From 4b6c85d07bab65c9be10d7c47a8c17a9ab04c1d0 Mon Sep 17 00:00:00 2001
From: Makio64 <davronai@gmail.com>
Date: Mon, 25 Nov 2024 23:24:06 +0900
Subject: [PATCH] alpha.mul to take in account previous alpha

---
 src/materials/nodes/Line2NodeMaterial.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/materials/nodes/Line2NodeMaterial.js b/src/materials/nodes/Line2NodeMaterial.js
index 35e30aac4d1ef6..3e323b7b31654b 100644
--- a/src/materials/nodes/Line2NodeMaterial.js
+++ b/src/materials/nodes/Line2NodeMaterial.js
@@ -310,7 +310,7 @@ class Line2NodeMaterial extends NodeMaterial {
 					if ( useAlphaToCoverage && renderer.samples > 1 ) {
 
 						const dnorm = norm.fwidth();
-						alpha.assign( smoothstep( dnorm.negate().add( 0.5 ), dnorm.add( 0.5 ), norm ).oneMinus() );
+						alpha.assign( alpha.mul( smoothstep( dnorm.negate().add( 0.5 ), dnorm.add( 0.5 ), norm ).oneMinus() ) );
 
 					} else {
 
@@ -335,7 +335,7 @@ class Line2NodeMaterial extends NodeMaterial {
 
 					If( vUv.y.abs().greaterThan( 1.0 ), () => {
 
-						alpha.assign( smoothstep( dlen.oneMinus(), dlen.add( 1 ), len2 ).oneMinus() );
+						alpha.assign( alpha.mul( smoothstep( dlen.oneMinus(), dlen.add( 1 ), len2 ).oneMinus() ) );
 
 					} );