From 20f1003ce6798f6a39b65956433714de892fe2bc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20T=C5=AFma?= <tumic@cbox.cz>
Date: Fri, 1 Mar 2024 00:37:58 +0100
Subject: [PATCH] Increase hillshading contrast

---
 src/map/hillshading.cpp | 1 +
 src/map/hillshading.h   | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/map/hillshading.cpp b/src/map/hillshading.cpp
index 75d3d0e6..414fe8a4 100644
--- a/src/map/hillshading.cpp
+++ b/src/map/hillshading.cpp
@@ -84,6 +84,7 @@ QImage HillShading::render(const Matrix &m, quint8 alpha, double z,
 			if (std::isnan(L))
 				pixel = 0;
 			else {
+				L = sqrt(L * 0.8 + 0.2);
 				quint8 val = (L < 0) ? 0 : L * alpha;
 				pixel = (alpha - val)<<24;
 			}
diff --git a/src/map/hillshading.h b/src/map/hillshading.h
index 7accd380..affc4e55 100644
--- a/src/map/hillshading.h
+++ b/src/map/hillshading.h
@@ -7,7 +7,7 @@
 class HillShading
 {
 public:
-	static QImage render(const Matrix &m, quint8 alpha = 64, double z = 0.3,
+	static QImage render(const Matrix &m, quint8 alpha = 96, double z = 0.3,
 	  double azimuth = 315, double elevation = 25);
 };