private RenderItem AddRenderItem(RenderLayer layer, int objCBIndex, string matName, string geoName, string submeshName,
Matrix?world = null, Matrix?texTransform = null)
{
MeshGeometry geo = _geometries[geoName];
SubmeshGeometry submesh = geo.DrawArgs[submeshName];
var renderItem = new RenderItem
{
ObjCBIndex = objCBIndex,
Mat = _materials[matName],
Geo = geo,
IndexCount = submesh.IndexCount,
StartIndexLocation = submesh.StartIndexLocation,
BaseVertexLocation = submesh.BaseVertexLocation,
World = world ?? Matrix.Identity,
TexTransform = texTransform ?? Matrix.Identity
};
_ritemLayers[layer].Add(renderItem);
_allRitems.Add(renderItem);
return(renderItem);
}
private void BuildTreeSpritesGeometry()
{
const int treeCount = 16;
var vertices = new TreeSpriteVertex[treeCount];
for (int i = 0; i < treeCount; i++)
{
float x = MathHelper.Randf(-45.0f, 45.0f);
float z = MathHelper.Randf(-45.0f, 45.0f);
float y = GetHillsHeight(x, z);
// Move tree slightly above land height.
y += 8.0f;
vertices[i].Pos = new Vector3(x, y, z);
vertices[i].Size = new Vector2(20.0f, 20.0f);
}
short[] indices =
{
0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15
};
var submesh = new SubmeshGeometry
{
IndexCount = indices.Length,
StartIndexLocation = 0,
BaseVertexLocation = 0
};
var geo = MeshGeometry.New(Device, CommandList, vertices, indices, "treeSpritesGeo");
geo.DrawArgs["points"] = submesh;
_geometries[geo.Name] = geo;
}
private void AddRenderItem(RenderLayer layer, int objCBIndex, string matName, string geoName, string submeshName,
Matrix?world = null, Matrix?texTransform = null, Vector2?dmTexelSize = null, float?gridSpatialStep = null)
{
MeshGeometry geo = _geometries[geoName];
SubmeshGeometry submesh = geo.DrawArgs[submeshName];
var renderItem = new RenderItem
{
ObjCBIndex = objCBIndex,
Mat = _materials[matName],
Geo = geo,
IndexCount = submesh.IndexCount,
StartIndexLocation = submesh.StartIndexLocation,
BaseVertexLocation = submesh.BaseVertexLocation
};
if (world.HasValue)
{
renderItem.World = world.Value;
}
if (texTransform.HasValue)
{
renderItem.TexTransform = texTransform.Value;
}
if (dmTexelSize.HasValue)
{
renderItem.DisplacementMapTexelSize = dmTexelSize.Value;
}
if (gridSpatialStep.HasValue)
{
renderItem.GridSpatialStep = gridSpatialStep.Value;
}
_ritemLayers[layer].Add(renderItem);
_allRitems.Add(renderItem);
}
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);
vertices[i].TexC = grid.Vertices[i].TexC;
}
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 BuildShapeGeometry()
{
//
// We are concatenating all the geometry into one big vertex/index buffer. So
// define the regions in the buffer each submesh covers.
//
var vertices = new List <Vertex>();
var indices = new List <short>();
SubmeshGeometry box = AppendMeshData(GeometryGenerator.CreateBox(1.0f, 1.0f, 1.0f, 3), vertices, indices);
SubmeshGeometry grid = AppendMeshData(GeometryGenerator.CreateGrid(20.0f, 30.0f, 60, 40), vertices, indices);
SubmeshGeometry sphere = AppendMeshData(GeometryGenerator.CreateSphere(0.5f, 20, 20), vertices, indices);
SubmeshGeometry cylinder = AppendMeshData(GeometryGenerator.CreateCylinder(0.5f, 0.3f, 3.0f, 20, 20), vertices, indices);
var geo = MeshGeometry.New(Device, CommandList, vertices, indices.ToArray(), "shapeGeo");
geo.DrawArgs["box"] = box;
geo.DrawArgs["grid"] = grid;
geo.DrawArgs["sphere"] = sphere;
geo.DrawArgs["cylinder"] = cylinder;
_geometries[geo.Name] = geo;
}
private void BuildSkullGeometry()
{
var vertices = new List <Vertex>();
var indices = new List <int>();
int vCount = 0, tCount = 0;
using (var reader = new StreamReader("Models\\Skull.txt"))
{
var input = reader.ReadLine();
if (input != null)
{
vCount = Convert.ToInt32(input.Split(':')[1].Trim());
}
input = reader.ReadLine();
if (input != null)
{
tCount = Convert.ToInt32(input.Split(':')[1].Trim());
}
do
{
input = reader.ReadLine();
} while (input != null && !input.StartsWith("{", StringComparison.Ordinal));
for (int i = 0; i < vCount; i++)
{
input = reader.ReadLine();
if (input != null)
{
var vals = input.Split(' ');
vertices.Add(new Vertex
{
Pos = new Vector3(
Convert.ToSingle(vals[0].Trim(), CultureInfo.InvariantCulture),
Convert.ToSingle(vals[1].Trim(), CultureInfo.InvariantCulture),
Convert.ToSingle(vals[2].Trim(), CultureInfo.InvariantCulture)),
Normal = new Vector3(
Convert.ToSingle(vals[3].Trim(), CultureInfo.InvariantCulture),
Convert.ToSingle(vals[4].Trim(), CultureInfo.InvariantCulture),
Convert.ToSingle(vals[5].Trim(), CultureInfo.InvariantCulture))
});
}
}
do
{
input = reader.ReadLine();
} while (input != null && !input.StartsWith("{", StringComparison.Ordinal));
for (var i = 0; i < tCount; i++)
{
input = reader.ReadLine();
if (input == null)
{
break;
}
var m = input.Trim().Split(' ');
indices.Add(Convert.ToInt32(m[0].Trim()));
indices.Add(Convert.ToInt32(m[1].Trim()));
indices.Add(Convert.ToInt32(m[2].Trim()));
}
}
var geo = MeshGeometry.New(Device, CommandList, vertices.ToArray(), indices.ToArray(), "skullGeo");
var submesh = new SubmeshGeometry
{
IndexCount = indices.Count,
StartIndexLocation = 0,
BaseVertexLocation = 0
};
geo.DrawArgs["skull"] = submesh;
_geometries[geo.Name] = geo;
}
private void BuildSkullGeometry()
{
var vertices = new List <Vertex>();
var indices = new List <int>();
int vCount = 0, tCount = 0;
using (var reader = new StreamReader("Models\\Skull.txt"))
{
var input = reader.ReadLine();
if (input != null)
{
vCount = Convert.ToInt32(input.Split(':')[1].Trim());
}
input = reader.ReadLine();
if (input != null)
{
tCount = Convert.ToInt32(input.Split(':')[1].Trim());
}
do
{
input = reader.ReadLine();
} while (input != null && !input.StartsWith("{", StringComparison.Ordinal));
for (int i = 0; i < vCount; i++)
{
input = reader.ReadLine();
if (input != null)
{
string[] vals = input.Split(' ');
var pos = new Vector3(
Convert.ToSingle(vals[0].Trim(), CultureInfo.InvariantCulture),
Convert.ToSingle(vals[1].Trim(), CultureInfo.InvariantCulture),
Convert.ToSingle(vals[2].Trim(), CultureInfo.InvariantCulture));
var normal = new Vector3(
Convert.ToSingle(vals[3].Trim(), CultureInfo.InvariantCulture),
Convert.ToSingle(vals[4].Trim(), CultureInfo.InvariantCulture),
Convert.ToSingle(vals[5].Trim(), CultureInfo.InvariantCulture));
// Generate a tangent vector so normal mapping works. We aren't applying
// a texture map to the skull, so we just need any tangent vector so that
// the math works out to give us the original interpolated vertex normal.
Vector3 tangent = Math.Abs(Vector3.Dot(normal, Vector3.Up)) < 1.0f - 0.001f
? Vector3.Normalize(Vector3.Cross(normal, Vector3.Up))
: Vector3.Normalize(Vector3.Cross(normal, Vector3.ForwardLH));
vertices.Add(new Vertex
{
Pos = pos,
Normal = normal,
TangentU = tangent
});
}
}
do
{
input = reader.ReadLine();
} while (input != null && !input.StartsWith("{", StringComparison.Ordinal));
for (var i = 0; i < tCount; i++)
{
input = reader.ReadLine();
if (input == null)
{
break;
}
var m = input.Trim().Split(' ');
indices.Add(Convert.ToInt32(m[0].Trim()));
indices.Add(Convert.ToInt32(m[1].Trim()));
indices.Add(Convert.ToInt32(m[2].Trim()));
}
}
var geo = MeshGeometry.New(Device, CommandList, vertices.ToArray(), indices.ToArray(), "skullGeo");
var submesh = new SubmeshGeometry
{
IndexCount = indices.Count,
StartIndexLocation = 0,
BaseVertexLocation = 0
};
geo.DrawArgs["skull"] = submesh;
_geometries[geo.Name] = 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;
}