render() method on viewer now requires a SwapChain argument

thermion_dart/lib/src/viewer/src/ffi/src/thermion_viewer_ffi.dart

@@ -122,15 +122,14 @@ class ThermionViewerFFI extends ThermionViewer {
   ///
   ///
   @override
-  Future render() async {
-    await withVoidCallback(
-      (requestId, cb) => RenderTicker_renderRenderThread(
-        app.renderTicker,
-        0.toBigInt,
-        requestId,
-        cb,
-      ),
-    );
+  Future render(SwapChain swapchain) async {
+    await withBoolCallback((cb) => Renderer_beginFrameRenderThread(
+        app.renderer, (swapchain as FFISwapChain).swapChain, 0.toBigInt, cb));
+
+    await withVoidCallback((requestId, cb) =>
+        Renderer_renderRenderThread(app.renderer, view.view, requestId, cb));
+    await withVoidCallback((requestId, cb) =>
+        Renderer_endFrameRenderThread(app.renderer, requestId, cb));
     await FilamentApp.instance!.flush();
   }
 

thermion_dart/lib/src/viewer/src/thermion_viewer_base.dart

@@ -42,7 +42,7 @@ abstract class ThermionViewer {
   ///
   /// Render a single frame immediately.
   ///
-  Future render();
+  Future render(SwapChain swapChain);
 
   ///
   ///