diff options
Diffstat (limited to 'servers/rendering/renderer_rd/environment/fog.h')
| -rw-r--r-- | servers/rendering/renderer_rd/environment/fog.h | 328 |
1 files changed, 328 insertions, 0 deletions
diff --git a/servers/rendering/renderer_rd/environment/fog.h b/servers/rendering/renderer_rd/environment/fog.h new file mode 100644 index 0000000000..e777a1d383 --- /dev/null +++ b/servers/rendering/renderer_rd/environment/fog.h @@ -0,0 +1,328 @@ +/*************************************************************************/ +/* fog.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2022 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 FOG_RD_H +#define FOG_RD_H + +#include "core/templates/local_vector.h" +#include "core/templates/rid_owner.h" +#include "servers/rendering/environment/renderer_fog.h" +#include "servers/rendering/renderer_rd/cluster_builder_rd.h" +#include "servers/rendering/renderer_rd/environment/gi.h" +#include "servers/rendering/renderer_rd/shaders/environment/volumetric_fog.glsl.gen.h" +#include "servers/rendering/renderer_rd/shaders/environment/volumetric_fog_process.glsl.gen.h" +#include "servers/rendering/storage/utilities.h" + +namespace RendererRD { + +class Fog : public RendererFog { +public: + /* FOG VOLUMES */ + + struct FogVolume { + RID material; + Vector3 extents = Vector3(1, 1, 1); + + RS::FogVolumeShape shape = RS::FOG_VOLUME_SHAPE_BOX; + + Dependency dependency; + }; + + struct FogVolumeInstance { + RID volume; + Transform3D transform; + bool active = false; + }; + +private: + static Fog *singleton; + + mutable RID_Owner<FogVolume, true> fog_volume_owner; + mutable RID_Owner<FogVolumeInstance> fog_volume_instance_owner; + + /* Volumetric Fog */ + struct VolumetricFogShader { + enum FogSet { + FOG_SET_BASE, + FOG_SET_UNIFORMS, + FOG_SET_MATERIAL, + FOG_SET_MAX, + }; + + struct FogPushConstant { + float position[3]; + float pad; + + float extents[3]; + float pad2; + + int32_t corner[3]; + uint32_t shape; + + float transform[16]; + }; + + struct VolumeUBO { + float fog_frustum_size_begin[2]; + float fog_frustum_size_end[2]; + + float fog_frustum_end; + float z_near; + float z_far; + float time; + + int32_t fog_volume_size[3]; + uint32_t directional_light_count; + + uint32_t use_temporal_reprojection; + uint32_t temporal_frame; + float detail_spread; + float temporal_blend; + + float to_prev_view[16]; + float transform[16]; + }; + + ShaderCompiler compiler; + VolumetricFogShaderRD shader; + RID volume_ubo; + + RID default_shader; + RID default_material; + RID default_shader_rd; + + RID base_uniform_set; + + RID params_ubo; + + enum { + VOLUMETRIC_FOG_PROCESS_SHADER_DENSITY, + VOLUMETRIC_FOG_PROCESS_SHADER_DENSITY_WITH_SDFGI, + VOLUMETRIC_FOG_PROCESS_SHADER_FILTER, + VOLUMETRIC_FOG_PROCESS_SHADER_FOG, + VOLUMETRIC_FOG_PROCESS_SHADER_COPY, + VOLUMETRIC_FOG_PROCESS_SHADER_MAX, + }; + + struct ParamsUBO { + float fog_frustum_size_begin[2]; + float fog_frustum_size_end[2]; + + float fog_frustum_end; + float ambient_inject; + float z_far; + uint32_t filter_axis; + + float ambient_color[3]; + float sky_contribution; + + int32_t fog_volume_size[3]; + uint32_t directional_light_count; + + float base_emission[3]; + float base_density; + + float base_scattering[3]; + float phase_g; + + float detail_spread; + float gi_inject; + uint32_t max_voxel_gi_instances; + uint32_t cluster_type_size; + + float screen_size[2]; + uint32_t cluster_shift; + uint32_t cluster_width; + + uint32_t max_cluster_element_count_div_32; + uint32_t use_temporal_reprojection; + uint32_t temporal_frame; + float temporal_blend; + + float cam_rotation[12]; + float to_prev_view[16]; + float radiance_inverse_xform[12]; + }; + + VolumetricFogProcessShaderRD process_shader; + + RID process_shader_version; + RID process_pipelines[VOLUMETRIC_FOG_PROCESS_SHADER_MAX]; + + } volumetric_fog; + + Vector3i _point_get_position_in_froxel_volume(const Vector3 &p_point, float fog_end, const Vector2 &fog_near_size, const Vector2 &fog_far_size, float volumetric_fog_detail_spread, const Vector3 &fog_size, const Transform3D &p_cam_transform); + + struct FogShaderData : public RendererRD::ShaderData { + bool valid = false; + RID version; + + RID pipeline; + HashMap<StringName, ShaderLanguage::ShaderNode::Uniform> uniforms; + Vector<ShaderCompiler::GeneratedCode::Texture> texture_uniforms; + + Vector<uint32_t> ubo_offsets; + uint32_t ubo_size = 0; + + String path; + String code; + HashMap<StringName, HashMap<int, RID>> default_texture_params; + + bool uses_time = false; + + virtual void set_path_hint(const String &p_hint); + 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; + + FogShaderData() {} + virtual ~FogShaderData(); + }; + + struct FogMaterialData : public RendererRD::MaterialData { + FogShaderData *shader_data = nullptr; + RID uniform_set; + bool uniform_set_updated; + + virtual void set_render_priority(int p_priority) {} + virtual void set_next_pass(RID p_pass) {} + virtual bool update_parameters(const HashMap<StringName, Variant> &p_parameters, bool p_uniform_dirty, bool p_textures_dirty); + virtual ~FogMaterialData(); + }; + + RendererRD::ShaderData *_create_fog_shader_func(); + static RendererRD::ShaderData *_create_fog_shader_funcs(); + + RendererRD::MaterialData *_create_fog_material_func(FogShaderData *p_shader); + static RendererRD::MaterialData *_create_fog_material_funcs(RendererRD::ShaderData *p_shader); + +public: + static Fog *get_singleton() { return singleton; } + + Fog(); + ~Fog(); + + /* FOG VOLUMES */ + + FogVolume *get_fog_volume(RID p_rid) { return fog_volume_owner.get_or_null(p_rid); }; + bool owns_fog_volume(RID p_rid) { return fog_volume_owner.owns(p_rid); }; + + virtual RID fog_volume_allocate() override; + virtual void fog_volume_initialize(RID p_rid) override; + virtual void fog_free(RID p_rid) override; + + virtual void fog_volume_set_shape(RID p_fog_volume, RS::FogVolumeShape p_shape) override; + virtual void fog_volume_set_extents(RID p_fog_volume, const Vector3 &p_extents) override; + virtual void fog_volume_set_material(RID p_fog_volume, RID p_material) override; + virtual RS::FogVolumeShape fog_volume_get_shape(RID p_fog_volume) const override; + RID fog_volume_get_material(RID p_fog_volume) const; + virtual AABB fog_volume_get_aabb(RID p_fog_volume) const override; + Vector3 fog_volume_get_extents(RID p_fog_volume) const; + + /* FOG VOLUMES INSTANCE */ + + FogVolumeInstance *get_fog_volume_instance(RID p_rid) { return fog_volume_instance_owner.get_or_null(p_rid); }; + bool owns_fog_volume_instance(RID p_rid) { return fog_volume_instance_owner.owns(p_rid); }; + + RID fog_volume_instance_create(RID p_fog_volume); + void fog_instance_free(RID p_rid); + + /* Volumetric FOG */ + struct VolumetricFog { + enum { + MAX_TEMPORAL_FRAMES = 16 + }; + + uint32_t width = 0; + uint32_t height = 0; + uint32_t depth = 0; + + float length; + float spread; + + RID light_density_map; + RID prev_light_density_map; + RID fog_map; + RID density_map; + RID light_map; + RID emissive_map; + + RID fog_uniform_set; + RID copy_uniform_set; + RID process_uniform_set_density; + RID process_uniform_set; + RID process_uniform_set2; + RID sdfgi_uniform_set; + RID sky_uniform_set; + + int last_shadow_filter = -1; + + VolumetricFog(const Vector3i &fog_size, RID p_sky_shader); + ~VolumetricFog(); + }; + + void init_fog_shader(uint32_t p_max_directional_lights, int p_roughness_layers, bool p_is_using_radiance_cubemap_array); + void free_fog_shader(); + + struct VolumetricFogSettings { + Vector2i rb_size; + double time; + bool is_using_radiance_cubemap_array; + uint32_t max_cluster_elements; + bool volumetric_fog_filter_active; + RID shadow_sampler; + RID voxel_gl_buffer; + RID shadow_atlas_depth; + RID omni_light_buffer; + RID spot_light_buffer; + RID directional_shadow_depth; + RID directional_light_buffer; + + // Objects related to our render buffer + VolumetricFog *vfog; + ClusterBuilderRD *cluster_builder; + GI *gi; + GI::SDFGI *sdfgi; + GI::RenderBuffersGI *rbgi; + RID env; + SkyRD *sky; + }; + void volumetric_fog_update(const VolumetricFogSettings &p_settings, const Projection &p_cam_projection, const Transform3D &p_cam_transform, const Transform3D &p_prev_cam_inv_transform, RID p_shadow_atlas, int p_directional_light_count, bool p_use_directional_shadows, int p_positional_light_count, int p_voxel_gi_count, const PagedArray<RID> &p_fog_volumes); +}; + +} // namespace RendererRD + +#endif // FOG_RD_H |