diff --git a/libs/vecr/include/psemek/vecr/renderer.hpp b/libs/vecr/include/psemek/vecr/renderer.hpp
index ae9fceed..d26e7361 100644
--- a/libs/vecr/include/psemek/vecr/renderer.hpp
+++ b/libs/vecr/include/psemek/vecr/renderer.hpp
@@ -23,6 +23,7 @@ namespace psemek::vecr
 	struct renderer
 	{
 		void reset(math::vector<std::size_t, 2> const & size, std::size_t samples = 4, gfx::color_rgba const & color = {0, 0, 0, 0});
+		void reset(gfx::pixmap_rgba image, std::size_t samples = 4);
 
 		math::vector<std::size_t, 2> size() const;
 		std::size_t samples() const;
diff --git a/libs/vecr/source/renderer.cpp b/libs/vecr/source/renderer.cpp
index e6eb5789..330d1c0b 100644
--- a/libs/vecr/source/renderer.cpp
+++ b/libs/vecr/source/renderer.cpp
@@ -12,6 +12,15 @@ namespace psemek::vecr
 		need_resolve_ = false;
 	}
 
+	void renderer::reset(gfx::pixmap_rgba image, std::size_t samples)
+	{
+		result_ = std::move(image);
+		canvas_.resize({result_.width() * samples, result_.height() * samples});
+		for (auto idx : canvas_.indices())
+			canvas_(idx) = result_({idx[0] / samples, idx[1] / samples});
+		need_resolve_ = false;
+	}
+
 	math::vector<std::size_t, 2> renderer::size() const
 	{
 		return {result_.width(), result_.height()};