[59] | 1 | #include "StopAndWaitCullingManager.h" |
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[86] | 2 | #include <windows.h> |
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[59] | 3 | |
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| 4 | namespace GtpVisibility { |
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| 5 | |
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| 6 | //----------------------------------------------------------------------- |
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| 7 | void StopAndWaitCullingManager::RenderScene() |
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| 8 | { |
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| 9 | mNumFrustumCulledNodes = mNumQueryCulledNodes = 0; |
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[85] | 10 | //OutputDebugString("Stop and Wait Culling\n"); |
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[59] | 11 | |
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| 12 | while (!mHierarchyInterface->GetQueue()->empty()) |
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| 13 | { |
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| 14 | HierarchyNode *node = mHierarchyInterface->GetQueue()->top(); |
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| 15 | mHierarchyInterface->GetQueue()->pop(); |
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| 16 | |
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| 17 | // interesting for visualization purpose |
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| 18 | mHierarchyInterface->SetNodeVisible(node, false); |
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| 19 | mHierarchyInterface->SetLastVisited(node, mHierarchyInterface->GetFrameId()); |
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| 20 | |
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| 21 | bool intersects = false; |
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| 22 | |
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[74] | 23 | if (!mHierarchyInterface->CheckFrustumVisible(node, intersects)) |
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[59] | 24 | { |
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| 25 | mNumFrustumCulledNodes ++; |
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| 26 | } |
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[74] | 27 | else |
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[59] | 28 | { |
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[74] | 29 | //if intersects near plane => skip occlusion query because wrong results possible |
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| 30 | if (intersects) |
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| 31 | { |
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| 32 | mHierarchyInterface->SetNodeVisible(node, true); |
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| 33 | mHierarchyInterface->TraverseNode(node); |
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| 34 | continue; |
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| 35 | } |
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[59] | 36 | |
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[86] | 37 | unsigned int visiblePixels = 0; |
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| 38 | |
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| 39 | mHierarchyInterface->IssueOcclusionQuery(node)->GetQueryResult(visiblePixels, true); |
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| 40 | |
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[74] | 41 | // node visible |
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[86] | 42 | if (visiblePixels > mVisibilityThreshold) |
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[74] | 43 | { |
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| 44 | mHierarchyInterface->TraverseNode(node); |
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| 45 | } |
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| 46 | else |
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| 47 | { |
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| 48 | mNumQueryCulledNodes ++; |
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| 49 | } |
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[59] | 50 | } |
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| 51 | } |
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| 52 | } |
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| 53 | } // namespace GtpVisibility |
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