From 4e2a6e40a77068492e3b63b84a18d0cc7f003fb7 Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Wed, 6 Jan 2010 13:43:14 -0500 Subject: Split up objects, finishes, pigments, lights, cameras, etc. --- libdimension/point_light.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 libdimension/point_light.c (limited to 'libdimension/point_light.c') diff --git a/libdimension/point_light.c b/libdimension/point_light.c new file mode 100644 index 0000000..9862506 --- /dev/null +++ b/libdimension/point_light.c @@ -0,0 +1,52 @@ +/************************************************************************* + * Copyright (C) 2009 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 * + * . * + *************************************************************************/ + +#include "dimension.h" + +/* + * Point light source + */ + +static dmnsn_color +dmnsn_point_light_fn(const dmnsn_light *light, dmnsn_vector v) +{ + return *(dmnsn_color *)light->ptr; +} + +dmnsn_light * +dmnsn_new_point_light(dmnsn_vector x0, dmnsn_color color) +{ + dmnsn_light *light = dmnsn_new_light(); + if (light) { + /* Allocate room for the transformation matrix */ + dmnsn_color *ptr = malloc(sizeof(dmnsn_color)); + if (!ptr) { + dmnsn_delete_light(light); + return NULL; + } + *ptr = color; + + light->x0 = x0; + light->light_fn = &dmnsn_point_light_fn; + light->free_fn = &free; + light->ptr = ptr; + } + return light; +} -- cgit v1.2.3