1 files changed, 7 insertions, 1 deletions
diff --git a/src/declarative/items/qsgshadereffectsource.cpp b/src/declarative/items/qsgshadereffectsource.cpp
index 199a56067e..217b0e67a7 100644
--- a/src/declarative/items/qsgshadereffectsource.cpp
+++ b/src/declarative/items/qsgshadereffectsource.cpp
@@ -206,7 +206,13 @@ void QSGShaderEffectTexture::markDirtyTexture()
 
 void QSGShaderEffectTexture::grab()
 {
-    Q_ASSERT(m_item);
+    if (!m_item || m_size.isNull()) {
+        delete m_fbo;
+        delete m_secondaryFbo;
+        m_fbo = m_secondaryFbo = 0;
+        m_dirtyTexture = false;
+        return;
+    }
     QSGNode *root = m_item;
     while (root->childCount() && root->type() != QSGNode::RootNodeType)
         root = root->childAtIndex(0);