From 17e7566be51df5e428a6b10e6469201a8a9468da Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Sat, 7 Aug 2021 02:20:09 -0400
Subject: Made the be/de macros for (co)monadic expression extensible.

---
 documentation/bookmark/rendering.md | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'documentation/bookmark/rendering.md')

diff --git a/documentation/bookmark/rendering.md b/documentation/bookmark/rendering.md
index 4222fea4b..793367868 100644
--- a/documentation/bookmark/rendering.md
+++ b/documentation/bookmark/rendering.md
@@ -1,3 +1,8 @@
+# Ray Tracing
+
+1. [Ray Tracing Gems II Available Today as Free Digital Download](https://developer.nvidia.com/blog/ray-tracing-gems-ii-available-today-as-free-digital-download/)
+1. [Ray Tracing Gems II](https://link.springer.com/book/10.1007/978-1-4842-7185-8)
+
 # Physically Based Rendering
 
 1. [Physically Based Rendering](https://www.pbr-book.org/3ed-2018/contents)
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