From c9000fcad7a133143fbc451113aa1982e9f7bcd8 Mon Sep 17 00:00:00 2001
From: Simon Schneegans <code@simonschneegans.de>
Date: Thu, 27 Jan 2022 21:33:33 +0100
Subject: [PATCH] :beetle: Fix blending of fire shader

---
 src/Fire.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Fire.js b/src/Fire.js
index e7640e0..eecbeb0 100644
--- a/src/Fire.js
+++ b/src/Fire.js
@@ -334,7 +334,7 @@ if (utils.isInShellProcess()) {
           cogl_color_out = texture2D(uTexture, cogl_tex_coord_in[0].st) * effectMask.x;
 
           // Add the fire to the window.
-          cogl_color_out = mix(cogl_color_out, fire, fire.a);
+          cogl_color_out = cogl_color_out * (1.0 - fire.a) + fire;
 
           // These are pretty useful for understanding how this works.
           // cogl_color_out = vec4(vec3(noise), 1);