/*************************************************************************/
/*  renderer_storage_rd.h                                                */
/*************************************************************************/
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#ifndef RENDERING_SERVER_STORAGE_RD_H
#define RENDERING_SERVER_STORAGE_RD_H

#include "core/templates/list.h"
#include "core/templates/local_vector.h"
#include "core/templates/rid_owner.h"
#include "servers/rendering/renderer_compositor.h"
#include "servers/rendering/renderer_rd/effects_rd.h"
#include "servers/rendering/renderer_rd/shaders/canvas_sdf.glsl.gen.h"
#include "servers/rendering/renderer_rd/shaders/particles.glsl.gen.h"
#include "servers/rendering/renderer_rd/shaders/particles_copy.glsl.gen.h"
#include "servers/rendering/renderer_rd/shaders/voxel_gi_sdf.glsl.gen.h"
#include "servers/rendering/renderer_rd/storage_rd/material_storage.h"
#include "servers/rendering/renderer_scene_render.h"
#include "servers/rendering/rendering_device.h"
#include "servers/rendering/shader_compiler.h"

class RendererStorageRD : public RendererStorage {
public:
	static _FORCE_INLINE_ void store_transform(const Transform3D &p_mtx, float *p_array) {
		p_array[0] = p_mtx.basis.elements[0][0];
		p_array[1] = p_mtx.basis.elements[1][0];
		p_array[2] = p_mtx.basis.elements[2][0];
		p_array[3] = 0;
		p_array[4] = p_mtx.basis.elements[0][1];
		p_array[5] = p_mtx.basis.elements[1][1];
		p_array[6] = p_mtx.basis.elements[2][1];
		p_array[7] = 0;
		p_array[8] = p_mtx.basis.elements[0][2];
		p_array[9] = p_mtx.basis.elements[1][2];
		p_array[10] = p_mtx.basis.elements[2][2];
		p_array[11] = 0;
		p_array[12] = p_mtx.origin.x;
		p_array[13] = p_mtx.origin.y;
		p_array[14] = p_mtx.origin.z;
		p_array[15] = 1;
	}

	static _FORCE_INLINE_ void store_basis_3x4(const Basis &p_mtx, float *p_array) {
		p_array[0] = p_mtx.elements[0][0];
		p_array[1] = p_mtx.elements[1][0];
		p_array[2] = p_mtx.elements[2][0];
		p_array[3] = 0;
		p_array[4] = p_mtx.elements[0][1];
		p_array[5] = p_mtx.elements[1][1];
		p_array[6] = p_mtx.elements[2][1];
		p_array[7] = 0;
		p_array[8] = p_mtx.elements[0][2];
		p_array[9] = p_mtx.elements[1][2];
		p_array[10] = p_mtx.elements[2][2];
		p_array[11] = 0;
	}

	static _FORCE_INLINE_ void store_transform_3x3(const Basis &p_mtx, float *p_array) {
		p_array[0] = p_mtx.elements[0][0];
		p_array[1] = p_mtx.elements[1][0];
		p_array[2] = p_mtx.elements[2][0];
		p_array[3] = 0;
		p_array[4] = p_mtx.elements[0][1];
		p_array[5] = p_mtx.elements[1][1];
		p_array[6] = p_mtx.elements[2][1];
		p_array[7] = 0;
		p_array[8] = p_mtx.elements[0][2];
		p_array[9] = p_mtx.elements[1][2];
		p_array[10] = p_mtx.elements[2][2];
		p_array[11] = 0;
	}

	static _FORCE_INLINE_ void store_transform_transposed_3x4(const Transform3D &p_mtx, float *p_array) {
		p_array[0] = p_mtx.basis.elements[0][0];
		p_array[1] = p_mtx.basis.elements[0][1];
		p_array[2] = p_mtx.basis.elements[0][2];
		p_array[3] = p_mtx.origin.x;
		p_array[4] = p_mtx.basis.elements[1][0];
		p_array[5] = p_mtx.basis.elements[1][1];
		p_array[6] = p_mtx.basis.elements[1][2];
		p_array[7] = p_mtx.origin.y;
		p_array[8] = p_mtx.basis.elements[2][0];
		p_array[9] = p_mtx.basis.elements[2][1];
		p_array[10] = p_mtx.basis.elements[2][2];
		p_array[11] = p_mtx.origin.z;
	}

	static _FORCE_INLINE_ void store_camera(const CameraMatrix &p_mtx, float *p_array) {
		for (int i = 0; i < 4; i++) {
			for (int j = 0; j < 4; j++) {
				p_array[i * 4 + j] = p_mtx.matrix[i][j];
			}
		}
	}

	static _FORCE_INLINE_ void store_soft_shadow_kernel(const float *p_kernel, float *p_array) {
		for (int i = 0; i < 128; i++) {
			p_array[i] = p_kernel[i];
		}
	}

private:
	/* TEXTURE API */

	RID default_rd_samplers[RS::CANVAS_ITEM_TEXTURE_FILTER_MAX][RS::CANVAS_ITEM_TEXTURE_REPEAT_MAX];
	RID custom_rd_samplers[RS::CANVAS_ITEM_TEXTURE_FILTER_MAX][RS::CANVAS_ITEM_TEXTURE_REPEAT_MAX];

	/* PARTICLES */

	struct ParticleData {
		float xform[16];
		float velocity[3];
		uint32_t active;
		float color[4];
		float custom[3];
		float lifetime;
	};

	struct ParticlesFrameParams {
		enum {
			MAX_ATTRACTORS = 32,
			MAX_COLLIDERS = 32,
			MAX_3D_TEXTURES = 7
		};

		enum AttractorType {
			ATTRACTOR_TYPE_SPHERE,
			ATTRACTOR_TYPE_BOX,
			ATTRACTOR_TYPE_VECTOR_FIELD,
		};

		struct Attractor {
			float transform[16];
			float extents[3]; //exents or radius
			uint32_t type;

			uint32_t texture_index; //texture index for vector field
			float strength;
			float attenuation;
			float directionality;
		};

		enum CollisionType {
			COLLISION_TYPE_SPHERE,
			COLLISION_TYPE_BOX,
			COLLISION_TYPE_SDF,
			COLLISION_TYPE_HEIGHT_FIELD,
			COLLISION_TYPE_2D_SDF,

		};

		struct Collider {
			float transform[16];
			float extents[3]; //exents or radius
			uint32_t type;

			uint32_t texture_index; //texture index for vector field
			real_t scale;
			uint32_t pad[2];
		};

		uint32_t emitting;
		float system_phase;
		float prev_system_phase;
		uint32_t cycle;

		real_t explosiveness;
		real_t randomness;
		float time;
		float delta;

		uint32_t frame;
		uint32_t pad0;
		uint32_t pad1;
		uint32_t pad2;

		uint32_t random_seed;
		uint32_t attractor_count;
		uint32_t collider_count;
		float particle_size;

		float emission_transform[16];

		Attractor attractors[MAX_ATTRACTORS];
		Collider colliders[MAX_COLLIDERS];
	};

	struct ParticleEmissionBufferData {
	};

	struct ParticleEmissionBuffer {
		struct Data {
			float xform[16];
			float velocity[3];
			uint32_t flags;
			float color[4];
			float custom[4];
		};

		int32_t particle_count;
		int32_t particle_max;
		uint32_t pad1;
		uint32_t pad2;
		Data data[1]; //its 2020 and empty arrays are still non standard in C++
	};

	struct Particles {
		RS::ParticlesMode mode = RS::PARTICLES_MODE_3D;
		bool inactive = true;
		double inactive_time = 0.0;
		bool emitting = false;
		bool one_shot = false;
		int amount = 0;
		double lifetime = 1.0;
		double pre_process_time = 0.0;
		real_t explosiveness = 0.0;
		real_t randomness = 0.0;
		bool restart_request = false;
		AABB custom_aabb = AABB(Vector3(-4, -4, -4), Vector3(8, 8, 8));
		bool use_local_coords = true;
		bool has_collision_cache = false;

		bool has_sdf_collision = false;
		Transform2D sdf_collision_transform;
		Rect2 sdf_collision_to_screen;
		RID sdf_collision_texture;

		RID process_material;
		uint32_t frame_counter = 0;
		RS::ParticlesTransformAlign transform_align = RS::PARTICLES_TRANSFORM_ALIGN_DISABLED;

		RS::ParticlesDrawOrder draw_order = RS::PARTICLES_DRAW_ORDER_INDEX;

		Vector<RID> draw_passes;
		Vector<Transform3D> trail_bind_poses;
		bool trail_bind_poses_dirty = false;
		RID trail_bind_pose_buffer;
		RID trail_bind_pose_uniform_set;

		RID particle_buffer;
		RID particle_instance_buffer;
		RID frame_params_buffer;

		uint32_t userdata_count = 0;

		RID particles_material_uniform_set;
		RID particles_copy_uniform_set;
		RID particles_transforms_buffer_uniform_set;
		RID collision_textures_uniform_set;

		RID collision_3d_textures[ParticlesFrameParams::MAX_3D_TEXTURES];
		uint32_t collision_3d_textures_used = 0;
		RID collision_heightmap_texture;

		RID particles_sort_buffer;
		RID particles_sort_uniform_set;

		bool dirty = false;
		Particles *update_list = nullptr;

		RID sub_emitter;

		double phase = 0.0;
		double prev_phase = 0.0;
		uint64_t prev_ticks = 0;
		uint32_t random_seed = 0;

		uint32_t cycle_number = 0;

		double speed_scale = 1.0;

		int fixed_fps = 30;
		bool interpolate = true;
		bool fractional_delta = false;
		double frame_remainder = 0;
		real_t collision_base_size = 0.01;

		bool clear = true;

		bool force_sub_emit = false;

		Transform3D emission_transform;

		Vector<uint8_t> emission_buffer_data;

		ParticleEmissionBuffer *emission_buffer = nullptr;
		RID emission_storage_buffer;

		Set<RID> collisions;

		Dependency dependency;

		double trail_length = 1.0;
		bool trails_enabled = false;
		LocalVector<ParticlesFrameParams> frame_history;
		LocalVector<ParticlesFrameParams> trail_params;

		Particles() {
		}
	};

	void _particles_process(Particles *p_particles, double p_delta);
	void _particles_allocate_emission_buffer(Particles *particles);
	void _particles_free_data(Particles *particles);
	void _particles_update_buffers(Particles *particles);

	struct ParticlesShader {
		struct PushConstant {
			float lifetime;
			uint32_t clear;
			uint32_t total_particles;
			uint32_t trail_size;

			uint32_t use_fractional_delta;
			uint32_t sub_emitter_mode;
			uint32_t can_emit;
			uint32_t trail_pass;
		};

		ParticlesShaderRD shader;
		ShaderCompiler compiler;

		RID default_shader;
		RID default_material;
		RID default_shader_rd;

		RID base_uniform_set;

		struct CopyPushConstant {
			float sort_direction[3];
			uint32_t total_particles;

			uint32_t trail_size;
			uint32_t trail_total;
			float frame_delta;
			float frame_remainder;

			float align_up[3];
			uint32_t align_mode;

			uint32_t order_by_lifetime;
			uint32_t lifetime_split;
			uint32_t lifetime_reverse;
			uint32_t copy_mode_2d;

			float inv_emission_transform[16];
		};

		enum {
			MAX_USERDATAS = 6
		};
		enum {
			COPY_MODE_FILL_INSTANCES,
			COPY_MODE_FILL_SORT_BUFFER,
			COPY_MODE_FILL_INSTANCES_WITH_SORT_BUFFER,
			COPY_MODE_MAX,
		};

		ParticlesCopyShaderRD copy_shader;
		RID copy_shader_version;
		RID copy_pipelines[COPY_MODE_MAX * (MAX_USERDATAS + 1)];

		LocalVector<float> pose_update_buffer;

	} particles_shader;

	Particles *particle_update_list = nullptr;

	struct ParticlesShaderData : public RendererRD::ShaderData {
		bool valid;
		RID version;
		bool uses_collision = false;

		//PipelineCacheRD pipelines[SKY_VERSION_MAX];
		Map<StringName, ShaderLanguage::ShaderNode::Uniform> uniforms;
		Vector<ShaderCompiler::GeneratedCode::Texture> texture_uniforms;

		Vector<uint32_t> ubo_offsets;
		uint32_t ubo_size;

		String path;
		String code;
		Map<StringName, Map<int, RID>> default_texture_params;

		RID pipeline;

		bool uses_time = false;

		bool userdatas_used[ParticlesShader::MAX_USERDATAS] = {};
		uint32_t userdata_count = 0;

		virtual void set_code(const String &p_Code);
		virtual void set_default_texture_param(const StringName &p_name, RID p_texture, int p_index);
		virtual void get_param_list(List<PropertyInfo> *p_param_list) const;
		virtual void get_instance_param_list(List<RendererMaterialStorage::InstanceShaderParam> *p_param_list) const;
		virtual bool is_param_texture(const StringName &p_param) const;
		virtual bool is_animated() const;
		virtual bool casts_shadows() const;
		virtual Variant get_default_parameter(const StringName &p_parameter) const;
		virtual RS::ShaderNativeSourceCode get_native_source_code() const;

		ParticlesShaderData();
		virtual ~ParticlesShaderData();
	};

	RendererRD::ShaderData *_create_particles_shader_func();
	static RendererRD::ShaderData *_create_particles_shader_funcs() {
		return base_singleton->_create_particles_shader_func();
	}

	struct ParticlesMaterialData : public RendererRD::MaterialData {
		ParticlesShaderData *shader_data = nullptr;
		RID uniform_set;

		virtual void set_render_priority(int p_priority) {}
		virtual void set_next_pass(RID p_pass) {}
		virtual bool update_parameters(const Map<StringName, Variant> &p_parameters, bool p_uniform_dirty, bool p_textures_dirty);
		virtual ~ParticlesMaterialData();
	};

	RendererRD::MaterialData *_create_particles_material_func(ParticlesShaderData *p_shader);
	static RendererRD::MaterialData *_create_particles_material_funcs(RendererRD::ShaderData *p_shader) {
		return base_singleton->_create_particles_material_func(static_cast<ParticlesShaderData *>(p_shader));
	}

	void update_particles();

	mutable RID_Owner<Particles, true> particles_owner;

	/* Particles Collision */

	struct ParticlesCollision {
		RS::ParticlesCollisionType type = RS::PARTICLES_COLLISION_TYPE_SPHERE_ATTRACT;
		uint32_t cull_mask = 0xFFFFFFFF;
		float radius = 1.0;
		Vector3 extents = Vector3(1, 1, 1);
		float attractor_strength = 1.0;
		float attractor_attenuation = 1.0;
		float attractor_directionality = 0.0;
		RID field_texture;
		RID heightfield_texture;
		RID heightfield_fb;
		Size2i heightfield_fb_size;

		RS::ParticlesCollisionHeightfieldResolution heightfield_resolution = RS::PARTICLES_COLLISION_HEIGHTFIELD_RESOLUTION_1024;

		Dependency dependency;
	};

	mutable RID_Owner<ParticlesCollision, true> particles_collision_owner;

	struct ParticlesCollisionInstance {
		RID collision;
		Transform3D transform;
		bool active = false;
	};

	mutable RID_Owner<ParticlesCollisionInstance> particles_collision_instance_owner;

	/* FOG VOLUMES */

	struct FogVolume {
		RID material;
		Vector3 extents = Vector3(1, 1, 1);

		RS::FogVolumeShape shape = RS::FOG_VOLUME_SHAPE_BOX;

		Dependency dependency;
	};

	mutable RID_Owner<FogVolume, true> fog_volume_owner;

	/* visibility_notifier */

	struct VisibilityNotifier {
		AABB aabb;
		Callable enter_callback;
		Callable exit_callback;
		Dependency dependency;
	};

	mutable RID_Owner<VisibilityNotifier> visibility_notifier_owner;

	/* LIGHT */

	struct Light {
		RS::LightType type;
		float param[RS::LIGHT_PARAM_MAX];
		Color color = Color(1, 1, 1, 1);
		RID projector;
		bool shadow = false;
		bool negative = false;
		bool reverse_cull = false;
		RS::LightBakeMode bake_mode = RS::LIGHT_BAKE_DYNAMIC;
		uint32_t max_sdfgi_cascade = 2;
		uint32_t cull_mask = 0xFFFFFFFF;
		bool distance_fade = false;
		real_t distance_fade_begin = 40.0;
		real_t distance_fade_shadow = 50.0;
		real_t distance_fade_length = 10.0;
		RS::LightOmniShadowMode omni_shadow_mode = RS::LIGHT_OMNI_SHADOW_DUAL_PARABOLOID;
		RS::LightDirectionalShadowMode directional_shadow_mode = RS::LIGHT_DIRECTIONAL_SHADOW_ORTHOGONAL;
		bool directional_blend_splits = false;
		RS::LightDirectionalSkyMode directional_sky_mode = RS::LIGHT_DIRECTIONAL_SKY_MODE_LIGHT_AND_SKY;
		uint64_t version = 0;

		Dependency dependency;
	};

	mutable RID_Owner<Light, true> light_owner;

	/* REFLECTION PROBE */

	struct ReflectionProbe {
		RS::ReflectionProbeUpdateMode update_mode = RS::REFLECTION_PROBE_UPDATE_ONCE;
		int resolution = 256;
		float intensity = 1.0;
		RS::ReflectionProbeAmbientMode ambient_mode = RS::REFLECTION_PROBE_AMBIENT_ENVIRONMENT;
		Color ambient_color;
		float ambient_color_energy = 1.0;
		float max_distance = 0;
		Vector3 extents = Vector3(1, 1, 1);
		Vector3 origin_offset;
		bool interior = false;
		bool box_projection = false;
		bool enable_shadows = false;
		uint32_t cull_mask = (1 << 20) - 1;
		float mesh_lod_threshold = 0.01;

		Dependency dependency;
	};

	mutable RID_Owner<ReflectionProbe, true> reflection_probe_owner;

	/* VOXEL GI */

	struct VoxelGI {
		RID octree_buffer;
		RID data_buffer;
		RID sdf_texture;

		uint32_t octree_buffer_size = 0;
		uint32_t data_buffer_size = 0;

		Vector<int> level_counts;

		int cell_count = 0;

		Transform3D to_cell_xform;
		AABB bounds;
		Vector3i octree_size;

		float dynamic_range = 2.0;
		float energy = 1.0;
		float bias = 1.4;
		float normal_bias = 0.0;
		float propagation = 0.7;
		bool interior = false;
		bool use_two_bounces = false;

		float anisotropy_strength = 0.5;

		uint32_t version = 1;
		uint32_t data_version = 1;

		Dependency dependency;
	};

	mutable RID_Owner<VoxelGI, true> voxel_gi_owner;

	/* REFLECTION PROBE */

	struct Lightmap {
		RID light_texture;
		bool uses_spherical_harmonics = false;
		bool interior = false;
		AABB bounds = AABB(Vector3(), Vector3(1, 1, 1));
		int32_t array_index = -1; //unassigned
		PackedVector3Array points;
		PackedColorArray point_sh;
		PackedInt32Array tetrahedra;
		PackedInt32Array bsp_tree;

		struct BSP {
			static const int32_t EMPTY_LEAF = INT32_MIN;
			float plane[4];
			int32_t over = EMPTY_LEAF, under = EMPTY_LEAF;
		};

		Dependency dependency;
	};

	bool using_lightmap_array; //high end uses this
	/* for high end */

	Vector<RID> lightmap_textures;

	uint64_t lightmap_array_version = 0;

	mutable RID_Owner<Lightmap, true> lightmap_owner;

	float lightmap_probe_capture_update_speed = 4;

	/* RENDER TARGET */

	struct RenderTarget {
		Size2i size;
		uint32_t view_count;
		RID framebuffer;
		RID color;

		//used for retrieving from CPU
		RD::DataFormat color_format = RD::DATA_FORMAT_R4G4_UNORM_PACK8;
		RD::DataFormat color_format_srgb = RD::DATA_FORMAT_R4G4_UNORM_PACK8;
		Image::Format image_format = Image::FORMAT_L8;

		bool flags[RENDER_TARGET_FLAG_MAX];

		bool sdf_enabled = false;

		RID backbuffer; //used for effects
		RID backbuffer_fb;
		RID backbuffer_mipmap0;

		Vector<RID> backbuffer_mipmaps;

		RID framebuffer_uniform_set;
		RID backbuffer_uniform_set;

		RID sdf_buffer_write;
		RID sdf_buffer_write_fb;
		RID sdf_buffer_process[2];
		RID sdf_buffer_read;
		RID sdf_buffer_process_uniform_sets[2];
		RS::ViewportSDFOversize sdf_oversize = RS::VIEWPORT_SDF_OVERSIZE_120_PERCENT;
		RS::ViewportSDFScale sdf_scale = RS::VIEWPORT_SDF_SCALE_50_PERCENT;
		Size2i process_size;

		//texture generated for this owner (nor RD).
		RID texture;
		bool was_used;

		//clear request
		bool clear_requested;
		Color clear_color;
	};

	mutable RID_Owner<RenderTarget> render_target_owner;

	void _clear_render_target(RenderTarget *rt);
	void _update_render_target(RenderTarget *rt);
	void _create_render_target_backbuffer(RenderTarget *rt);
	void _render_target_allocate_sdf(RenderTarget *rt);
	void _render_target_clear_sdf(RenderTarget *rt);
	Rect2i _render_target_get_sdf_rect(const RenderTarget *rt) const;

	struct RenderTargetSDF {
		enum {
			SHADER_LOAD,
			SHADER_LOAD_SHRINK,
			SHADER_PROCESS,
			SHADER_PROCESS_OPTIMIZED,
			SHADER_STORE,
			SHADER_STORE_SHRINK,
			SHADER_MAX
		};

		struct PushConstant {
			int32_t size[2];
			int32_t stride;
			int32_t shift;
			int32_t base_size[2];
			int32_t pad[2];
		};

		CanvasSdfShaderRD shader;
		RID shader_version;
		RID pipelines[SHADER_MAX];
	} rt_sdf;

	/* EFFECTS */

	EffectsRD *effects = nullptr;

public:
	//internal usage

	_FORCE_INLINE_ RID sampler_rd_get_default(RS::CanvasItemTextureFilter p_filter, RS::CanvasItemTextureRepeat p_repeat) {
		return default_rd_samplers[p_filter][p_repeat];
	}
	_FORCE_INLINE_ RID sampler_rd_get_custom(RS::CanvasItemTextureFilter p_filter, RS::CanvasItemTextureRepeat p_repeat) {
		return custom_rd_samplers[p_filter][p_repeat];
	}

	void sampler_rd_configure_custom(float mipmap_bias);

	void sampler_rd_set_default(float p_mipmap_bias);

	/* Light API */

	void _light_initialize(RID p_rid, RS::LightType p_type);

	RID directional_light_allocate();
	void directional_light_initialize(RID p_light);

	RID omni_light_allocate();
	void omni_light_initialize(RID p_light);

	RID spot_light_allocate();
	void spot_light_initialize(RID p_light);

	void light_set_color(RID p_light, const Color &p_color);
	void light_set_param(RID p_light, RS::LightParam p_param, float p_value);
	void light_set_shadow(RID p_light, bool p_enabled);
	void light_set_projector(RID p_light, RID p_texture);
	void light_set_negative(RID p_light, bool p_enable);
	void light_set_cull_mask(RID p_light, uint32_t p_mask);
	void light_set_distance_fade(RID p_light, bool p_enabled, float p_begin, float p_shadow, float p_length);
	void light_set_reverse_cull_face_mode(RID p_light, bool p_enabled);
	void light_set_bake_mode(RID p_light, RS::LightBakeMode p_bake_mode);
	void light_set_max_sdfgi_cascade(RID p_light, uint32_t p_cascade);

	void light_omni_set_shadow_mode(RID p_light, RS::LightOmniShadowMode p_mode);

	void light_directional_set_shadow_mode(RID p_light, RS::LightDirectionalShadowMode p_mode);
	void light_directional_set_blend_splits(RID p_light, bool p_enable);
	bool light_directional_get_blend_splits(RID p_light) const;
	void light_directional_set_sky_mode(RID p_light, RS::LightDirectionalSkyMode p_mode);
	RS::LightDirectionalSkyMode light_directional_get_sky_mode(RID p_light) const;

	RS::LightDirectionalShadowMode light_directional_get_shadow_mode(RID p_light);
	RS::LightOmniShadowMode light_omni_get_shadow_mode(RID p_light);

	_FORCE_INLINE_ RS::LightType light_get_type(RID p_light) const {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, RS::LIGHT_DIRECTIONAL);

		return light->type;
	}
	AABB light_get_aabb(RID p_light) const;

	_FORCE_INLINE_ float light_get_param(RID p_light, RS::LightParam p_param) {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, 0);

		return light->param[p_param];
	}

	_FORCE_INLINE_ RID light_get_projector(RID p_light) {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, RID());

		return light->projector;
	}

	_FORCE_INLINE_ Color light_get_color(RID p_light) {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, Color());

		return light->color;
	}

	_FORCE_INLINE_ uint32_t light_get_cull_mask(RID p_light) {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, 0);

		return light->cull_mask;
	}

	_FORCE_INLINE_ bool light_is_distance_fade_enabled(RID p_light) {
		const Light *light = light_owner.get_or_null(p_light);
		return light->distance_fade;
	}

	_FORCE_INLINE_ float light_get_distance_fade_begin(RID p_light) {
		const Light *light = light_owner.get_or_null(p_light);
		return light->distance_fade_begin;
	}

	_FORCE_INLINE_ float light_get_distance_fade_shadow(RID p_light) {
		const Light *light = light_owner.get_or_null(p_light);
		return light->distance_fade_shadow;
	}

	_FORCE_INLINE_ float light_get_distance_fade_length(RID p_light) {
		const Light *light = light_owner.get_or_null(p_light);
		return light->distance_fade_length;
	}

	_FORCE_INLINE_ bool light_has_shadow(RID p_light) const {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, RS::LIGHT_DIRECTIONAL);

		return light->shadow;
	}

	_FORCE_INLINE_ bool light_has_projector(RID p_light) const {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, RS::LIGHT_DIRECTIONAL);

		return light_owner.owns(light->projector);
	}

	_FORCE_INLINE_ bool light_is_negative(RID p_light) const {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, RS::LIGHT_DIRECTIONAL);

		return light->negative;
	}

	_FORCE_INLINE_ float light_get_transmittance_bias(RID p_light) const {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, 0.0);

		return light->param[RS::LIGHT_PARAM_TRANSMITTANCE_BIAS];
	}

	_FORCE_INLINE_ float light_get_shadow_volumetric_fog_fade(RID p_light) const {
		const Light *light = light_owner.get_or_null(p_light);
		ERR_FAIL_COND_V(!light, 0.0);

		return light->param[RS::LIGHT_PARAM_SHADOW_VOLUMETRIC_FOG_FADE];
	}

	RS::LightBakeMode light_get_bake_mode(RID p_light);
	uint32_t light_get_max_sdfgi_cascade(RID p_light);
	uint64_t light_get_version(RID p_light) const;

	/* PROBE API */

	RID reflection_probe_allocate();
	void reflection_probe_initialize(RID p_reflection_probe);

	void reflection_probe_set_update_mode(RID p_probe, RS::ReflectionProbeUpdateMode p_mode);
	void reflection_probe_set_intensity(RID p_probe, float p_intensity);
	void reflection_probe_set_ambient_mode(RID p_probe, RS::ReflectionProbeAmbientMode p_mode);
	void reflection_probe_set_ambient_color(RID p_probe, const Color &p_color);
	void reflection_probe_set_ambient_energy(RID p_probe, float p_energy);
	void reflection_probe_set_max_distance(RID p_probe, float p_distance);
	void reflection_probe_set_extents(RID p_probe, const Vector3 &p_extents);
	void reflection_probe_set_origin_offset(RID p_probe, const Vector3 &p_offset);
	void reflection_probe_set_as_interior(RID p_probe, bool p_enable);
	void reflection_probe_set_enable_box_projection(RID p_probe, bool p_enable);
	void reflection_probe_set_enable_shadows(RID p_probe, bool p_enable);
	void reflection_probe_set_cull_mask(RID p_probe, uint32_t p_layers);
	void reflection_probe_set_resolution(RID p_probe, int p_resolution);
	void reflection_probe_set_mesh_lod_threshold(RID p_probe, float p_ratio);

	AABB reflection_probe_get_aabb(RID p_probe) const;
	RS::ReflectionProbeUpdateMode reflection_probe_get_update_mode(RID p_probe) const;
	uint32_t reflection_probe_get_cull_mask(RID p_probe) const;
	Vector3 reflection_probe_get_extents(RID p_probe) const;
	Vector3 reflection_probe_get_origin_offset(RID p_probe) const;
	float reflection_probe_get_origin_max_distance(RID p_probe) const;
	float reflection_probe_get_mesh_lod_threshold(RID p_probe) const;

	int reflection_probe_get_resolution(RID p_probe) const;
	bool reflection_probe_renders_shadows(RID p_probe) const;

	float reflection_probe_get_intensity(RID p_probe) const;
	bool reflection_probe_is_interior(RID p_probe) const;
	bool reflection_probe_is_box_projection(RID p_probe) const;
	RS::ReflectionProbeAmbientMode reflection_probe_get_ambient_mode(RID p_probe) const;
	Color reflection_probe_get_ambient_color(RID p_probe) const;
	float reflection_probe_get_ambient_color_energy(RID p_probe) const;

	void base_update_dependency(RID p_base, DependencyTracker *p_instance);

	/* VOXEL GI API */

	RID voxel_gi_allocate();
	void voxel_gi_initialize(RID p_voxel_gi);

	void voxel_gi_allocate_data(RID p_voxel_gi, const Transform3D &p_to_cell_xform, const AABB &p_aabb, const Vector3i &p_octree_size, const Vector<uint8_t> &p_octree_cells, const Vector<uint8_t> &p_data_cells, const Vector<uint8_t> &p_distance_field, const Vector<int> &p_level_counts);

	AABB voxel_gi_get_bounds(RID p_voxel_gi) const;
	Vector3i voxel_gi_get_octree_size(RID p_voxel_gi) const;
	Vector<uint8_t> voxel_gi_get_octree_cells(RID p_voxel_gi) const;
	Vector<uint8_t> voxel_gi_get_data_cells(RID p_voxel_gi) const;
	Vector<uint8_t> voxel_gi_get_distance_field(RID p_voxel_gi) const;

	Vector<int> voxel_gi_get_level_counts(RID p_voxel_gi) const;
	Transform3D voxel_gi_get_to_cell_xform(RID p_voxel_gi) const;

	void voxel_gi_set_dynamic_range(RID p_voxel_gi, float p_range);
	float voxel_gi_get_dynamic_range(RID p_voxel_gi) const;

	void voxel_gi_set_propagation(RID p_voxel_gi, float p_range);
	float voxel_gi_get_propagation(RID p_voxel_gi) const;

	void voxel_gi_set_energy(RID p_voxel_gi, float p_energy);
	float voxel_gi_get_energy(RID p_voxel_gi) const;

	void voxel_gi_set_bias(RID p_voxel_gi, float p_bias);
	float voxel_gi_get_bias(RID p_voxel_gi) const;

	void voxel_gi_set_normal_bias(RID p_voxel_gi, float p_range);
	float voxel_gi_get_normal_bias(RID p_voxel_gi) const;

	void voxel_gi_set_interior(RID p_voxel_gi, bool p_enable);
	bool voxel_gi_is_interior(RID p_voxel_gi) const;

	void voxel_gi_set_use_two_bounces(RID p_voxel_gi, bool p_enable);
	bool voxel_gi_is_using_two_bounces(RID p_voxel_gi) const;

	void voxel_gi_set_anisotropy_strength(RID p_voxel_gi, float p_strength);
	float voxel_gi_get_anisotropy_strength(RID p_voxel_gi) const;

	uint32_t voxel_gi_get_version(RID p_probe);
	uint32_t voxel_gi_get_data_version(RID p_probe);

	RID voxel_gi_get_octree_buffer(RID p_voxel_gi) const;
	RID voxel_gi_get_data_buffer(RID p_voxel_gi) const;

	RID voxel_gi_get_sdf_texture(RID p_voxel_gi);

	/* LIGHTMAP CAPTURE */

	RID lightmap_allocate();
	void lightmap_initialize(RID p_lightmap);

	virtual void lightmap_set_textures(RID p_lightmap, RID p_light, bool p_uses_spherical_haromics);
	virtual void lightmap_set_probe_bounds(RID p_lightmap, const AABB &p_bounds);
	virtual void lightmap_set_probe_interior(RID p_lightmap, bool p_interior);
	virtual void lightmap_set_probe_capture_data(RID p_lightmap, const PackedVector3Array &p_points, const PackedColorArray &p_point_sh, const PackedInt32Array &p_tetrahedra, const PackedInt32Array &p_bsp_tree);
	virtual PackedVector3Array lightmap_get_probe_capture_points(RID p_lightmap) const;
	virtual PackedColorArray lightmap_get_probe_capture_sh(RID p_lightmap) const;
	virtual PackedInt32Array lightmap_get_probe_capture_tetrahedra(RID p_lightmap) const;
	virtual PackedInt32Array lightmap_get_probe_capture_bsp_tree(RID p_lightmap) const;
	virtual AABB lightmap_get_aabb(RID p_lightmap) const;
	virtual bool lightmap_is_interior(RID p_lightmap) const;
	virtual void lightmap_tap_sh_light(RID p_lightmap, const Vector3 &p_point, Color *r_sh);
	virtual void lightmap_set_probe_capture_update_speed(float p_speed);
	_FORCE_INLINE_ float lightmap_get_probe_capture_update_speed() const {
		return lightmap_probe_capture_update_speed;
	}
	_FORCE_INLINE_ RID lightmap_get_texture(RID p_lightmap) const {
		const Lightmap *lm = lightmap_owner.get_or_null(p_lightmap);
		ERR_FAIL_COND_V(!lm, RID());
		return lm->light_texture;
	}
	_FORCE_INLINE_ int32_t lightmap_get_array_index(RID p_lightmap) const {
		ERR_FAIL_COND_V(!using_lightmap_array, -1); //only for arrays
		const Lightmap *lm = lightmap_owner.get_or_null(p_lightmap);
		return lm->array_index;
	}
	_FORCE_INLINE_ bool lightmap_uses_spherical_harmonics(RID p_lightmap) const {
		ERR_FAIL_COND_V(!using_lightmap_array, false); //only for arrays
		const Lightmap *lm = lightmap_owner.get_or_null(p_lightmap);
		return lm->uses_spherical_harmonics;
	}
	_FORCE_INLINE_ uint64_t lightmap_array_get_version() const {
		ERR_FAIL_COND_V(!using_lightmap_array, 0); //only for arrays
		return lightmap_array_version;
	}

	_FORCE_INLINE_ int lightmap_array_get_size() const {
		ERR_FAIL_COND_V(!using_lightmap_array, 0); //only for arrays
		return lightmap_textures.size();
	}

	_FORCE_INLINE_ const Vector<RID> &lightmap_array_get_textures() const {
		ERR_FAIL_COND_V(!using_lightmap_array, lightmap_textures); //only for arrays
		return lightmap_textures;
	}

	/* PARTICLES */

	RID particles_allocate();
	void particles_initialize(RID p_particles_collision);

	void particles_set_mode(RID p_particles, RS::ParticlesMode p_mode);
	void particles_set_emitting(RID p_particles, bool p_emitting);
	void particles_set_amount(RID p_particles, int p_amount);
	void particles_set_lifetime(RID p_particles, double p_lifetime);
	void particles_set_one_shot(RID p_particles, bool p_one_shot);
	void particles_set_pre_process_time(RID p_particles, double p_time);
	void particles_set_explosiveness_ratio(RID p_particles, real_t p_ratio);
	void particles_set_randomness_ratio(RID p_particles, real_t p_ratio);
	void particles_set_custom_aabb(RID p_particles, const AABB &p_aabb);
	void particles_set_speed_scale(RID p_particles, double p_scale);
	void particles_set_use_local_coordinates(RID p_particles, bool p_enable);
	void particles_set_process_material(RID p_particles, RID p_material);
	RID particles_get_process_material(RID p_particles) const;

	void particles_set_fixed_fps(RID p_particles, int p_fps);
	void particles_set_interpolate(RID p_particles, bool p_enable);
	void particles_set_fractional_delta(RID p_particles, bool p_enable);
	void particles_set_collision_base_size(RID p_particles, real_t p_size);
	void particles_set_transform_align(RID p_particles, RS::ParticlesTransformAlign p_transform_align);

	void particles_set_trails(RID p_particles, bool p_enable, double p_length);
	void particles_set_trail_bind_poses(RID p_particles, const Vector<Transform3D> &p_bind_poses);

	void particles_restart(RID p_particles);
	void particles_emit(RID p_particles, const Transform3D &p_transform, const Vector3 &p_velocity, const Color &p_color, const Color &p_custom, uint32_t p_emit_flags);

	void particles_set_subemitter(RID p_particles, RID p_subemitter_particles);

	void particles_set_draw_order(RID p_particles, RS::ParticlesDrawOrder p_order);

	void particles_set_draw_passes(RID p_particles, int p_count);
	void particles_set_draw_pass_mesh(RID p_particles, int p_pass, RID p_mesh);

	void particles_request_process(RID p_particles);
	AABB particles_get_current_aabb(RID p_particles);
	AABB particles_get_aabb(RID p_particles) const;

	void particles_set_emission_transform(RID p_particles, const Transform3D &p_transform);

	bool particles_get_emitting(RID p_particles);
	int particles_get_draw_passes(RID p_particles) const;
	RID particles_get_draw_pass_mesh(RID p_particles, int p_pass) const;

	void particles_set_view_axis(RID p_particles, const Vector3 &p_axis, const Vector3 &p_up_axis);

	virtual bool particles_is_inactive(RID p_particles) const;

	_FORCE_INLINE_ RS::ParticlesMode particles_get_mode(RID p_particles) {
		Particles *particles = particles_owner.get_or_null(p_particles);
		ERR_FAIL_COND_V(!particles, RS::PARTICLES_MODE_2D);
		return particles->mode;
	}

	_FORCE_INLINE_ uint32_t particles_get_amount(RID p_particles, uint32_t &r_trail_divisor) {
		Particles *particles = particles_owner.get_or_null(p_particles);
		ERR_FAIL_COND_V(!particles, 0);

		if (particles->trails_enabled && particles->trail_bind_poses.size() > 1) {
			r_trail_divisor = particles->trail_bind_poses.size();
		} else {
			r_trail_divisor = 1;
		}

		return particles->amount * r_trail_divisor;
	}

	_FORCE_INLINE_ bool particles_has_collision(RID p_particles) {
		Particles *particles = particles_owner.get_or_null(p_particles);
		ERR_FAIL_COND_V(!particles, 0);

		return particles->has_collision_cache;
	}

	_FORCE_INLINE_ uint32_t particles_is_using_local_coords(RID p_particles) {
		Particles *particles = particles_owner.get_or_null(p_particles);
		ERR_FAIL_COND_V(!particles, false);

		return particles->use_local_coords;
	}

	_FORCE_INLINE_ RID particles_get_instance_buffer_uniform_set(RID p_particles, RID p_shader, uint32_t p_set) {
		Particles *particles = particles_owner.get_or_null(p_particles);
		ERR_FAIL_COND_V(!particles, RID());
		if (particles->particles_transforms_buffer_uniform_set.is_null()) {
			_particles_update_buffers(particles);

			Vector<RD::Uniform> uniforms;

			{
				RD::Uniform u;
				u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
				u.binding = 0;
				u.append_id(particles->particle_instance_buffer);
				uniforms.push_back(u);
			}

			particles->particles_transforms_buffer_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, p_shader, p_set);
		}

		return particles->particles_transforms_buffer_uniform_set;
	}

	virtual void particles_add_collision(RID p_particles, RID p_particles_collision_instance);
	virtual void particles_remove_collision(RID p_particles, RID p_particles_collision_instance);
	virtual void particles_set_canvas_sdf_collision(RID p_particles, bool p_enable, const Transform2D &p_xform, const Rect2 &p_to_screen, RID p_texture);

	/* PARTICLES COLLISION */

	RID particles_collision_allocate();
	void particles_collision_initialize(RID p_particles_collision);

	virtual void particles_collision_set_collision_type(RID p_particles_collision, RS::ParticlesCollisionType p_type);
	virtual void particles_collision_set_cull_mask(RID p_particles_collision, uint32_t p_cull_mask);
	virtual void particles_collision_set_sphere_radius(RID p_particles_collision, real_t p_radius); //for spheres
	virtual void particles_collision_set_box_extents(RID p_particles_collision, const Vector3 &p_extents); //for non-spheres
	virtual void particles_collision_set_attractor_strength(RID p_particles_collision, real_t p_strength);
	virtual void particles_collision_set_attractor_directionality(RID p_particles_collision, real_t p_directionality);
	virtual void particles_collision_set_attractor_attenuation(RID p_particles_collision, real_t p_curve);
	virtual void particles_collision_set_field_texture(RID p_particles_collision, RID p_texture); //for SDF and vector field, heightfield is dynamic
	virtual void particles_collision_height_field_update(RID p_particles_collision); //for SDF and vector field
	virtual void particles_collision_set_height_field_resolution(RID p_particles_collision, RS::ParticlesCollisionHeightfieldResolution p_resolution); //for SDF and vector field
	virtual AABB particles_collision_get_aabb(RID p_particles_collision) const;
	virtual Vector3 particles_collision_get_extents(RID p_particles_collision) const;
	virtual bool particles_collision_is_heightfield(RID p_particles_collision) const;
	RID particles_collision_get_heightfield_framebuffer(RID p_particles_collision) const;

	/* FOG VOLUMES */

	virtual RID fog_volume_allocate();
	virtual void fog_volume_initialize(RID p_rid);

	virtual void fog_volume_set_shape(RID p_fog_volume, RS::FogVolumeShape p_shape);
	virtual void fog_volume_set_extents(RID p_fog_volume, const Vector3 &p_extents);
	virtual void fog_volume_set_material(RID p_fog_volume, RID p_material);
	virtual RS::FogVolumeShape fog_volume_get_shape(RID p_fog_volume) const;
	virtual RID fog_volume_get_material(RID p_fog_volume) const;
	virtual AABB fog_volume_get_aabb(RID p_fog_volume) const;
	virtual Vector3 fog_volume_get_extents(RID p_fog_volume) const;

	/* VISIBILITY NOTIFIER */

	virtual RID visibility_notifier_allocate();
	virtual void visibility_notifier_initialize(RID p_notifier);
	virtual void visibility_notifier_set_aabb(RID p_notifier, const AABB &p_aabb);
	virtual void visibility_notifier_set_callbacks(RID p_notifier, const Callable &p_enter_callbable, const Callable &p_exit_callable);

	virtual AABB visibility_notifier_get_aabb(RID p_notifier) const;
	virtual void visibility_notifier_call(RID p_notifier, bool p_enter, bool p_deferred);

	//used from 2D and 3D
	virtual RID particles_collision_instance_create(RID p_collision);
	virtual void particles_collision_instance_set_transform(RID p_collision_instance, const Transform3D &p_transform);
	virtual void particles_collision_instance_set_active(RID p_collision_instance, bool p_active);

	/* RENDER TARGET API */

	RID render_target_create();
	void render_target_set_position(RID p_render_target, int p_x, int p_y);
	void render_target_set_size(RID p_render_target, int p_width, int p_height, uint32_t p_view_count);
	RID render_target_get_texture(RID p_render_target);
	void render_target_set_external_texture(RID p_render_target, unsigned int p_texture_id);
	void render_target_set_flag(RID p_render_target, RenderTargetFlags p_flag, bool p_value);
	bool render_target_was_used(RID p_render_target);
	void render_target_set_as_unused(RID p_render_target);
	void render_target_copy_to_back_buffer(RID p_render_target, const Rect2i &p_region, bool p_gen_mipmaps);
	void render_target_clear_back_buffer(RID p_render_target, const Rect2i &p_region, const Color &p_color);
	void render_target_gen_back_buffer_mipmaps(RID p_render_target, const Rect2i &p_region);

	RID render_target_get_back_buffer_uniform_set(RID p_render_target, RID p_base_shader);

	virtual void render_target_request_clear(RID p_render_target, const Color &p_clear_color);
	virtual bool render_target_is_clear_requested(RID p_render_target);
	virtual Color render_target_get_clear_request_color(RID p_render_target);
	virtual void render_target_disable_clear_request(RID p_render_target);
	virtual void render_target_do_clear_request(RID p_render_target);

	virtual void render_target_set_sdf_size_and_scale(RID p_render_target, RS::ViewportSDFOversize p_size, RS::ViewportSDFScale p_scale);
	RID render_target_get_sdf_texture(RID p_render_target);
	RID render_target_get_sdf_framebuffer(RID p_render_target);
	void render_target_sdf_process(RID p_render_target);
	virtual Rect2i render_target_get_sdf_rect(RID p_render_target) const;
	void render_target_mark_sdf_enabled(RID p_render_target, bool p_enabled);
	bool render_target_is_sdf_enabled(RID p_render_target) const;

	Size2 render_target_get_size(RID p_render_target);
	RID render_target_get_rd_framebuffer(RID p_render_target);
	RID render_target_get_rd_texture(RID p_render_target);
	RID render_target_get_rd_backbuffer(RID p_render_target);
	RID render_target_get_rd_backbuffer_framebuffer(RID p_render_target);

	RID render_target_get_framebuffer_uniform_set(RID p_render_target);
	RID render_target_get_backbuffer_uniform_set(RID p_render_target);

	void render_target_set_framebuffer_uniform_set(RID p_render_target, RID p_uniform_set);
	void render_target_set_backbuffer_uniform_set(RID p_render_target, RID p_uniform_set);

	RS::InstanceType get_base_type(RID p_rid) const;

	bool free(RID p_rid);

	bool has_os_feature(const String &p_feature) const;

	void update_dirty_resources();

	void set_debug_generate_wireframes(bool p_generate) {}

	//keep cached since it can be called form any thread
	uint64_t texture_mem_cache = 0;
	uint64_t buffer_mem_cache = 0;
	uint64_t total_mem_cache = 0;

	virtual void update_memory_info();
	virtual uint64_t get_rendering_info(RS::RenderingInfo p_info);

	String get_video_adapter_name() const;
	String get_video_adapter_vendor() const;
	RenderingDevice::DeviceType get_video_adapter_type() const;

	virtual void capture_timestamps_begin();
	virtual void capture_timestamp(const String &p_name);
	virtual uint32_t get_captured_timestamps_count() const;
	virtual uint64_t get_captured_timestamps_frame() const;
	virtual uint64_t get_captured_timestamp_gpu_time(uint32_t p_index) const;
	virtual uint64_t get_captured_timestamp_cpu_time(uint32_t p_index) const;
	virtual String get_captured_timestamp_name(uint32_t p_index) const;

	static RendererStorageRD *base_singleton;

	void init_effects(bool p_prefer_raster_effects);
	EffectsRD *get_effects();

	RendererStorageRD();
	~RendererStorageRD();
};

#endif // RASTERIZER_STORAGE_RD_H