Merge pull request #46811 from BastiaanOlij/rename_forward_renderer

Renaming RendererSceneRenderForward to ...ForwardClustered

1 files changed, 771 insertions, 0 deletions

diff --git a/servers/rendering/renderer_rd/renderer_scene_render_forward_clustered.h b/servers/rendering/renderer_rd/renderer_scene_render_forward_clustered.h
new file mode 100644
index 0000000000..96ab227c7c
--- /dev/null
+++ b/servers/rendering/renderer_rd/renderer_scene_render_forward_clustered.h
@@ -0,0 +1,771 @@
+/*************************************************************************/
+/*  renderer_scene_render_forward_clustered.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 RENDERING_SERVER_SCENE_RENDER_FORWARD_CLUSTERED_H
+#define RENDERING_SERVER_SCENE_RENDER_FORWARD_CLUSTERED_H
+
+#include "core/templates/paged_allocator.h"
+#include "servers/rendering/renderer_rd/pipeline_cache_rd.h"
+#include "servers/rendering/renderer_rd/renderer_scene_render_rd.h"
+#include "servers/rendering/renderer_rd/renderer_storage_rd.h"
+#include "servers/rendering/renderer_rd/shaders/scene_forward_clustered.glsl.gen.h"
+
+class RendererSceneRenderForwardClustered : public RendererSceneRenderRD {
+	enum {
+		SCENE_UNIFORM_SET = 0,
+		RENDER_PASS_UNIFORM_SET = 1,
+		TRANSFORMS_UNIFORM_SET = 2,
+		MATERIAL_UNIFORM_SET = 3
+	};
+
+	enum {
+		SDFGI_MAX_CASCADES = 8,
+		MAX_GI_PROBES = 8,
+		MAX_LIGHTMAPS = 8,
+		MAX_GI_PROBES_PER_INSTANCE = 2,
+		INSTANCE_DATA_BUFFER_MIN_SIZE = 4096
+	};
+
+	enum RenderListType {
+		RENDER_LIST_OPAQUE, //used for opaque objects
+		RENDER_LIST_ALPHA, //used for transparent objects
+		RENDER_LIST_SECONDARY, //used for shadows and other objects
+		RENDER_LIST_MAX
+
+	};
+
+	/* Scene Shader */
+
+	enum ShaderVersion {
+		SHADER_VERSION_DEPTH_PASS,
+		SHADER_VERSION_DEPTH_PASS_DP,
+		SHADER_VERSION_DEPTH_PASS_WITH_NORMAL_AND_ROUGHNESS,
+		SHADER_VERSION_DEPTH_PASS_WITH_NORMAL_AND_ROUGHNESS_AND_GIPROBE,
+		SHADER_VERSION_DEPTH_PASS_WITH_MATERIAL,
+		SHADER_VERSION_DEPTH_PASS_WITH_SDF,
+		SHADER_VERSION_COLOR_PASS,
+		SHADER_VERSION_COLOR_PASS_WITH_FORWARD_GI,
+		SHADER_VERSION_COLOR_PASS_WITH_SEPARATE_SPECULAR,
+		SHADER_VERSION_LIGHTMAP_COLOR_PASS,
+		SHADER_VERSION_LIGHTMAP_COLOR_PASS_WITH_SEPARATE_SPECULAR,
+		SHADER_VERSION_MAX
+	};
+
+	struct {
+		SceneForwardClusteredShaderRD scene_shader;
+		ShaderCompilerRD compiler;
+	} shader;
+
+	RendererStorageRD *storage;
+
+	/* Material */
+
+	struct ShaderData : public RendererStorageRD::ShaderData {
+		enum BlendMode { //used internally
+			BLEND_MODE_MIX,
+			BLEND_MODE_ADD,
+			BLEND_MODE_SUB,
+			BLEND_MODE_MUL,
+			BLEND_MODE_ALPHA_TO_COVERAGE
+		};
+
+		enum DepthDraw {
+			DEPTH_DRAW_DISABLED,
+			DEPTH_DRAW_OPAQUE,
+			DEPTH_DRAW_ALWAYS
+		};
+
+		enum DepthTest {
+			DEPTH_TEST_DISABLED,
+			DEPTH_TEST_ENABLED
+		};
+
+		enum Cull {
+			CULL_DISABLED,
+			CULL_FRONT,
+			CULL_BACK
+		};
+
+		enum CullVariant {
+			CULL_VARIANT_NORMAL,
+			CULL_VARIANT_REVERSED,
+			CULL_VARIANT_DOUBLE_SIDED,
+			CULL_VARIANT_MAX
+
+		};
+
+		enum AlphaAntiAliasing {
+			ALPHA_ANTIALIASING_OFF,
+			ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE,
+			ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE_AND_TO_ONE
+		};
+
+		bool valid;
+		RID version;
+		uint32_t vertex_input_mask;
+		PipelineCacheRD pipelines[CULL_VARIANT_MAX][RS::PRIMITIVE_MAX][SHADER_VERSION_MAX];
+
+		String path;
+
+		Map<StringName, ShaderLanguage::ShaderNode::Uniform> uniforms;
+		Vector<ShaderCompilerRD::GeneratedCode::Texture> texture_uniforms;
+
+		Vector<uint32_t> ubo_offsets;
+		uint32_t ubo_size;
+
+		String code;
+		Map<StringName, RID> default_texture_params;
+
+		DepthDraw depth_draw;
+		DepthTest depth_test;
+
+		bool uses_point_size;
+		bool uses_alpha;
+		bool uses_blend_alpha;
+		bool uses_alpha_clip;
+		bool uses_depth_pre_pass;
+		bool uses_discard;
+		bool uses_roughness;
+		bool uses_normal;
+
+		bool unshaded;
+		bool uses_vertex;
+		bool uses_sss;
+		bool uses_transmittance;
+		bool uses_screen_texture;
+		bool uses_depth_texture;
+		bool uses_normal_texture;
+		bool uses_time;
+		bool writes_modelview_or_projection;
+		bool uses_world_coordinates;
+
+		uint64_t last_pass = 0;
+		uint32_t index = 0;
+
+		virtual void set_code(const String &p_Code);
+		virtual void set_default_texture_param(const StringName &p_name, RID p_texture);
+		virtual void get_param_list(List<PropertyInfo> *p_param_list) const;
+		void get_instance_param_list(List<RendererStorage::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;
+
+		ShaderData();
+		virtual ~ShaderData();
+	};
+
+	RendererStorageRD::ShaderData *_create_shader_func();
+	static RendererStorageRD::ShaderData *_create_shader_funcs() {
+		return static_cast<RendererSceneRenderForwardClustered *>(singleton)->_create_shader_func();
+	}
+
+	struct MaterialData : public RendererStorageRD::MaterialData {
+		uint64_t last_frame;
+		ShaderData *shader_data;
+		RID uniform_buffer;
+		RID uniform_set;
+		Vector<RID> texture_cache;
+		Vector<uint8_t> ubo_data;
+		uint64_t last_pass = 0;
+		uint32_t index = 0;
+		RID next_pass;
+		uint8_t priority;
+		virtual void set_render_priority(int p_priority);
+		virtual void set_next_pass(RID p_pass);
+		virtual void update_parameters(const Map<StringName, Variant> &p_parameters, bool p_uniform_dirty, bool p_textures_dirty);
+		virtual ~MaterialData();
+	};
+
+	RendererStorageRD::MaterialData *_create_material_func(ShaderData *p_shader);
+	static RendererStorageRD::MaterialData *_create_material_funcs(RendererStorageRD::ShaderData *p_shader) {
+		return static_cast<RendererSceneRenderForwardClustered *>(singleton)->_create_material_func(static_cast<ShaderData *>(p_shader));
+	}
+
+	/* Framebuffer */
+
+	struct RenderBufferDataForward : public RenderBufferData {
+		//for rendering, may be MSAAd
+
+		RID color;
+		RID depth;
+		RID specular;
+		RID normal_roughness_buffer;
+		RID giprobe_buffer;
+
+		RS::ViewportMSAA msaa;
+		RD::TextureSamples texture_samples;
+
+		RID color_msaa;
+		RID depth_msaa;
+		RID specular_msaa;
+		RID normal_roughness_buffer_msaa;
+		RID roughness_buffer_msaa;
+		RID giprobe_buffer_msaa;
+
+		RID depth_fb;
+		RID depth_normal_roughness_fb;
+		RID depth_normal_roughness_giprobe_fb;
+		RID color_fb;
+		RID color_specular_fb;
+		RID specular_only_fb;
+		int width, height;
+
+		RID render_sdfgi_uniform_set;
+		void ensure_specular();
+		void ensure_giprobe();
+		void clear();
+		virtual void configure(RID p_color_buffer, RID p_depth_buffer, int p_width, int p_height, RS::ViewportMSAA p_msaa);
+
+		~RenderBufferDataForward();
+	};
+
+	virtual RenderBufferData *_create_render_buffer_data();
+	void _allocate_normal_roughness_texture(RenderBufferDataForward *rb);
+
+	RID shadow_sampler;
+	RID render_base_uniform_set;
+	LocalVector<RID> render_pass_uniform_sets;
+	RID sdfgi_pass_uniform_set;
+
+	uint64_t lightmap_texture_array_version = 0xFFFFFFFF;
+
+	virtual void _base_uniforms_changed();
+	void _render_buffers_clear_uniform_set(RenderBufferDataForward *rb);
+	virtual void _render_buffers_uniform_set_changed(RID p_render_buffers);
+	virtual RID _render_buffers_get_normal_texture(RID p_render_buffers);
+
+	void _update_render_base_uniform_set();
+	RID _setup_sdfgi_render_pass_uniform_set(RID p_albedo_texture, RID p_emission_texture, RID p_emission_aniso_texture, RID p_geom_facing_texture);
+	RID _setup_render_pass_uniform_set(RenderListType p_render_list, RID p_render_buffers, RID p_radiance_texture, RID p_shadow_atlas, RID p_reflection_atlas, RID p_cluster_buffer, const PagedArray<RID> &p_gi_probes, const PagedArray<RID> &p_lightmaps, bool p_use_directional_shadow_atlas = false, int p_index = 0);
+
+	enum PassMode {
+		PASS_MODE_COLOR,
+		PASS_MODE_COLOR_SPECULAR,
+		PASS_MODE_COLOR_TRANSPARENT,
+		PASS_MODE_SHADOW,
+		PASS_MODE_SHADOW_DP,
+		PASS_MODE_DEPTH,
+		PASS_MODE_DEPTH_NORMAL_ROUGHNESS,
+		PASS_MODE_DEPTH_NORMAL_ROUGHNESS_GIPROBE,
+		PASS_MODE_DEPTH_MATERIAL,
+		PASS_MODE_SDF,
+	};
+
+	struct GeometryInstanceSurfaceDataCache;
+	struct RenderElementInfo;
+
+	struct RenderListParameters {
+		GeometryInstanceSurfaceDataCache **elements = nullptr;
+		RenderElementInfo *element_info = nullptr;
+		int element_count = 0;
+		bool reverse_cull = false;
+		PassMode pass_mode = PASS_MODE_COLOR;
+		bool no_gi = false;
+		RID render_pass_uniform_set;
+		bool force_wireframe = false;
+		Vector2 uv_offset;
+		Plane lod_plane;
+		float lod_distance_multiplier = 0.0;
+		float screen_lod_threshold = 0.0;
+		RD::FramebufferFormatID framebuffer_format = 0;
+		uint32_t element_offset = 0;
+		uint32_t barrier = RD::BARRIER_MASK_ALL;
+
+		RenderListParameters(GeometryInstanceSurfaceDataCache **p_elements, RenderElementInfo *p_element_info, int p_element_count, bool p_reverse_cull, PassMode p_pass_mode, bool p_no_gi, RID p_render_pass_uniform_set, bool p_force_wireframe = false, const Vector2 &p_uv_offset = Vector2(), const Plane &p_lod_plane = Plane(), float p_lod_distance_multiplier = 0.0, float p_screen_lod_threshold = 0.0, uint32_t p_element_offset = 0, uint32_t p_barrier = RD::BARRIER_MASK_ALL) {
+			elements = p_elements;
+			element_info = p_element_info;
+			element_count = p_element_count;
+			reverse_cull = p_reverse_cull;
+			pass_mode = p_pass_mode;
+			no_gi = p_no_gi;
+			render_pass_uniform_set = p_render_pass_uniform_set;
+			force_wireframe = p_force_wireframe;
+			uv_offset = p_uv_offset;
+			lod_plane = p_lod_plane;
+			lod_distance_multiplier = p_lod_distance_multiplier;
+			screen_lod_threshold = p_screen_lod_threshold;
+			element_offset = p_element_offset;
+			barrier = p_barrier;
+		}
+	};
+
+	struct LightmapData {
+		float normal_xform[12];
+	};
+
+	struct LightmapCaptureData {
+		float sh[9 * 4];
+	};
+
+	enum {
+		INSTANCE_DATA_FLAG_USE_GI_BUFFERS = 1 << 6,
+		INSTANCE_DATA_FLAG_USE_SDFGI = 1 << 7,
+		INSTANCE_DATA_FLAG_USE_LIGHTMAP_CAPTURE = 1 << 8,
+		INSTANCE_DATA_FLAG_USE_LIGHTMAP = 1 << 9,
+		INSTANCE_DATA_FLAG_USE_SH_LIGHTMAP = 1 << 10,
+		INSTANCE_DATA_FLAG_USE_GIPROBE = 1 << 11,
+		INSTANCE_DATA_FLAG_MULTIMESH = 1 << 12,
+		INSTANCE_DATA_FLAG_MULTIMESH_FORMAT_2D = 1 << 13,
+		INSTANCE_DATA_FLAG_MULTIMESH_HAS_COLOR = 1 << 14,
+		INSTANCE_DATA_FLAG_MULTIMESH_HAS_CUSTOM_DATA = 1 << 15,
+		INSTANCE_DATA_FLAGS_MULTIMESH_STRIDE_SHIFT = 16,
+		INSTANCE_DATA_FLAGS_MULTIMESH_STRIDE_MASK = 0x7,
+		INSTANCE_DATA_FLAG_SKELETON = 1 << 19,
+	};
+
+	struct SceneState {
+		struct UBO {
+			float projection_matrix[16];
+			float inv_projection_matrix[16];
+
+			float camera_matrix[16];
+			float inv_camera_matrix[16];
+
+			float viewport_size[2];
+			float screen_pixel_size[2];
+
+			uint32_t cluster_shift;
+			uint32_t cluster_width;
+			uint32_t cluster_type_size;
+			uint32_t max_cluster_element_count_div_32;
+
+			float directional_penumbra_shadow_kernel[128]; //32 vec4s
+			float directional_soft_shadow_kernel[128];
+			float penumbra_shadow_kernel[128];
+			float soft_shadow_kernel[128];
+
+			uint32_t directional_penumbra_shadow_samples;
+			uint32_t directional_soft_shadow_samples;
+			uint32_t penumbra_shadow_samples;
+			uint32_t soft_shadow_samples;
+
+			float ambient_light_color_energy[4];
+
+			float ambient_color_sky_mix;
+			uint32_t use_ambient_light;
+			uint32_t use_ambient_cubemap;
+			uint32_t use_reflection_cubemap;
+
+			float radiance_inverse_xform[12];
+
+			float shadow_atlas_pixel_size[2];
+			float directional_shadow_pixel_size[2];
+
+			uint32_t directional_light_count;
+			float dual_paraboloid_side;
+			float z_far;
+			float z_near;
+
+			uint32_t ssao_enabled;
+			float ssao_light_affect;
+			float ssao_ao_affect;
+			uint32_t roughness_limiter_enabled;
+
+			float roughness_limiter_amount;
+			float roughness_limiter_limit;
+			uint32_t roughness_limiter_pad[2];
+
+			float ao_color[4];
+
+			float sdf_to_bounds[16];
+
+			int32_t sdf_offset[3];
+			uint32_t material_uv2_mode;
+
+			int32_t sdf_size[3];
+			uint32_t gi_upscale_for_msaa;
+
+			uint32_t volumetric_fog_enabled;
+			float volumetric_fog_inv_length;
+			float volumetric_fog_detail_spread;
+			uint32_t volumetric_fog_pad;
+
+			// Fog
+			uint32_t fog_enabled;
+			float fog_density;
+			float fog_height;
+			float fog_height_density;
+
+			float fog_light_color[3];
+			float fog_sun_scatter;
+
+			float fog_aerial_perspective;
+
+			float time;
+			float reflection_multiplier;
+
+			uint32_t pancake_shadows;
+		};
+
+		struct PushConstant {
+			uint32_t base_index; //
+			uint32_t uv_offset; //packed
+			uint32_t pad[2];
+		};
+
+		struct InstanceData {
+			float transform[16];
+			uint32_t flags;
+			uint32_t instance_uniforms_ofs; //base offset in global buffer for instance variables
+			uint32_t gi_offset; //GI information when using lightmapping (VCT or lightmap index)
+			uint32_t layer_mask;
+			float lightmap_uv_scale[4];
+		};
+
+		UBO ubo;
+
+		LocalVector<RID> uniform_buffers;
+
+		LightmapData lightmaps[MAX_LIGHTMAPS];
+		RID lightmap_ids[MAX_LIGHTMAPS];
+		bool lightmap_has_sh[MAX_LIGHTMAPS];
+		uint32_t lightmaps_used = 0;
+		uint32_t max_lightmaps;
+		RID lightmap_buffer;
+
+		RID instance_buffer[RENDER_LIST_MAX];
+		uint32_t instance_buffer_size[RENDER_LIST_MAX] = { 0, 0, 0 };
+		LocalVector<InstanceData> instance_data[RENDER_LIST_MAX];
+
+		LightmapCaptureData *lightmap_captures;
+		uint32_t max_lightmap_captures;
+		RID lightmap_capture_buffer;
+
+		RID giprobe_ids[MAX_GI_PROBES];
+		uint32_t giprobes_used = 0;
+
+		bool used_screen_texture = false;
+		bool used_normal_texture = false;
+		bool used_depth_texture = false;
+		bool used_sss = false;
+
+		struct ShadowPass {
+			uint32_t element_from;
+			uint32_t element_count;
+			bool flip_cull;
+			PassMode pass_mode;
+
+			RID rp_uniform_set;
+			Plane camera_plane;
+			float lod_distance_multiplier;
+			float screen_lod_threshold;
+
+			RID framebuffer;
+			RD::InitialAction initial_depth_action;
+			RD::FinalAction final_depth_action;
+			Rect2i rect;
+		};
+
+		LocalVector<ShadowPass> shadow_passes;
+
+	} scene_state;
+
+	static RendererSceneRenderForwardClustered *singleton;
+
+	double time;
+	RID default_shader;
+	RID default_material;
+	RID overdraw_material_shader;
+	RID overdraw_material;
+	RID wireframe_material_shader;
+	RID wireframe_material;
+	RID default_shader_rd;
+	RID default_shader_sdfgi_rd;
+
+	RID default_vec4_xform_buffer;
+	RID default_vec4_xform_uniform_set;
+
+	void _setup_environment(RID p_environment, RID p_render_buffers, const CameraMatrix &p_cam_projection, const Transform &p_cam_transform, RID p_reflection_probe, bool p_no_fog, const Size2i &p_screen_size, uint32_t p_cluster_size, uint32_t p_max_cluster_elements, RID p_shadow_atlas, bool p_flip_y, const Color &p_default_bg_color, float p_znear, float p_zfar, bool p_opaque_render_buffers = false, bool p_pancake_shadows = false, int p_index = 0);
+	void _setup_giprobes(const PagedArray<RID> &p_giprobes);
+	void _setup_lightmaps(const PagedArray<RID> &p_lightmaps, const Transform &p_cam_transform);
+
+	struct RenderElementInfo {
+		uint32_t repeat : 22;
+		uint32_t uses_lightmap : 1;
+		uint32_t uses_forward_gi : 1;
+		uint32_t lod_index : 8;
+	};
+
+	template <PassMode p_pass_mode>
+	_FORCE_INLINE_ void _render_list_template(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, RenderListParameters *p_params, uint32_t p_from_element, uint32_t p_to_element);
+
+	void _render_list(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, RenderListParameters *p_params, uint32_t p_from_element, uint32_t p_to_element);
+
+	LocalVector<RD::DrawListID> thread_draw_lists;
+	void _render_list_thread_function(uint32_t p_thread, RenderListParameters *p_params);
+	void _render_list_with_threads(RenderListParameters *p_params, RID p_framebuffer, RD::InitialAction p_initial_color_action, RD::FinalAction p_final_color_action, RD::InitialAction p_initial_depth_action, RD::FinalAction p_final_depth_action, const Vector<Color> &p_clear_color_values = Vector<Color>(), float p_clear_depth = 1.0, uint32_t p_clear_stencil = 0, const Rect2 &p_region = Rect2(), const Vector<RID> &p_storage_textures = Vector<RID>());
+
+	uint32_t render_list_thread_threshold = 500;
+
+	void _update_instance_data_buffer(RenderListType p_render_list);
+	void _fill_instance_data(RenderListType p_render_list, uint32_t p_offset = 0, int32_t p_max_elements = -1, bool p_update_buffer = true);
+	void _fill_render_list(RenderListType p_render_list, const PagedArray<GeometryInstance *> &p_instances, PassMode p_pass_mode, const CameraMatrix &p_cam_projection, const Transform &p_cam_transform, bool p_using_sdfgi = false, bool p_using_opaque_gi = false, const Plane &p_lod_camera_plane = Plane(), float p_lod_distance_multiplier = 0.0, float p_screen_lod_threshold = 0.0, bool p_append = false);
+
+	Map<Size2i, RID> sdfgi_framebuffer_size_cache;
+
+	struct GeometryInstanceData;
+	struct GeometryInstanceForward;
+
+	struct GeometryInstanceLightmapSH {
+		Color sh[9];
+	};
+
+	// Cached data for drawing surfaces
+	struct GeometryInstanceSurfaceDataCache {
+		enum {
+			FLAG_PASS_DEPTH = 1,
+			FLAG_PASS_OPAQUE = 2,
+			FLAG_PASS_ALPHA = 4,
+			FLAG_PASS_SHADOW = 8,
+			FLAG_USES_SHARED_SHADOW_MATERIAL = 128,
+			FLAG_USES_SUBSURFACE_SCATTERING = 2048,
+			FLAG_USES_SCREEN_TEXTURE = 4096,
+			FLAG_USES_DEPTH_TEXTURE = 8192,
+			FLAG_USES_NORMAL_TEXTURE = 16384,
+			FLAG_USES_DOUBLE_SIDED_SHADOWS = 32768,
+		};
+
+		union {
+			struct {
+				uint64_t lod_index : 8;
+				uint64_t surface_index : 10;
+				uint64_t geometry_id : 32;
+				uint64_t material_id_low : 14;
+
+				uint64_t material_id_hi : 18;
+				uint64_t shader_id : 32;
+				uint64_t uses_forward_gi : 1;
+				uint64_t uses_lightmap : 1;
+				uint64_t depth_layer : 4;
+				uint64_t priority : 8;
+			};
+			struct {
+				uint64_t sort_key1;
+				uint64_t sort_key2;
+			};
+		} sort;
+
+		RS::PrimitiveType primitive = RS::PRIMITIVE_MAX;
+		uint32_t flags = 0;
+		uint32_t surface_index = 0;
+
+		void *surface = nullptr;
+		RID material_uniform_set;
+		ShaderData *shader = nullptr;
+
+		void *surface_shadow = nullptr;
+		RID material_uniform_set_shadow;
+		ShaderData *shader_shadow = nullptr;
+
+		GeometryInstanceSurfaceDataCache *next = nullptr;
+		GeometryInstanceForward *owner = nullptr;
+	};
+
+	struct GeometryInstanceForward : public GeometryInstance {
+		//used during rendering
+		bool mirror = false;
+		bool non_uniform_scale = false;
+		float lod_bias = 0.0;
+		float lod_model_scale = 1.0;
+		AABB transformed_aabb; //needed for LOD
+		float depth = 0;
+		uint32_t gi_offset_cache = 0;
+		uint32_t flags_cache = 0;
+		bool store_transform_cache = true;
+		int32_t shader_parameters_offset = -1;
+		uint32_t lightmap_slice_index;
+		Rect2 lightmap_uv_scale;
+		uint32_t layer_mask = 1;
+		RID transforms_uniform_set;
+		uint32_t instance_count = 0;
+		RID mesh_instance;
+		bool can_sdfgi = false;
+		//used during setup
+		uint32_t base_flags = 0;
+		Transform transform;
+		RID gi_probes[MAX_GI_PROBES_PER_INSTANCE];
+		RID lightmap_instance;
+		GeometryInstanceLightmapSH *lightmap_sh = nullptr;
+		GeometryInstanceSurfaceDataCache *surface_caches = nullptr;
+		SelfList<GeometryInstanceForward> dirty_list_element;
+
+		struct Data {
+			//data used less often goes into regular heap
+			RID base;
+			RS::InstanceType base_type;
+
+			RID skeleton;
+			Vector<RID> surface_materials;
+			RID material_override;
+			AABB aabb;
+
+			bool use_dynamic_gi = false;
+			bool use_baked_light = false;
+			bool cast_double_sided_shaodows = false;
+			bool mirror = false;
+			bool dirty_dependencies = false;
+
+			RendererStorage::DependencyTracker dependency_tracker;
+		};
+
+		Data *data = nullptr;
+
+		GeometryInstanceForward() :
+				dirty_list_element(this) {}
+	};
+
+	static void _geometry_instance_dependency_changed(RendererStorage::DependencyChangedNotification p_notification, RendererStorage::DependencyTracker *p_tracker);
+	static void _geometry_instance_dependency_deleted(const RID &p_dependency, RendererStorage::DependencyTracker *p_tracker);
+
+	SelfList<GeometryInstanceForward>::List geometry_instance_dirty_list;
+
+	PagedAllocator<GeometryInstanceForward> geometry_instance_alloc;
+	PagedAllocator<GeometryInstanceSurfaceDataCache> geometry_instance_surface_alloc;
+	PagedAllocator<GeometryInstanceLightmapSH> geometry_instance_lightmap_sh;
+
+	void _geometry_instance_add_surface_with_material(GeometryInstanceForward *ginstance, uint32_t p_surface, MaterialData *p_material, uint32_t p_material_id, uint32_t p_shader_id, RID p_mesh);
+	void _geometry_instance_add_surface(GeometryInstanceForward *ginstance, uint32_t p_surface, RID p_material, RID p_mesh);
+	void _geometry_instance_mark_dirty(GeometryInstance *p_geometry_instance);
+	void _geometry_instance_update(GeometryInstance *p_geometry_instance);
+	void _update_dirty_geometry_instances();
+
+	bool low_end = false;
+
+	/* Render List */
+
+	struct RenderList {
+		LocalVector<GeometryInstanceSurfaceDataCache *> elements;
+		LocalVector<RenderElementInfo> element_info;
+
+		void clear() {
+			elements.clear();
+			element_info.clear();
+		}
+
+		//should eventually be replaced by radix
+
+		struct SortByKey {
+			_FORCE_INLINE_ bool operator()(const GeometryInstanceSurfaceDataCache *A, const GeometryInstanceSurfaceDataCache *B) const {
+				return (A->sort.sort_key2 == B->sort.sort_key2) ? (A->sort.sort_key1 < B->sort.sort_key1) : (A->sort.sort_key2 < B->sort.sort_key2);
+			}
+		};
+
+		void sort_by_key() {
+			SortArray<GeometryInstanceSurfaceDataCache *, SortByKey> sorter;
+			sorter.sort(elements.ptr(), elements.size());
+		}
+
+		void sort_by_key_range(uint32_t p_from, uint32_t p_size) {
+			SortArray<GeometryInstanceSurfaceDataCache *, SortByKey> sorter;
+			sorter.sort(elements.ptr() + p_from, p_size);
+		}
+
+		struct SortByDepth {
+			_FORCE_INLINE_ bool operator()(const GeometryInstanceSurfaceDataCache *A, const GeometryInstanceSurfaceDataCache *B) const {
+				return (A->owner->depth < B->owner->depth);
+			}
+		};
+
+		void sort_by_depth() { //used for shadows
+
+			SortArray<GeometryInstanceSurfaceDataCache *, SortByDepth> sorter;
+			sorter.sort(elements.ptr(), elements.size());
+		}
+
+		struct SortByReverseDepthAndPriority {
+			_FORCE_INLINE_ bool operator()(const GeometryInstanceSurfaceDataCache *A, const GeometryInstanceSurfaceDataCache *B) const {
+				return (A->sort.priority == B->sort.priority) ? (A->owner->depth > B->owner->depth) : (A->sort.priority < B->sort.priority);
+			}
+		};
+
+		void sort_by_reverse_depth_and_priority(bool p_alpha) { //used for alpha
+
+			SortArray<GeometryInstanceSurfaceDataCache *, SortByReverseDepthAndPriority> sorter;
+			sorter.sort(elements.ptr(), elements.size());
+		}
+
+		_FORCE_INLINE_ void add_element(GeometryInstanceSurfaceDataCache *p_element) {
+			elements.push_back(p_element);
+		}
+	};
+
+	RenderList render_list[RENDER_LIST_MAX];
+
+protected:
+	virtual void _render_scene(RID p_render_buffer, const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, const PagedArray<GeometryInstance *> &p_instances, const PagedArray<RID> &p_gi_probes, const PagedArray<RID> &p_lightmaps, RID p_environment, RID p_cluster_buffer, uint32_t p_cluster_size, uint32_t p_max_cluster_elements, RID p_camera_effects, RID p_shadow_atlas, RID p_reflection_atlas, RID p_reflection_probe, int p_reflection_probe_pass, const Color &p_default_bg_color, float p_lod_threshold);
+
+	virtual void _render_shadow_begin();
+	virtual void _render_shadow_append(RID p_framebuffer, const PagedArray<GeometryInstance *> &p_instances, const CameraMatrix &p_projection, const Transform &p_transform, float p_zfar, float p_bias, float p_normal_bias, bool p_use_dp, bool p_use_dp_flip, bool p_use_pancake, const Plane &p_camera_plane = Plane(), float p_lod_distance_multiplier = 0.0, float p_screen_lod_threshold = 0.0, const Rect2i &p_rect = Rect2i(), bool p_flip_y = false, bool p_clear_region = true, bool p_begin = true, bool p_end = true);
+	virtual void _render_shadow_process();
+	virtual void _render_shadow_end(uint32_t p_barrier = RD::BARRIER_MASK_ALL);
+
+	virtual void _render_material(const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, const PagedArray<GeometryInstance *> &p_instances, RID p_framebuffer, const Rect2i &p_region);
+	virtual void _render_uv2(const PagedArray<GeometryInstance *> &p_instances, RID p_framebuffer, const Rect2i &p_region);
+	virtual void _render_sdfgi(RID p_render_buffers, const Vector3i &p_from, const Vector3i &p_size, const AABB &p_bounds, const PagedArray<GeometryInstance *> &p_instances, const RID &p_albedo_texture, const RID &p_emission_texture, const RID &p_emission_aniso_texture, const RID &p_geom_facing_texture);
+	virtual void _render_particle_collider_heightfield(RID p_fb, const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, const PagedArray<GeometryInstance *> &p_instances);
+
+public:
+	virtual GeometryInstance *geometry_instance_create(RID p_base);
+	virtual void geometry_instance_set_skeleton(GeometryInstance *p_geometry_instance, RID p_skeleton);
+	virtual void geometry_instance_set_material_override(GeometryInstance *p_geometry_instance, RID p_override);
+	virtual void geometry_instance_set_surface_materials(GeometryInstance *p_geometry_instance, const Vector<RID> &p_materials);
+	virtual void geometry_instance_set_mesh_instance(GeometryInstance *p_geometry_instance, RID p_mesh_instance);
+	virtual void geometry_instance_set_transform(GeometryInstance *p_geometry_instance, const Transform &p_transform, const AABB &p_aabb, const AABB &p_transformed_aabb);
+	virtual void geometry_instance_set_layer_mask(GeometryInstance *p_geometry_instance, uint32_t p_layer_mask);
+	virtual void geometry_instance_set_lod_bias(GeometryInstance *p_geometry_instance, float p_lod_bias);
+	virtual void geometry_instance_set_use_baked_light(GeometryInstance *p_geometry_instance, bool p_enable);
+	virtual void geometry_instance_set_use_dynamic_gi(GeometryInstance *p_geometry_instance, bool p_enable);
+	virtual void geometry_instance_set_use_lightmap(GeometryInstance *p_geometry_instance, RID p_lightmap_instance, const Rect2 &p_lightmap_uv_scale, int p_lightmap_slice_index);
+	virtual void geometry_instance_set_lightmap_capture(GeometryInstance *p_geometry_instance, const Color *p_sh9);
+	virtual void geometry_instance_set_instance_shader_parameters_offset(GeometryInstance *p_geometry_instance, int32_t p_offset);
+	virtual void geometry_instance_set_cast_double_sided_shadows(GeometryInstance *p_geometry_instance, bool p_enable);
+
+	virtual Transform geometry_instance_get_transform(GeometryInstance *p_instance);
+	virtual AABB geometry_instance_get_aabb(GeometryInstance *p_instance);
+
+	virtual void geometry_instance_free(GeometryInstance *p_geometry_instance);
+
+	virtual uint32_t geometry_instance_get_pair_mask();
+	virtual void geometry_instance_pair_light_instances(GeometryInstance *p_geometry_instance, const RID *p_light_instances, uint32_t p_light_instance_count);
+	virtual void geometry_instance_pair_reflection_probe_instances(GeometryInstance *p_geometry_instance, const RID *p_reflection_probe_instances, uint32_t p_reflection_probe_instance_count);
+	virtual void geometry_instance_pair_decal_instances(GeometryInstance *p_geometry_instance, const RID *p_decal_instances, uint32_t p_decal_instance_count);
+	virtual void geometry_instance_pair_gi_probe_instances(GeometryInstance *p_geometry_instance, const RID *p_gi_probe_instances, uint32_t p_gi_probe_instance_count);
+
+	virtual void set_time(double p_time, double p_step);
+
+	virtual bool free(RID p_rid);
+
+	RendererSceneRenderForwardClustered(RendererStorageRD *p_storage);
+	~RendererSceneRenderForwardClustered();
+};
+#endif // !RENDERING_SERVER_SCENE_RENDER_FORWARD_CLUSTERED_H