/*
 * Copyright 2011-2013 Blender Foundation
 *
 * 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.
 */

#ifndef __BACKGROUND_H__
#define __BACKGROUND_H__

#include "graph/node.h"

#include "util/util_types.h"

CCL_NAMESPACE_BEGIN

class Device;
class DeviceScene;
class Scene;
class Shader;

class Background : public Node {
 public:
  NODE_DECLARE

  NODE_SOCKET_API(float, ao_factor)
  NODE_SOCKET_API(float, ao_distance)

  NODE_SOCKET_API(bool, use_shader)
  NODE_SOCKET_API(bool, use_ao)

  NODE_SOCKET_API(uint, visibility)
  NODE_SOCKET_API(Shader *, shader)

  NODE_SOCKET_API(bool, transparent)
  NODE_SOCKET_API(bool, transparent_glass)
  NODE_SOCKET_API(float, transparent_roughness_threshold)

  NODE_SOCKET_API(float, volume_step_size)

  Background();
  ~Background();

  void device_update(Device *device, DeviceScene *dscene, Scene *scene);
  void device_free(Device *device, DeviceScene *dscene);

  void tag_update(Scene *scene);

  Shader *get_shader(const Scene *scene);
};

CCL_NAMESPACE_END

#endif /* __BACKGROUND_H__ */