check for null effect in EffectCullVisitor

An EffectGeode might not have any effect.
2009-09-18 15:43:46 +02:00
parent 454c5b1ed2
commit 3456434e37
1 changed files with 3 additions and 2 deletions
--- a/simgear/scene/material/EffectCullVisitor.cxx
+++ b/simgear/scene/material/EffectCullVisitor.cxx
@@ -54,8 +54,9 @@ void EffectCullVisitor::apply(osg::Geode& node)
        CullVisitor::apply(node);
        return;
    }
-    Technique* technique = eg->getEffect()->chooseTechnique(&getRenderInfo());
-    if (!technique) {
+    Effect* effect = eg->getEffect();
+    Technique* technique = 0;
+    if (!(effect && (technique = effect->chooseTechnique(&getRenderInfo())))) {
        CullVisitor::apply(node);
        return;
    }