From d00ede0454537e11aaa2ea07248940b5e1326958 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Sun, 27 Nov 2022 23:15:11 +0100
Subject: [PATCH] Primitives: document how the square/plane vertices are
 ordered.

---
 src/Magnum/Primitives/Plane.cpp  | 4 ++++
 src/Magnum/Primitives/Square.cpp | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/src/Magnum/Primitives/Plane.cpp b/src/Magnum/Primitives/Plane.cpp
index 479260dd9..99d8a6767 100644
--- a/src/Magnum/Primitives/Plane.cpp
+++ b/src/Magnum/Primitives/Plane.cpp
@@ -37,6 +37,10 @@ constexpr struct VertexSolid {
     Vector3 position;
     Vector3 normal;
 } VerticesSolid[] {
+    /* 3--1
+       | /|
+       |/ |
+       2--0 */
     {{ 1.0f, -1.0f, 0.0f}, {0.0f, 0.0f, 1.0f}},
     {{ 1.0f,  1.0f, 0.0f}, {0.0f, 0.0f, 1.0f}},
     {{-1.0f, -1.0f, 0.0f}, {0.0f, 0.0f, 1.0f}},
diff --git a/src/Magnum/Primitives/Square.cpp b/src/Magnum/Primitives/Square.cpp
index 359ecf7bb..cc25a3df6 100644
--- a/src/Magnum/Primitives/Square.cpp
+++ b/src/Magnum/Primitives/Square.cpp
@@ -38,6 +38,10 @@ namespace {
 constexpr struct VertexSolid {
     Vector2 position;
 } VerticesSolid[] {
+    /* 3--1
+       | /|
+       |/ |
+       2--0 */
     {{ 1.0f, -1.0f}},
     {{ 1.0f,  1.0f}},
     {{-1.0f, -1.0f}},