/// <summary>
/// Initializes a new instance of the <see cref="Cube"/> class.
/// </summary>
/// <param name="graphics">The graphics object used to create the buffers needed by this object.</param>
/// <param name="inputLayout">The input layout describing how a vertex is laid out.</param>
public Cube(GorgonGraphics graphics, GorgonInputLayout inputLayout)
{
CubeVertex[] vertices =
{
new CubeVertex(new DX.Vector3(-0.5f, 0.5f, -0.5f), new DX.Vector3(0, 0, 0)),
new CubeVertex(new DX.Vector3(0.5f, 0.5f, -0.5f), new DX.Vector3(1.0f, 1.0f, 0)),
new CubeVertex(new DX.Vector3(0.5f, -0.5f, -0.5f), new DX.Vector3(0.0f, 1.0f, 0)),
new CubeVertex(new DX.Vector3(-0.5f, -0.5f, -0.5f), new DX.Vector3(1.0f, 0.0f, 0)),
new CubeVertex(new DX.Vector3(-0.5f, 0.5f, 0.5f), new DX.Vector3(0, 0, 0)),
new CubeVertex(new DX.Vector3(0.5f, 0.5f, 0.5f), new DX.Vector3(1.0f, 1.0f, 0)),
new CubeVertex(new DX.Vector3(0.5f, -0.5f, 0.5f), new DX.Vector3(0.0f, 1.0f, 0)),
new CubeVertex(new DX.Vector3(-0.5f, -0.5f, 0.5f), new DX.Vector3(1.0f, 0.0f, 0)),
};
ushort[] indices =
{
// Front face.
0, 1, 2,
2, 3, 0,
// Back face.
5, 4, 6,
4, 7, 6,
// Left face.
4, 0, 3,
3, 7, 4,
// Right face.
1, 5, 6,
6, 2, 1,
// Top face
4, 5, 1,
1, 0, 4,
// Bottom face
2, 6, 7,
7, 3, 2
};
// Create our index buffer and vertex buffer and populate with our cube data.
using (var indexPtr = GorgonNativeBuffer <ushort> .Pin(indices))
using (var vertexPtr = GorgonNativeBuffer <CubeVertex> .Pin(vertices))
{
IndexBuffer = new GorgonIndexBuffer(graphics,
new GorgonIndexBufferInfo("Volume Index Buffer")
{
Usage = ResourceUsage.Immutable,
IndexCount = indices.Length,
Use16BitIndices = true
},
indexPtr);
VertexBuffer = new GorgonVertexBufferBindings(inputLayout)
{
[0] = GorgonVertexBufferBinding.CreateVertexBuffer(graphics,
vertices.Length,
ResourceUsage.Immutable,
initialData: vertexPtr,
bufferName: "Volume Vertex Buffer")
};
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Plane" /> class.
/// </summary>
/// <param name="graphics">The graphics interface used to create the buffers for this object.</param>
/// <param name="inputLayout">The input layout for the vertices in this mesh.</param>
/// <param name="size">The width and height of the plane.</param>
/// <param name="textureCoordinates">Texture coordinates.</param>
public Plane(GorgonGraphics graphics, GorgonInputLayout inputLayout, DX.Vector2 size, DX.RectangleF textureCoordinates)
: base(inputLayout)
{
Size = size;
// Create our vertices.
Vertices = new[]
{
new BoingerVertex(new DX.Vector3(-size.X, size.Y, 0.0f), textureCoordinates.Location),
new BoingerVertex(new DX.Vector3(size.X, size.Y, 0.0f), new DX.Vector2(textureCoordinates.Right, textureCoordinates.Top)),
new BoingerVertex(new DX.Vector3(-size.X, -size.Y, 0.0f), new DX.Vector2(textureCoordinates.Left, textureCoordinates.Bottom)),
new BoingerVertex(new DX.Vector3(size.X, -size.Y, 0.0f), new DX.Vector2(textureCoordinates.Right, textureCoordinates.Bottom))
};
// Create our indices.
Indices = new ushort[]
{
0,
1,
2,
2,
1,
3
};
// Copy the above vertex/index data into a vertex and index buffer so we can render our plane.
using (var vertexPtr = GorgonNativeBuffer <BoingerVertex> .Pin(Vertices))
using (var indexPtr = GorgonNativeBuffer <ushort> .Pin(Indices))
{
VertexBufferBindings[0] = GorgonVertexBufferBinding.CreateVertexBuffer(graphics,
new GorgonVertexBufferInfo("Plane Vertex Buffer")
{
SizeInBytes =
Vertices.Length * BoingerVertex.Size,
Usage = ResourceUsage.Immutable
},
vertexPtr);
IndexBuffer = new GorgonIndexBuffer(graphics,
new GorgonIndexBufferInfo("Plane Index Buffer")
{
Usage = ResourceUsage.Immutable,
IndexCount = Indices.Length,
Use16BitIndices = true
},
indexPtr);
}
}
/// <summary>
/// Function to build the Icosphere.
/// </summary>
/// <param name="graphics">Graphics interface to use.</param>
/// <param name="radius">Radius of the sphere.</param>
/// <param name="tesselation">Tessellation factor for the sphere.</param>
/// <param name="textureCoordinates">Texture coordinate offset and scale.</param>
private void BuildSphere(GorgonGraphics graphics, float radius, int tesselation, DX.RectangleF textureCoordinates)
{
GetBaseVertices();
List <int[]> indices = GetBaseIndices();
for (int i = 0; i < tesselation; ++i)
{
var subIndices = new List <int[]>();
foreach (int[] index in indices)
{
int index0 = GetMiddlePoint(index[0], index[1]);
int index1 = GetMiddlePoint(index[1], index[2]);
int index2 = GetMiddlePoint(index[2], index[0]);
subIndices.Add(new []
{
index[0],
index0,
index2
});
subIndices.Add(new[]
{
index[1],
index1,
index0
});
subIndices.Add(new[]
{
index[2],
index2,
index1
});
subIndices.Add(new[]
{
index0,
index1,
index2
});
}
indices = subIndices;
_cachedSplits.Clear();
}
// Perform texture coordinate calculations and vertex/normal transformations.
const float piRecip = 1.0f / (float)System.Math.PI;
const float pi2Recip = 1.0f / (2.0f * (float)System.Math.PI);
// Final list.
var vertexList = new List <Vertex3D>();
var indexList = new List <int>();
foreach (DX.Vector3 vector in _vertices)
{
DX.Vector3 position = vector;
DX.Vector3 normal = position;
DX.Vector2 uv = DX.Vector2.Zero;
uv.X = ((0.5f - (position.X.ATan(position.Z) * pi2Recip)) * textureCoordinates.Width) + textureCoordinates.X;
uv.Y = ((0.5f - (position.Y.ASin() * piRecip)) * textureCoordinates.Height) + textureCoordinates.Y;
DX.Vector3.Multiply(ref position, radius, out position);
DX.Vector3.TransformCoordinate(ref position, ref _orientation, out position);
DX.Vector3.TransformCoordinate(ref normal, ref _orientation, out normal);
normal.Normalize();
vertexList.Add(new Vertex3D
{
Position = new DX.Vector4(position, 1.0f),
Normal = normal,
UV = uv
});
}
foreach (int[] index in indices)
{
for (int j = 0; j < 3; ++j)
{
indexList.Add(index[j]);
}
}
FixSeam(vertexList, indexList);
using (var vertexData = GorgonNativeBuffer <Vertex3D> .Pin(vertexList.ToArray()))
using (var indexData = GorgonNativeBuffer <int> .Pin(indexList.ToArray()))
{
VertexCount = vertexList.Count;
IndexCount = indexList.Count;
TriangleCount = IndexCount / 3;
CalculateTangents(vertexData, indexData);
VertexBuffer = new GorgonVertexBuffer(graphics,
new GorgonVertexBufferInfo("IcoSphereVertexBuffer")
{
SizeInBytes = vertexData.SizeInBytes,
Usage = ResourceUsage.Immutable
},
vertexData.Cast <byte>());
IndexBuffer = new GorgonIndexBuffer(graphics,
new GorgonIndexBufferInfo
{
Usage = ResourceUsage.Immutable,
Use16BitIndices = false,
IndexCount = IndexCount
},
indexData);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Sphere" /> class.
/// </summary>
/// <param name="graphics">The graphics interface used to create the buffers for this object.</param>
/// <param name="inputLayout">The input layout for the vertices in this mesh.</param>
/// <param name="radius">Radius of the sphere</param>
/// <param name="textureOffset">Offset of the texture.</param>
/// <param name="textureScale">Scale of the texture.</param>
/// <param name="ringCount">Number of rings in the sphere.</param>
/// <param name="segmentCount">Number of segments in the sphere.</param>
public Sphere(GorgonGraphics graphics,
GorgonInputLayout inputLayout,
float radius,
DX.Vector2 textureOffset,
DX.Size2F textureScale,
int ringCount = 8,
int segmentCount = 16)
: base(inputLayout)
{
ushort index = 0; // Current index.
int vertexIndex = 0; // Current vertex index.
int indexIndex = 0; // Current index array index.
float deltaRingAngle = ((float)System.Math.PI) / ringCount;
float deltaSegAngle = (((float)System.Math.PI) * 2.0f) / segmentCount;
// Calculate number of vertices and indices required for our sphere.
int vertexCount = (ringCount + 1) * (segmentCount + 1);
int indexCount = 6 * ringCount * (segmentCount + 1);
Vertices = new BoingerVertex[vertexCount];
Indices = new ushort[indexCount];
Radius = radius;
// Build our sphere.
for (int ring = 0; ring <= ringCount; ring++)
{
float angle = deltaRingAngle * ring;
float ringSin = angle.Sin();
var position = new DX.Vector3(0, angle.Cos() * radius, 0);
for (int segment = 0; segment <= segmentCount; segment++)
{
var textureDelta = new DX.Vector2(1.0f - (segment / (float)segmentCount), 1.0f - (ring / (float)ringCount));
float segmentAngle = deltaSegAngle * segment;
position.X = ringSin * segmentAngle.Sin() * radius;
position.Z = ringSin * segmentAngle.Cos() * radius;
// Create the vertex.
textureDelta.X *= textureScale.Width;
textureDelta.Y *= textureScale.Height;
textureDelta.X += textureOffset.X;
textureDelta.Y += textureOffset.Y;
Vertices[vertexIndex++] = new BoingerVertex(
position,
textureDelta
);
// Add the indices and skip the last ring.
if (ring == ringCount)
{
continue;
}
Indices[indexIndex++] = (ushort)(index + segmentCount + 1);
Indices[indexIndex++] = index;
Indices[indexIndex++] = (ushort)(index + segmentCount);
Indices[indexIndex++] = (ushort)(index + segmentCount + 1);
Indices[indexIndex++] = (ushort)(index + 1);
Indices[indexIndex++] = index;
index++;
}
}
// Copy the above vertex/index data into a vertex and index buffer so we can render our sphere.
using (var indexPtr = GorgonNativeBuffer <ushort> .Pin(Indices))
using (var vertexPtr = GorgonNativeBuffer <BoingerVertex> .Pin(Vertices))
{
VertexBufferBindings[0] = GorgonVertexBufferBinding.CreateVertexBuffer(graphics,
new GorgonVertexBufferInfo("Sphere Vertex Buffer")
{
SizeInBytes = Vertices.Length * BoingerVertex.Size,
Usage = ResourceUsage.Immutable
},
vertexPtr);
IndexBuffer = new GorgonIndexBuffer(graphics,
new GorgonIndexBufferInfo("Sphere Index Buffer")
{
Usage = ResourceUsage.Immutable,
IndexCount = Indices.Length
},
indexPtr);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Cube"/> class.
/// </summary>
/// <param name="graphics">The graphics object used to create the buffers needed by this object.</param>
/// <param name="inputLayout">The input layout describing how a vertex is laid out.</param>
public Cube(GorgonGraphics graphics, GorgonInputLayout inputLayout)
{
GlassCubeVertex[] vertices =
{
// Front face.
new GlassCubeVertex(new DX.Vector3(-0.5f, 0.5f, -0.5f), new DX.Vector2(0, 0)),
new GlassCubeVertex(new DX.Vector3(0.5f, -0.5f, -0.5f), new DX.Vector2(1.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(-0.5f, -0.5f, -0.5f), new DX.Vector2(0.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(0.5f, 0.5f, -0.5f), new DX.Vector2(1.0f, 0.0f)),
// Right face.
new GlassCubeVertex(new DX.Vector3(0.5f, 0.5f, -0.5f), new DX.Vector2(0, 0)),
new GlassCubeVertex(new DX.Vector3(0.5f, -0.5f, 0.5f), new DX.Vector2(1.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(0.5f, -0.5f, -0.5f), new DX.Vector2(0.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(0.5f, 0.5f, 0.5f), new DX.Vector2(1.0f, 0.0f)),
// Back face.
new GlassCubeVertex(new DX.Vector3(0.5f, 0.5f, 0.5f), new DX.Vector2(0, 0)),
new GlassCubeVertex(new DX.Vector3(-0.5f, -0.5f, 0.5f), new DX.Vector2(1.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(0.5f, -0.5f, 0.5f), new DX.Vector2(0.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(-0.5f, 0.5f, 0.5f), new DX.Vector2(1.0f, 0.0f)),
// Left face.
new GlassCubeVertex(new DX.Vector3(-0.5f, 0.5f, 0.5f), new DX.Vector2(0, 0)),
new GlassCubeVertex(new DX.Vector3(-0.5f, -0.5f, -0.5f), new DX.Vector2(1.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(-0.5f, -0.5f, 0.5f), new DX.Vector2(0.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(-0.5f, 0.5f, -0.5f), new DX.Vector2(1.0f, 0.0f)),
// Top face.
new GlassCubeVertex(new DX.Vector3(-0.5f, 0.5f, 0.5f), new DX.Vector2(0, 0)),
new GlassCubeVertex(new DX.Vector3(0.5f, 0.5f, -0.5f), new DX.Vector2(1.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(-0.5f, 0.5f, -0.5f), new DX.Vector2(0.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(0.5f, 0.5f, 0.5f), new DX.Vector2(1.0f, 0.0f)),
// Bottom face.
new GlassCubeVertex(new DX.Vector3(-0.5f, -0.5f, -0.5f), new DX.Vector2(0, 0)),
new GlassCubeVertex(new DX.Vector3(0.5f, -0.5f, 0.5f), new DX.Vector2(1.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(-0.5f, -0.5f, 0.5f), new DX.Vector2(0.0f, 1.0f)),
new GlassCubeVertex(new DX.Vector3(0.5f, -0.5f, -0.5f), new DX.Vector2(1.0f, 0.0f))
};
ushort[] indices =
{
8, 9, 10, 8, 11, 9,
12, 13, 14, 12, 15, 13,
4, 5, 6, 4, 7, 5,
16, 17, 18, 16, 19, 17,
20, 21, 22, 20, 23, 21,
0, 1, 2, 0, 3, 1
};
// Create our index buffer and vertex buffer and populate with our cube data.
using (var indexPtr = GorgonNativeBuffer <ushort> .Pin(indices))
using (var vertexPtr = GorgonNativeBuffer <GlassCubeVertex> .Pin(vertices))
{
IndexBuffer = new GorgonIndexBuffer(graphics,
new GorgonIndexBufferInfo("GlassCube Index Buffer")
{
Usage = ResourceUsage.Immutable,
IndexCount = indices.Length,
Use16BitIndices = true
},
indexPtr);
VertexBuffer = new GorgonVertexBufferBindings(inputLayout)
{
[0] = GorgonVertexBufferBinding.CreateVertexBuffer(graphics,
vertices.Length,
ResourceUsage.Immutable,
initialData: vertexPtr,
bufferName: "GlassCube Vertex Buffer")
};
}
}
