1 files changed, 24 insertions, 1 deletions
diff --git a/src/gpu/sequence_v2.cc b/src/gpu/sequence_v2.cc
index c3f9aea..9e30db0 100644
--- a/src/gpu/sequence_v2.cc
+++ b/src/gpu/sequence_v2.cc
@@ -11,7 +11,15 @@ NodeRegistry::NodeRegistry(WGPUDevice device, int default_width,
                            int default_height)
     : device_(device), default_width_(default_width),
       default_height_(default_height) {
-  // Reserve source/sink as implicit nodes (managed externally by MainSequence)
+  // Create placeholder source/sink nodes (will be updated externally before rendering)
+  Node placeholder = {};
+  placeholder.type = NodeType::U8X4_NORM;
+  placeholder.width = default_width;
+  placeholder.height = default_height;
+  placeholder.texture = nullptr;
+  placeholder.view = nullptr;
+  nodes_["source"] = placeholder;
+  nodes_["sink"] = placeholder;
 }
 
 NodeRegistry::~NodeRegistry() {
@@ -107,6 +115,15 @@ bool NodeRegistry::has_node(const std::string& name) const {
          aliases_.find(name) != aliases_.end();
 }
 
+void NodeRegistry::set_external_view(const std::string& name,
+                                      WGPUTextureView view) {
+  // Register external view (texture not owned by registry)
+  Node node = {};
+  node.view = view;
+  node.texture = nullptr; // Not owned
+  nodes_[name] = node;
+}
+
 void NodeRegistry::create_texture(Node& node) {
   WGPUTextureFormat format;
   WGPUTextureUsage usage;
@@ -205,3 +222,9 @@ void SequenceV2::resize(int width, int height) {
     dag_node.effect->resize(width, height);
   }
 }
+
+void SequenceV2::init_effect_nodes() {
+  for (auto& dag_node : effect_dag_) {
+    dag_node.effect->declare_nodes(nodes_);
+  }
+}