fix cloud animation degrading after around 1000 days. fix tiny issue on emissives and block breaking effect

shaders/dimensions/all_particles.fsh

@@ -334,7 +334,9 @@ void main() {
 	#else
 		vec3 Albedo = toLinear(texture2D(texture, adjustedTexCoord.xy).rgb);
 	#endif
-
+	
+	if(dot(Albedo.rgb, vec3(0.33333)) < 1.0/255.0) { discard; return; }
+	
 	gl_FragData[0] = vec4(encodeVec2(vec2(0.5)), encodeVec2(Albedo.rg), encodeVec2(vec2(Albedo.b,0.02)), 1.0);
 #endif