3 files changed, 2 insertions, 31 deletions
diff --git a/editor/editor_node.cpp b/editor/editor_node.cpp
index 194021669f..3b71c85422 100644
--- a/editor/editor_node.cpp
+++ b/editor/editor_node.cpp
@@ -623,8 +623,6 @@ void EditorNode::_notification(int p_what) {
 
 			ResourceImporterTexture::get_singleton()->update_imports();
 
-			// if using a main thread only renderer, we need to update the resource previews
-			EditorResourcePreview::get_singleton()->update();
 		} break;
 
 		case NOTIFICATION_ENTER_TREE: {
diff --git a/editor/editor_resource_preview.cpp b/editor/editor_resource_preview.cpp
index 6d5b20e591..dffb378408 100644
--- a/editor/editor_resource_preview.cpp
+++ b/editor/editor_resource_preview.cpp
@@ -430,12 +430,8 @@ void EditorResourcePreview::check_for_invalidation(const String &p_path) {
 }
 
 void EditorResourcePreview::start() {
-	if (OS::get_singleton()->get_render_main_thread_mode() == OS::RENDER_ANY_THREAD) {
-		ERR_FAIL_COND_MSG(thread.is_started(), "Thread already started.");
-		thread.start(_thread_func, this);
-	} else {
-		_mainthread_only = true;
-	}
+	ERR_FAIL_COND_MSG(thread.is_started(), "Thread already started.");
+	thread.start(_thread_func, this);
 }
 
 void EditorResourcePreview::stop() {
@@ -458,18 +454,3 @@ EditorResourcePreview::EditorResourcePreview() {
 EditorResourcePreview::~EditorResourcePreview() {
 	stop();
 }
-
-void EditorResourcePreview::update() {
-	if (!_mainthread_only) {
-		return;
-	}
-
-	if (!exit.is_set()) {
-		// no need to even lock the mutex if the size is zero
-		// there is no problem if queue.size() is wrong, even if
-		// there was a race condition.
-		if (queue.size()) {
-			_iterate();
-		}
-	}
-}
diff --git a/editor/editor_resource_preview.h b/editor/editor_resource_preview.h
index 769340c36f..4e91df8e08 100644
--- a/editor/editor_resource_preview.h
+++ b/editor/editor_resource_preview.h
@@ -81,11 +81,6 @@ class EditorResourcePreview : public Node {
 	SafeFlag exit;
 	SafeFlag exited;
 
-	// when running from GLES, we want to run the previews
-	// in the main thread using an update, rather than create
-	// a separate thread
-	bool _mainthread_only = false;
-
 	struct Item {
 		Ref<Texture2D> preview;
 		Ref<Texture2D> small_preview;
@@ -125,9 +120,6 @@ public:
 	void start();
 	void stop();
 
-	// for single threaded mode
-	void update();
-
 	EditorResourcePreview();
 	~EditorResourcePreview();
 };