void cBillboard::UpdateGraphics(cCamera3D *apCamera,float afFrameTime, cRenderList *apRenderList)
{
if(mbIsHalo==false) return;
////////////////////////
//Set the alpha
float fAlpha = 0;
if(mlLastRenderCount == apRenderList->GetLastRenderCount())
{
if(mMaxQueryObject.mpQuery->GetSampleCount()>0)
{
fAlpha = (float)mQueryObject.mpQuery->GetSampleCount() /
(float)mMaxQueryObject.mpQuery->GetSampleCount();
}
}
SetHaloAlpha(fAlpha);
mlLastRenderCount = apRenderList->GetRenderCount();
////////////////////////
//Add the queries
if(mbHaloSourceIsParent)
{
iRenderable *pParent = static_cast<iRenderable*>(GetEntityParent());
if(pParent==NULL)
{
Error("Billboard %s has no parent!\n",msName.c_str());
return;
}
iVertexBuffer *pVtxBuffer = pParent->GetVertexBuffer();
if(pVtxBuffer==NULL)
{
Error("Billboard '%s' parent '%s' as NULL vertex buffer!\n",msName.c_str(),
pParent->GetName().c_str());
return;
}
mQueryObject.mpMatrix = pParent->GetModelMatrix(apCamera);
mQueryObject.mpVtxBuffer = pVtxBuffer;
mMaxQueryObject.mpMatrix = pParent->GetModelMatrix(apCamera);
mMaxQueryObject.mpVtxBuffer = pVtxBuffer;
}
else
{
mQueryObject.mpMatrix = &GetWorldMatrix();
mQueryObject.mpVtxBuffer = mpHaloSourceBuffer;
mMaxQueryObject.mpMatrix = &GetWorldMatrix();
mMaxQueryObject.mpVtxBuffer = mpHaloSourceBuffer;
}
mQueryObject.mbDepthTest = true;
mMaxQueryObject.mbDepthTest = false;
apRenderList->AddOcclusionQuery(&mQueryObject);
apRenderList->AddOcclusionQuery(&mMaxQueryObject);
}
EntityID dd::World::GetEntityBaseParent(EntityID entity)
{
EntityID parent = GetEntityParent(entity);
if (parent == 0)
return entity;
else
return GetEntityBaseParent(parent);
}
