diff --git a/libs/vecr/source/renderer.cpp b/libs/vecr/source/renderer.cpp
index 22ef4c39..8c877ca6 100644
--- a/libs/vecr/source/renderer.cpp
+++ b/libs/vecr/source/renderer.cpp
@@ -60,10 +60,10 @@ namespace psemek::vecr
 
 		auto const box = geom::expand(bbox(primitive.mask), aa);
 
-		int xmin = std::max<int>(0, std::floor(box[0].min) * samples_);
-		int xmax = std::min<int>(canvas_.width() - 1, std::ceil(box[0].max) * samples_);
-		int ymin = std::max<int>(0, std::floor(box[1].min) * samples_);
-		int ymax = std::min<int>(canvas_.height() - 1, std::ceil(box[1].max) * samples_);
+		int xmin = std::floor(std::max(0.f, box[0].min * samples_));
+		int xmax = std::floor(std::min(canvas_.width() - 1.f, box[0].max * samples_));
+		int ymin = std::floor(std::max(0.f, box[1].min * samples_));
+		int ymax = std::floor(std::min(canvas_.height() - 1.f, box[1].max * samples_));
 
 		for (int y = ymin; y <= ymax; ++y)
 		{