DBufferDescription description;
description.Format = Printing3DBufferFormat.Printing3DUInt;
// 3 vertex indices
description.Stride = 3;
// 12 triangles in all in the cube
mesh.IndexCount = 12;
mesh.TriangleIndicesDescription = description;
// allocate space for 12 triangles
mesh.CreateTriangleIndices(sizeof(UInt32) * 3 * 12);
// get a datastream of the triangle indices (should be blank at this point)
var stream2 = mesh.GetTriangleIndices().AsStream();
{
// define a set of triangle indices: each row is one triangle. The values in each row
// correspond to the index of the vertex.
UInt32[] indices =
{
1, 0, 2,
1, 2, 3,
0, 1, 5,
0, 5, 4,
1, 3, 7,
1, 7, 5,
2, 7, 3,
2, 6, 7,
0, 6, 2,
0, 4, 6,
6, 5, 7,
4, 5, 6,
};
// convert index data to byte array
var vertexData = indices.SelectMany(v => BitConverter.GetBytes(v)).ToArray();
var len = vertexData.Length;
// write index data to the triangle indices stream
await stream2.WriteAsync(vertexData, 0, vertexData.Length);
}
}
private static async Task GetIndicesAsync(Printing3DMesh mesh)
{
Printing3DBufferDescription description;
description.Format = Printing3DBufferFormat.Printing3DUInt;
description.Stride = 3;
mesh.IndexCount = indicesCount;
mesh.TriangleIndicesDescription = description;
mesh.CreateTriangleIndices(sizeof(UInt32) * 3 * mesh.IndexCount);
var stream = mesh.GetTriangleIndices().AsStream();
{
var data = indicesPrint.SelectMany(v => BitConverter.GetBytes(v)).ToArray();
await stream.WriteAsync(data, 0, data.Length);
}
}
// Create the buffer for triangle indices.
private static async Task SetTriangleIndicesAsync(Printing3DMesh mesh)
{
Printing3DBufferDescription description;
description.Format = Printing3DBufferFormat.Printing3DUInt;
description.Stride = 3; // 3 vertex position indices per triangle
mesh.IndexCount = 12; // 12 triangles in the cube
mesh.TriangleIndicesDescription = description;
// Create the buffer into which we will write the triangle vertex indices.
mesh.CreateTriangleIndices(sizeof(UInt32) * description.Stride * mesh.IndexCount);
// Fill the buffer with triangle vertex indices.
using (var stream = mesh.GetTriangleIndices().AsStream())
{
UInt32[] indices =
{
1, 0, 2,
1, 2, 3,
0, 1, 5,
0, 5, 4,
1, 3, 7,
1, 7, 5,
2, 7, 3,
2, 6, 7,
0, 6, 2,
0, 4, 6,
6, 5, 7,
4, 5, 6,
};
var vertexData = indices.SelectMany(v => BitConverter.GetBytes(v)).ToArray();
await stream.WriteAsync(vertexData, 0, vertexData.Length);
}
}
