From b893ecce7954985a0a5c24c866e98af8804dac37 Mon Sep 17 00:00:00 2001
From: Valerie <sleeplessval@gmail.com>
Date: Sun, 14 Apr 2024 18:52:46 -0400
Subject: [PATCH] initial implementation of horizontal blur

---
 shaders/final.fsh          | 47 ++++++++++++++++++++++++++++++++++++++
 shaders/final.vsh          |  3 +++
 shaders/lang/en_US.lang    |  9 +++-----
 shaders/shaders.properties | 13 ++++++-----
 4 files changed, 60 insertions(+), 12 deletions(-)
 create mode 100644 shaders/final.fsh
 create mode 100644 shaders/final.vsh

diff --git a/shaders/final.fsh b/shaders/final.fsh
new file mode 100644
index 0000000..bd1ba82
--- /dev/null
+++ b/shaders/final.fsh
@@ -0,0 +1,47 @@
+#version 120
+
+#define pixelSize // [1 2 4 8 16]
+//#define hBlur
+
+varying vec2 texcoord;
+
+uniform sampler2D gcolor;
+uniform float viewWidth;
+
+#ifdef hBlur
+
+vec2 neighbor = vec2(1 / viewWidth, 0);
+
+float avg(float l, float c, float r) {
+	return (l + c + r) / 3;
+}
+
+void main() {
+	vec3 color = texture2D(gcolor, texcoord).rgb;
+
+	vec2 left = texcoord - neighbor;
+	vec2 right = texcoord + neighbor;
+	vec3 lColor;
+	if(left.x >= 0)
+		lColor = texture2D(gcolor, left).rgb;
+	else
+		lColor = color;
+
+	vec3 rColor;
+	if(right.x <= viewWidth)
+		rColor = texture2D(gcolor, right).rgb;
+	else
+		rColor = color;
+
+	vec3 blurred = vec3(avg(lColor.r, color.r, rColor.r), avg(lColor.g, color.g, rColor.g), avg(lColor.b, color.b, rColor.b));
+	gl_FragData[0] = vec4(blurred, 1);
+}
+
+#else
+
+void main() {
+	gl_FragData[0] = texture2D(gcolor, texcoord);
+}
+
+#endif
+
diff --git a/shaders/final.vsh b/shaders/final.vsh
new file mode 100644
index 0000000..5f61fc7
--- /dev/null
+++ b/shaders/final.vsh
@@ -0,0 +1,3 @@
+#version 120
+
+#include "/module/empty.vert"
diff --git a/shaders/lang/en_US.lang b/shaders/lang/en_US.lang
index c008789..2217a97 100644
--- a/shaders/lang/en_US.lang
+++ b/shaders/lang/en_US.lang
@@ -3,6 +3,7 @@ profile.DEFAULT=Default
 profile.AEON=Aeon Upstream
 profile.DOS=DOS
 profile.PSX=PSX
+profile.REALITY=Project Reality
 profile.VR32=VR32
 
 option.pixelSize=Downscaling
@@ -42,10 +43,6 @@ option.dofRes=DoF Dither
 option.dofRes.comment=Whether DoF focus affects dither resolution.
 value.dofRes.0=Static
 value.dofRes.1=Dynamic
-option.worldCurvature=World Curvature
-value.worldCurvature.0=Off
-value.worldCurvature.1=Chunk
-value.worldCurvature.2=Cylinder
-value.worldCurvature.3=Polyhedron
-value.worldCurvature.4=Sphere
+option.hblur=Horizontal Blur
+option.hblur.comment=Emulates the blur responsible for reducing LCD clarity on the N64
 
diff --git a/shaders/shaders.properties b/shaders/shaders.properties
index 291e85f..0baddda 100644
--- a/shaders/shaders.properties
+++ b/shaders/shaders.properties
@@ -1,11 +1,12 @@
 sliders=pixelSize hueSteps satSteps valSteps rgbSteps vWarp
 
 #	-- PROFILES --
-profile.DEFAULT=pixelSize=2 colorMode=0 dithering hueSteps=4 satSteps=4 valSteps=4 vWarp=0 !tWarp
-profile.AEON=pixelSize=1 colorMode=0 dithering hueSteps=8 satSteps=4 valSteps=4 vWarp=0 !tWarp
-profile.DOS=pixelSize=4 colorMode=1 dithering rgbSteps=2 vWarp=1 !tWarp
-profile.PSX=pixelSize=2 colorMode=1 !dithering rgbSteps=16 vWarp=2 tWarp
-profile.VR32=pixelSize=8 colorMode=0 !dithering hueSteps=2 satSteps=2 valSteps=2 vWarp=1 !tWarp
+profile.DEFAULT=pixelSize=2 colorMode=0 dithering hueSteps=4 satSteps=4 valSteps=4 vWarp=0 !tWarp !hBlur
+profile.AEON=pixelSize=1 colorMode=0 dithering hueSteps=8 satSteps=4 valSteps=4 vWarp=0 !tWarp !hBlur
+profile.DOS=pixelSize=4 colorMode=1 dithering rgbSteps=2 vWarp=1 !tWarp !hBlur
+profile.PSX=pixelSize=2 colorMode=1 !dithering rgbSteps=16 vWarp=2 tWarp !hBlur
+profile.REALITY=profile.PSX !tWarp hBlur
+profile.VR32=pixelSize=8 colorMode=0 !dithering hueSteps=2 satSteps=2 valSteps=2 vWarp=1 !tWarp !hBlur
 
 #	-- SCREENS --
 #	default
@@ -19,7 +20,7 @@ screen.COLOR=colorMode dithering <empty> rgbSteps <empty> <empty> hueSteps satSt
 screen.PSX=vWarp tWarp
 
 #	fx
-screen.FX=dof dofRes
+screen.FX=dof dofRes hBlur
 
 #	-- CONDITIONALS --
 gbuffers_hand.enabled=tWarp