From b466bfee40068dba7c26c2d466d8e3236b07ab46 Mon Sep 17 00:00:00 2001
From: Andrei Kortunov <andrei.kortunov@yandex.ru>
Date: Thu, 21 Mar 2019 10:27:50 +0400
Subject: [PATCH] Enable light sources directly to avoid virtual calls

---
 components/sceneutil/lightmanager.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/sceneutil/lightmanager.cpp b/components/sceneutil/lightmanager.cpp
index f0fd0ef9f3..c657e66fd7 100644
--- a/components/sceneutil/lightmanager.cpp
+++ b/components/sceneutil/lightmanager.cpp
@@ -245,7 +245,8 @@ namespace SceneUtil
             osg::ref_ptr<LightStateAttribute> attr = new LightStateAttribute(mStartLight, lights);
             // don't use setAttributeAndModes, that does not support light indices!
             stateset->setAttribute(attr, osg::StateAttribute::ON);
-            stateset->setAssociatedModes(attr, osg::StateAttribute::ON);
+            for (unsigned int i=0; i<lightList.size(); ++i)
+                stateset->setMode(GL_LIGHT0 + mStartLight + i, osg::StateAttribute::ON);
 
             // need to push some dummy attributes to ensure proper state tracking
             // lights need to reset to their default when the StateSet is popped