Fold: implement dynamic branching in shader

Switch from static branching approach using per-op data and fixed
execution order to dynamic branching approach using dynamic data.
This confers the main benefit of letting us dynamically reorder ops and
duplicate them. It also lets us eliminate some of the plumbing tedium
whenever we want to add new ops.

1 files changed, 4 insertions, 0 deletions

diff --git a/Scripts/Fold/Editor/FoldNodeSerialized.cs b/Scripts/Fold/Editor/FoldNodeSerialized.cs
index 4836811..62431ae 100644
--- a/Scripts/Fold/Editor/FoldNodeSerialized.cs
+++ b/Scripts/Fold/Editor/FoldNodeSerialized.cs
@@ -2,11 +2,15 @@ using UnityEngine;
 
 public class FoldNodeSerialized
 {
+  public int opcode;
+
+  // Correspond to _Vertex_Deformation_Float_0, etc.
   public float float0;
   public float float1;
   public float float2;
   public float float3;
 
+  // _Vertex_Deformation_Vector_0, etc.
   public Vector4 vec0;
   public Vector4 vec1;
   public Vector4 vec2;