From dee5dac177659b5f1a9abd85f7abf97b93e0f11d Mon Sep 17 00:00:00 2001
From: Hesper Yin <hyin2@andrew.cmu.edu>
Date: Wed, 18 Nov 2020 12:51:22 -0500
Subject: [PATCH] Update environment_lighting.md

---
 docs/pathtracer/environment_lighting.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/docs/pathtracer/environment_lighting.md b/docs/pathtracer/environment_lighting.md
index a50f532..8005f93 100644
--- a/docs/pathtracer/environment_lighting.md
+++ b/docs/pathtracer/environment_lighting.md
@@ -59,3 +59,17 @@ Given the marginal distribution for <img src="environment_eq9.png" width ="10">
 * `Spectrum::luma()` returns the luminance (brightness) of a Spectrum. The probability of a pixel should be proportional to the product of its luminance and the solid angle it subtends.
 * `std::lower_bound` is your friend. Documentation is [here](https://en.cppreference.com/w/cpp/algorithm/lower_bound).
 
+
+## Sample results for importance sampling:
+
+ennis.exr with 32 spp
+
+![ennis](new_results/ennis32importance.png) 
+
+uffiz.exr with 32 spp
+
+![uffiz](new_results/uffiz32importance.png) 
+
+field.exr with 32 spp
+
+![ennis](new_results/field1024importance.png) 
-- 
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