virtualx-engine/servers/rendering/rasterizer_rd/rasterizer_scene_high_end_rd.h
2020-04-14 17:05:45 -03:00

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20 KiB
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/*************************************************************************/
/* rasterizer_scene_high_end_rd.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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 RASTERIZER_SCENE_HIGHEND_RD_H
#define RASTERIZER_SCENE_HIGHEND_RD_H
#include "servers/rendering/rasterizer_rd/light_cluster_builder.h"
#include "servers/rendering/rasterizer_rd/rasterizer_scene_rd.h"
#include "servers/rendering/rasterizer_rd/rasterizer_storage_rd.h"
#include "servers/rendering/rasterizer_rd/render_pipeline_vertex_format_cache_rd.h"
#include "servers/rendering/rasterizer_rd/shaders/scene_high_end.glsl.gen.h"
class RasterizerSceneHighEndRD : public RasterizerSceneRD {
enum {
SCENE_UNIFORM_SET = 0,
RADIANCE_UNIFORM_SET = 1,
VIEW_DEPENDANT_UNIFORM_SET = 2,
RENDER_BUFFERS_UNIFORM_SET = 3,
TRANSFORMS_UNIFORM_SET = 4,
MATERIAL_UNIFORM_SET = 5
};
/* Scene Shader */
enum ShaderVersion {
SHADER_VERSION_DEPTH_PASS,
SHADER_VERSION_DEPTH_PASS_DP,
SHADER_VERSION_DEPTH_PASS_WITH_NORMAL,
SHADER_VERSION_DEPTH_PASS_WITH_NORMAL_AND_ROUGHNESS,
SHADER_VERSION_DEPTH_PASS_WITH_MATERIAL,
SHADER_VERSION_COLOR_PASS,
SHADER_VERSION_COLOR_PASS_WITH_SEPARATE_SPECULAR,
SHADER_VERSION_VCT_COLOR_PASS,
SHADER_VERSION_VCT_COLOR_PASS_WITH_SEPARATE_SPECULAR,
SHADER_VERSION_LIGHTMAP_COLOR_PASS,
SHADER_VERSION_LIGHTMAP_COLOR_PASS_WITH_SEPARATE_SPECULAR,
SHADER_VERSION_MAX
};
struct {
SceneHighEndShaderRD scene_shader;
ShaderCompilerRD compiler;
} shader;
RasterizerStorageRD *storage;
/* Material */
struct ShaderData : public RasterizerStorageRD::ShaderData {
enum BlendMode { //used internally
BLEND_MODE_MIX,
BLEND_MODE_ADD,
BLEND_MODE_SUB,
BLEND_MODE_MUL,
};
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
};
bool valid;
RID version;
uint32_t vertex_input_mask;
RenderPipelineVertexFormatCacheRD 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_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;
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;
ShaderData();
virtual ~ShaderData();
};
RasterizerStorageRD::ShaderData *_create_shader_func();
static RasterizerStorageRD::ShaderData *_create_shader_funcs() {
return static_cast<RasterizerSceneHighEndRD *>(singleton)->_create_shader_func();
}
struct MaterialData : public RasterizerStorageRD::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();
};
RasterizerStorageRD::MaterialData *_create_material_func(ShaderData *p_shader);
static RasterizerStorageRD::MaterialData *_create_material_funcs(RasterizerStorageRD::ShaderData *p_shader) {
return static_cast<RasterizerSceneHighEndRD *>(singleton)->_create_material_func(static_cast<ShaderData *>(p_shader));
}
/* Push Constant */
struct PushConstant {
uint32_t index;
uint32_t pad[3];
};
/* Framebuffer */
struct RenderBufferDataHighEnd : public RenderBufferData {
//for rendering, may be MSAAd
RID color;
RID depth;
RID specular;
RID normal_buffer;
RID roughness_buffer;
RS::ViewportMSAA msaa;
RD::TextureSamples texture_samples;
RID color_msaa;
RID depth_msaa;
RID specular_msaa;
RID normal_buffer_msaa;
RID roughness_buffer_msaa;
RID depth_fb;
RID depth_normal_fb;
RID depth_normal_roughness_fb;
RID color_fb;
RID color_specular_fb;
RID specular_only_fb;
int width, height;
void ensure_specular();
void clear();
virtual void configure(RID p_color_buffer, RID p_depth_buffer, int p_width, int p_height, RS::ViewportMSAA p_msaa);
RID uniform_set;
~RenderBufferDataHighEnd();
};
virtual RenderBufferData *_create_render_buffer_data();
void _allocate_normal_texture(RenderBufferDataHighEnd *rb);
void _allocate_roughness_texture(RenderBufferDataHighEnd *rb);
RID shadow_sampler;
RID render_base_uniform_set;
RID view_dependant_uniform_set;
virtual void _base_uniforms_changed();
void _render_buffers_clear_uniform_set(RenderBufferDataHighEnd *rb);
virtual void _render_buffers_uniform_set_changed(RID p_render_buffers);
virtual RID _render_buffers_get_roughness_texture(RID p_render_buffers);
virtual RID _render_buffers_get_normal_texture(RID p_render_buffers);
void _update_render_base_uniform_set();
void _setup_view_dependant_uniform_set(RID p_shadow_atlas, RID p_reflection_atlas);
void _update_render_buffers_uniform_set(RID p_render_buffers);
/* Scene State UBO */
struct ReflectionData { //should always be 128 bytes
float box_extents[3];
float index;
float box_offset[3];
uint32_t mask;
float params[4]; // intensity, 0, interior , boxproject
float ambient[4]; // ambient color, energy
float local_matrix[16]; // up to here for spot and omni, rest is for directional
};
struct LightData {
float position[3];
float inv_radius;
float direction[3];
float size;
uint16_t attenuation_energy[2]; //16 bits attenuation, then energy
uint8_t color_specular[4]; //rgb color, a specular (8 bit unorm)
uint16_t cone_attenuation_angle[2]; // attenuation and angle, (16bit float)
uint8_t shadow_color_enabled[4]; //shadow rgb color, a>0.5 enabled (8bit unorm)
float atlas_rect[4]; // in omni, used for atlas uv, in spot, used for projector uv
float shadow_matrix[16];
float shadow_bias;
float shadow_normal_bias;
float transmittance_bias;
float soft_shadow_size;
float soft_shadow_scale;
uint32_t mask;
uint32_t pad[2];
float projector_rect[4];
};
struct DirectionalLightData {
float direction[3];
float energy;
float color[3];
float size;
float specular;
uint32_t mask;
float softshadow_angle;
float soft_shadow_scale;
uint32_t blend_splits;
uint32_t shadow_enabled;
float fade_from;
float fade_to;
float shadow_bias[4];
float shadow_normal_bias[4];
float shadow_transmittance_bias[4];
float shadow_transmittance_z_scale[4];
float shadow_range_begin[4];
float shadow_split_offsets[4];
float shadow_matrices[4][16];
float shadow_color1[4];
float shadow_color2[4];
float shadow_color3[4];
float shadow_color4[4];
float uv_scale1[2];
float uv_scale2[2];
float uv_scale3[2];
float uv_scale4[2];
};
struct GIProbeData {
float xform[16];
float bounds[3];
float dynamic_range;
float bias;
float normal_bias;
uint32_t blend_ambient;
uint32_t texture_slot;
float anisotropy_strength;
float ao;
float ao_size;
uint32_t pad[1];
};
struct DecalData {
float xform[16];
float inv_extents[3];
float albedo_mix;
float albedo_rect[4];
float normal_rect[4];
float orm_rect[4];
float emission_rect[4];
float modulate[4];
float emission_energy;
uint32_t mask;
float upper_fade;
float lower_fade;
float normal_xform[12];
float normal[3];
float normal_fade;
};
enum {
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 InstanceData {
float transform[16];
float normal_transform[16];
uint32_t flags;
uint32_t instance_ofs; //instance_offset in instancing/skeleton buffer
uint32_t gi_offset; //GI information when using lightmapping (VCT or lightmap)
uint32_t mask;
};
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];
float time;
float reflection_multiplier;
uint32_t pancake_shadows;
uint32_t pad;
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 ao_color[4];
};
UBO ubo;
RID uniform_buffer;
ReflectionData *reflections;
uint32_t max_reflections;
RID reflection_buffer;
uint32_t max_reflection_probes_per_instance;
GIProbeData *gi_probes;
uint32_t max_gi_probes;
RID gi_probe_buffer;
uint32_t max_gi_probe_probes_per_instance;
DecalData *decals;
uint32_t max_decals;
RID decal_buffer;
LightData *lights;
uint32_t max_lights;
RID light_buffer;
DirectionalLightData *directional_lights;
uint32_t max_directional_lights;
RID directional_light_buffer;
RID instance_buffer;
InstanceData *instances;
uint32_t max_instances;
bool used_screen_texture = false;
bool used_normal_texture = false;
bool used_depth_texture = false;
bool used_sss = false;
uint32_t current_shader_index = 0;
uint32_t current_material_index = 0;
} scene_state;
/* Render List */
struct RenderList {
int max_elements;
struct Element {
RasterizerScene::InstanceBase *instance;
MaterialData *material;
union {
struct {
//from least significant to most significant in sort, TODO: should be endian swapped on big endian
uint64_t geometry_index : 20;
uint64_t material_index : 15;
uint64_t shader_index : 12;
uint64_t uses_instancing : 1;
uint64_t uses_vct : 1;
uint64_t uses_lightmap : 1;
uint64_t depth_layer : 4;
uint64_t priority : 8;
};
uint64_t sort_key;
};
uint32_t surface_index;
};
Element *base_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) { //used for shadows
SortArray<Element *, SortByDepth> sorter;
if (p_alpha) {
sorter.sort(&elements[max_elements - alpha_element_count], alpha_element_count);
} else {
sorter.sort(elements, element_count);
}
}
struct SortByReverseDepthAndPriority {
_FORCE_INLINE_ bool operator()(const Element *A, const Element *B) const {
uint32_t layer_A = uint32_t(A->priority);
uint32_t layer_B = uint32_t(B->priority);
if (layer_A == layer_B) {
return A->instance->depth > B->instance->depth;
} else {
return layer_A < layer_B;
}
}
};
void sort_by_reverse_depth_and_priority(bool p_alpha) { //used for alpha
SortArray<Element *, SortByReverseDepthAndPriority> 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 nullptr;
elements[element_count] = &base_elements[element_count];
return elements[element_count++];
}
_FORCE_INLINE_ Element *add_alpha_element() {
if (element_count + alpha_element_count >= max_elements)
return nullptr;
int idx = max_elements - alpha_element_count - 1;
elements[idx] = &base_elements[idx];
alpha_element_count++;
return elements[idx];
}
void init() {
element_count = 0;
alpha_element_count = 0;
elements = memnew_arr(Element *, max_elements);
base_elements = memnew_arr(Element, max_elements);
for (int i = 0; i < max_elements; i++)
elements[i] = &base_elements[i]; // assign elements
}
RenderList() {
max_elements = 0;
}
~RenderList() {
memdelete_arr(elements);
memdelete_arr(base_elements);
}
};
RenderList render_list;
static RasterizerSceneHighEndRD *singleton;
uint64_t render_pass;
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_radiance_uniform_set;
RID default_render_buffers_uniform_set;
RID default_vec4_xform_buffer;
RID default_vec4_xform_uniform_set;
LightClusterBuilder cluster_builder;
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,
PASS_MODE_DEPTH_NORMAL_ROUGHNESS,
PASS_MODE_DEPTH_MATERIAL,
};
void _setup_environment(RID p_environment, const CameraMatrix &p_cam_projection, const Transform &p_cam_transform, RID p_reflection_probe, bool p_no_fog, const Size2 &p_screen_pixel_size, 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);
void _setup_lights(RID *p_light_cull_result, int p_light_cull_count, const Transform &p_camera_inverse_transform, RID p_shadow_atlas, bool p_using_shadows);
void _setup_decals(const RID *p_decal_instances, int p_decal_count, const Transform &p_camera_inverse_xform);
void _setup_reflections(RID *p_reflection_probe_cull_result, int p_reflection_probe_cull_count, const Transform &p_camera_inverse_transform, RID p_environment);
void _setup_gi_probes(RID *p_gi_probe_probe_cull_result, int p_gi_probe_probe_cull_count, const Transform &p_camera_transform);
void _fill_instances(RenderList::Element **p_elements, int p_element_count, bool p_for_depth);
void _render_list(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, RenderList::Element **p_elements, int p_element_count, bool p_reverse_cull, PassMode p_pass_mode, bool p_no_gi, RID p_radiance_uniform_set, RID p_render_buffers_uniform_set);
_FORCE_INLINE_ void _add_geometry(InstanceBase *p_instance, uint32_t p_surface, RID p_material, PassMode p_pass_mode, uint32_t p_geometry_index);
_FORCE_INLINE_ void _add_geometry_with_material(InstanceBase *p_instance, uint32_t p_surface, MaterialData *p_material, RID p_material_rid, PassMode p_pass_mode, uint32_t p_geometry_index);
void _fill_render_list(InstanceBase **p_cull_result, int p_cull_count, PassMode p_pass_mode, bool p_no_gi);
protected:
virtual void _render_scene(RID p_render_buffer, 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_gi_probe_cull_result, int p_gi_probe_cull_count, RID *p_decal_cull_result, int p_decal_cull_count, RID p_environment, 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);
virtual void _render_shadow(RID p_framebuffer, InstanceBase **p_cull_result, int p_cull_count, 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);
virtual void _render_material(const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, InstanceBase **p_cull_result, int p_cull_count, RID p_framebuffer, const Rect2i &p_region);
public:
virtual void set_time(double p_time, double p_step);
virtual bool free(RID p_rid);
RasterizerSceneHighEndRD(RasterizerStorageRD *p_storage);
~RasterizerSceneHighEndRD();
};
#endif // RASTERIZER_SCENE_HIGHEND_RD_H