From 7b09710392d35fb55b52031d447a542d99fc6b4b Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Tue, 19 Aug 2014 17:10:03 -0400 Subject: Modularize the libdimension codebase. --- libdimension/model/cameras/perspective.c | 47 ++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 libdimension/model/cameras/perspective.c (limited to 'libdimension/model/cameras') diff --git a/libdimension/model/cameras/perspective.c b/libdimension/model/cameras/perspective.c new file mode 100644 index 0000000..6f1a9fc --- /dev/null +++ b/libdimension/model/cameras/perspective.c @@ -0,0 +1,47 @@ +/************************************************************************* + * Copyright (C) 2010-2014 Tavian Barnes * + * * + * 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 * + * . * + *************************************************************************/ + +/** + * @file + * Perspective cameras. + */ + +#include "dimension/model.h" +#include + +/// Perspective camera ray callback. +static dmnsn_ray +dmnsn_perspective_camera_ray_fn(const dmnsn_camera *camera, double x, double y) +{ + dmnsn_ray l = dmnsn_new_ray( + dmnsn_zero, + dmnsn_new_vector(x - 0.5, y - 0.5, 1.0) + ); + return l; +} + +// Create a new perspective camera. +dmnsn_camera * +dmnsn_new_perspective_camera(dmnsn_pool *pool) +{ + dmnsn_camera *camera = dmnsn_new_camera(pool); + camera->ray_fn = dmnsn_perspective_camera_ray_fn; + return camera; +} -- cgit v1.2.3