💿🐜 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.
137 lines
3.5 KiB
137 lines
3.5 KiB
/*
|
|
* Copyright (C) 2021 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_DIRECTIONAL_LIGHT_HPP
|
|
#define ANTKEEPER_SCENE_DIRECTIONAL_LIGHT_HPP
|
|
|
|
#include "scene/light.hpp"
|
|
#include "gl/texture-2d.hpp"
|
|
#include "utility/fundamental-types.hpp"
|
|
|
|
namespace scene {
|
|
|
|
/**
|
|
* Light source with parallel rays and constant intensity.
|
|
*/
|
|
class directional_light: public light
|
|
{
|
|
public:
|
|
/// Creates a directional light.
|
|
directional_light();
|
|
|
|
/**
|
|
* Sets the light texture, also known as a gobo, cucoloris, or cookie.
|
|
*
|
|
* @param texture Light texture.
|
|
*/
|
|
void set_light_texture(const gl::texture_2d* texture);
|
|
|
|
/**
|
|
* Sets the opacity of the light texture.
|
|
*
|
|
* @param opacity Light texture opacity, on `[0, 1]`.
|
|
*/
|
|
void set_light_texture_opacity(float opacity);
|
|
|
|
/**
|
|
* Sets the scale of the light texture.
|
|
*
|
|
* @param scale Scale of the light texture.
|
|
*/
|
|
void set_light_texture_scale(const float2& scale);
|
|
|
|
/// Returns light_type::directional.
|
|
virtual light_type get_light_type() const;
|
|
|
|
/// Returns the normalized direction vector of the light.
|
|
const float3& get_direction() const;
|
|
|
|
/// Returns the light texture for this light, or `nullptr` if no light texture is set.
|
|
const gl::texture_2d* get_light_texture() const;
|
|
|
|
/// Returns the light texture opacity.
|
|
float get_light_texture_opacity() const;
|
|
|
|
/// Returns the light texture scale.
|
|
const float2& get_light_texture_scale() const;
|
|
|
|
/// Returns the light direction tween.
|
|
const tween<float3>& get_direction_tween() const;
|
|
|
|
/// Returns the light texture opacity tween.
|
|
const tween<float>& get_light_texture_opacity_tween() const;
|
|
|
|
/// Returns the light texture scale tween.
|
|
const tween<float2>& get_light_texture_scale_tween() const;
|
|
|
|
/// @copydoc object_base::update_tweens();
|
|
virtual void update_tweens();
|
|
|
|
private:
|
|
virtual void transformed();
|
|
|
|
tween<float3> direction;
|
|
const gl::texture_2d* light_texture;
|
|
tween<float> light_texture_opacity;
|
|
tween<float2> light_texture_scale;
|
|
};
|
|
|
|
inline light_type directional_light::get_light_type() const
|
|
{
|
|
return light_type::directional;
|
|
}
|
|
|
|
inline const float3& directional_light::get_direction() const
|
|
{
|
|
return direction[1];
|
|
}
|
|
|
|
inline const gl::texture_2d* directional_light::get_light_texture() const
|
|
{
|
|
return light_texture;
|
|
}
|
|
|
|
inline float directional_light::get_light_texture_opacity() const
|
|
{
|
|
return light_texture_opacity[1];
|
|
}
|
|
|
|
inline const float2& directional_light::get_light_texture_scale() const
|
|
{
|
|
return light_texture_scale[1];
|
|
}
|
|
|
|
inline const tween<float3>& directional_light::get_direction_tween() const
|
|
{
|
|
return direction;
|
|
}
|
|
|
|
inline const tween<float>& directional_light::get_light_texture_opacity_tween() const
|
|
{
|
|
return light_texture_opacity;
|
|
}
|
|
|
|
inline const tween<float2>& directional_light::get_light_texture_scale_tween() const
|
|
{
|
|
return light_texture_scale;
|
|
}
|
|
|
|
} // namespace scene
|
|
|
|
#endif // ANTKEEPER_SCENE_DIRECTIONAL_LIGHT_HPP
|