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character instance sorting to reduce overdraw

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This commit is contained in:
d1str4ught
2026-01-30 02:46:33 +01:00
parent eadd6fa878
commit 1eb9743742
1 changed files with 30 additions and 3 deletions
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33
src/UserInterface/PythonCharacterManager.cpp
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@@ -422,11 +422,24 @@ bool CPythonCharacterManager::IsDeadVID(DWORD dwVID)
return false;
}
// let's sort character instances by their distance to the camera
// to avoid overdrawing
struct LessCharacterInstancePtrRenderOrder
{
D3DXVECTOR3 v3CameraPosition;
bool operator() (CInstanceBase* pkLeft, CInstanceBase* pkRight)
{
return pkLeft->LessRenderOrder(pkRight);
D3DXVECTOR3 v3Left, v3Right;
pkLeft->NEW_GetPixelPosition(&v3Left);
pkRight->NEW_GetPixelPosition(&v3Right);
v3Left.y *= -1;
v3Right.y *= -1;
D3DXVECTOR3 v3LeftDiff = v3Left - v3CameraPosition;
D3DXVECTOR3 v3RightDiff = v3Right - v3CameraPosition;
return D3DXVec3Dot(&v3LeftDiff, &v3LeftDiff) < D3DXVec3Dot(&v3RightDiff, &v3RightDiff);
}
};
@@ -459,12 +472,19 @@ void CPythonCharacterManager::__RenderSortedAliveActorList()
static std::vector<CInstanceBase*> s_kVct_pkInstAliveSort;
s_kVct_pkInstAliveSort.clear();
CCamera* pCamera = CCameraManager::instance().GetCurrentCamera();
if (!pCamera)
return;
TCharacterInstanceMap& rkMap_pkInstAlive=m_kAliveInstMap;
TCharacterInstanceMap::iterator i;
for (i=rkMap_pkInstAlive.begin(); i!=rkMap_pkInstAlive.end(); ++i)
s_kVct_pkInstAliveSort.push_back(i->second);
std::sort(s_kVct_pkInstAliveSort.begin(), s_kVct_pkInstAliveSort.end(), LessCharacterInstancePtrRenderOrder());
LessCharacterInstancePtrRenderOrder fSortFunc;
fSortFunc.v3CameraPosition = pCamera->GetEye();
std::sort(s_kVct_pkInstAliveSort.begin(), s_kVct_pkInstAliveSort.end(), fSortFunc);
std::for_each(s_kVct_pkInstAliveSort.begin(), s_kVct_pkInstAliveSort.end(), FCharacterInstanceRender());
std::for_each(s_kVct_pkInstAliveSort.begin(), s_kVct_pkInstAliveSort.end(), FCharacterInstanceRenderTrace());
}
@@ -474,12 +494,19 @@ void CPythonCharacterManager::__RenderSortedDeadActorList()
static std::vector<CInstanceBase*> s_kVct_pkInstDeadSort;
s_kVct_pkInstDeadSort.clear();
CCamera* pCamera = CCameraManager::instance().GetCurrentCamera();
if (!pCamera)
return;
TCharacterInstanceList& rkLst_pkInstDead=m_kDeadInstList;
TCharacterInstanceList::iterator i;
for (i=rkLst_pkInstDead.begin(); i!=rkLst_pkInstDead.end(); ++i)
s_kVct_pkInstDeadSort.push_back(*i);
std::sort(s_kVct_pkInstDeadSort.begin(), s_kVct_pkInstDeadSort.end(), LessCharacterInstancePtrRenderOrder());
LessCharacterInstancePtrRenderOrder fSortFunc;
fSortFunc.v3CameraPosition = pCamera->GetEye();
std::sort(s_kVct_pkInstDeadSort.begin(), s_kVct_pkInstDeadSort.end(), fSortFunc);
std::for_each(s_kVct_pkInstDeadSort.begin(), s_kVct_pkInstDeadSort.end(), FCharacterInstanceRender());
}