From 87248b46f3d38d9f4a3c5283b837105f478f14eb Mon Sep 17 00:00:00 2001
From: vlj <vljn@ovi.com>
Date: Sun, 20 Apr 2014 02:01:29 +0200
Subject: [PATCH] Tweak shadows CSM split.

---
 data/shaders/sunlightshadow.frag | 16 +++++++++++-----
 src/graphics/render.cpp          |  6 +++---
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/data/shaders/sunlightshadow.frag b/data/shaders/sunlightshadow.frag
index d970def0b..ff65e3f0c 100644
--- a/data/shaders/sunlightshadow.frag
+++ b/data/shaders/sunlightshadow.frag
@@ -100,20 +100,26 @@ void main() {
 	}
 	else if (xpos.z < 20.)
 		factor = getShadowFactor(xpos.xyz, bias, 1);
-	else if (xpos.z < 30.)
+	else if (xpos.z < 21.)
 	{
 		float a = getShadowFactor(xpos.xyz, bias, 1), b = getShadowFactor(xpos.xyz, bias, 2);
-		factor = mix(a, b, (xpos.z - 20.) / 10.);
+		factor = mix(a, b, (xpos.z - 20.));
 	}
 	else if (xpos.z < 50.)
 		factor = getShadowFactor(xpos.xyz, bias, 2);
-	else if (xpos.z < 70.)
+	else if (xpos.z < 55.)
 	{
 		float a = getShadowFactor(xpos.xyz, bias, 2), b = getShadowFactor(xpos.xyz, bias, 3);
-		factor = mix(a, b, (xpos.z - 50.) / 20.);
+		factor = mix(a, b, (xpos.z - 50.) / 5.);
+	}
+	else if (xpos.z < 145.)
+		factor = getShadowFactor(xpos.xyz, bias, 3);
+	else if (xpos.z < 150.)
+	{
+		factor = mix(getShadowFactor(xpos.xyz, bias, 3), 1., (xpos.z - 145.) / 5.);
 	}
 	else
-		factor = getShadowFactor(xpos.xyz, bias, 3);
+		factor = 1.;
 	Diff = vec4(factor * NdotL * col, 1.);
 	Spec = vec4(factor * Specular, 1.);
 	return;
diff --git a/src/graphics/render.cpp b/src/graphics/render.cpp
index e383c4562..34938f82d 100644
--- a/src/graphics/render.cpp
+++ b/src/graphics/render.cpp
@@ -559,9 +559,9 @@ void IrrDriver::computeCameraMatrix(scene::ICameraSceneNode * const camnode,
     float FarValues[] =
     {
         6.,
-        30.,
-        70.,
-        oldfar,
+        21.,
+        55.,
+        150.,
     };
     float NearValues[] =
     {