From 1df3b74d3854a39aebd84e5a4c462b547519ff3a Mon Sep 17 00:00:00 2001
From: Jakob Hellermann <jakob.hellermann@protonmail.com>
Date: Sat, 3 Apr 2021 22:51:52 +0000
Subject: [PATCH] fix attempt to modify emissive uniform (#1771)

Previously loading the boom box gltf file panic'd with `ERROR: 0:335: 'assign' :  l-value required "anon@7" (can't modify a uniform)`
---
 crates/bevy_pbr/src/render_graph/pbr_pipeline/pbr.frag | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crates/bevy_pbr/src/render_graph/pbr_pipeline/pbr.frag b/crates/bevy_pbr/src/render_graph/pbr_pipeline/pbr.frag
index 380332e79c..bb42cd2300 100644
--- a/crates/bevy_pbr/src/render_graph/pbr_pipeline/pbr.frag
+++ b/crates/bevy_pbr/src/render_graph/pbr_pipeline/pbr.frag
@@ -326,6 +326,7 @@ void main() {
 #    endif
 
 #    ifdef STANDARDMATERIAL_EMISSIVE_TEXTURE
+    vec4 emissive = emissive;
     // TODO use .a for exposure compensation in HDR
     emissive.rgb *= texture(sampler2D(StandardMaterial_emissive_texture, StandardMaterial_emissive_texture_sampler), v_Uv).rgb;
 #    endif