From b52e16debeb8148f1a4c279aae1d1f9ef630358a Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Sat, 5 Aug 2017 09:03:55 -0700
Subject: [PATCH] [MetaballsKit] sampleTexture is public

---
 MetaballsKit/Metaballs.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MetaballsKit/Metaballs.swift b/MetaballsKit/Metaballs.swift
index 03aed6a..0568920 100644
--- a/MetaballsKit/Metaballs.swift
+++ b/MetaballsKit/Metaballs.swift
@@ -99,7 +99,7 @@ public class Field {
     private var sampleComputeState: MTLComputePipelineState?
     private var parametersBuffer: MTLBuffer?
     private var ballBuffer: MTLBuffer?
-    private(set) var sampleTexture: MTLTexture?
+    public private(set) var sampleTexture: MTLTexture?
 
     private var threadgroupCount = MTLSize()
     // TODO: It might be possible to (more dynamically) right-size this.
@@ -134,7 +134,7 @@ public class Field {
             desc.pixelFormat = .r16Float
             desc.width = Int(size.width)
             desc.height = Int(size.height)
-            desc.usage = .shaderWrite
+            desc.usage = [.shaderWrite, .shaderRead]
             sampleTexture = device.makeTexture(descriptor: desc)
         }
         return sampleTexture