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godot/servers/visual/visual_server_scene.h

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/*************************************************************************/
/* visual_server_scene.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef VISUALSERVERSCENE_H
#define VISUALSERVERSCENE_H
#include "servers/visual/rasterizer.h"
#include "core/math/bvh.h"
#include "core/math/geometry.h"
#include "core/math/octree.h"
#include "core/os/semaphore.h"
#include "core/os/thread.h"
#include "core/self_list.h"
#include "servers/arvr/arvr_interface.h"
class VisualServerScene {
public:
enum {
MAX_INSTANCE_CULL = 65536,
MAX_LIGHTS_CULLED = 4096,
MAX_REFLECTION_PROBES_CULLED = 4096,
MAX_ROOM_CULL = 32,
MAX_EXTERIOR_PORTALS = 128,
};
uint64_t render_pass;
bool _use_bvh;
static VisualServerScene *singleton;
/* CAMERA API */
struct Camera : public RID_Data {
enum Type {
PERSPECTIVE,
ORTHOGONAL,
FRUSTUM
};
Type type;
float fov;
float znear, zfar;
float size;
Vector2 offset;
uint32_t visible_layers;
bool vaspect;
RID env;
Transform transform;
Camera() {
visible_layers = 0xFFFFFFFF;
fov = 70;
type = PERSPECTIVE;
znear = 0.05;
zfar = 100;
size = 1.0;
offset = Vector2();
vaspect = false;
}
};
mutable RID_Owner<Camera> camera_owner;
virtual RID camera_create();
virtual void camera_set_perspective(RID p_camera, float p_fovy_degrees, float p_z_near, float p_z_far);
virtual void camera_set_orthogonal(RID p_camera, float p_size, float p_z_near, float p_z_far);
virtual void camera_set_frustum(RID p_camera, float p_size, Vector2 p_offset, float p_z_near, float p_z_far);
virtual void camera_set_transform(RID p_camera, const Transform &p_transform);
virtual void camera_set_cull_mask(RID p_camera, uint32_t p_layers);
virtual void camera_set_environment(RID p_camera, RID p_env);
virtual void camera_set_use_vertical_aspect(RID p_camera, bool p_enable);
/* SCENARIO API */
struct Instance;
// common interface for all spatial partitioning schemes
// this is a bit excessive boilerplatewise but can be removed if we decide to stick with one method
// note this is actually the BVH id +1, so that visual server can test against zero
// for validity to maintain compatibility with octree (where 0 indicates invalid)
typedef uint32_t SpatialPartitionID;
class SpatialPartitioningScene {
public:
virtual SpatialPartitionID create(Instance *p_userdata, const AABB &p_aabb = AABB(), int p_subindex = 0, bool p_pairable = false, uint32_t p_pairable_type = 0, uint32_t pairable_mask = 1) = 0;
virtual void erase(SpatialPartitionID p_handle) = 0;
virtual void move(SpatialPartitionID p_handle, const AABB &p_aabb) = 0;
virtual void activate(SpatialPartitionID p_handle, const AABB &p_aabb) {}
virtual void deactivate(SpatialPartitionID p_handle) {}
virtual void update() {}
virtual void update_collisions() {}
virtual void set_pairable(SpatialPartitionID p_handle, bool p_pairable, uint32_t p_pairable_type, uint32_t p_pairable_mask) = 0;
virtual int cull_convex(const Vector<Plane> &p_convex, Instance **p_result_array, int p_result_max, uint32_t p_mask = 0xFFFFFFFF) = 0;
virtual int cull_aabb(const AABB &p_aabb, Instance **p_result_array, int p_result_max, int *p_subindex_array = nullptr, uint32_t p_mask = 0xFFFFFFFF) = 0;
virtual int cull_segment(const Vector3 &p_from, const Vector3 &p_to, Instance **p_result_array, int p_result_max, int *p_subindex_array = nullptr, uint32_t p_mask = 0xFFFFFFFF) = 0;
typedef void *(*PairCallback)(void *, uint32_t, Instance *, int, uint32_t, Instance *, int);
typedef void (*UnpairCallback)(void *, uint32_t, Instance *, int, uint32_t, Instance *, int, void *);
virtual void set_pair_callback(PairCallback p_callback, void *p_userdata) = 0;
virtual void set_unpair_callback(UnpairCallback p_callback, void *p_userdata) = 0;
// bvh specific
virtual void params_set_node_expansion(real_t p_value) {}
virtual void params_set_pairing_expansion(real_t p_value) {}
// octree specific
virtual void set_balance(float p_balance) {}
virtual ~SpatialPartitioningScene() {}
};
class SpatialPartitioningScene_Octree : public SpatialPartitioningScene {
Octree_CL<Instance, true> _octree;
public:
SpatialPartitionID create(Instance *p_userdata, const AABB &p_aabb = AABB(), int p_subindex = 0, bool p_pairable = false, uint32_t p_pairable_type = 0, uint32_t pairable_mask = 1);
void erase(SpatialPartitionID p_handle);
void move(SpatialPartitionID p_handle, const AABB &p_aabb);
void set_pairable(SpatialPartitionID p_handle, bool p_pairable, uint32_t p_pairable_type, uint32_t p_pairable_mask);
int cull_convex(const Vector<Plane> &p_convex, Instance **p_result_array, int p_result_max, uint32_t p_mask = 0xFFFFFFFF);
int cull_aabb(const AABB &p_aabb, Instance **p_result_array, int p_result_max, int *p_subindex_array = nullptr, uint32_t p_mask = 0xFFFFFFFF);
int cull_segment(const Vector3 &p_from, const Vector3 &p_to, Instance **p_result_array, int p_result_max, int *p_subindex_array = nullptr, uint32_t p_mask = 0xFFFFFFFF);
void set_pair_callback(PairCallback p_callback, void *p_userdata);
void set_unpair_callback(UnpairCallback p_callback, void *p_userdata);
void set_balance(float p_balance);
};
class SpatialPartitioningScene_BVH : public SpatialPartitioningScene {
// Note that SpatialPartitionIDs are +1 based when stored in visual server, to enable 0 to indicate invalid ID.
BVH_Manager<Instance, true, 256> _bvh;
public:
SpatialPartitionID create(Instance *p_userdata, const AABB &p_aabb = AABB(), int p_subindex = 0, bool p_pairable = false, uint32_t p_pairable_type = 0, uint32_t p_pairable_mask = 1);
void erase(SpatialPartitionID p_handle);
void move(SpatialPartitionID p_handle, const AABB &p_aabb);
void activate(SpatialPartitionID p_handle, const AABB &p_aabb);
void deactivate(SpatialPartitionID p_handle);
void update();
void update_collisions();
void set_pairable(SpatialPartitionID p_handle, bool p_pairable, uint32_t p_pairable_type, uint32_t p_pairable_mask);
int cull_convex(const Vector<Plane> &p_convex, Instance **p_result_array, int p_result_max, uint32_t p_mask = 0xFFFFFFFF);
int cull_aabb(const AABB &p_aabb, Instance **p_result_array, int p_result_max, int *p_subindex_array = nullptr, uint32_t p_mask = 0xFFFFFFFF);
int cull_segment(const Vector3 &p_from, const Vector3 &p_to, Instance **p_result_array, int p_result_max, int *p_subindex_array = nullptr, uint32_t p_mask = 0xFFFFFFFF);
void set_pair_callback(PairCallback p_callback, void *p_userdata);
void set_unpair_callback(UnpairCallback p_callback, void *p_userdata);
void params_set_node_expansion(real_t p_value) { _bvh.params_set_node_expansion(p_value); }
void params_set_pairing_expansion(real_t p_value) { _bvh.params_set_pairing_expansion(p_value); }
};
struct Scenario : RID_Data {
VS::ScenarioDebugMode debug;
RID self;
SpatialPartitioningScene *sps;
List<Instance *> directional_lights;
RID environment;
RID fallback_environment;
RID reflection_probe_shadow_atlas;
RID reflection_atlas;
SelfList<Instance>::List instances;
Scenario();
~Scenario() { memdelete(sps); }
};
mutable RID_Owner<Scenario> scenario_owner;
static void *_instance_pair(void *p_self, SpatialPartitionID, Instance *p_A, int, SpatialPartitionID, Instance *p_B, int);
static void _instance_unpair(void *p_self, SpatialPartitionID, Instance *p_A, int, SpatialPartitionID, Instance *p_B, int, void *);
virtual RID scenario_create();
virtual void scenario_set_debug(RID p_scenario, VS::ScenarioDebugMode p_debug_mode);
virtual void scenario_set_environment(RID p_scenario, RID p_environment);
virtual void scenario_set_fallback_environment(RID p_scenario, RID p_environment);
virtual void scenario_set_reflection_atlas_size(RID p_scenario, int p_size, int p_subdiv);
/* INSTANCING API */
struct InstanceBaseData {
virtual ~InstanceBaseData() {}
};
struct Instance : RasterizerScene::InstanceBase {
RID self;
//scenario stuff
SpatialPartitionID spatial_partition_id;
Scenario *scenario;
SelfList<Instance> scenario_item;
//aabb stuff
bool update_aabb;
bool update_materials;
SelfList<Instance> update_item;
AABB aabb;
AABB transformed_aabb;
AABB *custom_aabb; // <Zylann> would using aabb directly with a bool be better?
float extra_margin;
uint32_t object_id;
float lod_begin;
float lod_end;
float lod_begin_hysteresis;
float lod_end_hysteresis;
RID lod_instance;
uint64_t last_render_pass;
uint64_t last_frame_pass;
uint64_t version; // changes to this, and changes to base increase version
InstanceBaseData *base_data;
virtual void base_removed() {
singleton->instance_set_base(self, RID());
}
virtual void base_changed(bool p_aabb, bool p_materials) {
singleton->_instance_queue_update(this, p_aabb, p_materials);
}
Instance() :
scenario_item(this),
update_item(this) {
spatial_partition_id = 0;
scenario = NULL;
update_aabb = false;
update_materials = false;
extra_margin = 0;
object_id = 0;
visible = true;
lod_begin = 0;
lod_end = 0;
lod_begin_hysteresis = 0;
lod_end_hysteresis = 0;
last_render_pass = 0;
last_frame_pass = 0;
version = 1;
base_data = NULL;
custom_aabb = NULL;
}
~Instance() {
if (base_data)
memdelete(base_data);
if (custom_aabb)
memdelete(custom_aabb);
}
};
SelfList<Instance>::List _instance_update_list;
void _instance_queue_update(Instance *p_instance, bool p_update_aabb, bool p_update_materials = false);
struct InstanceGeometryData : public InstanceBaseData {
List<Instance *> lighting;
bool lighting_dirty;
bool can_cast_shadows;
bool material_is_animated;
List<Instance *> reflection_probes;
bool reflection_dirty;
List<Instance *> gi_probes;
bool gi_probes_dirty;
List<Instance *> lightmap_captures;
InstanceGeometryData() {
lighting_dirty = false;
reflection_dirty = true;
can_cast_shadows = true;
material_is_animated = true;
gi_probes_dirty = true;
}
};
struct InstanceReflectionProbeData : public InstanceBaseData {
Instance *owner;
struct PairInfo {
List<Instance *>::Element *L; //reflection iterator in geometry
Instance *geometry;
};
List<PairInfo> geometries;
RID instance;
bool reflection_dirty;
SelfList<InstanceReflectionProbeData> update_list;
int render_step;
InstanceReflectionProbeData() :
update_list(this) {
reflection_dirty = true;
render_step = -1;
}
};
SelfList<InstanceReflectionProbeData>::List reflection_probe_render_list;
struct InstanceLightData : public InstanceBaseData {
struct PairInfo {
List<Instance *>::Element *L; //light iterator in geometry
Instance *geometry;
};
RID instance;
uint64_t last_version;
List<Instance *>::Element *D; // directional light in scenario
bool shadow_dirty;
List<PairInfo> geometries;
Instance *baked_light;
InstanceLightData() {
shadow_dirty = true;
D = NULL;
last_version = 0;
baked_light = NULL;
}
};
struct InstanceGIProbeData : public InstanceBaseData {
Instance *owner;
struct PairInfo {
List<Instance *>::Element *L; //gi probe iterator in geometry
Instance *geometry;
};
List<PairInfo> geometries;
Set<Instance *> lights;
struct LightCache {
VS::LightType type;
Transform transform;
Color color;
float energy;
float radius;
float attenuation;
float spot_angle;
float spot_attenuation;
bool visible;
bool operator==(const LightCache &p_cache) {
return (type == p_cache.type &&
transform == p_cache.transform &&
color == p_cache.color &&
energy == p_cache.energy &&
radius == p_cache.radius &&
attenuation == p_cache.attenuation &&
spot_angle == p_cache.spot_angle &&
spot_attenuation == p_cache.spot_attenuation &&
visible == p_cache.visible);
}
bool operator!=(const LightCache &p_cache) {
return !operator==(p_cache);
}
LightCache() {
type = VS::LIGHT_DIRECTIONAL;
energy = 1.0;
radius = 1.0;
attenuation = 1.0;
spot_angle = 1.0;
spot_attenuation = 1.0;
visible = true;
}
};
struct LocalData {
uint16_t pos[3];
uint16_t energy[3]; //using 0..1024 for float range 0..1. integer is needed for deterministic add/remove of lights
};
struct CompBlockS3TC {
uint32_t offset; //offset in mipmap
uint32_t source_count; //sources
uint32_t sources[16]; //id for each source
uint8_t alpha[8]; //alpha block is pre-computed
};
struct Dynamic {
Map<RID, LightCache> light_cache;
Map<RID, LightCache> light_cache_changes;
PoolVector<int> light_data;
PoolVector<LocalData> local_data;
Vector<Vector<uint32_t> > level_cell_lists;
RID probe_data;
bool enabled;
int bake_dynamic_range;
RasterizerStorage::GIProbeCompression compression;
Vector<PoolVector<uint8_t> > mipmaps_3d;
Vector<PoolVector<CompBlockS3TC> > mipmaps_s3tc; //for s3tc
int updating_stage;
float propagate;
int grid_size[3];
Transform light_to_cell_xform;
} dynamic;
RID probe_instance;
bool invalid;
uint32_t base_version;
SelfList<InstanceGIProbeData> update_element;
InstanceGIProbeData() :
update_element(this) {
invalid = true;
base_version = 0;
dynamic.updating_stage = GI_UPDATE_STAGE_CHECK;
}
};
SelfList<InstanceGIProbeData>::List gi_probe_update_list;
struct InstanceLightmapCaptureData : public InstanceBaseData {
struct PairInfo {
List<Instance *>::Element *L; //iterator in geometry
Instance *geometry;
};
List<PairInfo> geometries;
Set<Instance *> users;
InstanceLightmapCaptureData() {
}
};
int instance_cull_count;
Instance *instance_cull_result[MAX_INSTANCE_CULL];
Instance *instance_shadow_cull_result[MAX_INSTANCE_CULL]; //used for generating shadowmaps
Instance *light_cull_result[MAX_LIGHTS_CULLED];
RID light_instance_cull_result[MAX_LIGHTS_CULLED];
int light_cull_count;
int directional_light_count;
RID reflection_probe_instance_cull_result[MAX_REFLECTION_PROBES_CULLED];
int reflection_probe_cull_count;
RID_Owner<Instance> instance_owner;
virtual RID instance_create();
virtual void instance_set_base(RID p_instance, RID p_base);
virtual void instance_set_scenario(RID p_instance, RID p_scenario);
virtual void instance_set_layer_mask(RID p_instance, uint32_t p_mask);
virtual void instance_set_transform(RID p_instance, const Transform &p_transform);
virtual void instance_attach_object_instance_id(RID p_instance, ObjectID p_id);
virtual void instance_set_blend_shape_weight(RID p_instance, int p_shape, float p_weight);
virtual void instance_set_surface_material(RID p_instance, int p_surface, RID p_material);
virtual void instance_set_visible(RID p_instance, bool p_visible);
virtual void instance_set_use_lightmap(RID p_instance, RID p_lightmap_instance, RID p_lightmap, int p_lightmap_slice, const Rect2 &p_lightmap_uv_rect);
virtual void instance_set_custom_aabb(RID p_instance, AABB p_aabb);
virtual void instance_attach_skeleton(RID p_instance, RID p_skeleton);
virtual void instance_set_exterior(RID p_instance, bool p_enabled);
virtual void instance_set_extra_visibility_margin(RID p_instance, real_t p_margin);
// don't use these in a game!
virtual Vector<ObjectID> instances_cull_aabb(const AABB &p_aabb, RID p_scenario = RID()) const;
virtual Vector<ObjectID> instances_cull_ray(const Vector3 &p_from, const Vector3 &p_to, RID p_scenario = RID()) const;
virtual Vector<ObjectID> instances_cull_convex(const Vector<Plane> &p_convex, RID p_scenario = RID()) const;
virtual void instance_geometry_set_flag(RID p_instance, VS::InstanceFlags p_flags, bool p_enabled);
virtual void instance_geometry_set_cast_shadows_setting(RID p_instance, VS::ShadowCastingSetting p_shadow_casting_setting);
virtual void instance_geometry_set_material_override(RID p_instance, RID p_material);
virtual void instance_geometry_set_draw_range(RID p_instance, float p_min, float p_max, float p_min_margin, float p_max_margin);
virtual void instance_geometry_set_as_instance_lod(RID p_instance, RID p_as_lod_of_instance);
_FORCE_INLINE_ void _update_instance(Instance *p_instance);
_FORCE_INLINE_ void _update_instance_aabb(Instance *p_instance);
_FORCE_INLINE_ void _update_dirty_instance(Instance *p_instance);
_FORCE_INLINE_ void _update_instance_lightmap_captures(Instance *p_instance);
_FORCE_INLINE_ bool _light_instance_update_shadow(Instance *p_instance, const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, RID p_shadow_atlas, Scenario *p_scenario);
void _prepare_scene(const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, RID p_force_environment, uint32_t p_visible_layers, RID p_scenario, RID p_shadow_atlas, RID p_reflection_probe);
void _render_scene(const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, RID p_force_environment, RID p_scenario, RID p_shadow_atlas, RID p_reflection_probe, int p_reflection_probe_pass);
void render_empty_scene(RID p_scenario, RID p_shadow_atlas);
void render_camera(RID p_camera, RID p_scenario, Size2 p_viewport_size, RID p_shadow_atlas);
void render_camera(Ref<ARVRInterface> &p_interface, ARVRInterface::Eyes p_eye, RID p_camera, RID p_scenario, Size2 p_viewport_size, RID p_shadow_atlas);
void update_dirty_instances();
//probes
struct GIProbeDataHeader {
uint32_t version;
uint32_t cell_subdiv;
uint32_t width;
uint32_t height;
uint32_t depth;
uint32_t cell_count;
uint32_t leaf_cell_count;
};
struct GIProbeDataCell {
uint32_t children[8];
uint32_t albedo;
uint32_t emission;
uint32_t normal;
uint32_t level_alpha;
};
enum {
GI_UPDATE_STAGE_CHECK,
GI_UPDATE_STAGE_LIGHTING,
GI_UPDATE_STAGE_UPLOADING,
};
void _gi_probe_bake_thread();
static void _gi_probe_bake_threads(void *);
volatile bool probe_bake_thread_exit;
Thread *probe_bake_thread;
Semaphore *probe_bake_sem;
Mutex *probe_bake_mutex;
List<Instance *> probe_bake_list;
bool _render_reflection_probe_step(Instance *p_instance, int p_step);
void _gi_probe_fill_local_data(int p_idx, int p_level, int p_x, int p_y, int p_z, const GIProbeDataCell *p_cell, const GIProbeDataHeader *p_header, InstanceGIProbeData::LocalData *p_local_data, Vector<uint32_t> *prev_cell);
_FORCE_INLINE_ uint32_t _gi_bake_find_cell(const GIProbeDataCell *cells, int x, int y, int z, int p_cell_subdiv);
void _bake_gi_downscale_light(int p_idx, int p_level, const GIProbeDataCell *p_cells, const GIProbeDataHeader *p_header, InstanceGIProbeData::LocalData *p_local_data, float p_propagate);
void _bake_gi_probe_light(const GIProbeDataHeader *header, const GIProbeDataCell *cells, InstanceGIProbeData::LocalData *local_data, const uint32_t *leaves, int p_leaf_count, const InstanceGIProbeData::LightCache &light_cache, int p_sign);
void _bake_gi_probe(Instance *p_gi_probe);
bool _check_gi_probe(Instance *p_gi_probe);
void _setup_gi_probe(Instance *p_instance);
void render_probes();
bool free(RID p_rid);
VisualServerScene();
virtual ~VisualServerScene();
};
#endif // VISUALSERVERSCENE_H
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