ViewerCore.h

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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2014 Daniele Panozzo <daniele.panozzo@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
#ifndef IGL_OPENGL_VIEWERCORE_H
#define IGL_OPENGL_VIEWERCORE_H
 
#include "MeshGL.h"
 
#include "../igl_inline.h"
#include <Eigen/Geometry>
#include <Eigen/Core>
 
namespace igl
{
namespace opengl
{
 
// Forward declaration
class ViewerData;
 
class ViewerCore
{
public:
  using GLuint = MeshGL::GLuint;
  IGL_INLINE ViewerCore();
 
  IGL_INLINE void init();
 
  IGL_INLINE void shut();
 
  IGL_INLINE void InitSerialization();
 
  IGL_INLINE void align_camera_center(
    const Eigen::MatrixXd& V,
    const Eigen::MatrixXi& F);
  IGL_INLINE void align_camera_center(
    const Eigen::MatrixXd& V);
 
  IGL_INLINE void get_scale_and_shift_to_fit_mesh(
    const Eigen::MatrixXd& V,
    const Eigen::MatrixXi& F,
    float & zoom,
    Eigen::Vector3f& shift);
  IGL_INLINE void get_scale_and_shift_to_fit_mesh(
    const Eigen::MatrixXd& V,
    float & zoom,
    Eigen::Vector3f& shift);
 
  IGL_INLINE void clear_framebuffers();
 
  IGL_INLINE void draw(ViewerData& data, bool update_matrices = true);
  IGL_INLINE void initialize_shadow_pass();
  IGL_INLINE void deinitialize_shadow_pass();
  IGL_INLINE void draw_shadow_pass(ViewerData& data, bool update_matrices = true);
  IGL_INLINE void draw_buffer(
    ViewerData& data,
    bool update_matrices,
    Eigen::Matrix<unsigned char,Eigen::Dynamic,Eigen::Dynamic>& R,
    Eigen::Matrix<unsigned char,Eigen::Dynamic,Eigen::Dynamic>& G,
    Eigen::Matrix<unsigned char,Eigen::Dynamic,Eigen::Dynamic>& B,
    Eigen::Matrix<unsigned char,Eigen::Dynamic,Eigen::Dynamic>& A);
  IGL_INLINE void draw_labels(
    ViewerData& data,
    const igl::opengl::MeshGL::TextGL& labels
  );
 
  enum RotationType
  {
    ROTATION_TYPE_TRACKBALL = 0,
    ROTATION_TYPE_TWO_AXIS_VALUATOR_FIXED_UP = 1,
    ROTATION_TYPE_NO_ROTATION = 2,
    NUM_ROTATION_TYPES = 3
  };
  IGL_INLINE void set_rotation_type(const RotationType & value);
 
  IGL_INLINE void set(unsigned int &property_mask, bool value = true) const;
 
  IGL_INLINE void unset(unsigned int &property_mask) const;
 
  IGL_INLINE void toggle(unsigned int &property_mask) const;
 
  IGL_INLINE bool is_set(unsigned int property_mask) const;
 
  IGL_INLINE void delete_shadow_buffers();
  IGL_INLINE void generate_shadow_buffers();
 
  // ------------------- Properties
 
  unsigned int id = 1u;
 
  Eigen::Vector4f background_color;
 
  Eigen::Vector3f light_position;
  bool is_directional_light;
  bool is_shadow_mapping;
  GLuint shadow_width;
  GLuint shadow_height;
  GLuint shadow_depth_tex;
  GLuint shadow_depth_fbo;
  GLuint shadow_color_rbo;
  float lighting_factor;
 
  RotationType rotation_type;
  Eigen::Quaternionf trackball_angle;
 
  float camera_base_zoom;
  float camera_zoom;
  bool orthographic;
  Eigen::Vector3f camera_base_translation;
  Eigen::Vector3f camera_translation;
  Eigen::Vector3f camera_eye;
  Eigen::Vector3f camera_up;
  Eigen::Vector3f camera_center;
  float camera_view_angle;
  float camera_dnear;
  float camera_dfar;
 
  bool depth_test;
 
  bool is_animating;
  double animation_max_fps;
 
  float object_scale;
 
  Eigen::Vector4f viewport;
 
  Eigen::Matrix4f view;
  Eigen::Matrix4f proj;
  Eigen::Matrix4f norm;
  Eigen::Matrix4f shadow_view;
  Eigen::Matrix4f shadow_proj;
  public:
      EIGEN_MAKE_ALIGNED_OPERATOR_NEW
};
 
}
}
 
#include "../serialize.h"
namespace igl {
  namespace serialization {
 
    inline void serialization(bool s, igl::opengl::ViewerCore& obj, std::vector<char>& buffer)
    {
 
      SERIALIZE_MEMBER(background_color);
 
      SERIALIZE_MEMBER(light_position);
      SERIALIZE_MEMBER(lighting_factor);
 
      SERIALIZE_MEMBER(trackball_angle);
      SERIALIZE_MEMBER(rotation_type);
 
      SERIALIZE_MEMBER(camera_base_zoom);
      SERIALIZE_MEMBER(camera_zoom);
      SERIALIZE_MEMBER(orthographic);
      SERIALIZE_MEMBER(camera_base_translation);
      SERIALIZE_MEMBER(camera_translation);
      SERIALIZE_MEMBER(camera_view_angle);
      SERIALIZE_MEMBER(camera_dnear);
      SERIALIZE_MEMBER(camera_dfar);
      SERIALIZE_MEMBER(camera_eye);
      SERIALIZE_MEMBER(camera_center);
      SERIALIZE_MEMBER(camera_up);
 
      SERIALIZE_MEMBER(depth_test);
      SERIALIZE_MEMBER(is_animating);
      SERIALIZE_MEMBER(animation_max_fps);
 
      SERIALIZE_MEMBER(object_scale);
 
      SERIALIZE_MEMBER(viewport);
      SERIALIZE_MEMBER(view);
      SERIALIZE_MEMBER(proj);
      SERIALIZE_MEMBER(norm);
    }
 
    template<>
    inline void serialize(const igl::opengl::ViewerCore& obj, std::vector<char>& buffer)
    {
      serialization(true, const_cast<igl::opengl::ViewerCore&>(obj), buffer);
    }
 
    template<>
    inline void deserialize(igl::opengl::ViewerCore& obj, const std::vector<char>& buffer)
    {
      serialization(false, obj, const_cast<std::vector<char>&>(buffer));
    }
  }
}
 
#ifndef IGL_STATIC_LIBRARY
#  include "ViewerCore.cpp"
#endif
 
#endif