From 0cb451b62c460665a94d5b6f60e474a8e0e8b1cf Mon Sep 17 00:00:00 2001
From: FMS-Cat <yutaka.obuchi@gmail.com>
Date: Mon, 29 Mar 2021 23:14:03 +0900
Subject: [PATCH] aesthetics: distance fall for emissive stuff

---
 src/shaders/bounding-box.frag            | 12 ++++++++----
 src/shaders/flicky-particles-render.frag | 13 +++++++++----
 2 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/src/shaders/bounding-box.frag b/src/shaders/bounding-box.frag
index ed44783..4d0620d 100644
--- a/src/shaders/bounding-box.frag
+++ b/src/shaders/bounding-box.frag
@@ -14,12 +14,11 @@ in vec4 vPosition;
 
 #ifdef SHADOW
   out vec4 fragColor;
-
-  uniform vec2 cameraNearFar;
-  uniform vec3 cameraPos;
 #endif
 
 uniform float time;
+uniform vec2 cameraNearFar;
+uniform vec3 cameraPos;
 
 void main() {
   float phase = vPositionWithoutModel.x + vPositionWithoutModel.y + vPositionWithoutModel.z;
@@ -30,7 +29,12 @@ void main() {
   }
 
   #ifdef FORWARD
-    fragColor = vec4( 1.0 );
+    vec3 color = vec3( 1.0 );
+
+    float lenV = length( cameraPos - vPosition.xyz );
+    color *= exp( -0.4 * max( lenV - 3.0, 0.0 ) );
+
+    fragColor = vec4( color, 1.0 );
   #endif
 
   #ifdef SHADOW
diff --git a/src/shaders/flicky-particles-render.frag b/src/shaders/flicky-particles-render.frag
index 6a54f09..8b00009 100644
--- a/src/shaders/flicky-particles-render.frag
+++ b/src/shaders/flicky-particles-render.frag
@@ -45,11 +45,11 @@ uniform sampler2D samplerRandomStatic;
 
 #ifdef DEPTH
   out vec4 fragColor;
-
-  uniform vec2 cameraNearFar;
-  uniform vec3 cameraPos;
 #endif
 
+uniform vec2 cameraNearFar;
+uniform vec3 cameraPos;
+
 // == utils ========================================================================================
 mat2 rotate2D( float t ) {
   return mat2( cos( t ), sin( t ), -sin( t ), cos( t ) );
@@ -177,7 +177,12 @@ void main() {
   }
 
   #ifdef FORWARD
-    fragColor = vec4( 0.2 );
+    vec3 color = vec3( 1.0 );
+
+    float lenV = length( cameraPos - vPosition.xyz );
+    color *= exp( -0.4 * max( lenV - 3.0, 0.0 ) );
+
+    fragColor = vec4( color, 1.0 );
   #endif
 
   #ifdef DEFERRED