💿🐜 Antkeeper source code
https://antkeeper.com
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
328 lines
7.8 KiB
328 lines
7.8 KiB
/*
|
|
* Copyright (C) 2023 Christopher J. Howard
|
|
*
|
|
* This file is part of Antkeeper source code.
|
|
*
|
|
* Antkeeper source code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Antkeeper source code 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef ANTKEEPER_SCENE_CAMERA_HPP
|
|
#define ANTKEEPER_SCENE_CAMERA_HPP
|
|
|
|
#include <engine/scene/object.hpp>
|
|
#include <engine/geom/view-frustum.hpp>
|
|
#include <engine/geom/primitives/ray.hpp>
|
|
#include <engine/utility/fundamental-types.hpp>
|
|
#include <engine/render/compositor.hpp>
|
|
|
|
namespace scene {
|
|
|
|
/**
|
|
*
|
|
*/
|
|
class camera: public object<camera>
|
|
{
|
|
public:
|
|
typedef geom::view_frustum<float> view_frustum_type;
|
|
|
|
camera();
|
|
|
|
/**
|
|
* Constructs a picking ray from normalized device coordinates (NDC).
|
|
*
|
|
* @param ndc NDC coordinates.
|
|
*
|
|
* @return Picking ray.
|
|
*/
|
|
geom::primitive::ray<float, 3> pick(const float2& ndc) const;
|
|
|
|
/**
|
|
* Maps object coordinates to window coordinates.
|
|
*
|
|
* @param object Object coordinates.
|
|
* @param viewport Vector containing the `x`, `y`, `w`, and `h` of the viewport.
|
|
* @return Projected window coordinates.
|
|
*/
|
|
float3 project(const float3& object, const float4& viewport) const;
|
|
|
|
/**
|
|
* Maps window coordinates to object coordinates.
|
|
*
|
|
* @param window Window coordinates.
|
|
* @param viewport Vector containing the `x`, `y`, `w`, and `h` of the viewport.
|
|
* @return Unprojected object coordinates.
|
|
*/
|
|
float3 unproject(const float3& window, const float4& viewport) const;
|
|
|
|
/**
|
|
* Sets the camera's projection matrix using perspective projection.
|
|
*
|
|
* @param fov Vertical field of view.
|
|
* @param aspect_ratio Aspect ratio.
|
|
* @param clip_near Distance to near clipping plane.
|
|
* @param clip_far Distance to far clipping plane.
|
|
*/
|
|
void set_perspective(float fov, float aspect_ratio, float clip_near, float clip_far);
|
|
|
|
/**
|
|
* Sets the camera's projection matrix using orthographic projection.
|
|
*
|
|
* @param clip_left Signed distance to left clipping plane.
|
|
* @param clip_right Signed distance to right clipping plane.
|
|
* @param clip_bottom Signed distance to bottom clipping plane.
|
|
* @param clip_top Signed distance to top clipping plane.
|
|
* @param clip_near Signed distance to near clipping plane.
|
|
* @param clip_far Signed distance to far clipping plane.
|
|
*/
|
|
void set_orthographic(float clip_left, float clip_right, float clip_bottom, float clip_top, float clip_near, float clip_far);
|
|
|
|
/**
|
|
* Sets the camera's ISO 100 exposure value directly
|
|
*
|
|
* @param ev100 ISO 100 exposure value.
|
|
*/
|
|
void set_exposure(float ev100);
|
|
|
|
void set_compositor(render::compositor* compositor);
|
|
void set_composite_index(int index);
|
|
|
|
|
|
virtual const bounding_volume_type& get_local_bounds() const;
|
|
virtual const bounding_volume_type& get_world_bounds() const;
|
|
|
|
float is_orthographic() const;
|
|
float get_clip_left() const;
|
|
float get_clip_right() const;
|
|
float get_clip_bottom() const;
|
|
float get_clip_top() const;
|
|
float get_clip_near() const;
|
|
float get_clip_far() const;
|
|
float get_fov() const;
|
|
float get_aspect_ratio() const;
|
|
|
|
/// Returns the camera's view matrix.
|
|
const float4x4& get_view() const;
|
|
|
|
/// Returns the camera's projection matrix.
|
|
const float4x4& get_projection() const;
|
|
|
|
/// Returns the camera's view-projection matrix.
|
|
const float4x4& get_view_projection() const;
|
|
|
|
/// Returns the camera's view frustum.
|
|
const view_frustum_type& get_view_frustum() const;
|
|
|
|
/// Returns the camera's ISO 100 exposure value.
|
|
float get_exposure() const;
|
|
|
|
const render::compositor* get_compositor() const;
|
|
render::compositor* get_compositor();
|
|
int get_composite_index() const;
|
|
|
|
const tween<float>& get_clip_left_tween() const;
|
|
const tween<float>& get_clip_right_tween() const;
|
|
const tween<float>& get_clip_bottom_tween() const;
|
|
const tween<float>& get_clip_top_tween() const;
|
|
const tween<float>& get_clip_near_tween() const;
|
|
const tween<float>& get_clip_far_tween() const;
|
|
const tween<float>& get_fov_tween() const;
|
|
const tween<float>& get_aspect_ratio_tween() const;
|
|
const tween<float4x4>& get_view_tween() const;
|
|
const tween<float4x4>& get_projection_tween() const;
|
|
const tween<float4x4>& get_view_projection_tween() const;
|
|
const tween<float>& get_exposure_tween() const;
|
|
|
|
/// @copydoc object_base::update_tweens();
|
|
virtual void update_tweens();
|
|
|
|
private:
|
|
virtual void transformed();
|
|
|
|
render::compositor* compositor;
|
|
int composite_index;
|
|
bool orthographic;
|
|
tween<float> clip_left;
|
|
tween<float> clip_right;
|
|
tween<float> clip_bottom;
|
|
tween<float> clip_top;
|
|
tween<float> clip_near;
|
|
tween<float> clip_far;
|
|
tween<float> fov;
|
|
tween<float> aspect_ratio;
|
|
tween<float4x4> view;
|
|
tween<float4x4> projection;
|
|
tween<float4x4> view_projection;
|
|
tween<float> exposure;
|
|
view_frustum_type view_frustum;
|
|
};
|
|
|
|
inline const typename object_base::bounding_volume_type& camera::get_local_bounds() const
|
|
{
|
|
/// @TODO: return local bounds, not world bounds
|
|
return view_frustum.get_bounds();
|
|
}
|
|
|
|
inline const typename object_base::bounding_volume_type& camera::get_world_bounds() const
|
|
{
|
|
return view_frustum.get_bounds();
|
|
}
|
|
|
|
inline float camera::is_orthographic() const
|
|
{
|
|
return orthographic;
|
|
}
|
|
|
|
inline float camera::get_clip_left() const
|
|
{
|
|
return clip_left[1];
|
|
}
|
|
|
|
inline float camera::get_clip_right() const
|
|
{
|
|
return clip_right[1];
|
|
}
|
|
|
|
inline float camera::get_clip_bottom() const
|
|
{
|
|
return clip_bottom[1];
|
|
}
|
|
|
|
inline float camera::get_clip_top() const
|
|
{
|
|
return clip_top[1];
|
|
}
|
|
|
|
inline float camera::get_clip_near() const
|
|
{
|
|
return clip_near[1];
|
|
}
|
|
|
|
inline float camera::get_clip_far() const
|
|
{
|
|
return clip_far[1];
|
|
}
|
|
|
|
inline float camera::get_fov() const
|
|
{
|
|
return fov[1];
|
|
}
|
|
|
|
inline float camera::get_aspect_ratio() const
|
|
{
|
|
return aspect_ratio[1];
|
|
}
|
|
|
|
inline const float4x4& camera::get_view() const
|
|
{
|
|
return view[1];
|
|
}
|
|
|
|
inline const float4x4& camera::get_projection() const
|
|
{
|
|
return projection[1];
|
|
}
|
|
|
|
inline const float4x4& camera::get_view_projection() const
|
|
{
|
|
return view_projection[1];
|
|
}
|
|
|
|
inline const typename camera::view_frustum_type& camera::get_view_frustum() const
|
|
{
|
|
return view_frustum;
|
|
}
|
|
|
|
inline float camera::get_exposure() const
|
|
{
|
|
return exposure[1];
|
|
}
|
|
|
|
inline const render::compositor* camera::get_compositor() const
|
|
{
|
|
return compositor;
|
|
}
|
|
|
|
inline render::compositor* camera::get_compositor()
|
|
{
|
|
return compositor;
|
|
}
|
|
|
|
inline int camera::get_composite_index() const
|
|
{
|
|
return composite_index;
|
|
}
|
|
|
|
inline const tween<float>& camera::get_clip_left_tween() const
|
|
{
|
|
return clip_left;
|
|
}
|
|
|
|
inline const tween<float>& camera::get_clip_right_tween() const
|
|
{
|
|
return clip_right;
|
|
}
|
|
|
|
inline const tween<float>& camera::get_clip_bottom_tween() const
|
|
{
|
|
return clip_bottom;
|
|
}
|
|
|
|
inline const tween<float>& camera::get_clip_top_tween() const
|
|
{
|
|
return clip_top;
|
|
}
|
|
|
|
inline const tween<float>& camera::get_clip_near_tween() const
|
|
{
|
|
return clip_near;
|
|
}
|
|
|
|
inline const tween<float>& camera::get_clip_far_tween() const
|
|
{
|
|
return clip_far;
|
|
}
|
|
|
|
inline const tween<float>& camera::get_fov_tween() const
|
|
{
|
|
return fov;
|
|
}
|
|
|
|
inline const tween<float>& camera::get_aspect_ratio_tween() const
|
|
{
|
|
return aspect_ratio;
|
|
}
|
|
|
|
inline const tween<float4x4>& camera::get_view_tween() const
|
|
{
|
|
return view;
|
|
}
|
|
|
|
inline const tween<float4x4>& camera::get_projection_tween() const
|
|
{
|
|
return projection;
|
|
}
|
|
|
|
inline const tween<float4x4>& camera::get_view_projection_tween() const
|
|
{
|
|
return view_projection;
|
|
}
|
|
|
|
inline const tween<float>& camera::get_exposure_tween() const
|
|
{
|
|
return exposure;
|
|
}
|
|
|
|
} // namespace scene
|
|
|
|
#endif // ANTKEEPER_SCENE_CAMERA_HPP
|