From 987aa32b7061c8ef22075bab6f8e95d8b2f19a03 Mon Sep 17 00:00:00 2001
From: Marek Kowalski <marek.kow4@gmail.com>
Date: Thu, 5 Jul 2018 22:23:40 +0200
Subject: [PATCH] Modified the .ply file reader in LiveScanPlayer to allow for
 reading .ply files saved by meshlab.

---
 LiveScanPlayer/FrameFileReaderPly.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/LiveScanPlayer/FrameFileReaderPly.cs b/LiveScanPlayer/FrameFileReaderPly.cs
index 2c8936a..78d3f67 100644
--- a/LiveScanPlayer/FrameFileReaderPly.cs
+++ b/LiveScanPlayer/FrameFileReaderPly.cs
@@ -33,13 +33,18 @@ namespace LiveScanPlayer
         {
             BinaryReader reader = new BinaryReader(new FileStream(filenames[currentFrameIdx], FileMode.Open));
 
+            bool alpha = false;
             string line = ReadLine(reader);
             while (!line.Contains("element vertex"))
                 line = ReadLine(reader);
             string[] lineElems = line.Split(' ');
             int nPoints = Int32.Parse(lineElems[2]);
             while (!line.Contains("end_header"))
+            {
+                if (line.Contains("alpha"))
+                    alpha = true;
                 line = ReadLine(reader);
+            }
 
             for (int i = 0; i < nPoints; i++)
             {
@@ -51,6 +56,9 @@ namespace LiveScanPlayer
                 {
                     colors.Add(reader.ReadByte());
                 }
+                //read additional alpha byte
+                if (alpha)
+                    reader.ReadByte();
             }
 
             reader.Dispose();