public Sky(Device device, string filename, float skySphereRadius)
{
CubeMapSRV = ShaderResourceView.FromFile(device, filename);
using (var r = CubeMapSRV.Resource) {
r.DebugName = "sky cubemap";
}
var sphere = GeometryGenerator.CreateSphere(skySphereRadius, 30, 30);
var vertices = sphere.Vertices.Select(v => v.Position).ToArray();
var vbd = new BufferDescription(
Marshal.SizeOf(typeof(Vector3)) * vertices.Length,
ResourceUsage.Immutable,
BindFlags.VertexBuffer,
CpuAccessFlags.None,
ResourceOptionFlags.None,
0
);
_vb = new Buffer(device, new DataStream(vertices, false, false), vbd);
_indexCount = sphere.Indices.Count;
var ibd = new BufferDescription(
_indexCount * sizeof(int),
ResourceUsage.Immutable,
BindFlags.IndexBuffer,
CpuAccessFlags.None,
ResourceOptionFlags.None,
0
);
_ib = new Buffer(device, new DataStream(sphere.Indices.ToArray(), false, false), ibd);
}
private void BuildScreenQuadGeometryBuffers()
{
var quad = GeometryGenerator.CreateFullScreenQuad();
var verts = quad.Vertices.Select(v => new Basic32(v.Position, v.Normal, v.TexC)).ToList();
var vbd = new BufferDescription(Basic32.Stride * verts.Count, ResourceUsage.Immutable, BindFlags.VertexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
ScreenQuadVB = new Buffer(Device, new DataStream(verts.ToArray(), false, false), vbd);
var ibd = new BufferDescription(sizeof(int) * quad.Indices.Count, ResourceUsage.Immutable, BindFlags.IndexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
ScreenQuadIB = new Buffer(Device, new DataStream(quad.Indices.ToArray(), false, false), ibd);
}