void ParticleEffects::Render( CommandContext& Context, const Camera& Camera, ColorBuffer& ColorTarget, DepthBuffer& DepthTarget, ColorBuffer& LinearDepth)
{
if (!Enable || !s_InitComplete || ParticleEffectsActive.size() == 0)
return;
ScopedTimer _prof(L"Particle Render", Context);
uint32_t Width = (uint32_t)ColorTarget.GetWidth();
uint32_t Height = (uint32_t)ColorTarget.GetHeight();
uint32_t BinsPerRow = 4 * DivideByMultiple(Width, 4 * BIN_SIZE_X);
s_ChangesPerView.gViewProj = Camera.GetViewProjMatrix();
s_ChangesPerView.gInvView = Invert(Camera.GetViewMatrix());
float HCot = Camera.GetProjMatrix().GetX().GetX();
float VCot = Camera.GetProjMatrix().GetY().GetY();
s_ChangesPerView.gVertCotangent = VCot;
s_ChangesPerView.gAspectRatio = HCot / VCot;
s_ChangesPerView.gRcpFarZ = 1.0f / Camera.GetFarClip();
s_ChangesPerView.gInvertZ = Camera.GetNearClip() / (Camera.GetFarClip() - Camera.GetNearClip());
s_ChangesPerView.gBufferWidth = (float)ColorTarget.GetWidth();
s_ChangesPerView.gBufferHeight = (float)ColorTarget.GetHeight();
s_ChangesPerView.gRcpBufferWidth = 1.0f / ColorTarget.GetWidth();
s_ChangesPerView.gRcpBufferHeight = 1.0f / ColorTarget.GetHeight();
s_ChangesPerView.gBinsPerRow = BinsPerRow;
s_ChangesPerView.gTileRowPitch = BinsPerRow * TILES_PER_BIN_X;
s_ChangesPerView.gTilesPerRow = DivideByMultiple(Width, TILE_SIZE);
s_ChangesPerView.gTilesPerCol = DivideByMultiple(Height, TILE_SIZE);
if (EnableTiledRendering)
{
ComputeContext& CompContext = Context.GetComputeContext();
CompContext.ClearUAV(BinCounters[0]);
CompContext.ClearUAV(BinCounters[1]);
CompContext.SetRootSignature(RootSig);
CompContext.SetDynamicConstantBufferView(1, sizeof(CBChangesPerView), &s_ChangesPerView);
RenderTiles(CompContext, ColorTarget, LinearDepth);
}
else
{
GraphicsContext& GrContext = Context.GetGraphicsContext();
GrContext.SetRootSignature(RootSig);
GrContext.SetDynamicConstantBufferView(1, sizeof(CBChangesPerView), &s_ChangesPerView);
RenderSprites(GrContext, ColorTarget, DepthTarget, LinearDepth);
}
}
void ParticleEffects::Render( CommandContext& Context, const Camera& Camera, ColorBuffer& ColorTarget, DepthBuffer& DepthTarget, ColorBuffer& LinearDepth)
{
if (!Enable || !s_InitComplete || ParticleEffectsActive.size() == 0)
return;
uint32_t Width = (uint32_t)ColorTarget.GetWidth();
uint32_t Height = (uint32_t)ColorTarget.GetHeight();
ASSERT(
Width == DepthTarget.GetWidth() &&
Height == DepthTarget.GetHeight() &&
Width == LinearDepth.GetWidth() &&
Height == LinearDepth.GetHeight(),
"There is a mismatch in buffer dimensions for rendering particles"
);
ScopedTimer _prof(L"Particle Render", Context);
uint32_t BinsPerRow = 4 * DivideByMultiple(Width, 4 * BIN_SIZE_X);
s_ChangesPerView.gViewProj = Camera.GetViewProjMatrix();
s_ChangesPerView.gInvView = Invert(Camera.GetViewMatrix());
float HCot = Camera.GetProjMatrix().GetX().GetX();
float VCot = Camera.GetProjMatrix().GetY().GetY();
s_ChangesPerView.gVertCotangent = VCot;
s_ChangesPerView.gAspectRatio = HCot / VCot;
s_ChangesPerView.gRcpFarZ = 1.0f / Camera.GetFarClip();
s_ChangesPerView.gInvertZ = Camera.GetNearClip() / (Camera.GetFarClip() - Camera.GetNearClip());
s_ChangesPerView.gBufferWidth = (float)Width;
s_ChangesPerView.gBufferHeight = (float)Height;
s_ChangesPerView.gRcpBufferWidth = 1.0f / Width;
s_ChangesPerView.gRcpBufferHeight = 1.0f / Height;
s_ChangesPerView.gBinsPerRow = BinsPerRow;
s_ChangesPerView.gTileRowPitch = BinsPerRow * TILES_PER_BIN_X;
s_ChangesPerView.gTilesPerRow = DivideByMultiple(Width, TILE_SIZE);
s_ChangesPerView.gTilesPerCol = DivideByMultiple(Height, TILE_SIZE);
// For now, UAV load support for R11G11B10 is required to read-modify-write the color buffer, but
// the compositing could be deferred.
WARN_ONCE_IF(EnableTiledRendering && !g_bTypedUAVLoadSupport_R11G11B10_FLOAT,
"Unable to composite tiled particles without support for R11G11B10F UAV loads");
EnableTiledRendering = EnableTiledRendering && g_bTypedUAVLoadSupport_R11G11B10_FLOAT;
if (EnableTiledRendering)
{
ComputeContext& CompContext = Context.GetComputeContext();
CompContext.TransitionResource(ColorTarget, D3D12_RESOURCE_STATE_UNORDERED_ACCESS);
CompContext.TransitionResource(BinCounters[0], D3D12_RESOURCE_STATE_UNORDERED_ACCESS);
CompContext.TransitionResource(BinCounters[1], D3D12_RESOURCE_STATE_UNORDERED_ACCESS, true);
CompContext.ClearUAV(BinCounters[0]);
CompContext.ClearUAV(BinCounters[1]);
CompContext.SetRootSignature(RootSig);
CompContext.SetDynamicConstantBufferView(1, sizeof(CBChangesPerView), &s_ChangesPerView);
RenderTiles(CompContext, ColorTarget, LinearDepth);
CompContext.InsertUAVBarrier(ColorTarget);
}
else
{
GraphicsContext& GrContext = Context.GetGraphicsContext();
GrContext.SetRootSignature(RootSig);
GrContext.SetDynamicConstantBufferView(1, sizeof(CBChangesPerView), &s_ChangesPerView);
RenderSprites(GrContext, ColorTarget, DepthTarget, LinearDepth);
}
}