diff --git a/data/shaders/ssao.frag b/data/shaders/ssao.frag
index 92e34966c..4e3cbaa7c 100644
--- a/data/shaders/ssao.frag
+++ b/data/shaders/ssao.frag
@@ -66,5 +66,5 @@ void main(void)
 		bl += isOccluded ? samplePoints[i].z * smoothstep(5 * radius, 0, distance(samplePos, FragPos)) : 0.;
 	}
 
-	AO = 1.0 - bl * invSamples;
+	AO = max(1.0 - bl * invSamples, 0.);
 }
diff --git a/data/shaders/tonemap.frag b/data/shaders/tonemap.frag
index 923e51d59..d1496f1af 100644
--- a/data/shaders/tonemap.frag
+++ b/data/shaders/tonemap.frag
@@ -9,8 +9,8 @@ out vec4 FragColor;
 vec3 getCIEYxy(vec3 rgbColor);
 vec3 getRGBFromCIEXxy(vec3 YxyColor);
 
-float exposure = .18;
-float Lwhite = 1.;
+float exposure = .045;
+float Lwhite = 100.;
 float delta = .0001;
 float saturation = 1.;