public void TestDensityBasedLOD()
{
TW.Graphics.SpectaterCamera.FarClip = 5000;
var maxSampleSize = 64;
var skipLevels = 1;
var density = createDensityFunction5Perlin(19, maxSampleSize / 2);
var meshBuilder = new DualContouringMeshBuilder();
var size = maxSampleSize * (int)(Math.Pow(2, skipLevels));
var minSize = skipLevels;
var maxSize = Math.Log(size) / Math.Log(2);
for (int i = minSize; i < maxSize; i++)
{
var currI = i;
var multiplier = (int)(Math.Pow(2, i));
var resolution = size / multiplier;
var grid = HermiteDataGrid.CopyGrid(new DensityFunctionHermiteGrid(v => density(v * multiplier), new Point3(resolution, resolution, resolution)));
var mesh = meshBuilder.buildMesh(grid);
var el = TW.Graphics.AcquireRenderer().CreateMeshElement(mesh);
el.WorldMatrix = Matrix.Scaling(new Vector3(multiplier)) * Matrix.Translation((size * 1.1f) * (i - skipLevels), 0, 0);
}
EngineFactory.CreateEngine().AddSimulator(new WorldRenderingSimulator());
}
public VoxelCustomRenderer(DX11Game game, DeferredRenderer dRenderer, DualContouringMeshBuilder dcMeshBuilder, DualContouringAlgorithm dcAlgo, MeshRenderDataFactory renderDataFactory)
{
this.game = game;
this.dRenderer = dRenderer;
this.dcMeshBuilder = dcMeshBuilder;
this.dcAlgo = dcAlgo;
this.renderDataFactory = renderDataFactory;
var tex = new RAMTexture();
defaultMaterial = new DCVoxelMaterial()
{
Texture = DCFiles.UVCheckerMap11_512
};
objectBuffer = DeferredMaterial.CreatePerObjectCB(game);
}
public static void addFaceNormals(AbstractHermiteGrid grid, float cellSize, LineManager3DLines lines)
{
var vertices = new List <Vector3>();
var indices = new List <int>();
var algo = new DualContouringAlgorithm();
algo.GenerateSurface(vertices, indices, grid);
var builder = new DualContouringMeshBuilder();
var triangleNormals = builder.generateTriangleNormals(indices, vertices);
for (int i = 0; i < indices.Count; i += 3)
{
var v1 = vertices[indices[i]];
var v2 = vertices[indices[i + 1]];
var v3 = vertices[indices[i + 2]];
var mean = (v1 + v2 + v3) / 3f;
lines.AddCenteredBox(mean * cellSize, 0.05f, Color.DarkCyan);
lines.AddLine(mean * cellSize, (mean + triangleNormals[i / 3] * 0.5f) * cellSize, Color.Cyan);
}
}