1 files changed, 21 insertions, 0 deletions
diff --git a/src/gpu/effect.h b/src/gpu/effect.h
index 8055783..6c50d84 100644
--- a/src/gpu/effect.h
+++ b/src/gpu/effect.h
@@ -34,6 +34,20 @@ class Effect {
                       const UniformsSequenceParams& params,
                       NodeRegistry& nodes) = 0;
 
+  // Called after ALL effects in the sequence have rendered for this frame.
+  // Use for end-of-frame bookkeeping (e.g. copying temporal feedback buffers).
+  virtual void post_render(WGPUCommandEncoder encoder, NodeRegistry& nodes) {
+    (void)encoder;
+    (void)nodes;
+  }
+
+  // Called once after the full DAG is built (init_effect_nodes).
+  // Override to auto-wire inter-effect dependencies (e.g. temporal feedback).
+  // Default is a no-op.
+  virtual void wire_dag(const std::vector<struct EffectDAGNode>& dag) {
+    (void)dag;
+  }
+
   virtual void resize(int width, int height) {
     width_ = width;
     height_ = height;
@@ -60,6 +74,13 @@ class Effect {
   Texture dummy_texture_;
   TextureView dummy_texture_view_;
 
+  // DAG query helpers (callable from wire_dag overrides)
+  //
+  // Returns output_nodes[0] of the first effect in |dag| whose input_nodes
+  // intersect this effect's output_nodes_ (i.e. the first direct downstream
+  // consumer).  Returns "" if no such effect exists or it has no outputs.
+  std::string find_downstream_output(const std::vector<EffectDAGNode>& dag) const;
+
   // Helper: Create linear sampler (call in subclass constructor if needed)
   void create_linear_sampler();