diff options
Diffstat (limited to 'drivers/gles3/rasterizer_scene_gles3.h')
-rw-r--r-- | drivers/gles3/rasterizer_scene_gles3.h | 733 |
1 files changed, 733 insertions, 0 deletions
diff --git a/drivers/gles3/rasterizer_scene_gles3.h b/drivers/gles3/rasterizer_scene_gles3.h new file mode 100644 index 0000000000..7838345e59 --- /dev/null +++ b/drivers/gles3/rasterizer_scene_gles3.h @@ -0,0 +1,733 @@ +#ifndef RASTERIZERSCENEGLES3_H +#define RASTERIZERSCENEGLES3_H + +#include "rasterizer_storage_gles3.h" +#include "drivers/gles3/shaders/scene.glsl.h" +#include "drivers/gles3/shaders/cube_to_dp.glsl.h" +#include "drivers/gles3/shaders/resolve.glsl.h" +#include "drivers/gles3/shaders/screen_space_reflection.glsl.h" +#include "drivers/gles3/shaders/effect_blur.glsl.h" +#include "drivers/gles3/shaders/subsurf_scattering.glsl.h" +#include "drivers/gles3/shaders/ssao_minify.glsl.h" +#include "drivers/gles3/shaders/ssao.glsl.h" +#include "drivers/gles3/shaders/ssao_blur.glsl.h" +#include "drivers/gles3/shaders/exposure.glsl.h" +#include "drivers/gles3/shaders/tonemap.glsl.h" + +class RasterizerSceneGLES3 : public RasterizerScene { +public: + + enum ShadowFilterMode { + SHADOW_FILTER_NEAREST, + SHADOW_FILTER_PCF5, + SHADOW_FILTER_PCF13, + }; + + + ShadowFilterMode shadow_filter_mode; + + uint64_t shadow_atlas_realloc_tolerance_msec; + + enum SubSurfaceScatterQuality { + SSS_QUALITY_LOW, + SSS_QUALITY_MEDIUM, + SSS_QUALITY_HIGH, + }; + + SubSurfaceScatterQuality subsurface_scatter_quality; + float subsurface_scatter_size; + bool subsurface_scatter_follow_surface; + + uint64_t render_pass; + uint64_t scene_pass; + uint32_t current_material_index; + uint32_t current_geometry_index; + + RID default_material; + RID default_material_twosided; + RID default_shader; + RID default_shader_twosided; + + RasterizerStorageGLES3 *storage; + + Vector<RasterizerStorageGLES3::RenderTarget::Exposure> exposure_shrink; + int exposure_shrink_size; + + struct State { + + + + bool texscreen_copied; + int current_blend_mode; + float current_line_width; + int current_depth_draw; + GLuint current_main_tex; + + SceneShaderGLES3 scene_shader; + CubeToDpShaderGLES3 cube_to_dp_shader; + ResolveShaderGLES3 resolve_shader; + ScreenSpaceReflectionShaderGLES3 ssr_shader; + EffectBlurShaderGLES3 effect_blur_shader; + SubsurfScatteringShaderGLES3 sss_shader; + SsaoMinifyShaderGLES3 ssao_minify_shader; + SsaoShaderGLES3 ssao_shader; + SsaoBlurShaderGLES3 ssao_blur_shader; + ExposureShaderGLES3 exposure_shader; + TonemapShaderGLES3 tonemap_shader; + + + struct SceneDataUBO { + + float projection_matrix[16]; + float camera_inverse_matrix[16]; + float camera_matrix[16]; + float time[4]; + float ambient_light_color[4]; + float bg_color[4]; + float ambient_energy; + float bg_energy; + float shadow_z_offset; + float shadow_slope_scale; + float shadow_dual_paraboloid_render_zfar; + float shadow_dual_paraboloid_render_side; + float shadow_atlas_pixel_size[2]; + float shadow_directional_pixel_size[2]; + float reflection_multiplier; + float subsurface_scatter_width; + float ambient_occlusion_affect_light; + + } ubo_data; + + GLuint scene_ubo; + + struct EnvironmentRadianceUBO { + + float transform[16]; + float box_min[4]; //unused for now + float box_max[4]; + float ambient_contribution; + + } env_radiance_data; + + GLuint env_radiance_ubo; + + GLuint brdf_texture; + + GLuint skybox_verts; + GLuint skybox_array; + + GLuint directional_ubo; + + GLuint spot_array_ubo; + GLuint omni_array_ubo; + GLuint reflection_array_ubo; + + GLuint immediate_buffer; + GLuint immediate_array; + + uint32_t ubo_light_size; + uint8_t *spot_array_tmp; + uint8_t *omni_array_tmp; + uint8_t *reflection_array_tmp; + + int max_ubo_lights; + int max_forward_lights_per_object; + int max_ubo_reflections; + int max_skeleton_bones; + + + + int spot_light_count; + int omni_light_count; + int directional_light_count; + int reflection_probe_count; + + bool cull_front; + bool used_sss; + + } state; + + + /* SHADOW ATLAS API */ + + struct ShadowAtlas : public RID_Data { + + enum { + QUADRANT_SHIFT=27, + SHADOW_INDEX_MASK=(1<<QUADRANT_SHIFT)-1, + SHADOW_INVALID=0xFFFFFFFF + }; + + struct Quadrant { + + uint32_t subdivision; + + struct Shadow { + RID owner; + uint64_t version; + uint64_t alloc_tick; + + Shadow() { + version=0; + alloc_tick=0; + } + }; + + Vector<Shadow> shadows; + + Quadrant() { + subdivision=0; //not in use + } + + } quadrants[4]; + + int size_order[4]; + uint32_t smallest_subdiv; + + int size; + + GLuint fbo; + GLuint depth; + + Map<RID,uint32_t> shadow_owners; + }; + + struct ShadowCubeMap { + + GLuint fbo_id[6]; + GLuint cubemap; + int size; + }; + + Vector<ShadowCubeMap> shadow_cubemaps; + + RID_Owner<ShadowAtlas> shadow_atlas_owner; + + RID shadow_atlas_create(); + void shadow_atlas_set_size(RID p_atlas,int p_size); + void shadow_atlas_set_quadrant_subdivision(RID p_atlas,int p_quadrant,int p_subdivision); + bool _shadow_atlas_find_shadow(ShadowAtlas *shadow_atlas, int *p_in_quadrants, int p_quadrant_count, int p_current_subdiv, uint64_t p_tick, int &r_quadrant, int &r_shadow); + bool shadow_atlas_update_light(RID p_atlas,RID p_light_intance,float p_coverage,uint64_t p_light_version); + + + struct DirectionalShadow { + GLuint fbo; + GLuint depth; + int light_count; + int size; + int current_light; + } directional_shadow; + + virtual int get_directional_light_shadow_size(RID p_light_intance); + virtual void set_directional_shadow_count(int p_count); + + /* REFLECTION PROBE ATLAS API */ + + struct ReflectionAtlas : public RID_Data { + + int subdiv; + int size; + + struct Reflection { + RID owner; + uint64_t last_frame; + }; + + GLuint fbo[6]; + GLuint color; + + Vector<Reflection> reflections; + }; + + mutable RID_Owner<ReflectionAtlas> reflection_atlas_owner; + + virtual RID reflection_atlas_create(); + virtual void reflection_atlas_set_size(RID p_ref_atlas,int p_size); + virtual void reflection_atlas_set_subdivision(RID p_ref_atlas,int p_subdiv); + + /* REFLECTION CUBEMAPS */ + + struct ReflectionCubeMap { + + GLuint fbo_id[6]; + GLuint cubemap; + GLuint depth; + int size; + }; + + Vector<ReflectionCubeMap> reflection_cubemaps; + + /* REFLECTION PROBE INSTANCE */ + + struct ReflectionProbeInstance : public RID_Data { + + RasterizerStorageGLES3::ReflectionProbe *probe_ptr; + RID probe; + RID self; + RID atlas; + + int reflection_atlas_index; + + int render_step; + + + + uint64_t last_pass; + int reflection_index; + + Transform transform; + }; + + struct ReflectionProbeDataUBO { + + float box_extents[4]; + float box_ofs[4]; + float params[4]; // intensity, 0, 0, boxproject + float ambient[4]; //color, probe contrib + float atlas_clamp[4]; + float local_matrix[16]; //up to here for spot and omni, rest is for directional + //notes: for ambientblend, use distance to edge to blend between already existing global environment + }; + + + mutable RID_Owner<ReflectionProbeInstance> reflection_probe_instance_owner; + + virtual RID reflection_probe_instance_create(RID p_probe); + virtual void reflection_probe_instance_set_transform(RID p_instance,const Transform& p_transform); + virtual void reflection_probe_release_atlas_index(RID p_instance); + virtual bool reflection_probe_instance_needs_redraw(RID p_instance); + virtual bool reflection_probe_instance_has_reflection(RID p_instance); + virtual bool reflection_probe_instance_begin_render(RID p_instance, RID p_reflection_atlas); + virtual bool reflection_probe_instance_postprocess_step(RID p_instance); + + + + + /* ENVIRONMENT API */ + + struct Environment : public RID_Data { + + VS::EnvironmentBG bg_mode; + + RID skybox; + float skybox_scale; + + Color bg_color; + float bg_energy; + float skybox_ambient; + + Color ambient_color; + float ambient_energy; + float ambient_skybox_contribution; + + int canvas_max_layer; + + bool ssr_enabled; + int ssr_max_steps; + float ssr_accel; + float ssr_fade; + float ssr_depth_tolerance; + bool ssr_smooth; + bool ssr_roughness; + + + bool ssao_enabled; + float ssao_intensity; + float ssao_radius; + float ssao_intensity2; + float ssao_radius2; + float ssao_bias; + float ssao_light_affect; + Color ssao_color; + bool ssao_filter; + + bool glow_enabled; + int glow_levels; + float glow_intensity; + float glow_strength; + float glow_bloom; + VS::EnvironmentGlowBlendMode glow_blend_mode; + float glow_hdr_bleed_treshold; + float glow_hdr_bleed_scale; + bool glow_bicubic_upscale; + + VS::EnvironmentToneMapper tone_mapper; + float tone_mapper_exposure; + float tone_mapper_exposure_white; + bool auto_exposure; + float auto_exposure_speed; + float auto_exposure_min; + float auto_exposure_max; + float auto_exposure_grey; + + bool dof_blur_far_enabled; + float dof_blur_far_distance; + float dof_blur_far_transition; + float dof_blur_far_amount; + VS::EnvironmentDOFBlurQuality dof_blur_far_quality; + + bool dof_blur_near_enabled; + float dof_blur_near_distance; + float dof_blur_near_transition; + float dof_blur_near_amount; + VS::EnvironmentDOFBlurQuality dof_blur_near_quality; + + Environment() { + bg_mode=VS::ENV_BG_CLEAR_COLOR; + skybox_scale=1.0; + bg_energy=1.0; + skybox_ambient=0; + ambient_energy=1.0; + ambient_skybox_contribution=0.0; + canvas_max_layer=0; + + ssr_enabled=false; + ssr_max_steps=64; + ssr_accel=0.04; + ssr_fade=2.0; + ssr_depth_tolerance=0.2; + ssr_smooth=true; + ssr_roughness=true; + + ssao_enabled=false; + ssao_intensity=1.0; + ssao_radius=1.0; + ssao_intensity2=1.0; + ssao_radius2=0.0; + ssao_bias=0.01; + ssao_light_affect=0; + ssao_filter=true; + + tone_mapper=VS::ENV_TONE_MAPPER_LINEAR; + tone_mapper_exposure=1.0; + tone_mapper_exposure_white=1.0; + auto_exposure=false; + auto_exposure_speed=0.5; + auto_exposure_min=0.05; + auto_exposure_max=8; + auto_exposure_grey=0.4; + + glow_enabled=false; + glow_levels=(1<<2)|(1<<4); + glow_intensity=0.8; + glow_strength=1.0; + glow_bloom=0.0; + glow_blend_mode=VS::GLOW_BLEND_MODE_SOFTLIGHT; + glow_hdr_bleed_treshold=1.0; + glow_hdr_bleed_scale=2.0; + glow_bicubic_upscale=false; + + dof_blur_far_enabled=false; + dof_blur_far_distance=10; + dof_blur_far_transition=5; + dof_blur_far_amount=0.1; + dof_blur_far_quality=VS::ENV_DOF_BLUR_QUALITY_MEDIUM; + + dof_blur_near_enabled=false; + dof_blur_near_distance=2; + dof_blur_near_transition=1; + dof_blur_near_amount=0.1; + dof_blur_near_quality=VS::ENV_DOF_BLUR_QUALITY_MEDIUM; + + } + }; + + RID_Owner<Environment> environment_owner; + + virtual RID environment_create(); + + virtual void environment_set_background(RID p_env,VS::EnvironmentBG p_bg); + virtual void environment_set_skybox(RID p_env,RID p_skybox); + virtual void environment_set_skybox_scale(RID p_env,float p_scale); + virtual void environment_set_bg_color(RID p_env,const Color& p_color); + virtual void environment_set_bg_energy(RID p_env,float p_energy); + virtual void environment_set_canvas_max_layer(RID p_env,int p_max_layer); + virtual void environment_set_ambient_light(RID p_env,const Color& p_color,float p_energy=1.0,float p_skybox_contribution=0.0); + + virtual void environment_set_dof_blur_near(RID p_env,bool p_enable,float p_distance,float p_transition,float p_far_amount,VS::EnvironmentDOFBlurQuality p_quality); + virtual void environment_set_dof_blur_far(RID p_env,bool p_enable,float p_distance,float p_transition,float p_far_amount,VS::EnvironmentDOFBlurQuality p_quality); + virtual void environment_set_glow(RID p_env,bool p_enable,int p_level_flags,float p_intensity,float p_strength,float p_bloom_treshold,VS::EnvironmentGlowBlendMode p_blend_mode,float p_hdr_bleed_treshold,float p_hdr_bleed_scale,bool p_bicubic_upscale); + virtual void environment_set_fog(RID p_env,bool p_enable,float p_begin,float p_end,RID p_gradient_texture); + + virtual void environment_set_ssr(RID p_env,bool p_enable, int p_max_steps,float p_accel,float p_fade,float p_depth_tolerance,bool p_smooth,bool p_roughness); + virtual void environment_set_ssao(RID p_env,bool p_enable, float p_radius, float p_radius2, float p_intensity2, float p_intensity, float p_bias, float p_light_affect,const Color &p_color,bool p_blur); + + + virtual void environment_set_tonemap(RID p_env,VS::EnvironmentToneMapper p_tone_mapper,float p_exposure,float p_white,bool p_auto_exposure,float p_min_luminance,float p_max_luminance,float p_auto_exp_speed,float p_auto_exp_scale); + + virtual void environment_set_adjustment(RID p_env,bool p_enable,float p_brightness,float p_contrast,float p_saturation,RID p_ramp); + + + /* LIGHT INSTANCE */ + + struct LightDataUBO { + + float light_pos_inv_radius[4]; + float light_direction_attenuation[4]; + float light_color_energy[4]; + float light_params[4]; //spot attenuation, spot angle, specular, shadow enabled + float light_clamp[4]; + float light_shadow_color[4]; + float shadow_matrix1[16]; //up to here for spot and omni, rest is for directional + float shadow_matrix2[16]; + float shadow_matrix3[16]; + float shadow_matrix4[16]; + float shadow_split_offsets[4]; + + }; + + struct LightInstance : public RID_Data { + + struct ShadowTransform { + + CameraMatrix camera; + Transform transform; + float farplane; + float split; + }; + + + + ShadowTransform shadow_transform[4]; + + RID self; + RID light; + RasterizerStorageGLES3::Light *light_ptr; + Transform transform; + + Vector3 light_vector; + Vector3 spot_vector; + float linear_att; + + uint64_t shadow_pass; + uint64_t last_scene_pass; + uint64_t last_scene_shadow_pass; + uint64_t last_pass; + uint16_t light_index; + uint16_t light_directional_index; + + uint32_t current_shadow_atlas_key; + + Vector2 dp; + + Rect2 directional_rect; + + + Set<RID> shadow_atlases; //shadow atlases where this light is registered + + LightInstance() { } + + }; + + mutable RID_Owner<LightInstance> light_instance_owner; + + virtual RID light_instance_create(RID p_light); + virtual void light_instance_set_transform(RID p_light_instance,const Transform& p_transform); + virtual void light_instance_set_shadow_transform(RID p_light_instance,const CameraMatrix& p_projection,const Transform& p_transform,float p_far,float p_split,int p_pass); + virtual void light_instance_mark_visible(RID p_light_instance); + + /* REFLECTION INSTANCE */ + + struct GIProbeInstance : public RID_Data { + RID data; + RasterizerStorageGLES3::GIProbe *probe; + GLuint tex_cache; + Vector3 cell_size_cache; + Vector3 bounds; + Transform transform_to_data; + + GIProbeInstance() { probe=NULL; tex_cache=0; } + }; + + + + mutable RID_Owner<GIProbeInstance> gi_probe_instance_owner; + + virtual RID gi_probe_instance_create(); + virtual void gi_probe_instance_set_light_data(RID p_probe,RID p_base,RID p_data); + virtual void gi_probe_instance_set_transform_to_data(RID p_probe,const Transform& p_xform); + virtual void gi_probe_instance_set_bounds(RID p_probe,const Vector3& p_bounds); + + /* RENDER LIST */ + + struct RenderList { + + enum { + DEFAULT_MAX_ELEMENTS=65536, + SORT_FLAG_SKELETON=1, + SORT_FLAG_INSTANCING=2, + MAX_DIRECTIONAL_LIGHTS=16, + MAX_LIGHTS=4096, + MAX_REFLECTIONS=1024, + + + SORT_KEY_DEPTH_LAYER_SHIFT=60, + SORT_KEY_UNSHADED_FLAG=uint64_t(1)<<59, + SORT_KEY_NO_DIRECTIONAL_FLAG=uint64_t(1)<<58, + SORT_KEY_GI_PROBES_FLAG=uint64_t(1)<<57, + SORT_KEY_SHADING_SHIFT=57, + SORT_KEY_SHADING_MASK=7, + SORT_KEY_MATERIAL_INDEX_SHIFT=40, + SORT_KEY_GEOMETRY_INDEX_SHIFT=20, + SORT_KEY_GEOMETRY_TYPE_SHIFT=15, + SORT_KEY_SKELETON_FLAG=2, + SORT_KEY_MIRROR_FLAG=1 + + }; + + int max_elements; + + struct Element { + + RasterizerScene::InstanceBase *instance; + RasterizerStorageGLES3::Geometry *geometry; + RasterizerStorageGLES3::Material *material; + RasterizerStorageGLES3::GeometryOwner *owner; + uint64_t sort_key; + + }; + + + Element *_elements; + Element **elements; + + int element_count; + int alpha_element_count; + + + void clear() { + + element_count=0; + alpha_element_count=0; + } + + //should eventually be replaced by radix + + struct SortByKey { + + _FORCE_INLINE_ bool operator()(const Element* A, const Element* B ) const { + return A->sort_key < B->sort_key; + } + }; + + void sort_by_key(bool p_alpha) { + + SortArray<Element*,SortByKey> sorter; + if (p_alpha) { + sorter.sort(&elements[max_elements-alpha_element_count],alpha_element_count); + } else { + sorter.sort(elements,element_count); + } + } + + struct SortByDepth { + + _FORCE_INLINE_ bool operator()(const Element* A, const Element* B ) const { + return A->instance->depth > B->instance->depth; + } + }; + + void sort_by_depth(bool p_alpha) { + + SortArray<Element*,SortByDepth> sorter; + if (p_alpha) { + sorter.sort(&elements[max_elements-alpha_element_count],alpha_element_count); + } else { + sorter.sort(elements,element_count); + } + } + + + _FORCE_INLINE_ Element* add_element() { + + if (element_count+alpha_element_count>=max_elements) + return NULL; + elements[element_count]=&_elements[element_count]; + return elements[element_count++]; + } + + _FORCE_INLINE_ Element* add_alpha_element() { + + if (element_count+alpha_element_count>=max_elements) + return NULL; + int idx = max_elements-alpha_element_count-1; + elements[idx]=&_elements[idx]; + alpha_element_count++; + return elements[idx]; + } + + void init() { + + element_count = 0; + alpha_element_count =0; + elements=memnew_arr(Element*,max_elements); + _elements=memnew_arr(Element,max_elements); + for (int i=0;i<max_elements;i++) + elements[i]=&_elements[i]; // assign elements + + } + + + RenderList() { + + max_elements=DEFAULT_MAX_ELEMENTS; + } + + ~RenderList() { + memdelete_arr(elements); + memdelete_arr(_elements); + } + }; + + + LightInstance *directional_light; + LightInstance *directional_lights[RenderList::MAX_DIRECTIONAL_LIGHTS]; + + + + RenderList render_list; + + _FORCE_INLINE_ void _set_cull(bool p_front,bool p_reverse_cull); + + _FORCE_INLINE_ bool _setup_material(RasterizerStorageGLES3::Material* p_material,bool p_alpha_pass); + _FORCE_INLINE_ void _setup_transform(InstanceBase *p_instance,const Transform& p_view_transform,const CameraMatrix& p_projection); + _FORCE_INLINE_ void _setup_geometry(RenderList::Element *e); + _FORCE_INLINE_ void _render_geometry(RenderList::Element *e); + _FORCE_INLINE_ void _setup_light(RenderList::Element *e,const Transform& p_view_transform); + + void _render_list(RenderList::Element **p_elements, int p_element_count, const Transform& p_view_transform, const CameraMatrix& p_projection, GLuint p_base_env, bool p_reverse_cull, bool p_alpha_pass, bool p_shadow, bool p_directional_add, bool p_directional_shadows); + + + _FORCE_INLINE_ void _add_geometry( RasterizerStorageGLES3::Geometry* p_geometry, InstanceBase *p_instance, RasterizerStorageGLES3::GeometryOwner *p_owner,int p_material,bool p_shadow); + + void _draw_skybox(RasterizerStorageGLES3::SkyBox *p_skybox, const CameraMatrix& p_projection, const Transform& p_transform, bool p_vflip, float p_scale); + + void _setup_environment(Environment *env, const CameraMatrix &p_cam_projection, const Transform& p_cam_transform); + void _setup_directional_light(int p_index, const Transform &p_camera_inverse_transformm, bool p_use_shadows); + void _setup_lights(RID *p_light_cull_result, int p_light_cull_count, const Transform &p_camera_inverse_transform, const CameraMatrix& p_camera_projection, RID p_shadow_atlas); + void _setup_reflections(RID *p_reflection_probe_cull_result, int p_reflection_probe_cull_count, const Transform& p_camera_inverse_transform, const CameraMatrix& p_camera_projection, RID p_reflection_atlas, Environment *p_env); + + void _copy_screen(); + void _copy_to_front_buffer(Environment *env); + void _copy_texture_to_front_buffer(GLuint p_texture); //used for debug + + void _fill_render_list(InstanceBase** p_cull_result,int p_cull_count,bool p_shadow); + + void _render_mrts(Environment *env, const CameraMatrix &p_cam_projection); + void _post_process(Environment *env, const CameraMatrix &p_cam_projection); + + virtual void render_scene(const Transform& p_cam_transform,const CameraMatrix& p_cam_projection,bool p_cam_ortogonal,InstanceBase** p_cull_result,int p_cull_count,RID* p_light_cull_result,int p_light_cull_count,RID* p_reflection_probe_cull_result,int p_reflection_probe_cull_count,RID p_environment,RID p_shadow_atlas,RID p_reflection_atlas,RID p_reflection_probe,int p_reflection_probe_pass); + virtual void render_shadow(RID p_light,RID p_shadow_atlas,int p_pass,InstanceBase** p_cull_result,int p_cull_count); + virtual bool free(RID p_rid); + + void _generate_brdf(); + + virtual void set_scene_pass(uint64_t p_pass); + + void iteration(); + void initialize(); + void finalize(); + RasterizerSceneGLES3(); +}; + +#endif // RASTERIZERSCENEGLES3_H |