libcruft-util/noise/lerp.hpp

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Copyright 2011 Danny Robson <danny@nerdcruft.net>
 */

#ifndef __UTIL_NOISE_LERP_HPP
#define __UTIL_NOISE_LERP_HPP

namespace util { namespace lerp {
    template <typename T> T sigmoid (T val);

    template <typename T> T linear  (T a, T b, T weight);
    template <typename T> T cosine  (T a, T b, T weight);
    template <typename T> T cubic   (T a, T b, T weight);
    template <typename T> T quintic (T a, T b, T weight);
    template <typename T> T trunc   (T a, T b, T weight);
} }

#endif