diff --git a/main.cpp b/main.cpp
index 5c6d88b..2a37db2 100644
--- a/main.cpp
+++ b/main.cpp
@@ -95,25 +95,32 @@ int main() try {
 
 	window_t window{SDL_CreateWindow(
 		"random walk", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, width,
-		height, 0//SDL_WINDOW_FULLSCREEN
+		height, 0 // SDL_WINDOW_FULLSCREEN
 	)};
-
-	// owned by window
-	auto* window_surface = sdl_check(SDL_GetWindowSurface(window));
-	if (window_surface->format->palette) {
-		std::println("unsupported window format, palette");
-		return EXIT_FAILURE;
+	renderer_t renderer{SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED)
+	};
+	SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
+	sdl_check(SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE));
+	sdl_check(SDL_RenderClear(renderer));
+	sdl_check(SDL_SetRenderDrawColor(renderer, 0, 0, 255, SDL_ALPHA_OPAQUE));
+	{
+		// dump renderer info
+		SDL_RendererInfo renderer_info;
+		SDL_GetRendererInfo(renderer, &renderer_info);
+		std::println("Renderer name: {}", renderer_info.name);
+		std::println("Texture formats: ");
+		for (Uint32 i = 0; i < renderer_info.num_texture_formats; i++) {
+			std::puts(SDL_GetPixelFormatName(renderer_info.texture_formats[i]));
+		}
 	}
-	std::println(
-		"got surface with {} bits per pixel",
-		window_surface->format->BitsPerPixel
+
+	// no clue who owns this
+	auto* texture = SDL_CreateTexture(
+		renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_TARGET, width,
+		height
 	);
-	if (!(window_surface->format->format & SDL_PIXELFORMAT_RGBA32)) {
-		std::println("unsupported window format, rgb");
-		return EXIT_FAILURE;
-	}
 
-	SDL_Point pos{.x = width / 2, .y = height / 2};
+		SDL_Point pos{.x = width / 2, .y = height / 2};
 	constexpr SDL_Point directions[] = {
 		{.x = -1, .y = 0}, {.x = 1, .y = 0}, {.x = 0, .y = -1}, {.x = 0, .y = 1}
 	};
@@ -123,13 +130,7 @@ int main() try {
 	//                              aarrggbb??
 	constexpr Uint32 bg_color = 0xffdbd7c0;
 	constexpr Uint32 walk_color = 0xff0d0f14;
-	constexpr auto batchsize = 1000;
-
-	sdl_check(SDL_LockSurface(window_surface));
-	for (int i = 0; i < window_surface->w * window_surface->h; ++i) {
-		static_cast<Uint32*>(window_surface->pixels)[i] = bg_color;
-	}
-	SDL_UnlockSurface(window_surface);
+	constexpr auto batchsize = 1;
 
 	const auto start_time = clock::now();
 	auto next_poll_events_time = start_time;
@@ -149,7 +150,7 @@ int main() try {
 			);
 		}
 
-		sdl_check(SDL_LockSurface(window_surface));
+		sdl_check(SDL_SetRenderTarget(renderer, texture));
 		for (auto step = 0z; step < batchsize; ++step) {
 			SDL_Point newpoint;
 			do {
@@ -157,15 +158,17 @@ int main() try {
 			} while (newpoint.x < 0 or newpoint.x >= width or newpoint.y < 0 or
 			         newpoint.y >= height);
 			pos = newpoint;
-			static_cast<Uint32*>(window_surface->pixels
-			)[pos.x + pos.y * window_surface->w] = walk_color;
+			sdl_check(SDL_RenderDrawPoint(renderer, pos.x, pos.y));
 		}
-		SDL_UnlockSurface(window_surface);
-		sdl_check(SDL_UpdateWindowSurface(window));
+
+		sdl_check(SDL_SetRenderTarget(renderer, nullptr));
+		sdl_check(SDL_RenderCopy(renderer, texture, nullptr, nullptr));
+		SDL_RenderPresent(renderer);
 	}
 
 	// leaking memory, nothing I can do
 } catch (const std::exception& e) {
+
 	std::puts(e.what());
 	return EXIT_FAILURE;
 }
\ No newline at end of file