downgrade to v1.53

-> fix dark nights, but removes DH compat too

shaders/final.fsh

@@ -1,14 +1,4 @@
 #version 120
-/*
-Sildur's Vibrant Shaders:
-https://www.patreon.com/Sildur
-https://sildurs-shaders.github.io/
-https://twitter.com/SildurFX
-
-Permissions:
-You are not allowed to edit, copy code or share my shaderpack under a different name or claim it as yours.
-*/
-
 
 #define final
 #include "shaders.settings"
@@ -137,6 +127,7 @@ const float centerDepthHalflife = 2.0f;
 #endif
 
 #ifdef Cloudsblur
+float comp = 1.0-near/far/far;
 vec3 cblur(vec2 tc){
 	float pw = 1.0 / viewWidth;
 	float getdist = 1.0-(exp(-pow(ld(texture2D(depthtex1, tc).r)/256.0*far,4.0)*4.0));
@@ -247,10 +238,12 @@ float rainlens = 0.0;
 	vec2 newTC = clamp(texcoord + fake_refract * 0.01 * (rainlens+isEyeInWater*0.2),1.0/vec2(viewWidth,viewHeight),1.0-1.0/vec2(viewWidth,viewHeight));
 	vec3 color = texture2D(gaux4, newTC.xy).rgb*50.0;
 
-#ifndef DISTANT_HORIZONS
-	#ifdef Cloudsblur
-		if(depth1 >= 1.0)color.rgb = cblur(newTC.xy);
-	#endif
+#ifdef Cloudsblur
+#if defined MC_GL_VENDOR_ATI || defined MC_OS_LINUX
+	color.rgb = cblur(newTC.xy);	//checking only for sky causes weird outlines on amd cards and linux drivers
+#else
+	if(depth1 > comp)color.rgb = cblur(newTC.xy);
+#endif	
 #endif
 
 #ifdef Depth_of_Field