From 7d9b6aeafc25d1a572ff8e9d7d75c8fced0b0531 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lex=20Rom=C3=A1n=20N=C3=BA=C3=B1ez?=
 <eirexe@eirteam.moe>
Date: Sat, 19 Sep 2026 19:07:39 +0000
Subject: [PATCH] Fix headless asset preprocessing hang (#49)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

## Summary
- register Bevy's image loader explicitly in the headless asset processor
- use no GPU-compressed image formats because the processor has no render device
- allow PNG processing tasks to complete so `ProcessorState` reaches `Finished`

Co-authored-by: Álex Román Núñez <eirexe@eirteam.moe>
---
 src/bin/process-assets.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/bin/process-assets.rs b/src/bin/process-assets.rs
index 0abc55c..98912a9 100644
--- a/src/bin/process-assets.rs
+++ b/src/bin/process-assets.rs
@@ -2,7 +2,7 @@ use bevy::{
     app::ScheduleRunnerPlugin,
     asset::{AssetMode, AssetPlugin, processor::AssetProcessor, processor::ProcessorState},
     gltf::GltfPlugin,
-    image::ImagePlugin,
+    image::{CompressedImageFormats, ImageLoader, ImagePlugin},
     prelude::*,
     tasks::block_on,
     text::TextPlugin,
@@ -19,6 +19,7 @@ fn main() -> ExitCode {
             ..default()
         })
         .add_plugins((ImagePlugin::default(), TextPlugin, GltfPlugin::default()))
+        .register_asset_loader(ImageLoader::new(CompressedImageFormats::NONE))
         .add_plugins(AssetProcessingPlugin)
         .add_systems(Update, finish_when_processed);