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optimize OctreeElement::calculateShouldRender()

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This commit is contained in:
ZappoMan 2014-03-19 13:54:06 -07:00
parent adaa01c13e
commit 3d0207b926
1 changed files with 9 additions and 5 deletions
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14
libraries/octree/src/OctreeElement.cpp
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@ -1209,11 +1209,15 @@ bool OctreeElement::calculateShouldRender(const ViewFrustum* viewFrustum, float
bool shouldRender = false;
if (hasContent()) {
float furthestDistance = furthestDistanceToCamera(*viewFrustum);
float boundary = boundaryDistanceForRenderLevel(getLevel() + boundaryLevelAdjust, voxelScaleSize);
float childBoundary = boundaryDistanceForRenderLevel(getLevel() + 1 + boundaryLevelAdjust, voxelScaleSize);
bool inBoundary = (furthestDistance <= boundary);
bool inChildBoundary = (furthestDistance <= childBoundary);
shouldRender = (isLeaf() && inChildBoundary) || (inBoundary && !inChildBoundary);
float childBoundary = boundaryDistanceForRenderLevel(getLevel() + 1 + boundaryLevelAdjust, voxelScaleSize);
bool inChildBoundary = (furthestDistance <= childBoundary);
if (isLeaf() && inChildBoundary) {
shouldRender = true;
} else {
float boundary = childBoundary * 2.0f; // the boundary is always twice the distance of the child boundary
bool inBoundary = (furthestDistance <= boundary);
shouldRender = inBoundary && !inChildBoundary;
}
}
return shouldRender;
}