internal static void Init()
{
MyGPUEmitters.Init();
m_resetSystem = true;
m_csInitDeadList = MyShaders.CreateCs("Transparent/GPUParticles/InitDeadList.hlsl", null);
m_csResetParticles = MyShaders.CreateCs("Transparent/GPUParticles/Reset.hlsl", null);
m_csEmit = MyShaders.CreateCs("Transparent/GPUParticles/Emit.hlsl", null);
m_csEmitSkipFix = MyShaders.CreateCs("Transparent/GPUParticles/EmitSkipFix.hlsl", null);
m_csSimulate = MyShaders.CreateCs("Transparent/GPUParticles/Simulation.hlsl", null);
var macrosRender = new[] { new ShaderMacro("STREAKS", null), new ShaderMacro("LIT_PARTICLE", null) };
var macrosRenderOIT = new[] { new ShaderMacro("STREAKS", null), new ShaderMacro("LIT_PARTICLE", null), new ShaderMacro("OIT", null) };
m_vs = MyShaders.CreateVs("Transparent/GPUParticles/Render.hlsl", macrosRender);
m_ps = MyShaders.CreatePs("Transparent/GPUParticles/Render.hlsl", macrosRender);
m_psOIT = MyShaders.CreatePs("Transparent/GPUParticles/Render.hlsl", macrosRenderOIT);
var macroDebug = new[] { new ShaderMacro("DEBUG_UNIFORM_ACCUM", null) };
m_psDebugUniformAccum = MyShaders.CreatePs("Transparent/GPUParticles/Render.hlsl", MyShaders.ConcatenateMacros(macrosRender, macroDebug));
m_psDebugUniformAccumOIT = MyShaders.CreatePs("Transparent/GPUParticles/Render.hlsl", MyShaders.ConcatenateMacros(macrosRenderOIT, macroDebug));
InitDevice();
}
internal static void Init()
{
MyGPUEmitters.Init();
m_resetSystem = true;
m_csInitDeadList = MyShaders.CreateCs("Particles/InitDeadList.hlsl", null);
m_csResetParticles = MyShaders.CreateCs("Particles/Reset.hlsl", null);
m_csEmit = MyShaders.CreateCs("Particles/Emit.hlsl", null);
m_csSimulate = MyShaders.CreateCs("Particles/Simulation.hlsl", null);
var macrosRender = new[] { new ShaderMacro("STREAKS", null), new ShaderMacro("LIT_PARTICLE", null) };
var macrosRenderOIT = new[] { new ShaderMacro("STREAKS", null), new ShaderMacro("LIT_PARTICLE", null), new ShaderMacro("OIT", null) };
m_vs = MyShaders.CreateVs("Particles/Render.hlsl", macrosRender);
m_ps = MyShaders.CreatePs("Particles/Render.hlsl", macrosRender);
m_psOIT = MyShaders.CreatePs("Particles/Render.hlsl", macrosRenderOIT);
InitDevice();
}
internal static void Run(ISrvBindable depthRead, ISrvBindable gbufferNormalsRead)
{
// The maximum number of supported GPU particles
ISrvBindable textureArraySrv;
int emitterCount = MyGPUEmitters.Gather(m_emitterData, out textureArraySrv);
if (emitterCount == 0)
{
return;
}
// Unbind current targets while we run the compute stages of the system
//RC.DeviceContext.OutputMerger.SetTargets(null);
// global GPU particles setup
RC.SetDepthStencilState(MyDepthStencilStateManager.DefaultDepthState);
RC.SetRasterizerState(MyRasterizerStateManager.NocullRasterizerState);
RC.SetInputLayout(null);
RC.ComputeShader.SetConstantBuffer(MyCommon.FRAME_SLOT, MyCommon.FrameConstants);
RC.ComputeShader.SetSamplers(0, MySamplerStateManager.StandardSamplers);
RC.PixelShader.SetSamplers(0, MySamplerStateManager.StandardSamplers);
RC.AllShaderStages.SetConstantBuffer(4, MyRender11.DynamicShadows.ShadowCascades.CascadeConstantBuffer);
RC.VertexShader.SetSampler(MyCommon.SHADOW_SAMPLER_SLOT, MySamplerStateManager.Shadowmap);
RC.VertexShader.SetSrv(MyCommon.CASCADES_SM_SLOT, MyRender11.DynamicShadows.ShadowCascades.CascadeShadowmapArray);
RC.VertexShader.SetSamplers(0, MySamplerStateManager.StandardSamplers);
// If we are resetting the particle system, then initialize the dead list
if (m_resetSystem)
{
ResetInternal();
m_resetSystem = false;
}
MyGpuProfiler.IC_BeginBlock("Emit");
// Emit particles into the system
Emit(emitterCount, m_emitterData, depthRead);
MyGpuProfiler.IC_EndBlock();
// Run the simulation for this frame
MyGpuProfiler.IC_BeginBlock("Simulate");
Simulate(depthRead, gbufferNormalsRead);
MyGpuProfiler.IC_EndBlock();
// Copy the atomic counter in the alive list UAV into a constant buffer for access by subsequent passes
RC.CopyStructureCount(m_activeListConstantBuffer, 0, m_aliveIndexBuffer);
// Only read number of alive and dead particle back to the CPU in debug as we don't want to stall the GPU in release code
ProfilerShort.Begin("Debug - ReadCounter");
MyGpuProfiler.IC_BeginBlock("Debug - ReadCounter");
int numActiveParticlesAfterSimulation = ReadCounter(m_aliveIndexBuffer);
MyGpuProfiler.IC_EndBlock();
ProfilerShort.End();
MyGpuProfiler.IC_BeginBlock("Render");
Render(textureArraySrv, depthRead);
MyGpuProfiler.IC_EndBlock();
RC.ComputeShader.SetSamplers(0, MySamplerStateManager.StandardSamplers);
MyStatsDisplay.Write("GPU particles", "Live #", numActiveParticlesAfterSimulation);
}
internal static void OnSessionEnd()
{
MyGPUEmitters.OnSessionEnd();
m_resetSystem = true;
}
internal static void Run(MyBindableResource depthRead)
{
// The maximum number of supported GPU particles
SharpDX.Direct3D11.ShaderResourceView textureArraySRV;
int emitterCount = MyGPUEmitters.Gather(m_emitterData, out textureArraySRV);
if (emitterCount == 0)
{
return;
}
// Unbind current targets while we run the compute stages of the system
//RC.DeviceContext.OutputMerger.SetTargets(null);
// global GPU particles setup
RC.SetDS(MyDepthStencilState.DefaultDepthState);
RC.SetRS(MyRender11.m_nocullRasterizerState);
RC.SetIL(null);
RC.CSSetCB(MyCommon.FRAME_SLOT, MyCommon.FrameConstants);
RC.DeviceContext.ComputeShader.SetSamplers(0, SamplerStates.StandardSamplers);
RC.DeviceContext.PixelShader.SetSamplers(0, SamplerStates.StandardSamplers);
RC.SetCB(4, MyRender11.DynamicShadows.ShadowCascades.CascadeConstantBuffer);
RC.DeviceContext.VertexShader.SetSampler(MyCommon.SHADOW_SAMPLER_SLOT, SamplerStates.m_shadowmap);
RC.DeviceContext.VertexShader.SetShaderResource(MyCommon.CASCADES_SM_SLOT, MyRender11.DynamicShadows.ShadowCascades.CascadeShadowmapArray.SRV);
RC.DeviceContext.VertexShader.SetSamplers(0, SamplerStates.StandardSamplers);
// If we are resetting the particle system, then initialize the dead list
if (m_resetSystem)
{
ResetInternal();
m_resetSystem = false;
}
MyGpuProfiler.IC_BeginBlock("Emit");
// Emit particles into the system
Emit(emitterCount, m_emitterData);
MyGpuProfiler.IC_EndBlock();
// Run the simulation for this frame
MyGpuProfiler.IC_BeginBlock("Simulate");
Simulate(depthRead);
MyGpuProfiler.IC_EndBlock();
// Copy the atomic counter in the alive list UAV into a constant buffer for access by subsequent passes
RC.DeviceContext.CopyStructureCount(m_activeListConstantBuffer, 0, m_aliveIndexBuffer.m_UAV);
// Only read number of alive and dead particle back to the CPU in debug as we don't want to stall the GPU in release code
#if DEBUG
m_numDeadParticlesAfterSimulation = ReadCounter(m_deadListBuffer);
m_numActiveParticlesAfterSimulation = ReadCounter(m_aliveIndexBuffer);
#endif
MyGpuProfiler.IC_BeginBlock("Render");
Render(textureArraySRV, depthRead);
MyGpuProfiler.IC_EndBlock();
RC.DeviceContext.ComputeShader.SetSamplers(0, SamplerStates.StandardSamplers);
/*Debug.WriteLine(string.Format("dead particles @ start {0} dead after emit {1} dead after sim {2} active after sim {3}",
* m_numDeadParticlesOnInit, m_numDeadParticlesAfterEmit,
* m_numDeadParticlesAfterSimulation, m_numActiveParticlesAfterSimulation));*/
}