WebGLRenderer: Sort on bounding sphere center, not origin (#25913)

* WebGLRenderer: Sort on bounding sphere center. * Update screenshot for webgl_buffergeometry_drawrange.
mrdoob · Apr 24, 2023 · fab4ed4 · fab4ed4
1 parent f39297c
commit fab4ed4
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Showing 2 changed files with 8 additions and 4 deletions.
diff --git a/examples/screenshots/webgl_buffergeometry_drawrange.jpg b/examples/screenshots/webgl_buffergeometry_drawrange.jpg
diff --git a/src/renderers/WebGLRenderer.js b/src/renderers/WebGLRenderer.js
@@ -1163,16 +1163,20 @@ class WebGLRenderer {
 
 					if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {
 
+						const geometry = objects.update( object );
+						const material = object.material;
+
 						if ( sortObjects ) {
 
-							_vector3.setFromMatrixPosition( object.matrixWorld )
+							if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
+
+							_vector3
+								.copy( geometry.boundingSphere.center )
+								.applyMatrix4( object.matrixWorld )
 								.applyMatrix4( _projScreenMatrix );
 
 						}
 
-						const geometry = objects.update( object );
-						const material = object.material;
-
 						if ( Array.isArray( material ) ) {
 
 							const groups = geometry.groups;