From 8ba0849bcfb5c8a1fbffa7b1900030ec819c327e Mon Sep 17 00:00:00 2001
From: Philip Rideout <philiprideout@gmail.com>
Date: Thu, 13 Jun 2019 08:51:21 -0700
Subject: [PATCH] lucy_bloom: improve code comments

---
 samples/lucy_utils.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/samples/lucy_utils.cpp b/samples/lucy_utils.cpp
index 270e53bbf0..cec56d8841 100644
--- a/samples/lucy_utils.cpp
+++ b/samples/lucy_utils.cpp
@@ -132,6 +132,9 @@ Entity createQuad(Engine* engine, Texture* tex, ImageOp op, Texture* secondary)
         return Material::Builder().package(pkg.getData(), pkg.getSize()).build(engine);
     }(*engine);
 
+    // Compute the "weights" array, which is composed of two consective sequences of 4-tuples:
+    //       [WEIGHT, OFFSET_X, OFFSET_Y, DONT_CARE]
+    // The first sequence is for the horizontal pass, the second sequence is for the vertical pass.
     static const float4* weights = []() {
         static float4 weights[FILTER_SIZE * 2];
         float4* hweights = weights;