1 files changed, 52 insertions, 0 deletions
diff --git a/libdimension/model/camera.c b/libdimension/model/camera.c
new file mode 100644
index 0000000..8d05c28
--- /dev/null
+++ b/libdimension/model/camera.c
@@ -0,0 +1,52 @@
+/*************************************************************************
+ * Copyright (C) 2009-2014 Tavian Barnes <tavianator@tavianator.com>     *
+ *                                                                       *
+ * This file is part of The Dimension Library.                           *
+ *                                                                       *
+ * The Dimension Library is free software; you can redistribute it and/  *
+ * or modify it under the terms of the GNU Lesser General Public License *
+ * as published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version.                       *
+ *                                                                       *
+ * The Dimension Library is distributed in the hope that it will be      *
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty   *
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  *
+ * Lesser General Public License for more details.                       *
+ *                                                                       *
+ * You should have received a copy of the GNU Lesser General Public      *
+ * License along with this program.  If not, see                         *
+ * <http://www.gnu.org/licenses/>.                                       *
+ *************************************************************************/
+
+/**
+ * @file
+ * Cameras.
+ */
+
+#include "internal.h"
+#include "dimension/model.h"
+#include <stdlib.h>
+
+// Allocate a new dummy camera
+dmnsn_camera *
+dmnsn_new_camera(dmnsn_pool *pool)
+{
+  dmnsn_camera *camera = DMNSN_PALLOC(pool, dmnsn_camera);
+  dmnsn_init_camera(camera);
+  return camera;
+}
+
+// Initialize a camera
+void
+dmnsn_init_camera(dmnsn_camera *camera)
+{
+  camera->trans = dmnsn_identity_matrix();
+}
+
+// Invoke the camera ray function
+dmnsn_ray
+dmnsn_camera_ray(const dmnsn_camera *camera, double x, double y)
+{
+  dmnsn_ray ray = camera->ray_fn(camera, x, y);
+  return dmnsn_transform_ray(camera->trans, ray);
+}