diff --git a/betterRenderer/renderer/source/nvrenderer.cpp b/betterRenderer/renderer/source/nvrenderer.cpp
index 40283a31..c936e1db 100644
--- a/betterRenderer/renderer/source/nvrenderer.cpp
+++ b/betterRenderer/renderer/source/nvrenderer.cpp
@@ -92,8 +92,12 @@ bool NvRenderer::Init(GLFWwindow *Window) {
   m_fsr = std::make_shared<NvFSR>(this);
   m_bloom = std::make_shared<Bloom>(GetBackend());
 
-  m_gbuffer->Init(Global.gfx_framebuffer_width, Global.gfx_framebuffer_height,
-                  false, false, false);
+  // protect from undefined framebuffer size in ini (default -1)
+  int w = Global.gfx_framebuffer_width, h = Global.gfx_framebuffer_height;
+  if (w < 0) w = Global.window_size.x;
+  if (h < 0) h = Global.window_size.y;
+
+  m_gbuffer->Init(w, h, false, false, false);
   m_contact_shadows->Init();
   m_shadow_map->Init();
   m_gbuffer_cube->Init(512, 512, true, false, false);
diff --git a/scenarioloaderuilayer.cpp b/scenarioloaderuilayer.cpp
index f54cc64b..8d6d9610 100644
--- a/scenarioloaderuilayer.cpp
+++ b/scenarioloaderuilayer.cpp
@@ -90,8 +90,11 @@ void scenarioloader_ui::render_()
 	const float font_scale_mult = 48 / ImGui::GetFontSize();
 	
 	// Gradient at the lower half of the screen
-	const auto tex = reinterpret_cast<ImTextureID>(m_gradient_overlay_tex);
-	draw_list->AddImage(tex, ImVec2(0, Global.window_size.y / 2), ImVec2(Global.window_size.x, Global.window_size.y), ImVec2(0, 0), ImVec2(1, 1));
+	if (!Global.NvRenderer)
+	{
+		const auto tex = reinterpret_cast<ImTextureID>(m_gradient_overlay_tex);
+		draw_list->AddImage(tex, ImVec2(0, Global.window_size.y / 2), ImVec2(Global.window_size.x, Global.window_size.y), ImVec2(0, 0), ImVec2(1, 1));
+	}
 	
 	// [O] Loading...
 	const float margin_left_icon = 35.0f;
@@ -175,6 +178,8 @@ void scenarioloader_ui::render_()
 
 void scenarioloader_ui::generate_gradient_tex()
 {
+	if (Global.NvRenderer)
+		return;
 	constexpr int image_width = 1;
 	constexpr int image_height = 256;
 	const auto image_data = new char[image_width * image_height * 4];