void VCoronaManager::RenderAllVisibleCoronas()
{
#ifdef SUPPORTS_CORONAS
VisRenderContext_cl* pContext = VisRenderContext_cl::GetCurrentContext();
// Determine relevant render context and visibility collector
IVisVisibilityCollector_cl *pVisCollector = pContext->GetVisibilityCollector();
if (!pVisCollector)
return;
VisRenderContext_cl *pOQContext = pVisCollector->GetOcclusionQueryRenderContext();
if (pOQContext != NULL)
pContext = pOQContext;
if ((pContext->GetRenderFlags() & VIS_RENDERCONTEXT_FLAG_USE_PIXELCOUNTER) == 0)
return;
if ((pContext->GetRenderFlags() & VIS_RENDERCONTEXT_FLAG_RENDER_CORONAS) == 0)
return;
INSERT_PERF_MARKER_SCOPE("VCoronaManager::RenderAllVisibleCoronas");
VISION_PROFILE_FUNCTION(PROFILING_CORONA_RENDER);
// Force for the queries to finish so they are available in this frame.
if (m_bTeleportedLastFrame && m_bForceQueryOnTeleport)
{
UpdateCoronas(VCUF_UPDATE | VCUF_FORCE_FETCH | VCUF_USE_OC_CONTEXT);
}
// Ensure size of corona state structure.
int iContextIndex = pContext->GetNumber();
if (iContextIndex + 1 > m_State.GetSize())
m_State.SetSize(iContextIndex + 1, -1);
VCoronaRenderContextState& state = m_State[iContextIndex];
int iCapacity = m_Instances.GetCapacity();
state.EnsureSize(iCapacity);
const int iCoronasToRender = state.m_Candidates.GetSize();
// Sort candidates by texture?
VTextureObject* pTexture = NULL;
// Render all corona components
Vision::RenderLoopHelper.BeginMeshRendering();
Vision::RenderLoopHelper.AddMeshStreams(m_spBillboardMesh,VERTEX_STREAM_POSITION);
for (int i=0; i < iCoronasToRender; ++i)
{
VCoronaCandidate& coronaCandidate = state.m_Candidates.ElementAt(i);
if (coronaCandidate.m_fCurrentVisibility > 0.0f)
{
RenderCorona (coronaCandidate, pTexture);
}
}
Vision::RenderLoopHelper.EndMeshRendering();
m_bTeleportedLastFrame = (pContext->GetCamera()->GetLastTeleported() >= pContext->GetLastRenderedFrame());
#endif
}
void VCoronaManager::UpdateCoronas(int iCoronaUpdateFlags)
{
#ifdef SUPPORTS_CORONAS
VisRenderContext_cl* pContext = VisRenderContext_cl::GetCurrentContext();
if ((iCoronaUpdateFlags & VCUF_USE_OC_CONTEXT) > 0)
{
// Determine relevant render context and visibility collector
IVisVisibilityCollector_cl *pVisCollector = pContext->GetVisibilityCollector();
if (!pVisCollector)
return;
VisRenderContext_cl *pOQContext = pVisCollector->GetOcclusionQueryRenderContext();
if (pOQContext != NULL)
pContext = pOQContext;
}
if (pContext == NULL)
return;
if ((pContext->GetRenderFlags() & VIS_RENDERCONTEXT_FLAG_USE_PIXELCOUNTER) == 0)
return;
if ((pContext->GetRenderFlags() & VIS_RENDERCONTEXT_FLAG_RENDER_CORONAS) == 0)
return;
// Get bitmask for this context.
unsigned int iRenderFilterMask = pContext->GetRenderFilterMask();
// get the collection of visible lights.
IVisVisibilityCollector_cl* pVisCollector = VisRenderContext_cl::GetCurrentContext()->GetVisibilityCollector();
if (pVisCollector == NULL)
return;
VISION_PROFILE_FUNCTION(PROFILING_CORONA_UPDATE);
// Get multi-sampling mode
unsigned int iTexelsPerPixel = 1;
VTextureObject* pDepthTex = pContext->GetDepthStencilTarget();
if(pDepthTex == NULL)
{
// If no depth stencil target is available, we might work without a renderer node and we're in the main context
if(Vision::Renderer.GetCurrentRendererNode() == NULL && pContext == VisRenderContext_cl::GetMainRenderContext())
{
// In this case get the multi-sampling type from the video config as it's used to set the actual backbuffer settings
// where the main context will render to
iTexelsPerPixel = hkvMath::Max(1, 1 << ((int)Vision::Video.GetCurrentConfig()->m_eMultiSample));
}
}
else if (pDepthTex->GetTextureType() == VTextureLoader::Texture2D)
{
iTexelsPerPixel = hkvMath::Max(1u, ((VisRenderableTexture_cl*)pDepthTex)->GetConfig()->m_iMultiSampling);
}
const VisLightSrcCollection_cl* pVisibleLights = pVisCollector->GetVisibleLights();
int iCandidates = 0;
if (pVisibleLights != NULL)
iCandidates = pVisibleLights->GetNumEntries();
// Ensure size of coronas state structure.
int iContextIndex = pContext->GetNumber();
if (iContextIndex + 1 > m_State.GetSize())
m_State.SetSize(iContextIndex + 1, -1);
VCoronaRenderContextState& state = m_State[iContextIndex];
int iCapacity = m_Instances.GetCapacity();
state.EnsureSize(iCapacity);
// Add visible lights with a lens flare component to the candidate list for this frame
if ((iCoronaUpdateFlags & VCUF_ADD) > 0)
{
for (int iCandidate = 0; iCandidate < iCandidates; ++iCandidate)
{
VisLightSource_cl* pLight = pVisibleLights->GetEntry(iCandidate);
if (pLight)
{
VCoronaComponent *pComponent = pLight->Components().GetComponentOfBaseType<VCoronaComponent>();
if (pComponent != NULL && pComponent->IsEnabled() && !state.IsBitSet(pComponent->m_iIndex))
{
// The component is not in m_Candidates yet, so we check whether it is a valid candidate
bool bIsLightOnScreen = pComponent->IsValidCandidate(pContext);
if (bIsLightOnScreen)
{
state.SetBit(pComponent->m_iIndex);
pContext->SetPixelCounterResult(pComponent->m_CoronaPixelCounter.GetNumber(), 0);
state.m_Candidates.Append(pComponent);
}
}
}
}
}
// Forces the retrieval all pending queries.
pContext->FetchPixelCounterTestResults( (iCoronaUpdateFlags & VCUF_FORCE_FETCH) > 0 );
// Retrieve Queries and update status of lens flares
if ((iCoronaUpdateFlags & VCUF_UPDATE) > 0)
{
for (int i=0; i < state.m_Candidates.GetSize(); ++i)
{
VCoronaCandidate& coronaCandidate = state.m_Candidates.ElementAt(i);
VCoronaComponent* pCorona = coronaCandidate.m_pCorona;
if (!pCorona || !pCorona->IsEnabled())
continue;
if (pCorona->GetOwner())
{
// Retrieve occlusion results of the last query
unsigned int iElementIndex = pCorona->m_CoronaPixelCounter.GetNumber();
bool bRes = !pContext->IsPixelCounterQueryInProgress(iElementIndex);
// Reschedule query if the old on could be retrieved or if a teleport forces us to re-query everything.
if (bRes | ((iCoronaUpdateFlags & VCUF_FORCE_SCHEDULE) > 0) )
pContext->SchedulePixelCounterTest(iElementIndex);
unsigned int iDrawnPixels = pContext->GetPixelCounterResult(iElementIndex) / iTexelsPerPixel;
float fVisibility = (float)iDrawnPixels / ((int)pCorona->QueryRadius * (int)pCorona->QueryRadius * 4);
// ATI fix for random insanely high return values.
if (iDrawnPixels > ((unsigned int)pCorona->QueryRadius * 2 + 1) * ((unsigned int)pCorona->QueryRadius * 2 + 1))
{
fVisibility = coronaCandidate.m_fLastVisibilityQuery;
}
if ((iCoronaUpdateFlags & VCUF_FORCE_FETCH) > 0)
{
// Force lens flare visibility to the current query value.
coronaCandidate.m_fCurrentVisibility = fVisibility;
coronaCandidate.m_fLastVisibilityQuery = fVisibility;
pCorona->UpdateVisibility(coronaCandidate.m_fLastVisibilityQuery, coronaCandidate.m_fCurrentVisibility);
}
else if (!m_bTeleportedLastFrame)
{
coronaCandidate.m_fLastVisibilityQuery = fVisibility;
pCorona->UpdateVisibility(coronaCandidate.m_fLastVisibilityQuery, coronaCandidate.m_fCurrentVisibility);
}
else
{
// if we were teleported, the last frame's query results must be invalidated
coronaCandidate.m_fCurrentVisibility = 0.0f;
coronaCandidate.m_fLastVisibilityQuery = 0.0f;
}
}
}
}
// Removes coronas that are outside the frustum and no longer visible.
if ((iCoronaUpdateFlags & VCUF_REMOVE) > 0)
{
for (int i=0; i < state.m_Candidates.GetSize();)
{
VCoronaCandidate& coronaCandidate = state.m_Candidates.ElementAt(i);
VCoronaComponent* pCorona = coronaCandidate.m_pCorona;
unsigned int iElementIndex = pCorona->m_CoronaPixelCounter.GetNumber();
// If the visibility reached zero and the corona is no longer potentially visible it is removed from the list
if (!pCorona->IsEnabled() || !pCorona->GetOwner()
|| (pCorona->GetVisibleBitmask() & iRenderFilterMask) == 0
|| (((VisLightSource_cl*)pCorona->GetOwner())->GetVisibleBitmask() & iRenderFilterMask) == 0
|| ( coronaCandidate.m_fCurrentVisibility == 0.0f && !pCorona->IsValidCandidate(pContext) ) )
{
state.RemoveBit(pCorona->m_iIndex);
state.m_Candidates.SetAt(i, state.m_Candidates.GetAt(state.m_Candidates.GetSize()-1) );
state.m_Candidates.RemoveAt(state.m_Candidates.GetSize() -1);
// Reset cache to zero, so we don't see the lens flare once it enters the frustum again.
pContext->SetPixelCounterResult(iElementIndex, 0);
}
else
{
++i;
}
}
}
#endif
}
