private void BuildBoxGeometry()
{
GeometryGenerator.MeshData box = GeometryGenerator.CreateBox(8.0f, 8.0f, 8.0f, 3);
var boxSubmesh = new SubmeshGeometry
{
IndexCount = box.Indices32.Count,
StartIndexLocation = 0,
BaseVertexLocation = 0
};
Vertex[] vertices = box.Vertices.Select(x => new Vertex
{
Pos = x.Position,
Normal = x.Normal,
TexC = x.TexC
}).ToArray();
short[] indices = box.GetIndices16().ToArray();
var geo = MeshGeometry.New(Device, CommandList, vertices, indices, "boxGeo");
geo.DrawArgs["box"] = boxSubmesh;
_geometries[geo.Name] = geo;
}
private SubmeshGeometry AppendMeshData(GeometryGenerator.MeshData meshData, List <Vertex> vertices, List <short> indices)
{
//
// Define the SubmeshGeometry that cover different
// regions of the vertex/index buffers.
//
var submesh = new SubmeshGeometry
{
IndexCount = meshData.Indices32.Count,
StartIndexLocation = indices.Count,
BaseVertexLocation = vertices.Count
};
//
// Extract the vertex elements we are interested in and pack the
// vertices and indices of all the meshes into one vertex/index buffer.
//
vertices.AddRange(meshData.Vertices.Select(vertex => new Vertex
{
Pos = vertex.Position,
Normal = vertex.Normal,
TexC = vertex.TexC
}));
indices.AddRange(meshData.GetIndices16());
return(submesh);
}
private void BuildLandGeometry()
{
GeometryGenerator.MeshData grid = GeometryGenerator.CreateGrid(160.0f, 160.0f, 50, 50);
//
// Extract the vertex elements we are interested and apply the height function to
// each vertex. In addition, color the vertices based on their height so we have
// sandy looking beaches, grassy low hills, and snow mountain peaks.
//
var vertices = new Vertex[grid.Vertices.Count];
for (int i = 0; i < grid.Vertices.Count; i++)
{
Vector3 p = grid.Vertices[i].Position;
vertices[i].Pos = p;
vertices[i].Pos.Y = GetHillsHeight(p.X, p.Z);
vertices[i].Normal = GetHillsNormal(p.X, p.Z);
}
List <short> indices = grid.GetIndices16();
var geo = MeshGeometry.New(Device, CommandList, vertices, indices.ToArray(), "landGeo");
var submesh = new SubmeshGeometry
{
IndexCount = indices.Count,
StartIndexLocation = 0,
BaseVertexLocation = 0
};
geo.DrawArgs["grid"] = submesh;
_geometries["landGeo"] = geo;
}
private void BuildWavesGeometry()
{
GeometryGenerator.MeshData grid = GeometryGenerator.CreateGrid(160.0f, 160.0f, _waves.RowCount, _waves.ColumnCount);
var vertices = new Vertex[grid.Vertices.Count];
for (int i = 0; i < grid.Vertices.Count; i++)
{
vertices[i].Pos = grid.Vertices[i].Position;
vertices[i].Normal = grid.Vertices[i].Normal;
vertices[i].TexC = grid.Vertices[i].TexC;
}
var indices = new int[3 * _waves.TriangleCount]; // 3 indices per face.
Debug.Assert(_waves.VertexCount < int.MaxValue);
// Iterate over each quad.
int m = _waves.RowCount;
int n = _waves.ColumnCount;
int k = 0;
for (int i = 0; i < m - 1; ++i)
{
for (int j = 0; j < n - 1; ++j)
{
indices[k + 0] = i * n + j;
indices[k + 1] = i * n + j + 1;
indices[k + 2] = (i + 1) * n + j;
indices[k + 3] = (i + 1) * n + j;
indices[k + 4] = i * n + j + 1;
indices[k + 5] = (i + 1) * n + j + 1;
k += 6; // Next quad.
}
}
var geo = MeshGeometry.New(Device, CommandList, vertices, indices, "waterGeo");
geo.VertexByteStride = Utilities.SizeOf <Vertex>();
geo.VertexBufferByteSize = geo.VertexByteStride * _waves.VertexCount;
var submesh = new SubmeshGeometry
{
IndexCount = indices.Length,
StartIndexLocation = 0,
BaseVertexLocation = 0
};
geo.DrawArgs["grid"] = submesh;
_geometries["waterGeo"] = geo;
}
private void BuildLandGeometry()
{
GeometryGenerator.MeshData grid = GeometryGenerator.CreateGrid(160.0f, 160.0f, 50, 50);
//
// Extract the vertex elements we are interested and apply the height function to
// each vertex. In addition, color the vertices based on their height so we have
// sandy looking beaches, grassy low hills, and snow mountain peaks.
//
var vertices = new Vertex[grid.Vertices.Count];
for (int i = 0; i < grid.Vertices.Count; i++)
{
Vector3 p = grid.Vertices[i].Position;
vertices[i].Pos = p;
vertices[i].Pos.Y = GetHillsHeight(p.X, p.Z);
// Color the vertex based on its height.
if (vertices[i].Pos.Y < -10.0f)
{
// Sandy beach color.
vertices[i].Color = new Vector4(1.0f, 0.96f, 0.62f, 1.0f);
}
else if (vertices[i].Pos.Y < 5.0f)
{
// Light yellow-green.
vertices[i].Color = new Vector4(0.48f, 0.77f, 0.46f, 1.0f);
}
else if (vertices[i].Pos.Y < 12.0f)
{
// Dark yellow-green.
vertices[i].Color = new Vector4(0.1f, 0.48f, 0.19f, 1.0f);
}
else if (vertices[i].Pos.Y < 20.0f)
{
// Dark brown.
vertices[i].Color = new Vector4(0.45f, 0.39f, 0.34f, 1.0f);
}
else
{
// White snow.
vertices[i].Color = new Vector4(1.0f, 1.0f, 1.0f, 1.0f);
}
}
List <short> indices = grid.GetIndices16();
var geo = MeshGeometry.New(Device, CommandList, vertices, indices.ToArray(), "landGeo");
var submesh = new SubmeshGeometry
{
IndexCount = indices.Count,
StartIndexLocation = 0,
BaseVertexLocation = 0
};
geo.DrawArgs["grid"] = submesh;
_geometries["landGeo"] = geo;
}
