Merge pull request #1751 from NBickford-NV/nbickford/faster-resetBackground

danrbailey · web-flow · commit 9ae369e7abbb · 2024-02-14T16:30:39.000-08:00
Add early-exit optimization for LeafNode::resetBackground()
diff --git a/openvdb/openvdb/tree/LeafNode.h b/openvdb/openvdb/tree/LeafNode.h
@@ -1611,6 +1611,7 @@ LeafNode<T, Log2Dim>::resetBackground(const ValueType& oldBackground,
                                       const ValueType& newBackground)
 {
     if (!this->allocate()) return;
+    if (math::isExactlyEqual(oldBackground, newBackground)) return;
 
     typename NodeMaskType::OffIterator iter;
     // For all inactive values...

Original file line number	Diff line number	Diff line change
`@@ -1611,6 +1611,7 @@ LeafNode<T, Log2Dim>::resetBackground(const ValueType& oldBackground,`
`1611`	`1611`	`const ValueType& newBackground)`
`1612`	`1612`	`{`
`1613`	`1613`	`if (!this->allocate()) return;`
	`1614`	`+ if (math::isExactlyEqual(oldBackground, newBackground)) return;`
`1614`	`1615`
`1615`	`1616`	`typename NodeMaskType::OffIterator iter;`
`1616`	`1617`	`// For all inactive values...`