Viewer should not be connected to a Writer that can only render seque…

…ntially fixes NatronGitHub#507
MX-05 · Apr 10, 2021 · 342aa71 · 342aa71
1 parent 7f86ff4
commit 342aa71
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diff --git a/Engine/WriteNode.cpp b/Engine/WriteNode.cpp
@@ -1258,6 +1258,22 @@ WriteNode::knobChanged(KnobI* k,
     return ret;
 } // WriteNode::knobChanged
 
+
+SequentialPreferenceEnum
+WriteNode::getSequentialPreference() const
+{
+    NodePtr writer = _imp->embeddedPlugin.lock();
+
+    if (writer) {
+        EffectInstancePtr effect = writer->getEffectInstance();
+        if (effect) {
+            return effect->getSequentialPreference();
+        }
+    }
+    return EffectInstance::getSequentialPreference();
+}
+
+
 bool
 WriteNode::isViewAware() const
 {

diff --git a/Engine/WriteNode.h b/Engine/WriteNode.h
@@ -111,6 +111,7 @@ GCC_DIAG_SUGGEST_OVERRIDE_ON
     void renderSequenceStarted();
     void renderSequenceEnd();
 
+    virtual SequentialPreferenceEnum getSequentialPreference() const OVERRIDE FINAL WARN_UNUSED_RETURN;
     virtual bool isViewAware() const OVERRIDE FINAL WARN_UNUSED_RETURN;
 
 public Q_SLOTS: