Batch viewport render commands with main render commands

I don't know why I did it the other way...?

engine/core/include/app.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 class Engine;
+class GFXCommandBuffer;
 
 /// The base class for any Prism application.
 class App {
@@ -23,6 +24,8 @@ public:
      @param delta_time Delta time in milliseconds.
      */
     virtual void update([[maybe_unused]] const float delta_time) {}
+
+    virtual void render([[maybe_unused]] GFXCommandBuffer* command_buffer) {}
 };
 
 /// This is an app's equivalent main(). You can check command line arguments through Engine::comand_line_arguments.

engine/core/src/engine.cpp

@@ -759,8 +759,14 @@ void Engine::render(const int index) {
         _imgui->render(0);
     }
 
+    GFXCommandBuffer* commandbuffer = _gfx->acquire_command_buffer();
+
+    _app->render(commandbuffer);
+
     if(window->renderer != nullptr)
-        window->renderer->render(_current_scene, index);
+        window->renderer->render(commandbuffer, _current_scene, index);
+
+    _gfx->submit(commandbuffer, index);
 }
 
 void Engine::add_timer(Timer& timer) {

engine/renderer/include/renderer.hpp

@@ -70,7 +70,8 @@ public:
         int elementOffset = 0;
     };
 
-    void render(Scene* scene, int index);
+    void start_render(Scene* scene, int index);
+    void render(GFXCommandBuffer* command_buffer, Scene* scene, int index);
 
     void render_screen(GFXCommandBuffer* commandBuffer, ui::Screen* screen, ControllerContinuity& continuity, RenderScreenOptions options = RenderScreenOptions());
     void render_camera(GFXCommandBuffer* command_buffer, Scene& scene, Object camera_object, Camera& camera, prism::Extent extent, ControllerContinuity& continuity);

engine/renderer/src/renderer.cpp

@@ -211,9 +211,15 @@ void Renderer::stopSceneBlur() {
     blurring = false;
 }
 
-void Renderer::render(Scene* scene, int index) {
+void Renderer::start_render(Scene* scene, int index) {
     GFXCommandBuffer* commandbuffer = engine->get_gfx()->acquire_command_buffer();
 
+    render(commandbuffer, scene, index);
+
+    gfx->submit(commandbuffer, index);
+}
+
+void Renderer::render(GFXCommandBuffer* commandbuffer, Scene* scene, int index) {    
     if(render_options.render_scale != current_render_scale) {
         if(viewport_mode)
             resize_viewport(viewport_extent);
@@ -406,8 +412,6 @@ void Renderer::render(Scene* scene, int index) {
         pass->render_post(commandbuffer, index);
     
     commandbuffer->pop_group();
-
-    gfx->submit(commandbuffer, index);
 }
 
 void Renderer::render_camera(GFXCommandBuffer* command_buffer, Scene& scene, Object camera_object, Camera& camera, prism::Extent extent, ControllerContinuity& continuity) {

tools/common/include/commoneditor.hpp

@@ -117,6 +117,12 @@ public:
 
     void update(float deltaTime) override;
     
+    virtual void renderEditor([[maybe_unused]] GFXCommandBuffer* command_buffer) {}
+
+    void render(GFXCommandBuffer* command_buffer) override {
+        renderEditor(command_buffer);
+    }
+
     virtual void updateEditor([[maybe_unused]] float deltaTime) {}
 
     virtual void object_selected([[maybe_unused]] Object object) {}

tools/editor/include/prismeditor.hpp

@@ -56,6 +56,7 @@ class PrismEditor : public CommonEditor {
 public:
     PrismEditor();
     
+    void renderEditor(GFXCommandBuffer* command_buffer) override;
     void drawUI() override;
     void updateEditor(float deltaTime) override;
     

tools/editor/src/prismeditor.cpp

@@ -179,6 +179,12 @@ void PrismEditor::open_asset(const file::Path path) {
     }
 }
 
+void PrismEditor::renderEditor(GFXCommandBuffer* command_buffer) {
+    for (auto& editor : editors) {
+        editor->renderer->render(command_buffer, editor->get_scene(), -1);
+    }
+}
+
 void PrismEditor::drawUI() {
     createDockArea();
 
@@ -316,7 +322,6 @@ void PrismEditor::drawUI() {
             if(debugPass != nullptr)
                 debugPass->selected_object = selected_object;
             
-            editor->renderer->render(editor->get_scene(), -1);
             engine->set_current_scene(editor->get_scene());
             set_undo_stack(&editor->undo_stack);
             editor->draw(this);