diff --git a/libs/geom/include/psemek/geom/camera.hpp b/libs/geom/include/psemek/geom/camera.hpp
index 0283d738..7969bcff 100644
--- a/libs/geom/include/psemek/geom/camera.hpp
+++ b/libs/geom/include/psemek/geom/camera.hpp
@@ -3,6 +3,7 @@
 #include <psemek/geom/vector.hpp>
 #include <psemek/geom/point.hpp>
 #include <psemek/geom/matrix.hpp>
+#include <psemek/geom/box.hpp>
 
 namespace psemek::geom
 {
@@ -31,6 +32,24 @@ namespace psemek::geom
 		virtual ~camera() = default;
 	};
 
+	struct window_camera
+		: camera
+	{
+		float width, height;
+
+		matrix<float, 4, 4> view() const override;
+		matrix<float, 4, 4> projection() const override;
+	};
+
+	struct orthographic_camera
+		: camera
+	{
+		geom::box<float_t, 3> box;
+
+		matrix<float, 4, 4> view() const override;
+		matrix<float, 4, 4> projection() const override;
+	};
+
 	struct perspective_camera
 		: camera
 	{
diff --git a/libs/geom/source/camera.cpp b/libs/geom/source/camera.cpp
index 83c591fe..1bb8ef7b 100644
--- a/libs/geom/source/camera.cpp
+++ b/libs/geom/source/camera.cpp
@@ -1,5 +1,6 @@
 #include <psemek/geom/camera.hpp>
 #include <psemek/geom/gauss.hpp>
+#include <psemek/geom/orthographic.hpp>
 #include <psemek/geom/perspective.hpp>
 #include <psemek/geom/translation.hpp>
 #include <psemek/geom/rotation.hpp>
@@ -68,6 +69,26 @@ namespace psemek::geom
 		return p;
 	}
 
+	matrix<float, 4, 4> window_camera::view() const
+	{
+		return matrix<float, 4, 4>::identity();
+	}
+
+	matrix<float, 4, 4> window_camera::projection() const
+	{
+		return orthographic<float, 3>({{ {0.f, width}, {height, 0.f}, {-1.f, 1.f} }}).homogeneous_matrix();
+	}
+
+	matrix<float, 4, 4> orthographic_camera::view() const
+	{
+		return matrix<float, 4, 4>::identity();
+	}
+
+	matrix<float, 4, 4> orthographic_camera::projection() const
+	{
+		return orthographic<float, 3>(box).homogeneous_matrix();
+	}
+
 	matrix<float, 4, 4> perspective_camera::projection() const
 	{
 		return perspective<float, 3>(fov_x, fov_y, near_clip, far_clip).homogeneous_matrix();