mirror of https://github.com/minetest/minetest.git
148 lines
4.3 KiB
C++
148 lines
4.3 KiB
C++
/*
|
|
Minetest
|
|
Copyright (C) 2021 Liso <anlismon@gmail.com>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
#include "irrlichttypes_extrabloated.h"
|
|
#include "client/shadows/dynamicshadows.h"
|
|
|
|
class ShadowDepthShaderCB;
|
|
class shadowScreenQuad;
|
|
class shadowScreenQuadCB;
|
|
|
|
enum E_SHADOW_MODE : u8
|
|
{
|
|
ESM_RECEIVE = 0,
|
|
ESM_BOTH,
|
|
};
|
|
|
|
struct NodeToApply
|
|
{
|
|
NodeToApply(scene::ISceneNode *n,
|
|
E_SHADOW_MODE m = E_SHADOW_MODE::ESM_BOTH) :
|
|
node(n),
|
|
shadowMode(m){};
|
|
bool operator<(const NodeToApply &other) const { return node < other.node; };
|
|
|
|
scene::ISceneNode *node;
|
|
|
|
E_SHADOW_MODE shadowMode{E_SHADOW_MODE::ESM_BOTH};
|
|
bool dirty{false};
|
|
};
|
|
|
|
class ShadowRenderer
|
|
{
|
|
public:
|
|
ShadowRenderer(IrrlichtDevice *device, Client *client);
|
|
|
|
~ShadowRenderer();
|
|
|
|
void initialize();
|
|
|
|
/// Adds a directional light shadow map (Usually just one (the sun) except in
|
|
/// Tattoine ).
|
|
size_t addDirectionalLight();
|
|
DirectionalLight &getDirectionalLight(u32 index = 0);
|
|
size_t getDirectionalLightCount() const;
|
|
f32 getMaxShadowFar() const;
|
|
|
|
/// Adds a shadow to the scene node.
|
|
/// The shadow mode can be ESM_BOTH, or ESM_RECEIVE.
|
|
/// ESM_BOTH casts and receives shadows
|
|
/// ESM_RECEIVE only receives but does not cast shadows.
|
|
///
|
|
void addNodeToShadowList(scene::ISceneNode *node,
|
|
E_SHADOW_MODE shadowMode = ESM_BOTH);
|
|
void removeNodeFromShadowList(scene::ISceneNode *node);
|
|
|
|
void update(video::ITexture *outputTarget = nullptr);
|
|
void drawDebug();
|
|
|
|
video::ITexture *get_texture()
|
|
{
|
|
return shadowMapTextureFinal;
|
|
}
|
|
|
|
|
|
bool is_active() const { return m_shadows_enabled; }
|
|
void setTimeOfDay(float isDay) { m_time_day = isDay; };
|
|
|
|
s32 getShadowSamples() const { return m_shadow_samples; }
|
|
float getShadowStrength() const { return m_shadow_strength; }
|
|
float getTimeOfDay() const { return m_time_day; }
|
|
|
|
private:
|
|
video::ITexture *getSMTexture(const std::string &shadow_map_name,
|
|
video::ECOLOR_FORMAT texture_format,
|
|
bool force_creation = false);
|
|
|
|
void renderShadowMap(video::ITexture *target, DirectionalLight &light,
|
|
scene::E_SCENE_NODE_RENDER_PASS pass =
|
|
scene::ESNRP_SOLID);
|
|
void renderShadowObjects(video::ITexture *target, DirectionalLight &light);
|
|
void mixShadowsQuad();
|
|
void updateSMTextures();
|
|
|
|
// a bunch of variables
|
|
IrrlichtDevice *m_device{nullptr};
|
|
scene::ISceneManager *m_smgr{nullptr};
|
|
video::IVideoDriver *m_driver{nullptr};
|
|
Client *m_client{nullptr};
|
|
video::ITexture *shadowMapClientMap{nullptr};
|
|
video::ITexture *shadowMapClientMapFuture{nullptr};
|
|
video::ITexture *shadowMapTextureFinal{nullptr};
|
|
video::ITexture *shadowMapTextureDynamicObjects{nullptr};
|
|
video::ITexture *shadowMapTextureColors{nullptr};
|
|
|
|
std::vector<DirectionalLight> m_light_list;
|
|
std::vector<NodeToApply> m_shadow_node_array;
|
|
|
|
float m_shadow_strength;
|
|
float m_shadow_map_max_distance;
|
|
float m_shadow_map_texture_size;
|
|
float m_time_day{0.0f};
|
|
int m_shadow_samples;
|
|
bool m_shadow_map_texture_32bit;
|
|
bool m_shadows_enabled;
|
|
bool m_shadow_map_colored;
|
|
u8 m_map_shadow_update_frames; /* Use this number of frames to update map shaodw */
|
|
u8 m_current_frame{0}; /* Current frame */
|
|
|
|
video::ECOLOR_FORMAT m_texture_format{video::ECOLOR_FORMAT::ECF_R16F};
|
|
video::ECOLOR_FORMAT m_texture_format_color{video::ECOLOR_FORMAT::ECF_R16G16};
|
|
|
|
// Shadow Shader stuff
|
|
|
|
void createShaders();
|
|
std::string readShaderFile(const std::string &path);
|
|
|
|
s32 depth_shader{-1};
|
|
s32 depth_shader_entities{-1};
|
|
s32 depth_shader_trans{-1};
|
|
s32 mixcsm_shader{-1};
|
|
|
|
ShadowDepthShaderCB *m_shadow_depth_cb{nullptr};
|
|
ShadowDepthShaderCB *m_shadow_depth_trans_cb{nullptr};
|
|
|
|
shadowScreenQuad *m_screen_quad{nullptr};
|
|
shadowScreenQuadCB *m_shadow_mix_cb{nullptr};
|
|
};
|