Removed getRangesIntersection

.gitignore

@@ -65,4 +65,4 @@ example/dev-bundle
 
 *.generated.js
 
-build/**
+build/**

src/core/build/geometryUtils.js

@@ -84,7 +84,7 @@ export function getRootIndexRanges( geo, range ) {
 	const ranges = [];
 	const rangeBoundaries = new Set();
 
-	const drawRange = range ? getRangesIntersection( geo.drawRange, range ) : geo.drawRange; // or we just want to use only 'range' also here?
+	const drawRange = range ? range : geo.drawRange;
 	const drawRangeStart = drawRange.start / 3;
 	const drawRangeEnd = ( drawRange.start + drawRange.count ) / 3;
 	for ( const group of geo.groups ) {
@@ -135,17 +135,3 @@ export function hasGroupGaps( geometry, range ) {
 	return vertexCount !== total;
 
 }
-
-
-export function getRangesIntersection( geoRange, customRange ) {
-
-	const start = Math.max( geoRange.start, customRange.start );
-
-	return {
-
-		start,
-		count: Math.min( geoRange.start + geoRange.count, customRange.start + customRange.count ) - start
-
-	};
-
-}