From 91eb05f1366209769922bcf44b24d6524aef8735 Mon Sep 17 00:00:00 2001
From: metallic77 <43163462+metallic77@users.noreply.github.com>
Date: Wed, 19 Apr 2023 20:30:14 +0300
Subject: [PATCH] fix scanlines misalignment/excessive moire (#396)

* integrate NTSC-colors

* Integrate NTSC-colors

* Integrate NTSC-colors, some fixes too

* additions

Added hue shift from grade, improved glow, added scanlines downscale to interlace mode. Some other touches too

* Update crt-consumer.slang

* fix scanlines misalignment
---
 crt/shaders/crt-consumer.slang | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crt/shaders/crt-consumer.slang b/crt/shaders/crt-consumer.slang
index a4003c4..efe6cb8 100644
--- a/crt/shaders/crt-consumer.slang
+++ b/crt/shaders/crt-consumer.slang
@@ -542,7 +542,7 @@ void main()
 
         float lum = color.r * 0.3 + color.g * 0.6 + color.b * 0.1;
 
-        float f = center_dist.y+0.5; //fix excessive moire
+        float f = fract(fp.y -0.5);
         
         if (global.inter > 0.5 && tex_size.y > 400.0) color = color; 
         else