/// <summary>
/// Called when [render].
/// </summary>
/// <param name="context">The context.</param>
/// <param name="deviceContext">The device context.</param>
protected override void OnRender(IRenderContext context, DeviceContextProxy deviceContext)
{
perFrameCB.UploadDataToBuffer(deviceContext, ref FrameVariables);
// Clear binding
updatePass.GetShader(ShaderStage.Compute).BindUAV(deviceContext, currentStateSlot, null);
updatePass.GetShader(ShaderStage.Compute).BindUAV(deviceContext, newStateSlot, null);
OnTextureChanged();
OnBlendStateChanged();
// Render existing particles
renderPass.BindShader(deviceContext);
renderPass.BindStates(deviceContext, StateType.RasterState | StateType.DepthStencilState);
renderPass.GetShader(ShaderStage.Vertex).BindTexture(deviceContext, renderStateSlot, BufferProxies[0].SRV);
renderPass.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, textureView);
renderPass.GetShader(ShaderStage.Pixel).BindSampler(deviceContext, samplerSlot, textureSampler);
deviceContext.DeviceContext.InputAssembler.InputLayout = VertexLayout;
deviceContext.DeviceContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.PointList;
int firstSlot = 0;
InstanceBuffer?.AttachBuffer(deviceContext, ref firstSlot);
deviceContext.DeviceContext.OutputMerger.SetBlendState(blendState, null, 0xFFFFFFFF);
deviceContext.DeviceContext.DrawInstancedIndirect(particleCountGSIABuffer.Buffer, 0);
InvalidateRenderer();//Since particle is running all the time. Invalidate once finished rendering
}
/// <summary>
/// Runs the specified device context.
/// </summary>
/// <param name="deviceContext">The device context.</param>
/// <param name="iteration">The iteration.</param>
/// <param name="initVerticalIter">The initialize vertical iter.</param>
/// <param name="initHorizontalIter">The initialize horizontal iter.</param>
public virtual void Run(DeviceContextProxy deviceContext, int iteration, int initVerticalIter = 0, int initHorizontalIter = 0)
{
deviceContext.DeviceContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleStrip;
deviceContext.DeviceContext.PixelShader.SetSampler(samplerSlot, sampler);
if (!screenBlurPassVertical.IsNULL)
{
screenBlurPassVertical.BindShader(deviceContext);
screenBlurPassVertical.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
for (int i = initVerticalIter; i < iteration; ++i)
{
SwapTargets();
BindTarget(null, renderTargetBlur[0], deviceContext, texture2DDesc.Width, texture2DDesc.Height);
screenBlurPassVertical.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, renderTargetBlur[1].TextureView);
deviceContext.DeviceContext.Draw(4, 0);
}
}
if (!screenBlurPassHorizontal.IsNULL)
{
screenBlurPassHorizontal.BindShader(deviceContext);
screenBlurPassHorizontal.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
for (int i = initHorizontalIter; i < iteration; ++i)
{
SwapTargets();
BindTarget(null, renderTargetBlur[0], deviceContext, texture2DDesc.Width, texture2DDesc.Height);
screenBlurPassHorizontal.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, renderTargetBlur[1].TextureView);
deviceContext.DeviceContext.Draw(4, 0);
}
}
deviceContext.DeviceContext.PixelShader.SetShaderResource(textureSlot, null);
}
protected override void OnRender(IRenderContext renderContext, DeviceContextProxy deviceContext)
{
base.OnRender(renderContext, deviceContext);
// Draw backface into stencil buffer
DepthStencilView dsView;
var renderTargets = deviceContext.DeviceContext.OutputMerger.GetRenderTargets(1, out dsView);
if (dsView == null)
{
return;
}
deviceContext.DeviceContext.ClearDepthStencilView(dsView, DepthStencilClearFlags.Stencil, 0, 0);
deviceContext.DeviceContext.OutputMerger.SetRenderTargets(dsView, new RenderTargetView[0]);//Remove render target
deviceContext.SetRasterState(backfaceRasterState);
drawBackfacePass.BindShader(deviceContext);
drawBackfacePass.BindStates(deviceContext, StateType.BlendState);
deviceContext.SetDepthStencilState(drawBackfacePass.DepthStencilState, 1); //Draw backface onto stencil buffer, set value to 1
OnDraw(deviceContext, InstanceBuffer);
//Draw full screen quad to fill cross section
deviceContext.DeviceContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleStrip;
deviceContext.SetRasterState(RasterState);
drawScreenQuadPass.BindShader(deviceContext);
drawScreenQuadPass.BindStates(deviceContext, StateType.BlendState);
deviceContext.DeviceContext.OutputMerger.SetRenderTargets(dsView, renderTargets); //Rebind render target
deviceContext.SetDepthStencilState(drawScreenQuadPass.DepthStencilState, 1); //Only pass stencil buffer test if value is 1
deviceContext.DeviceContext.Draw(4, 0);
//Decrement ref count. See OutputMerger.GetRenderTargets remarks
dsView.Dispose();
foreach (var t in renderTargets)
{
t.Dispose();
}
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="deviceContext"></param>
protected override void OnUpdate(IRenderContext context, DeviceContextProxy deviceContext)
{
UpdateTime(context, ref totalElapsed);
//Set correct instance count from instance buffer
drawArgument.InstanceCount = InstanceBuffer == null || !InstanceBuffer.HasElements ? 1 : (uint)InstanceBuffer.Buffer.ElementCount;
//Upload the draw argument
particleCountGSIABuffer.UploadDataToBuffer(deviceContext, ref drawArgument);
updatePass.BindShader(deviceContext);
updatePass.GetShader(ShaderStage.Compute).BindUAV(deviceContext, currentStateSlot, BufferProxies[0].UAV);
updatePass.GetShader(ShaderStage.Compute).BindUAV(deviceContext, newStateSlot, BufferProxies[1].UAV);
if (isRestart)
{
FrameVariables.NumParticles = 0;
perFrameCB.UploadDataToBuffer(deviceContext, ref FrameVariables);
// Call ComputeShader to add initial particles
deviceContext.DeviceContext.Dispatch(1, 1, 1);
isRestart = false;
}
else
{
#region Get consume buffer count
// Get consume buffer count.
//Due to some intel integrated graphic card having issue copy structure count directly into constant buffer.
//Has to use staging buffer to read and pass into constant buffer
FrameVariables.NumParticles = (uint)ReadCount("", deviceContext, BufferProxies[0]);
perFrameCB.UploadDataToBuffer(deviceContext, ref FrameVariables);
#endregion
deviceContext.DeviceContext.Dispatch(Math.Max(1, (int)Math.Ceiling((double)FrameVariables.NumParticles / 512)), 1, 1);
// Get append buffer count
BufferProxies[1].CopyCount(deviceContext, particleCountGSIABuffer.Buffer, 0);
}
#if OUTPUTDEBUGGING
ReadCount("UAV 0", deviceContext, BufferProxies[0].UAV);
#endif
if (totalElapsed > InsertElapseThrottle)
{
insertCB.UploadDataToBuffer(deviceContext, ref InsertVariables);
// Add more particles
insertPass.BindShader(deviceContext);
insertPass.GetShader(ShaderStage.Compute).BindUAV(deviceContext, newStateSlot, BufferProxies[1].UAV);
deviceContext.DeviceContext.Dispatch(1, 1, 1);
totalElapsed = 0;
#if OUTPUTDEBUGGING
ReadCount("UAV 1", deviceContext, BufferProxies[1].UAV);
#endif
}
// Swap UAV buffers for next frame
var bproxy = BufferProxies[0];
BufferProxies[0] = BufferProxies[1];
BufferProxies[1] = bproxy;
}
protected override void OnRender(IRenderContext context, DeviceContextProxy deviceContext)
{
#region Initialize textures
if (offScreenRenderTargets.Count == 0 ||
width != (int)(context.ActualWidth) ||
height != (int)(context.ActualHeight))
{
width = (int)(context.ActualWidth);
height = (int)(context.ActualHeight);
for (int i = 0; i < offScreenRenderTargets.Count; ++i)
{
var target = offScreenRenderTargets[i];
RemoveAndDispose(ref target);
}
offScreenRenderTargets.Clear();
int w = width;
int h = height;
int count = 0;
while (w > 1 && h > 1 && count < Math.Max(0, MaximumDownSamplingStep) + 1)
{
var target = Collect(new PostEffectBlurCore(global::SharpDX.DXGI.Format.B8G8R8A8_UNorm, blurPassVertical, blurPassHorizontal, textureSlot, samplerSlot,
DefaultSamplers.LinearSamplerClampAni4, EffectTechnique.EffectsManager));
target.Resize(Device, w, h);
offScreenRenderTargets.Add(target);
w >>= 2;
h >>= 2;
++count;
}
}
#endregion
#region Render objects onto offscreen texture
var renderTargets = deviceContext.DeviceContext.OutputMerger.GetRenderTargets(1);
using (var resource1 = renderTargets[0].Resource)
{
using (var resource2 = offScreenRenderTargets[0].CurrentRTV.Resource)
{
deviceContext.DeviceContext.ResolveSubresource(resource1, 0, resource2, 0, global::SharpDX.DXGI.Format.B8G8R8A8_UNorm);
}
}
//Decrement ref count. See OutputMerger.GetRenderTargets remarks
foreach (var t in renderTargets)
{
t.Dispose();
}
#endregion
deviceContext.DeviceContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleStrip;
#region Do Bloom Pass
deviceContext.DeviceContext.PixelShader.SetSampler(samplerSlot, sampler);
//Extract bloom samples
BindTarget(null, offScreenRenderTargets[0].NextRTV, deviceContext, offScreenRenderTargets[0].Width, offScreenRenderTargets[0].Height, false);
screenQuadPass.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, offScreenRenderTargets[0].CurrentSRV);
screenQuadPass.BindShader(deviceContext);
screenQuadPass.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
deviceContext.DeviceContext.Draw(4, 0);
offScreenRenderTargets[0].SwapTargets();
// Down sampling
screenQuadCopy.BindShader(deviceContext);
screenQuadCopy.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
for (int i = 1; i < offScreenRenderTargets.Count; ++i)
{
BindTarget(null, offScreenRenderTargets[i].CurrentRTV, deviceContext, offScreenRenderTargets[i].Width, offScreenRenderTargets[i].Height, false);
screenQuadCopy.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, offScreenRenderTargets[i - 1].CurrentSRV);
deviceContext.DeviceContext.Draw(4, 0);
}
for (int i = offScreenRenderTargets.Count - 1; i >= 1; --i)
{
//Run blur pass
offScreenRenderTargets[i].Run(deviceContext, NumberOfBlurPass);
//Up sampling
screenOutlinePass.BindShader(deviceContext);
screenOutlinePass.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
BindTarget(null, offScreenRenderTargets[i - 1].CurrentRTV, deviceContext, offScreenRenderTargets[i - 1].Width, offScreenRenderTargets[i - 1].Height, false);
screenOutlinePass.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, offScreenRenderTargets[i].CurrentSRV);
deviceContext.DeviceContext.Draw(4, 0);
}
offScreenRenderTargets[0].Run(deviceContext, NumberOfBlurPass);
#endregion
#region Draw outline onto original target
context.RenderHost.SetDefaultRenderTargets(false);
screenOutlinePass.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, offScreenRenderTargets[0].CurrentSRV);
screenOutlinePass.BindShader(deviceContext);
screenOutlinePass.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
deviceContext.DeviceContext.Draw(4, 0);
screenOutlinePass.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, null);
#endregion
}
protected override void OnRender(IRenderContext context, DeviceContextProxy deviceContext)
{
#region Initialize textures
if (renderTargetFull == null ||
renderTargetDesc.Width != (int)(context.ActualWidth) ||
renderTargetDesc.Height != (int)(context.ActualHeight))
{
depthdesc.Width = renderTargetDesc.Width = (int)(context.ActualWidth);
depthdesc.Height = renderTargetDesc.Height = (int)(context.ActualHeight);
RemoveAndDispose(ref renderTargetFull);
RemoveAndDispose(ref depthStencilBuffer);
renderTargetFull = Collect(new ShaderResourceViewProxy(deviceContext.DeviceContext.Device, renderTargetDesc));
renderTargetFull.CreateView(renderTargetViewDesc);
renderTargetFull.CreateView(targetResourceViewDesc);
depthStencilBuffer = Collect(new ShaderResourceViewProxy(deviceContext.DeviceContext.Device, depthdesc));
depthStencilBuffer.CreateView(depthStencilViewDesc);
blurCore.Resize(deviceContext.DeviceContext.Device,
renderTargetDesc.Width / downSamplingScale,
renderTargetDesc.Height / downSamplingScale);
}
#endregion
#region Render objects onto offscreen texture
deviceContext.DeviceContext.ClearDepthStencilView(depthStencilBuffer, DepthStencilClearFlags.Stencil, 0, 0);
BindTarget(depthStencilBuffer, renderTargetFull, deviceContext, renderTargetDesc.Width, renderTargetDesc.Height);
context.IsCustomPass = true;
bool hasMesh = false;
for (int i = 0; i < context.RenderHost.PerFrameGeneralCoresWithPostEffect.Count; ++i)
{
IEffectAttributes effect;
var mesh = context.RenderHost.PerFrameGeneralCoresWithPostEffect[i];
if (mesh.TryGetPostEffect(EffectName, out effect))
{
object attribute;
var color = Color;
if (effect.TryGetAttribute(EffectAttributeNames.ColorAttributeName, out attribute) && attribute is string colorStr)
{
color = colorStr.ToColor4();
}
if (modelStruct.Color != color)
{
modelStruct.Color = color;
OnUploadPerModelConstantBuffers(deviceContext);
}
context.CustomPassName = DefaultPassNames.EffectOutlineP1;
var pass = mesh.EffectTechnique[DefaultPassNames.EffectOutlineP1];
if (pass.IsNULL)
{
continue;
}
pass.BindShader(deviceContext);
pass.BindStates(deviceContext, StateType.BlendState);
deviceContext.SetDepthStencilState(pass.DepthStencilState, 1);
mesh.Render(context, deviceContext);
hasMesh = true;
}
}
context.IsCustomPass = false;
#endregion
if (hasMesh)
{
deviceContext.DeviceContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleStrip;
deviceContext.DeviceContext.PixelShader.SetSampler(samplerSlot, sampler);
#region Do Blur Pass
BindTarget(null, blurCore.CurrentRTV, deviceContext, blurCore.Width, blurCore.Height, true);
blurPassVertical.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, renderTargetFull);
blurPassVertical.BindShader(deviceContext);
blurPassVertical.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
deviceContext.DeviceContext.Draw(4, 0);
blurCore.Run(deviceContext, NumberOfBlurPass, 1, 0);//Already blur once on vertical, pass 1 as initial index.
#endregion
#region Draw back with stencil test
BindTarget(depthStencilBuffer, renderTargetFull, deviceContext, renderTargetDesc.Width, renderTargetDesc.Height);
screenQuadPass.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, blurCore.CurrentSRV);
screenQuadPass.BindShader(deviceContext);
deviceContext.SetDepthStencilState(screenQuadPass.DepthStencilState, 0);
screenQuadPass.BindStates(deviceContext, StateType.BlendState | StateType.RasterState);
deviceContext.DeviceContext.Draw(4, 0);
#endregion
#region Draw outline onto original target
context.RenderHost.SetDefaultRenderTargets(false);
screenOutlinePass.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, renderTargetFull);
screenOutlinePass.BindShader(deviceContext);
screenOutlinePass.BindStates(deviceContext, StateType.BlendState | StateType.RasterState | StateType.DepthStencilState);
deviceContext.DeviceContext.Draw(4, 0);
screenOutlinePass.GetShader(ShaderStage.Pixel).BindTexture(deviceContext, textureSlot, null);
#endregion
}
else
{
context.RenderHost.SetDefaultRenderTargets(false);
}
}