From 9de8a544bc0bae9ebbc2eed10c120a7e14af441e Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Thu, 28 Jul 2011 22:21:53 -0600 Subject: Add leopard pigment. --- libdimension/leopard.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 libdimension/leopard.c (limited to 'libdimension/leopard.c') diff --git a/libdimension/leopard.c b/libdimension/leopard.c new file mode 100644 index 0000000..48986b4 --- /dev/null +++ b/libdimension/leopard.c @@ -0,0 +1,48 @@ +/************************************************************************* + * Copyright (C) 2011 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 + * Leopard pattern. + */ + +#include "dimension.h" +#include + +/** Leopard pattern callback. */ +static double +dmnsn_leopard_pattern_fn(const dmnsn_pattern *leopard, dmnsn_vector v) +{ + double val = (sin(v.x) + sin(v.y) + sin(v.z))/3.0; + return val*val; +} + +/** The singleton instance. */ +static dmnsn_pattern dmnsn_leopard_instance = { + .pattern_fn = dmnsn_leopard_pattern_fn, + .refcount = 1, +}; + +dmnsn_pattern * +dmnsn_new_leopard_pattern(void) +{ + DMNSN_INCREF(&dmnsn_leopard_instance); + return &dmnsn_leopard_instance; +} -- cgit v1.2.3