From 82d7a5e1560ef8c032ef7807ea024c41e8c5aa2b Mon Sep 17 00:00:00 2001
From: Paul Du Bois <pld@google.com>
Date: Thu, 10 Aug 2017 13:09:56 -0700
Subject: [PATCH] Fix b/64571071: particle import drops particles

Turns out we were throwing away 1/3 of the particle quads. No more!

Change-Id: I1f4257936f0d9a00ecf53a7bedc977f1bf173616
---
 UnitySDK/Assets/TiltBrush/Scripts/Editor/ParticleMesh.cs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/UnitySDK/Assets/TiltBrush/Scripts/Editor/ParticleMesh.cs b/UnitySDK/Assets/TiltBrush/Scripts/Editor/ParticleMesh.cs
index 10f02b19..8e29b393 100644
--- a/UnitySDK/Assets/TiltBrush/Scripts/Editor/ParticleMesh.cs
+++ b/UnitySDK/Assets/TiltBrush/Scripts/Editor/ParticleMesh.cs
@@ -58,8 +58,8 @@ internal static void FilterMesh(Mesh mesh, WarningCallback callback) {
     ParticleMesh src = ParticleMesh.FromMesh(mesh);
     ParticleMesh dst = new ParticleMesh();
 
-    // ClassifyQuad wants at least 6 verts to examine
-    int limit = src.VertexCount - 5;
+    // ClassifyQuad wants at least 6 indices (2 triangles) to examine
+    int limit = src.TriangleCount - 6;
     int iiVert = 0;
     while (iiVert < limit) {
       switch (src.ClassifyQuad(iiVert, callback)) {
@@ -109,7 +109,7 @@ private static ParticleMesh FromMesh(Mesh mesh) {
   bool m_bNoisy = true;
   int? m_lastMod;
 
-  internal int VertexCount { get { return m_vertices.Count; } }
+  internal int TriangleCount { get { return m_triangles.Count; } }
 
   // iiVert is an index to an index to a vert (an index into m_triangles)
   // iiVert must be at least 6 verts from the end of the mesh.