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changeset 1439:7da675d0c512

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Small fix submitted by Anaël Seghezzi to his subtle crt shader
author Michael Pavone <pavone@retrodev.com>
date Thu, 24 Aug 2017 00:02:16 -0700
parents e2bd03ed3190
children 7d4483944d4d
files shaders/crt.f.glsl
diffstat 1 files changed, 2 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/shaders/crt.f.glsl	Wed Aug 23 21:18:17 2017 -0700
+++ b/shaders/crt.f.glsl	Thu Aug 24 00:02:16 2017 -0700
@@ -50,8 +50,8 @@
 	vec2 texco = monitorcoord * vec2(width/1024.0, height/-1024.0) + vec2(width/1024.0, height/1024.0);
 
 	// mask
-	float maskx = 1.0 - pow(monitorcoord.x, 200.0);
-	float masky = 1.0 - pow(-monitorcoord.y, 200.0);
+	float maskx = 1.0 - pow(abs(monitorcoord.x), 200.0);
+	float masky = 1.0 - pow(abs(-monitorcoord.y), 200.0);
 	float mask = clamp(maskx * masky, 0.0, 1.0);
 
 	// sharp texcoord