private void UpdateUv()
{
for (int i = 0; i < _vertices.Length; i++)
{
_vertices[i].UV = GetTexCoord(_uV, i, _rotation);
}
_vertexBuffer.Dispose();
SetVertexBuffer(_vertices);
}
} // AddLine(startPoint, endPoint, color)
private void initialize(Device device)
{
if (vertexBuffer != null)
{
vertexBuffer.Dispose();
}
var bufferDesc = new BufferDescription(VertexPositionColor.SizeInBytes * lineVertices.Length,
ResourceUsage.Dynamic, BindFlags.VertexBuffer, CpuAccessFlags.Write,
ResourceOptionFlags.None, VertexPositionColor.SizeInBytes);
vertexBuffer = new Buffer(device, bufferDesc);
}
public void Dispose()
{
if (_shaderEffect != null)
{
_shaderEffect.Dispose();
}
if (_textureView != null)
{
_textureView.Dispose();
}
if (_indexBuffer != null)
{
_indexBuffer.Dispose();
}
if (_vertexBuffer != null)
{
_vertexBuffer.Dispose();
}
if (_accIndexBuffer != null)
{
_accIndexBuffer.Dispose();
}
if (_valencePrefixBuffer != null)
{
_valencePrefixBuffer.Dispose();
}
if (_valencePrefixView != null)
{
_valencePrefixView.Dispose();
}
}
public DX11SharedStructuredBuffer(DX11RenderContext context, IntPtr sharedHandle)
{
try
{
Buffer buffer = context.Device.OpenSharedResource <Buffer>(sharedHandle);
BufferDescription bdesc = buffer.Description;
if (!bdesc.OptionFlags.HasFlag(ResourceOptionFlags.StructuredBuffer))
{
buffer.Dispose();
throw new InvalidOperationException("This buffer handle does not have structured buffer flag");
}
this.Buffer = buffer;
this.Stride = bdesc.StructureByteStride;
this.ElementCount = bdesc.SizeInBytes / this.Stride;
this.Size = bdesc.SizeInBytes;
this.SRV = new ShaderResourceView(context.Device, this.Buffer);
}
catch
{
throw new InvalidOperationException("Buffer handle is invalid");
}
}
public void Unload()
{
vertexLayout.Dispose();
vertexBuffer.Dispose();
indexBuffer.Dispose();
textureManager.Dispose();
}
public void Dispose()
{
Material = null;
DiffuseTexture = null;
if (Shader != null)
{
Shader.Dispose();
}
Shader = null;
if (PerObjectConstantBuffer != null)
{
PerObjectConstantBuffer.Dispose();
}
PerObjectConstantBuffer = null;
if (Parts != null)
{
foreach (var p in Parts)
{
p.Dispose();
}
}
Parts = null;
}
public void Dispose()
{
VertexBuffer.Dispose();
IndexBuffer.Dispose();
VertexBuffer = null;
IndexBuffer = null;
}
private void ReleaseResources()
{
layout.Dispose();
effect.Dispose();
indicesb1.Dispose();
indicesb2.Dispose();
}
/// <summary>
/// Gibt die Resourcen der Instanz frei.
/// </summary>
/// <param name="disposing">
/// true, um managed Resourcen freizugeben; andernfalls false.
/// </param>
protected virtual void Dispose(bool disposing)
{
if (!disposed)
{
// Merken, daß die Instanz freigegeben wurde.
disposed = true;
// Managed Resourcen freigeben.
if (disposing)
{
if (vertexBuffer != null)
{
vertexBuffer.Dispose();
}
if (indexBuffer != null)
{
indexBuffer.Dispose();
}
if (inputLayout != null)
{
inputLayout.Dispose();
}
}
// Hier Unmanaged Resourcen freigeben.
}
}
protected override void DisposeResource()
{
mUnorderedAccessView?.Dispose();
mResourceView?.Dispose();
mHardwareBuffer?.Dispose();
mSwapBuffer?.Dispose();
}
public static T[] CopyBuffer <T>(Device graphicsDevice, Resource source, int offset, int count) where T : struct
{
Buffer destination = new Buffer(graphicsDevice, new BufferDescription()
{
BindFlags = BindFlags.None,
CpuAccessFlags = CpuAccessFlags.Read,
OptionFlags = ResourceOptionFlags.None,
Usage = ResourceUsage.Staging,
SizeInBytes = (source as Buffer).Description.SizeInBytes,
StructureByteStride = (source as Buffer).Description.StructureByteStride
});
graphicsDevice.ImmediateContext.CopyResource(source, destination);
DataBox data = graphicsDevice.ImmediateContext.MapSubresource(destination, MapMode.Read, MapFlags.None);
T[] result = new T[count];
data.Data.Position = offset * Marshal.SizeOf(typeof(T));
data.Data.ReadRange <T>(result, 0, count);
graphicsDevice.ImmediateContext.UnmapSubresource(destination, 0);
destination.Dispose();
return(result);
}
public void CreateBufferInstance(CustomConstantBufferDefinition baseDefinition, Device device, bool newInstance)
{
if (!newInstance)
{
m_Writer.Dispose();
m_Writer = null;
m_DataStream.Dispose();
m_DataStream = null;
m_ConstantBuffer.Dispose();
m_ConstantBuffer = null;
}
else
{
m_Values = new Dictionary <String, object>();
}
m_Definition = baseDefinition;
m_DefinitionName = baseDefinition.m_Name;
m_DataBuffer = new byte[baseDefinition.m_Size];
m_Size = baseDefinition.m_Size;
m_DataStream = new MemoryStream(m_DataBuffer, 0, baseDefinition.m_Size, true);
m_Writer = new BinaryWriter(m_DataStream);
m_ConstantBuffer = new SlimDX.Direct3D11.Buffer(
device,
baseDefinition.m_Size,
ResourceUsage.Dynamic,
BindFlags.ConstantBuffer,
CpuAccessFlags.Write,
ResourceOptionFlags.None,
0);
}
/// <summary>
/// 廃棄
/// </summary>
public void Dispose()
{
shader_.Dispose();
if (constantBuffer_ != null)
{
constantBuffer_.Dispose();
}
}
public void Dispose()
{
_quadVertices.Dispose();
_layout.Dispose();
_renderTexture.Dispose();
_srv.Dispose();
UAV.Dispose();
_effect.Dispose();
}
public void Dispose()
{
inputPS.Dispose();
inputVS.Dispose();
miscInfoBuffer.Dispose();
strokeInfoBuffer.Dispose();
quad.Dispose();
bitmap.Dispose();
}
public void Draw()
{
if (VertexCount > 0)
{
SlimDX.Direct3D11.Buffer vertices = GetDrawBuffer();
DrawBuffer(vertices);
vertices.Dispose();
}
Reset();
}
public void Dispose()
{
if (_constBuffer != null)
{
_constBuffer.Dispose();
_constBuffer = null;
}
_device = null;
}
/// <summary>
/// Converts mesh to DX-buffers.
/// </summary>
private static void MeshToBuffers(Device device,
Mesh mesh,
out SlimDX.Direct3D11.Buffer vertices,
out SlimDX.Direct3D11.Buffer indices)
{
SlimDX.DataStream dsVertices = new SlimDX.DataStream(mesh.Vertices.Length * 6 * sizeof(float), true, true);
SlimDX.DataStream dsIndices = new SlimDX.DataStream(mesh.Indices.Length * 3 * sizeof(int), true, true);
vertices = null;
indices = null;
try
{
foreach (Vertex v in mesh.Vertices)
{
v.WriteTo(dsVertices);
}
dsVertices.Position = 0;
BufferDescription bdVertices = new BufferDescription();
bdVertices.BindFlags = BindFlags.VertexBuffer;
bdVertices.CpuAccessFlags = CpuAccessFlags.None;
bdVertices.OptionFlags = ResourceOptionFlags.None;
bdVertices.SizeInBytes = mesh.Vertices.Length * 6 * sizeof(float);
bdVertices.Usage = ResourceUsage.Default;
vertices = new SlimDX.Direct3D11.Buffer(device, dsVertices, bdVertices);
dsIndices.WriteRange(mesh.Indices);
dsIndices.Position = 0;
BufferDescription bdIndices = new BufferDescription();
bdIndices.BindFlags = BindFlags.IndexBuffer;
bdIndices.CpuAccessFlags = CpuAccessFlags.None;
bdIndices.OptionFlags = ResourceOptionFlags.None;
bdIndices.SizeInBytes = mesh.Indices.Length * 3 * sizeof(int);
bdIndices.Usage = ResourceUsage.Default;
indices = new SlimDX.Direct3D11.Buffer(device, dsIndices, bdIndices);
}
catch (Exception)
{
if (vertices != null)
{
vertices.Dispose();
vertices = null;
}
if (indices != null)
{
indices.Dispose();
indices = null;
}
throw;
}
finally
{
dsVertices.Dispose();
dsIndices.Dispose();
}
}
public void Dispose()
{
ScreenBufferShaderResource.Dispose();
ScreenBufferShaderResourceTexture.Dispose();
OffscreenRenderTargetTexture.Dispose();
OffscreenRenderTarget.Dispose();
CBuffer.Dispose();
GoLVS.Dispose();
GoLPS.Dispose();
quad.Dispose();
}
public void Dispose()
{
SetCull(true);
device.ImmediateContext.Rasterizer.State?.Dispose();
SetCull(false);
device.ImmediateContext.Rasterizer.State?.Dispose();
texture?.Dispose();
index?.Dispose();
Vertex?.Dispose();
layout?.Dispose();
effect?.Dispose();
}
public override void Dispose()
{
vertexShader?.Dispose();
pixelShader?.Dispose();
inputSignature?.Dispose();
layout?.Dispose();
ConstantsBuffer?.Dispose();
Texture?.Dispose();
Sampler?.Dispose();
base.Dispose();
}
// ReSharper restore InconsistentNaming
public void Dispose()
{
mTexCoordVertexBuffer.Dispose();
mPositionVertexBuffer.Dispose();
mRenderGreyScaleTexture3DInputLayout.Dispose();
mRenderTexture3DInputLayout.Dispose();
mRenderSolidInputLayout.Dispose();
mRenderWireframeInputLayout.Dispose();
mEffect.Dispose();
}
internal void Dispose()
{
Disposed = true;
if (!indexBuffer.Disposed)
{
indexBuffer.Dispose();
}
if (!vertexBuffer.Disposed)
{
vertexBuffer.Dispose();
}
}
public void Destroy()
{
vertices.Close();
vertexBuffer.Dispose();
layout.Dispose();
inputSignature.Dispose();
vertexShader.Dispose();
pixelShader.Dispose();
renderTarget.Dispose();
swapChain.Dispose();
device.Dispose();
}
public void Dispose()
{
Vb.Dispose();
Ib.Dispose();
if (Tex != null)
{
Tex.Dispose();
}
if (Blen != null)
{
Blen.Dispose();
}
//if (Rast != null) Rast.Dispose();
}
/// <summary>
/// Copies a range of data to an array
/// </summary>
/// <param name="index">Index from which to start copying</param>
/// <param name="count">Number of elements to copy</param>
/// <param name="array">Destination array to copy to</param>
/// <param name="arrayIndex">Destination array index to copy to</param>
public void CopyRangeTo(int index, int count, T[] array, int arrayIndex)
{
if (count == 0)
{
return;
}
if (count < 0)
{
throw new IndexOutOfRangeException();
}
if (index < 0 || index >= Count)
{
throw new IndexOutOfRangeException();
}
if (index + count < 0 || index + count > Count)
{
throw new IndexOutOfRangeException();
}
if (array == null)
{
throw new ArgumentNullException();
}
if (arrayIndex < 0 || arrayIndex >= array.Length)
{
throw new IndexOutOfRangeException();
}
if (arrayIndex + array.Length < 0 || arrayIndex + count > array.Length)
{
throw new IndexOutOfRangeException();
}
int dataSize = Marshal.SizeOf(typeof(T));
Buffer stagingBuffer = new Buffer(context.Device, dataSize * count, ResourceUsage.Staging,
BindFlags.None, CpuAccessFlags.Read, ResourceOptionFlags.None, 0);
context.CopySubresourceRegion(buffer, 0,
new ResourceRegion(dataSize * index, 0, 0, dataSize * (index + count), 1, 1),
stagingBuffer, 0, 0, 0, 0);
DataBox box = context.MapSubresource(stagingBuffer, MapMode.Read, MapFlags.None);
box.Data.ReadRange <T>(array, arrayIndex, count);
context.UnmapSubresource(stagingBuffer, 0);
stagingBuffer.Dispose();
}
private void Dispose(bool disposing)
{
if (!this.disposed)
{
if (disposing)
{
//There are no managed resources to dispose
}
Fx.Dispose();
InputLayout.Dispose();
DSState.Dispose();
VB.Dispose();
}
this.disposed = true;
}
protected virtual void Dispose(bool disposing)
{
if (!isDisposed)
{
if (disposing)
{
}
prefixScan.Dispose();
computePositionWeightNoiseCube.Dispose();
computeNormalAmbient.Dispose();
computeMarchingCubesCases.Dispose();
computeMarchingCubesVertices.Dispose();
computePositionWeightNoiseCubeWarp.Dispose();
computePositionWeightFormula.Dispose();
constantBuffer.Dispose();
}
isDisposed = true;
}
bool CreateInputBuffer(Device device, float diffTime)
{
List <Matrix> matrixArray = new List <Matrix>();
for (int i = 0; i < statusArray.Count; i++)
{
float speed = diffTime / (float)Math.Sqrt(statusArray[i].Length);
Matrix lot = Matrix.RotationAxis(statusArray[i].axis, speed);
lot = Matrix.Multiply(statusArray[i].matrix, lot);
statusArray[i].matrix = lot;
matrixArray.Add(statusArray[i].matrix);
}
DataStream stream;
try
{
if (inputBuffer != null)
{
inputBuffer.Dispose();
}
stream = new DataStream(matrixArray.ToArray(), true, true);
inputBuffer = new SlimDX.Direct3D11.Buffer(
device,
stream,
new BufferDescription
{
SizeInBytes = (int)stream.Length,
BindFlags = BindFlags.ShaderResource,
OptionFlags = ResourceOptionFlags.DrawIndirect,
}
);
stream.Dispose();
}
catch (Exception e)
{
return(false);
}
return(true);
}
public void Dispose()
{
if (mTexCoordVertexBuffer != null)
{
mTexCoordVertexBuffer.Dispose();
mTexCoordVertexBuffer = null;
}
if (mPositionVertexBuffer != null)
{
mPositionVertexBuffer.Dispose();
mPositionVertexBuffer = null;
}
if (mRenderGreyScaleTexture3DInputLayout != null)
{
mRenderGreyScaleTexture3DInputLayout.Dispose();
mRenderGreyScaleTexture3DInputLayout = null;
}
if (mRenderTexture3DInputLayout != null)
{
mRenderTexture3DInputLayout.Dispose();
mRenderTexture3DInputLayout = null;
}
if (mRenderSolidInputLayout != null)
{
mRenderSolidInputLayout.Dispose();
mRenderSolidInputLayout = null;
}
if (mRenderWireframeInputLayout != null)
{
mRenderWireframeInputLayout.Dispose();
mRenderWireframeInputLayout = null;
}
mEffect.Dispose();
}
public UnorderedAccessView PrefixSumArray(Buffer constantBuffer, UnorderedAccessView trisCountUAV)
{
int arrayLength = trisCountUAV.Description.ElementCount;
int batchSize = trisCountUAV.Description.ElementCount / arrayLength;
if (!IsPowerOfTwo(trisCountUAV.Description.ElementCount))
throw new Exception("Input array length is not power of two.");
Buffer buffer = new Buffer(graphicsDevice, new BufferDescription()
{
BindFlags = BindFlags.UnorderedAccess,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.StructuredBuffer,
Usage = ResourceUsage.Default,
SizeInBytes = Marshal.SizeOf(typeof(int)) * trisCountUAV.Description.ElementCount,
StructureByteStride = Marshal.SizeOf(typeof(int))
});
UnorderedAccessView bufferUAV = new UnorderedAccessView(graphicsDevice, buffer);
Buffer output = new Buffer(graphicsDevice, new BufferDescription()
{
BindFlags = BindFlags.UnorderedAccess,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.StructuredBuffer,
Usage = ResourceUsage.Default,
SizeInBytes = Marshal.SizeOf(typeof(int)) * trisCountUAV.Description.ElementCount,
StructureByteStride = Marshal.SizeOf(typeof(int))
});
UnorderedAccessView outputUAV = new UnorderedAccessView(graphicsDevice, output);
DirectComputeConstantBuffer constantBufferContainer = new DirectComputeConstantBuffer()
{
PrefixSize = 4 * threadBlockSize,
PrefixN = (batchSize * arrayLength) / (4 * threadBlockSize),
PrefixArrayLength = arrayLength / (4 * threadBlockSize)
};
DataBox data = graphicsDevice.ImmediateContext.MapSubresource(constantBuffer, MapMode.WriteDiscard, MapFlags.None);
data.Data.Write<DirectComputeConstantBuffer>(constantBufferContainer);
graphicsDevice.ImmediateContext.UnmapSubresource(constantBuffer, 0);
Vector3 gridDim = new Vector3((batchSize * arrayLength) / (4 * threadBlockSize), 1, 1);
Vector3 gridDimShared2 = new Vector3((int)Math.Ceiling(((batchSize * arrayLength) / (4 * threadBlockSize)) / (double)threadBlockSize), 1, 1);
graphicsDevice.ImmediateContext.ComputeShader.Set(computeScanExclusiveShared);
graphicsDevice.ImmediateContext.ComputeShader.SetConstantBuffer(constantBuffer, 0);
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(trisCountUAV, 2);
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(outputUAV, 3);
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(bufferUAV, 4);
graphicsDevice.ImmediateContext.Dispatch((int)gridDim.X, (int)gridDim.Y, (int)gridDim.Z);
graphicsDevice.ImmediateContext.ComputeShader.Set(computeScanExclusiveShared2);
graphicsDevice.ImmediateContext.Dispatch((int)gridDimShared2.X, (int)gridDimShared2.Y, (int)gridDimShared2.Z);
graphicsDevice.ImmediateContext.ComputeShader.Set(computeUniformUpdate);
graphicsDevice.ImmediateContext.Dispatch((int)gridDim.X, (int)gridDim.Y, (int)gridDim.Z);
buffer.Dispose();
bufferUAV.Dispose();
return outputUAV;
}
static void Main()
{
var form = new RenderForm("SlimDX - MiniTri Direct3D 11 Sample");
var desc = new SwapChainDescription()
{
BufferCount = 1,
ModeDescription = new ModeDescription(form.ClientSize.Width, form.ClientSize.Height, new Rational(60, 1), Format.R8G8B8A8_UNorm),
IsWindowed = true,
OutputHandle = form.Handle,
SampleDescription = new SampleDescription(1, 0),
SwapEffect = SwapEffect.Discard,
Usage = Usage.RenderTargetOutput
};
Device device;
SwapChain swapChain;
Device.CreateWithSwapChain(DriverType.Hardware, DeviceCreationFlags.Debug, desc, out device, out swapChain);
device.Factory.SetWindowAssociation(form.Handle, WindowAssociationFlags.IgnoreAll);
Texture2D backBuffer = Texture2D.FromSwapChain<Texture2D>(swapChain, 0);
var renderView = new RenderTargetView(device, backBuffer);
var bytecode = ShaderBytecode.CompileFromFile("MiniTri.fx", "fx_5_0", ShaderFlags.None, EffectFlags.None);
var effect = new Effect(device, bytecode);
var technique = effect.GetTechniqueByIndex(0);
var pass = technique.GetPassByIndex(0);
var layout = new InputLayout(device, pass.Description.Signature, new[] {
new InputElement("POSITION", 0, Format.R32G32B32A32_Float, 0, 0),
new InputElement("COLOR", 0, Format.R32G32B32A32_Float, 16, 0)
});
var stream = new DataStream(3 * 32, true, true);
stream.WriteRange(new[] {
new Vector4(0.0f, 0.5f, 0.5f, 1.0f), new Vector4(1.0f, 0.0f, 0.0f, 1.0f),
new Vector4(0.5f, -0.5f, 0.5f, 1.0f), new Vector4(0.0f, 1.0f, 0.0f, 1.0f),
new Vector4(-0.5f, -0.5f, 0.5f, 1.0f), new Vector4(0.0f, 0.0f, 1.0f, 1.0f)
});
stream.Position = 0;
var vertices = new SlimDX.Direct3D11.Buffer(device, stream, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = 3 * 32,
Usage = ResourceUsage.Default
});
stream.Dispose();
device.ImmediateContext.OutputMerger.SetTargets(renderView);
device.ImmediateContext.Rasterizer.SetViewports(new Viewport(0, 0, form.ClientSize.Width, form.ClientSize.Height, 0.0f, 1.0f));
MessagePump.Run(form, () =>
{
device.ImmediateContext.ClearRenderTargetView(renderView, Color.Black);
device.ImmediateContext.InputAssembler.InputLayout = layout;
device.ImmediateContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
device.ImmediateContext.InputAssembler.SetVertexBuffers(0, new VertexBufferBinding(vertices, 32, 0));
for (int i = 0; i < technique.Description.PassCount; ++i)
{
pass.Apply(device.ImmediateContext);
device.ImmediateContext.Draw(3, 0);
}
swapChain.Present(0, PresentFlags.None);
});
bytecode.Dispose();
vertices.Dispose();
layout.Dispose();
effect.Dispose();
renderView.Dispose();
backBuffer.Dispose();
device.Dispose();
swapChain.Dispose();
}
private static void TestManagedDXDevice()
{
Device device;
SwapChain swapChain;
ShaderSignature inputSignature;
VertexShader vertexShader;
PixelShader pixelShader;
var form = new RenderForm("Tutorial 3: Simple Triangle");
var description = new SwapChainDescription()
{
BufferCount = 2,
Usage = Usage.RenderTargetOutput,
OutputHandle = form.Handle,
IsWindowed = true,
ModeDescription = new ModeDescription(0, 0, new Rational(60, 1), Format.R8G8B8A8_UNorm),
SampleDescription = new SampleDescription(1, 0),
Flags = SwapChainFlags.AllowModeSwitch,
SwapEffect = SwapEffect.Discard
};
Device.CreateWithSwapChain(DriverType.Hardware, DeviceCreationFlags.Debug, description, out device, out swapChain);
// create a view of our render target, which is the backbuffer of the swap chain we just created
RenderTargetView renderTarget;
using (var resource = Resource.FromSwapChain<Texture2D>(swapChain, 0))
renderTarget = new RenderTargetView(device, resource);
// setting a viewport is required if you want to actually see anything
var context = device.ImmediateContext;
var viewport = new Viewport(0.0f, 0.0f, form.ClientSize.Width, form.ClientSize.Height);
context.OutputMerger.SetTargets(renderTarget);
context.Rasterizer.SetViewports(viewport);
// load and compile the vertex shader
using (var bytecode = ShaderBytecode.CompileFromFile("triangle.fx", "VShader", "vs_4_0", ShaderFlags.None, EffectFlags.None))
{
inputSignature = ShaderSignature.GetInputSignature(bytecode);
vertexShader = new VertexShader(device, bytecode);
}
// load and compile the pixel shader
using (var bytecode = ShaderBytecode.CompileFromFile("triangle.fx", "PShader", "ps_4_0", ShaderFlags.None, EffectFlags.None))
pixelShader = new PixelShader(device, bytecode);
// create test vertex data, making sure to rewind the stream afterward
var vertices = new DataStream(12 * 3, true, true);
vertices.Write(new Vector3(0.0f, 0.5f, 0.5f));
vertices.Write(new Vector3(0.5f, -0.5f, 0.5f));
vertices.Write(new Vector3(-0.5f, -0.5f, 0.5f));
vertices.Position = 0;
// create the vertex layout and buffer
var elements = new[] { new InputElement("POSITION", 0, Format.R32G32B32_Float, 0) };
var layout = new InputLayout(device, inputSignature, elements);
var vertexBuffer = new SlimDX.Direct3D11.Buffer(device, vertices, 12 * 3, ResourceUsage.Default, BindFlags.VertexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
// configure the Input Assembler portion of the pipeline with the vertex data
context.InputAssembler.InputLayout = layout;
context.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
context.InputAssembler.SetVertexBuffers(0, new VertexBufferBinding(vertexBuffer, 12, 0));
// set the shaders
context.VertexShader.Set(vertexShader);
context.PixelShader.Set(pixelShader);
// prevent DXGI handling of alt+enter, which doesn't work properly with Winforms
using (var factory = swapChain.GetParent<Factory>())
factory.SetWindowAssociation(form.Handle, WindowAssociationFlags.IgnoreAltEnter);
// handle alt+enter ourselves
form.KeyDown += (o, e) =>
{
if (e.Alt && e.KeyCode == Keys.Enter)
swapChain.IsFullScreen = !swapChain.IsFullScreen;
};
// handle form size changes
form.UserResized += (o, e) =>
{
renderTarget.Dispose();
swapChain.ResizeBuffers(2, 0, 0, Format.R8G8B8A8_UNorm, SwapChainFlags.AllowModeSwitch);
using (var resource = Resource.FromSwapChain<Texture2D>(swapChain, 0))
renderTarget = new RenderTargetView(device, resource);
context.OutputMerger.SetTargets(renderTarget);
};
MessagePump.Run(form, () =>
{
// clear the render target to a soothing blue
context.ClearRenderTargetView(renderTarget, new Color4(0.5f, 0.5f, 1.0f));
// draw the triangle
context.Draw(3, 0);
swapChain.Present(0, PresentFlags.None);
});
// clean up all resources
// anything we missed will show up in the debug output
vertices.Close();
vertexBuffer.Dispose();
layout.Dispose();
inputSignature.Dispose();
vertexShader.Dispose();
pixelShader.Dispose();
renderTarget.Dispose();
swapChain.Dispose();
device.Dispose();
}
private void Generate(ComputeShader computePositionWeight, int width, int height, int depth)
{
int count = width * height * depth;
int widthD = width - 1;
int heightD = height - 1;
int depthD = depth - 1;
int countD = widthD * heightD * depthD;
int nearestW = NearestPowerOfTwo(widthD);
int nearestH = NearestPowerOfTwo(heightD);
int nearestD = NearestPowerOfTwo(depthD);
int nearestCount = nearestW * nearestH * nearestD;
Vector3 gridDim = new Vector3((float)Math.Ceiling(width / 8.0f), (float)Math.Ceiling(height / 8.0f), (float)Math.Ceiling(depth / 8.0f));
Vector3 gridDimD = new Vector3((float)Math.Ceiling(widthD / 8.0f), (float)Math.Ceiling(heightD / 8.0f), (float)Math.Ceiling(depthD / 8.0f));
constantBufferContainer = new DirectComputeConstantBuffer()
{
Width = 16,
Height = 16,
Depth = 16,
Seed = (int)DateTime.Now.Ticks
};
DirectComputeNoiseCube noiseCube = new DirectComputeNoiseCube(graphicsDevice);
ShaderResourceView noiseSRV = noiseCube.GenerateNoiseTexture(constantBuffer, constantBufferContainer);
Buffer voxelsBuffer = new Buffer(graphicsDevice, new BufferDescription()
{
BindFlags = BindFlags.UnorderedAccess,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.StructuredBuffer,
Usage = ResourceUsage.Default,
SizeInBytes = Marshal.SizeOf(typeof(Voxel)) * count,
StructureByteStride = Marshal.SizeOf(typeof(Voxel))
});
UnorderedAccessView voxelsUAV = new UnorderedAccessView(graphicsDevice, voxelsBuffer);
constantBufferContainer = new DirectComputeConstantBuffer()
{
Width = width,
Height = height,
Depth = depth,
AmbientRayWidth = container.Settings.AmbientRayWidth,
AmbientSamplesCount = container.Settings.AmbientSamplesCount,
NearestWidth = nearestW,
NearestHeight = nearestH,
NearestDepth = nearestD
};
DataBox data = graphicsDevice.ImmediateContext.MapSubresource(constantBuffer, MapMode.WriteDiscard, MapFlags.None);
data.Data.Write<DirectComputeConstantBuffer>(constantBufferContainer);
graphicsDevice.ImmediateContext.UnmapSubresource(constantBuffer, 0);
graphicsDevice.ImmediateContext.ComputeShader.Set(computePositionWeight);
graphicsDevice.ImmediateContext.ComputeShader.SetConstantBuffer(constantBuffer, 0);
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(voxelsUAV, 0);
graphicsDevice.ImmediateContext.ComputeShader.SetShaderResource(noiseSRV, 0);
graphicsDevice.ImmediateContext.Dispatch((int)gridDim.X, (int)gridDim.Y, (int)gridDim.Z);
graphicsDevice.ImmediateContext.ComputeShader.Set(computeNormalAmbient);
graphicsDevice.ImmediateContext.Dispatch((int)gridDim.X, (int)gridDim.Y, (int)gridDim.Z);
Buffer offsetsBuffer = new Buffer(graphicsDevice, new BufferDescription()
{
BindFlags = BindFlags.UnorderedAccess,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.StructuredBuffer,
Usage = ResourceUsage.Default,
SizeInBytes = Marshal.SizeOf(typeof(int)) * countD,
StructureByteStride = Marshal.SizeOf(typeof(int))
});
UnorderedAccessView offsetsUAV = new UnorderedAccessView(graphicsDevice, offsetsBuffer);
Buffer trisCountBuffer = new Buffer(graphicsDevice, new BufferDescription()
{
BindFlags = BindFlags.UnorderedAccess,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.StructuredBuffer,
Usage = ResourceUsage.Default,
SizeInBytes = Marshal.SizeOf(typeof(int)) * nearestCount,
StructureByteStride = Marshal.SizeOf(typeof(int))
});
UnorderedAccessView trisCountUAV = new UnorderedAccessView(graphicsDevice, trisCountBuffer);
graphicsDevice.ImmediateContext.ClearUnorderedAccessView(trisCountUAV, new int[] { 0, 0, 0, 0 });
graphicsDevice.ImmediateContext.ComputeShader.Set(computeMarchingCubesCases);
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(offsetsUAV, 1);
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(trisCountUAV, 2);
graphicsDevice.ImmediateContext.Dispatch((int)gridDimD.X, (int)gridDimD.Y, (int)gridDimD.Z);
UnorderedAccessView prefixSumsUAV = prefixScan.PrefixSumArray(constantBuffer, trisCountUAV);
int lastTrisCount = DirectComputeBufferHelper.CopyBuffer<int>(graphicsDevice, trisCountBuffer, nearestCount - 1, 1)[0];
int lastPrefixSum = DirectComputeBufferHelper.CopyBuffer<int>(graphicsDevice, prefixSumsUAV.Resource, nearestCount - 1, 1)[0];
int totalVerticesCount = (lastTrisCount + lastPrefixSum) * 3;
if (totalVerticesCount > 0)
{
if (container.Geometry != null)
container.Geometry.Dispose();
container.VertexCount = totalVerticesCount;
container.Geometry = new Buffer(graphicsDevice, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = Marshal.SizeOf(typeof(VoxelMeshVertex)) * totalVerticesCount,
Usage = ResourceUsage.Default
});
Buffer verticesBuffer = new Buffer(graphicsDevice, new BufferDescription()
{
BindFlags = BindFlags.UnorderedAccess,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.StructuredBuffer,
Usage = ResourceUsage.Default,
SizeInBytes = Marshal.SizeOf(typeof(VoxelMeshVertex)) * totalVerticesCount,
StructureByteStride = Marshal.SizeOf(typeof(VoxelMeshVertex))
});
UnorderedAccessView verticesUAV = new UnorderedAccessView(graphicsDevice, verticesBuffer);
constantBufferContainer = new DirectComputeConstantBuffer()
{
Width = width,
Height = height,
Depth = depth,
NearestWidth = nearestW,
NearestHeight = nearestH,
NearestDepth = nearestD
};
data = graphicsDevice.ImmediateContext.MapSubresource(constantBuffer, MapMode.WriteDiscard, MapFlags.None);
data.Data.Write<DirectComputeConstantBuffer>(constantBufferContainer);
graphicsDevice.ImmediateContext.UnmapSubresource(constantBuffer, 0);
graphicsDevice.ImmediateContext.ComputeShader.Set(computeMarchingCubesVertices);
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(trisCountUAV, 2);
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(prefixSumsUAV, 3);
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(verticesUAV, 5);
graphicsDevice.ImmediateContext.Dispatch((int)gridDimD.X, (int)gridDimD.Y, (int)gridDimD.Z);
graphicsDevice.ImmediateContext.CopyResource(verticesBuffer, container.Geometry);
verticesUAV.Dispose();
verticesBuffer.Dispose();
}
else
{
container.VertexCount = 0;
if (container.Geometry != null)
container.Geometry.Dispose();
}
for (int i = 0; i <= 5; i++)
{
graphicsDevice.ImmediateContext.ComputeShader.SetUnorderedAccessView(null, i);
}
prefixSumsUAV.Resource.Dispose();
prefixSumsUAV.Dispose();
noiseCube.Dispose();
noiseSRV.Resource.Dispose();
noiseSRV.Dispose();
voxelsBuffer.Dispose();
voxelsUAV.Dispose();
offsetsBuffer.Dispose();
offsetsUAV.Dispose();
trisCountBuffer.Dispose();
trisCountUAV.Dispose();
}
static void Main(string[] args)
{
const int elementCount = 16;
const int bufferSizeInBytes = elementCount * sizeof(float);
D3D.Device device = new D3D.Device(D3D.DriverType.Hardware, D3D.DeviceCreationFlags.Debug);
// The input to the computation will be a constant buffer containing
// integers (in floating point representation) from 1 to numberOfElements,
// inclusive. The compute shader itself will double these values and write
// them to the output buffer.
D3D.BufferDescription inputBufferDescription = new D3D.BufferDescription
{
BindFlags = D3D.BindFlags.ConstantBuffer,
CpuAccessFlags = D3D.CpuAccessFlags.Write,
OptionFlags = D3D.ResourceOptionFlags.None,
SizeInBytes = bufferSizeInBytes,
StructureByteStride = sizeof(float),
Usage = D3D.ResourceUsage.Dynamic,
};
D3D.Buffer inputBuffer = new D3D.Buffer(device, inputBufferDescription);
DataBox input = device.ImmediateContext.MapSubresource(inputBuffer, 0, bufferSizeInBytes, D3D.MapMode.WriteDiscard, D3D.MapFlags.None);
for (int value = 1; value <= elementCount; ++value)
input.Data.Write((float)value);
device.ImmediateContext.UnmapSubresource(inputBuffer, 0);
// A staging buffer is used to copy data between the CPU and GPU; the output
// buffer (which gets the computation results) cannot be mapped directly.
D3D.BufferDescription stagingBufferDescription = new D3D.BufferDescription
{
BindFlags = D3D.BindFlags.None,
CpuAccessFlags = D3D.CpuAccessFlags.Read,
OptionFlags = D3D.ResourceOptionFlags.StructuredBuffer,
SizeInBytes = bufferSizeInBytes,
StructureByteStride = sizeof(float),
Usage = D3D.ResourceUsage.Staging,
};
D3D.Buffer stagingBuffer = new D3D.Buffer(device, stagingBufferDescription);
// The output buffer itself, and the view required to bind it to the pipeline.
D3D.BufferDescription outputBufferDescription = new D3D.BufferDescription
{
BindFlags = D3D.BindFlags.UnorderedAccess | D3D.BindFlags.ShaderResource,
OptionFlags = D3D.ResourceOptionFlags.StructuredBuffer,
SizeInBytes = bufferSizeInBytes,
StructureByteStride = sizeof(float),
Usage = D3D.ResourceUsage.Default,
};
D3D.Buffer outputBuffer = new D3D.Buffer(device, outputBufferDescription);
D3D.UnorderedAccessViewDescription outputViewDescription = new D3D.UnorderedAccessViewDescription
{
ElementCount = elementCount,
Format = DXGI.Format.Unknown,
Dimension = D3D.UnorderedAccessViewDimension.Buffer
};
D3D.UnorderedAccessView outputView = new D3D.UnorderedAccessView(device, outputBuffer, outputViewDescription);
// Compile the shader.
ShaderBytecode computeShaderCode = ShaderBytecode.CompileFromFile("BasicComputeShader.hlsl", "main", "cs_4_0", ShaderFlags.None, EffectFlags.None);
D3D.ComputeShader computeShader = new D3D.ComputeShader(device, computeShaderCode);
device.ImmediateContext.ComputeShader.Set(computeShader);
device.ImmediateContext.ComputeShader.SetUnorderedAccessView(outputView, 0);
device.ImmediateContext.ComputeShader.SetConstantBuffer(inputBuffer, 0);
// Compute shaders execute on multiple threads at the same time. Those execution
// threads are grouped; Dispatch() indicates how many groups in the X, Y and Z
// dimension will be utilized. The shader itself specified how many threads per
// group (also in X, Y and Z dimensions) to use via the [numthreads] attribute.
// In this sample, one thread group will be used with 16 threads, each thread
// will process one element of the input data.
device.ImmediateContext.Dispatch(1, 1, 1);
device.ImmediateContext.CopyResource(outputBuffer, stagingBuffer);
DataBox output = device.ImmediateContext.MapSubresource(stagingBuffer, 0, sizeof(float) * elementCount, D3D.MapMode.Read, D3D.MapFlags.None);
Console.Write("Results:");
for (int index = 0; index < elementCount; ++index)
Console.Write(" {0}", output.Data.Read<float>());
device.ImmediateContext.UnmapSubresource(outputBuffer, 0);
Console.WriteLine();
computeShader.Dispose();
outputView.Dispose();
outputBuffer.Dispose();
stagingBuffer.Dispose();
inputBuffer.Dispose();
device.Dispose();
}