public void GenerateNoise(Geometry inputGeometry, NoiseSettings noiseSettings, Crater[] craters)
{
try
{
var stopwatch = Stopwatch.StartNew();
var file = Path.GetFullPath(Path.Join(this.Content.RootDirectory, @"ComputeShaders\Noise.hlsl"));
var shader = new ComputeShader(this.Device, file, "Kernel");
shader.SetResource("Settings", noiseSettings);
shader.SetResource("InputGeometry", inputGeometry.Vertices);
shader.SetResource("InputCraters", craters);
shader.AllocateResource <GBufferVertex>("OutputGeometry", inputGeometry.VertexCount);
var dispatchSize = ComputeShader.GetDispatchSize(512, inputGeometry.VertexCount);
shader.Compute(dispatchSize, 1, 1);
var data = shader.CopyDataToCPU <GBufferVertex>(inputGeometry.VertexCount, "OutputGeometry");
Array.Copy(data, inputGeometry.Vertices, data.Length);
var time = stopwatch.ElapsedMilliseconds;
Debug.WriteLine($"Compute shader 'Noise.hlsl' processed {inputGeometry.VertexCount} in {time}ms");
// TODO: scale back to fit inside bounding box doesn't work yet, result looks correct after multiple runs?
MeshHelper.ScaleToUnitSphere(inputGeometry.Vertices); //-->
MeshHelper.ComputeNormals(inputGeometry.Vertices, inputGeometry.Indices);
// TODO: also compute binormals and tangets, MonoGame\MonoGame.Framework.Content.Pipeline\Graphics\MeshHelper.cs for an example.
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
