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Diffstat (limited to 'libdimension/model/camera.c')
-rw-r--r-- | libdimension/model/camera.c | 52 |
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); +} |