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-rw-r--r--libdimension/dimension/camera.h47
-rw-r--r--libdimension/dimension/scene.h3
2 files changed, 49 insertions, 1 deletions
diff --git a/libdimension/dimension/camera.h b/libdimension/dimension/camera.h
new file mode 100644
index 0000000..b1c4ebe
--- /dev/null
+++ b/libdimension/dimension/camera.h
@@ -0,0 +1,47 @@
+/*************************************************************************
+ * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.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/>. *
+ *************************************************************************/
+
+#ifndef DIMENSION_CAMERA_H
+#define DIMENSION_CAMERA_H
+
+/*
+ * A camera.
+ */
+
+typedef dmnsn_line dmnsn_camera_ray_fn(const dmnsn_canvas *canvas,
+ unsigned int x, unsigned int y);
+
+typedef struct {
+ /* Generic pointer for camera info */
+ void *ptr;
+
+ /* Callback function */
+ dmnsn_camera_ray_fn *ray_fn;
+} dmnsn_camera;
+
+dmnsn_camera *dmnsn_new_camera();
+void dmnsn_delete_camera(dmnsn_camera *camera);
+
+/* A perspective camera, at the origin, looking at (0, 0, 1) */
+
+dmnsn_camera *dmnsn_new_perspective_camera();
+void dmnsn_delete_perspective_camera(dmnsn_camera *camera);
+
+#endif /* DIMENSION_CAMERA_H */
diff --git a/libdimension/dimension/scene.h b/libdimension/dimension/scene.h
index e075cdd..a6f2e5d 100644
--- a/libdimension/dimension/scene.h
+++ b/libdimension/dimension/scene.h
@@ -28,10 +28,11 @@
typedef struct {
dmnsn_color background;
dmnsn_array *objects;
+ dmnsn_camera *camera;
dmnsn_canvas *canvas;
} dmnsn_scene;
-dmnsn_scene *dmnsn_new_scene(unsigned int x, unsigned int y);
+dmnsn_scene *dmnsn_new_scene();
void dmnsn_delete_scene(dmnsn_scene *scene);
void dmnsn_raytrace_scene(dmnsn_scene *scene);