From 530debcb9e55dfbbb83dee215d28bbdc7e7f4af9 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Mon, 31 Aug 2015 05:45:57 +0200
Subject: pose-widget: add comment

---
 pose-widget/glwidget.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pose-widget/glwidget.cpp b/pose-widget/glwidget.cpp
index 8bf169df..61b88b80 100644
--- a/pose-widget/glwidget.cpp
+++ b/pose-widget/glwidget.cpp
@@ -162,6 +162,8 @@ void GLWidget::project_quad_texture() {
             vec2 pos(x, y);
             for (int i = 0; i < 2; i++) {
                 vec2 uv;
+                // XXX knowing center of the lookup pos,
+                // we have symmetry so only one lookup is needed -sh 20150831
                 if (triangles[i].barycentric_coords(pos, uv))
                 {
                     const int px = origs[i][0].x()
-- 
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