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gi.cpp
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gi.cpp
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/**************************************************************************/
/* gi.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
#include "gi.h"
#include "core/config/project_settings.h"
#include "servers/rendering/renderer_rd/renderer_compositor_rd.h"
#include "servers/rendering/renderer_rd/renderer_scene_render_rd.h"
#include "servers/rendering/renderer_rd/storage_rd/material_storage.h"
#include "servers/rendering/renderer_rd/storage_rd/render_scene_buffers_rd.h"
#include "servers/rendering/renderer_rd/storage_rd/texture_storage.h"
#include "servers/rendering/rendering_server_default.h"
using namespace RendererRD;
const Vector3i GI::SDFGI::Cascade::DIRTY_ALL = Vector3i(0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF);
GI *GI::singleton = nullptr;
////////////////////////////////////////////////////////////////////////////////
// VOXEL GI STORAGE
RID GI::voxel_gi_allocate() {
return voxel_gi_owner.allocate_rid();
}
void GI::voxel_gi_free(RID p_voxel_gi) {
voxel_gi_allocate_data(p_voxel_gi, Transform3D(), AABB(), Vector3i(), Vector<uint8_t>(), Vector<uint8_t>(), Vector<uint8_t>(), Vector<int>()); //deallocate
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
voxel_gi->dependency.deleted_notify(p_voxel_gi);
voxel_gi_owner.free(p_voxel_gi);
}
void GI::voxel_gi_initialize(RID p_voxel_gi) {
voxel_gi_owner.initialize_rid(p_voxel_gi, VoxelGI());
}
void GI::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) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL(voxel_gi);
if (voxel_gi->octree_buffer.is_valid()) {
RD::get_singleton()->free(voxel_gi->octree_buffer);
RD::get_singleton()->free(voxel_gi->data_buffer);
if (voxel_gi->sdf_texture.is_valid()) {
RD::get_singleton()->free(voxel_gi->sdf_texture);
}
voxel_gi->sdf_texture = RID();
voxel_gi->octree_buffer = RID();
voxel_gi->data_buffer = RID();
voxel_gi->octree_buffer_size = 0;
voxel_gi->data_buffer_size = 0;
voxel_gi->cell_count = 0;
}
voxel_gi->to_cell_xform = p_to_cell_xform;
voxel_gi->bounds = p_aabb;
voxel_gi->octree_size = p_octree_size;
voxel_gi->level_counts = p_level_counts;
if (p_octree_cells.size()) {
ERR_FAIL_COND(p_octree_cells.size() % 32 != 0); //cells size must be a multiple of 32
uint32_t cell_count = p_octree_cells.size() / 32;
ERR_FAIL_COND(p_data_cells.size() != (int)cell_count * 16); //see that data size matches
voxel_gi->cell_count = cell_count;
voxel_gi->octree_buffer = RD::get_singleton()->storage_buffer_create(p_octree_cells.size(), p_octree_cells);
voxel_gi->octree_buffer_size = p_octree_cells.size();
voxel_gi->data_buffer = RD::get_singleton()->storage_buffer_create(p_data_cells.size(), p_data_cells);
voxel_gi->data_buffer_size = p_data_cells.size();
if (p_distance_field.size()) {
RD::TextureFormat tf;
tf.format = RD::DATA_FORMAT_R8_UNORM;
tf.width = voxel_gi->octree_size.x;
tf.height = voxel_gi->octree_size.y;
tf.depth = voxel_gi->octree_size.z;
tf.texture_type = RD::TEXTURE_TYPE_3D;
tf.usage_bits = RD::TEXTURE_USAGE_SAMPLING_BIT | RD::TEXTURE_USAGE_CAN_UPDATE_BIT | RD::TEXTURE_USAGE_CAN_COPY_FROM_BIT;
Vector<Vector<uint8_t>> s;
s.push_back(p_distance_field);
voxel_gi->sdf_texture = RD::get_singleton()->texture_create(tf, RD::TextureView(), s);
RD::get_singleton()->set_resource_name(voxel_gi->sdf_texture, "VoxelGI SDF Texture");
}
#if 0
{
RD::TextureFormat tf;
tf.format = RD::DATA_FORMAT_R8_UNORM;
tf.width = voxel_gi->octree_size.x;
tf.height = voxel_gi->octree_size.y;
tf.depth = voxel_gi->octree_size.z;
tf.type = RD::TEXTURE_TYPE_3D;
tf.usage_bits = RD::TEXTURE_USAGE_SAMPLING_BIT | RD::TEXTURE_USAGE_STORAGE_BIT | RD::TEXTURE_USAGE_CAN_COPY_TO_BIT;
tf.shareable_formats.push_back(RD::DATA_FORMAT_R8_UNORM);
tf.shareable_formats.push_back(RD::DATA_FORMAT_R8_UINT);
voxel_gi->sdf_texture = RD::get_singleton()->texture_create(tf, RD::TextureView());
RD::get_singleton()->set_resource_name(voxel_gi->sdf_texture, "VoxelGI SDF Texture");
}
RID shared_tex;
{
RD::TextureView tv;
tv.format_override = RD::DATA_FORMAT_R8_UINT;
shared_tex = RD::get_singleton()->texture_create_shared(tv, voxel_gi->sdf_texture);
}
//update SDF texture
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 1;
u.append_id(voxel_gi->octree_buffer);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 2;
u.append_id(voxel_gi->data_buffer);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 3;
u.append_id(shared_tex);
uniforms.push_back(u);
}
RID uniform_set = RD::get_singleton()->uniform_set_create(uniforms, voxel_gi_sdf_shader_version_shader, 0);
{
uint32_t push_constant[4] = { 0, 0, 0, 0 };
for (int i = 0; i < voxel_gi->level_counts.size() - 1; i++) {
push_constant[0] += voxel_gi->level_counts[i];
}
push_constant[1] = push_constant[0] + voxel_gi->level_counts[voxel_gi->level_counts.size() - 1];
print_line("offset: " + itos(push_constant[0]));
print_line("size: " + itos(push_constant[1]));
//create SDF
RD::ComputeListID compute_list = RD::get_singleton()->compute_list_begin();
RD::get_singleton()->compute_list_bind_compute_pipeline(compute_list, voxel_gi_sdf_shader_pipeline);
RD::get_singleton()->compute_list_bind_uniform_set(compute_list, uniform_set, 0);
RD::get_singleton()->compute_list_set_push_constant(compute_list, push_constant, sizeof(uint32_t) * 4);
RD::get_singleton()->compute_list_dispatch(compute_list, voxel_gi->octree_size.x / 4, voxel_gi->octree_size.y / 4, voxel_gi->octree_size.z / 4);
RD::get_singleton()->compute_list_end();
}
RD::get_singleton()->free(uniform_set);
RD::get_singleton()->free(shared_tex);
}
#endif
}
voxel_gi->version++;
voxel_gi->data_version++;
voxel_gi->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_AABB);
}
AABB GI::voxel_gi_get_bounds(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, AABB());
return voxel_gi->bounds;
}
Vector3i GI::voxel_gi_get_octree_size(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, Vector3i());
return voxel_gi->octree_size;
}
Vector<uint8_t> GI::voxel_gi_get_octree_cells(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, Vector<uint8_t>());
if (voxel_gi->octree_buffer.is_valid()) {
return RD::get_singleton()->buffer_get_data(voxel_gi->octree_buffer);
}
return Vector<uint8_t>();
}
Vector<uint8_t> GI::voxel_gi_get_data_cells(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, Vector<uint8_t>());
if (voxel_gi->data_buffer.is_valid()) {
return RD::get_singleton()->buffer_get_data(voxel_gi->data_buffer);
}
return Vector<uint8_t>();
}
Vector<uint8_t> GI::voxel_gi_get_distance_field(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, Vector<uint8_t>());
if (voxel_gi->data_buffer.is_valid()) {
return RD::get_singleton()->texture_get_data(voxel_gi->sdf_texture, 0);
}
return Vector<uint8_t>();
}
Vector<int> GI::voxel_gi_get_level_counts(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, Vector<int>());
return voxel_gi->level_counts;
}
Transform3D GI::voxel_gi_get_to_cell_xform(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, Transform3D());
return voxel_gi->to_cell_xform;
}
void GI::voxel_gi_set_dynamic_range(RID p_voxel_gi, float p_range) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL(voxel_gi);
voxel_gi->dynamic_range = p_range;
voxel_gi->version++;
}
float GI::voxel_gi_get_dynamic_range(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, 0);
return voxel_gi->dynamic_range;
}
void GI::voxel_gi_set_propagation(RID p_voxel_gi, float p_range) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL(voxel_gi);
voxel_gi->propagation = p_range;
voxel_gi->version++;
}
float GI::voxel_gi_get_propagation(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, 0);
return voxel_gi->propagation;
}
void GI::voxel_gi_set_energy(RID p_voxel_gi, float p_energy) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL(voxel_gi);
voxel_gi->energy = p_energy;
}
float GI::voxel_gi_get_energy(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, 0);
return voxel_gi->energy;
}
void GI::voxel_gi_set_baked_exposure_normalization(RID p_voxel_gi, float p_baked_exposure) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL(voxel_gi);
voxel_gi->baked_exposure = p_baked_exposure;
}
float GI::voxel_gi_get_baked_exposure_normalization(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, 0);
return voxel_gi->baked_exposure;
}
void GI::voxel_gi_set_bias(RID p_voxel_gi, float p_bias) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL(voxel_gi);
voxel_gi->bias = p_bias;
}
float GI::voxel_gi_get_bias(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, 0);
return voxel_gi->bias;
}
void GI::voxel_gi_set_normal_bias(RID p_voxel_gi, float p_normal_bias) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL(voxel_gi);
voxel_gi->normal_bias = p_normal_bias;
}
float GI::voxel_gi_get_normal_bias(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, 0);
return voxel_gi->normal_bias;
}
void GI::voxel_gi_set_interior(RID p_voxel_gi, bool p_enable) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL(voxel_gi);
voxel_gi->interior = p_enable;
}
void GI::voxel_gi_set_use_two_bounces(RID p_voxel_gi, bool p_enable) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL(voxel_gi);
voxel_gi->use_two_bounces = p_enable;
voxel_gi->version++;
}
bool GI::voxel_gi_is_using_two_bounces(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, false);
return voxel_gi->use_two_bounces;
}
bool GI::voxel_gi_is_interior(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, 0);
return voxel_gi->interior;
}
uint32_t GI::voxel_gi_get_version(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, 0);
return voxel_gi->version;
}
uint32_t GI::voxel_gi_get_data_version(RID p_voxel_gi) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, 0);
return voxel_gi->data_version;
}
RID GI::voxel_gi_get_octree_buffer(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, RID());
return voxel_gi->octree_buffer;
}
RID GI::voxel_gi_get_data_buffer(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, RID());
return voxel_gi->data_buffer;
}
RID GI::voxel_gi_get_sdf_texture(RID p_voxel_gi) {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, RID());
return voxel_gi->sdf_texture;
}
Dependency *GI::voxel_gi_get_dependency(RID p_voxel_gi) const {
VoxelGI *voxel_gi = voxel_gi_owner.get_or_null(p_voxel_gi);
ERR_FAIL_NULL_V(voxel_gi, nullptr);
return &voxel_gi->dependency;
}
void GI::sdfgi_reset() {
sdfgi_current_version++;
}
////////////////////////////////////////////////////////////////////////////////
// SDFGI
static RID create_clear_texture(const RD::TextureFormat &p_format, const String &p_name) {
RID texture = RD::get_singleton()->texture_create(p_format, RD::TextureView());
ERR_FAIL_COND_V_MSG(texture.is_null(), RID(), String("Cannot create texture: ") + p_name);
RD::get_singleton()->set_resource_name(texture, p_name);
RD::get_singleton()->texture_clear(texture, Color(0, 0, 0, 0), 0, p_format.mipmaps, 0, p_format.array_layers);
return texture;
}
void GI::SDFGI::create(RID p_env, const Vector3 &p_world_position, uint32_t p_requested_history_size, GI *p_gi) {
RendererRD::TextureStorage *texture_storage = RendererRD::TextureStorage::get_singleton();
RendererRD::MaterialStorage *material_storage = RendererRD::MaterialStorage::get_singleton();
gi = p_gi;
num_cascades = RendererSceneRenderRD::get_singleton()->environment_get_sdfgi_cascades(p_env);
min_cell_size = RendererSceneRenderRD::get_singleton()->environment_get_sdfgi_min_cell_size(p_env);
uses_occlusion = RendererSceneRenderRD::get_singleton()->environment_get_sdfgi_use_occlusion(p_env);
y_scale_mode = RendererSceneRenderRD::get_singleton()->environment_get_sdfgi_y_scale(p_env);
static const float y_scale[3] = { 2.0, 1.5, 1.0 };
y_mult = y_scale[y_scale_mode];
version = gi->sdfgi_current_version;
cascades.resize(num_cascades);
probe_axis_count = SDFGI::PROBE_DIVISOR + 1;
solid_cell_ratio = gi->sdfgi_solid_cell_ratio;
solid_cell_count = uint32_t(float(cascade_size * cascade_size * cascade_size) * solid_cell_ratio);
float base_cell_size = min_cell_size;
RD::TextureFormat tf_sdf;
tf_sdf.format = RD::DATA_FORMAT_R8_UNORM;
tf_sdf.width = cascade_size; // Always 64x64
tf_sdf.height = cascade_size;
tf_sdf.depth = cascade_size;
tf_sdf.texture_type = RD::TEXTURE_TYPE_3D;
tf_sdf.usage_bits = RD::TEXTURE_USAGE_SAMPLING_BIT | RD::TEXTURE_USAGE_STORAGE_BIT | RD::TEXTURE_USAGE_CAN_COPY_TO_BIT | RD::TEXTURE_USAGE_CAN_COPY_FROM_BIT;
{
RD::TextureFormat tf_render = tf_sdf;
tf_render.format = RD::DATA_FORMAT_R16_UINT;
render_albedo = create_clear_texture(tf_render, "SDFGI Render Albedo");
tf_render.format = RD::DATA_FORMAT_R32_UINT;
render_emission = create_clear_texture(tf_render, "SDFGI Render Emission");
render_emission_aniso = create_clear_texture(tf_render, "SDFGI Render Emission Aniso");
tf_render.format = RD::DATA_FORMAT_R8_UNORM; //at least its easy to visualize
for (int i = 0; i < 8; i++) {
render_occlusion[i] = create_clear_texture(tf_render, String("SDFGI Render Occlusion ") + itos(i));
}
tf_render.format = RD::DATA_FORMAT_R32_UINT;
render_geom_facing = create_clear_texture(tf_render, "SDFGI Render Geometry Facing");
tf_render.format = RD::DATA_FORMAT_R8G8B8A8_UINT;
render_sdf[0] = create_clear_texture(tf_render, "SDFGI Render SDF 0");
render_sdf[1] = create_clear_texture(tf_render, "SDFGI Render SDF 1");
tf_render.width /= 2;
tf_render.height /= 2;
tf_render.depth /= 2;
render_sdf_half[0] = create_clear_texture(tf_render, "SDFGI Render SDF Half 0");
render_sdf_half[1] = create_clear_texture(tf_render, "SDFGI Render SDF Half 1");
}
RD::TextureFormat tf_occlusion = tf_sdf;
tf_occlusion.format = RD::DATA_FORMAT_R16_UINT;
tf_occlusion.shareable_formats.push_back(RD::DATA_FORMAT_R16_UINT);
tf_occlusion.shareable_formats.push_back(RD::DATA_FORMAT_R4G4B4A4_UNORM_PACK16);
tf_occlusion.depth *= cascades.size(); //use depth for occlusion slices
tf_occlusion.width *= 2; //use width for the other half
RD::TextureFormat tf_light = tf_sdf;
tf_light.format = RD::DATA_FORMAT_R32_UINT;
tf_light.shareable_formats.push_back(RD::DATA_FORMAT_R32_UINT);
tf_light.shareable_formats.push_back(RD::DATA_FORMAT_E5B9G9R9_UFLOAT_PACK32);
RD::TextureFormat tf_aniso0 = tf_sdf;
tf_aniso0.format = RD::DATA_FORMAT_R8G8B8A8_UNORM;
RD::TextureFormat tf_aniso1 = tf_sdf;
tf_aniso1.format = RD::DATA_FORMAT_R8G8_UNORM;
int passes = nearest_shift(cascade_size) - 1;
//store lightprobe SH
RD::TextureFormat tf_probes;
tf_probes.format = RD::DATA_FORMAT_R16G16B16A16_SFLOAT;
tf_probes.width = probe_axis_count * probe_axis_count;
tf_probes.height = probe_axis_count * SDFGI::SH_SIZE;
tf_probes.usage_bits = RD::TEXTURE_USAGE_SAMPLING_BIT | RD::TEXTURE_USAGE_STORAGE_BIT | RD::TEXTURE_USAGE_CAN_COPY_TO_BIT | RD::TEXTURE_USAGE_CAN_COPY_FROM_BIT;
tf_probes.texture_type = RD::TEXTURE_TYPE_2D_ARRAY;
history_size = p_requested_history_size;
RD::TextureFormat tf_probe_history = tf_probes;
tf_probe_history.format = RD::DATA_FORMAT_R16G16B16A16_SINT; //signed integer because SH are signed
tf_probe_history.array_layers = history_size;
RD::TextureFormat tf_probe_average = tf_probes;
tf_probe_average.format = RD::DATA_FORMAT_R32G32B32A32_SINT; //signed integer because SH are signed
tf_probe_average.texture_type = RD::TEXTURE_TYPE_2D;
lightprobe_history_scroll = create_clear_texture(tf_probe_history, "SDFGI LightProbe History Scroll");
lightprobe_average_scroll = create_clear_texture(tf_probe_average, "SDFGI LightProbe Average Scroll");
{
//octahedral lightprobes
RD::TextureFormat tf_octprobes = tf_probes;
tf_octprobes.array_layers = cascades.size() * 2;
tf_octprobes.format = RD::DATA_FORMAT_R32_UINT; //pack well with RGBE
tf_octprobes.width = probe_axis_count * probe_axis_count * (SDFGI::LIGHTPROBE_OCT_SIZE + 2);
tf_octprobes.height = probe_axis_count * (SDFGI::LIGHTPROBE_OCT_SIZE + 2);
tf_octprobes.shareable_formats.push_back(RD::DATA_FORMAT_R32_UINT);
tf_octprobes.shareable_formats.push_back(RD::DATA_FORMAT_E5B9G9R9_UFLOAT_PACK32);
//lightprobe texture is an octahedral texture
lightprobe_data = create_clear_texture(tf_octprobes, "SDFGI LightProbe Data");
RD::TextureView tv;
tv.format_override = RD::DATA_FORMAT_E5B9G9R9_UFLOAT_PACK32;
lightprobe_texture = RD::get_singleton()->texture_create_shared(tv, lightprobe_data);
//texture handling ambient data, to integrate with volumetric foc
RD::TextureFormat tf_ambient = tf_probes;
tf_ambient.array_layers = cascades.size();
tf_ambient.format = RD::DATA_FORMAT_R16G16B16A16_SFLOAT; //pack well with RGBE
tf_ambient.width = probe_axis_count * probe_axis_count;
tf_ambient.height = probe_axis_count;
tf_ambient.texture_type = RD::TEXTURE_TYPE_2D_ARRAY;
//lightprobe texture is an octahedral texture
ambient_texture = create_clear_texture(tf_ambient, "SDFGI Ambient Texture");
}
cascades_ubo = RD::get_singleton()->uniform_buffer_create(sizeof(SDFGI::Cascade::UBO) * SDFGI::MAX_CASCADES);
occlusion_data = create_clear_texture(tf_occlusion, "SDFGI Occlusion Data");
{
RD::TextureView tv;
tv.format_override = RD::DATA_FORMAT_R4G4B4A4_UNORM_PACK16;
occlusion_texture = RD::get_singleton()->texture_create_shared(tv, occlusion_data);
}
for (SDFGI::Cascade &cascade : cascades) {
/* 3D Textures */
cascade.sdf_tex = create_clear_texture(tf_sdf, "SDFGI Cascade SDF Texture");
cascade.light_data = create_clear_texture(tf_light, "SDFGI Cascade Light Data");
cascade.light_aniso_0_tex = create_clear_texture(tf_aniso0, "SDFGI Cascade Light Aniso 0 Texture");
cascade.light_aniso_1_tex = create_clear_texture(tf_aniso1, "SDFGI Cascade Light Aniso 1 Texture");
{
RD::TextureView tv;
tv.format_override = RD::DATA_FORMAT_E5B9G9R9_UFLOAT_PACK32;
cascade.light_tex = RD::get_singleton()->texture_create_shared(tv, cascade.light_data);
}
cascade.cell_size = base_cell_size;
Vector3 world_position = p_world_position;
world_position.y *= y_mult;
int32_t probe_cells = cascade_size / SDFGI::PROBE_DIVISOR;
Vector3 probe_size = Vector3(1, 1, 1) * cascade.cell_size * probe_cells;
Vector3i probe_pos = Vector3i((world_position / probe_size + Vector3(0.5, 0.5, 0.5)).floor());
cascade.position = probe_pos * probe_cells;
cascade.dirty_regions = SDFGI::Cascade::DIRTY_ALL;
base_cell_size *= 2.0;
/* Probe History */
cascade.lightprobe_history_tex = RD::get_singleton()->texture_create(tf_probe_history, RD::TextureView());
RD::get_singleton()->set_resource_name(cascade.lightprobe_history_tex, "SDFGI Cascade LightProbe History Texture");
RD::get_singleton()->texture_clear(cascade.lightprobe_history_tex, Color(0, 0, 0, 0), 0, 1, 0, tf_probe_history.array_layers); //needs to be cleared for average to work
cascade.lightprobe_average_tex = RD::get_singleton()->texture_create(tf_probe_average, RD::TextureView());
RD::get_singleton()->set_resource_name(cascade.lightprobe_average_tex, "SDFGI Cascade LightProbe Average Texture");
RD::get_singleton()->texture_clear(cascade.lightprobe_average_tex, Color(0, 0, 0, 0), 0, 1, 0, 1); //needs to be cleared for average to work
/* Buffers */
cascade.solid_cell_buffer = RD::get_singleton()->storage_buffer_create(sizeof(SDFGI::Cascade::SolidCell) * solid_cell_count);
cascade.solid_cell_dispatch_buffer_storage = RD::get_singleton()->storage_buffer_create(sizeof(uint32_t) * 4, Vector<uint8_t>());
cascade.solid_cell_dispatch_buffer_call = RD::get_singleton()->storage_buffer_create(sizeof(uint32_t) * 4, Vector<uint8_t>(), RD::STORAGE_BUFFER_USAGE_DISPATCH_INDIRECT);
cascade.lights_buffer = RD::get_singleton()->storage_buffer_create(sizeof(SDFGIShader::Light) * MAX(SDFGI::MAX_STATIC_LIGHTS, SDFGI::MAX_DYNAMIC_LIGHTS));
{
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 1;
u.append_id(render_sdf[(passes & 1) ? 1 : 0]); //if passes are even, we read from buffer 0, else we read from buffer 1
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 2;
u.append_id(render_albedo);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 3;
for (int j = 0; j < 8; j++) {
u.append_id(render_occlusion[j]);
}
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 4;
u.append_id(render_emission);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 5;
u.append_id(render_emission_aniso);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 6;
u.append_id(render_geom_facing);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 7;
u.append_id(cascade.sdf_tex);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 8;
u.append_id(occlusion_data);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 10;
u.append_id(cascade.solid_cell_dispatch_buffer_storage);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 11;
u.append_id(cascade.solid_cell_buffer);
uniforms.push_back(u);
}
cascade.sdf_store_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_STORE), 0);
}
{
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 1;
u.append_id(render_albedo);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 2;
u.append_id(render_geom_facing);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 3;
u.append_id(render_emission);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 4;
u.append_id(render_emission_aniso);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 5;
u.append_id(cascade.solid_cell_dispatch_buffer_storage);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 6;
u.append_id(cascade.solid_cell_buffer);
uniforms.push_back(u);
}
cascade.scroll_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_SCROLL), 0);
}
{
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 1;
for (int j = 0; j < 8; j++) {
u.append_id(render_occlusion[j]);
}
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 2;
u.append_id(occlusion_data);
uniforms.push_back(u);
}
cascade.scroll_occlusion_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_SCROLL_OCCLUSION), 0);
}
}
//direct light
for (SDFGI::Cascade &cascade : cascades) {
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.binding = 1;
u.uniform_type = RD::UNIFORM_TYPE_TEXTURE;
for (uint32_t j = 0; j < SDFGI::MAX_CASCADES; j++) {
if (j < cascades.size()) {
u.append_id(cascades[j].sdf_tex);
} else {
u.append_id(texture_storage->texture_rd_get_default(RendererRD::TextureStorage::DEFAULT_RD_TEXTURE_3D_WHITE));
}
}
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 2;
u.uniform_type = RD::UNIFORM_TYPE_SAMPLER;
u.append_id(material_storage->sampler_rd_get_default(RS::CANVAS_ITEM_TEXTURE_FILTER_LINEAR, RS::CANVAS_ITEM_TEXTURE_REPEAT_DISABLED));
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 3;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.append_id(cascade.solid_cell_dispatch_buffer_storage);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 4;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.append_id(cascade.solid_cell_buffer);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 5;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.append_id(cascade.light_data);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 6;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.append_id(cascade.light_aniso_0_tex);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 7;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.append_id(cascade.light_aniso_1_tex);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 8;
u.uniform_type = RD::UNIFORM_TYPE_UNIFORM_BUFFER;
u.append_id(cascades_ubo);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 9;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.append_id(cascade.lights_buffer);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 10;
u.uniform_type = RD::UNIFORM_TYPE_TEXTURE;
u.append_id(lightprobe_texture);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 11;
u.uniform_type = RD::UNIFORM_TYPE_TEXTURE;
u.append_id(occlusion_texture);
uniforms.push_back(u);
}
cascade.sdf_direct_light_static_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.direct_light.version_get_shader(gi->sdfgi_shader.direct_light_shader, SDFGIShader::DIRECT_LIGHT_MODE_STATIC), 0);
cascade.sdf_direct_light_dynamic_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.direct_light.version_get_shader(gi->sdfgi_shader.direct_light_shader, SDFGIShader::DIRECT_LIGHT_MODE_DYNAMIC), 0);
}
//preprocess initialize uniform set
{
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 1;
u.append_id(render_albedo);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 2;
u.append_id(render_sdf[0]);
uniforms.push_back(u);
}
sdf_initialize_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_JUMP_FLOOD_INITIALIZE), 0);
}
{
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 1;
u.append_id(render_albedo);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 2;
u.append_id(render_sdf_half[0]);
uniforms.push_back(u);
}
sdf_initialize_half_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_JUMP_FLOOD_INITIALIZE_HALF), 0);
}
//jump flood uniform set
{
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 1;
u.append_id(render_sdf[0]);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 2;
u.append_id(render_sdf[1]);
uniforms.push_back(u);
}
jump_flood_uniform_set[0] = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_JUMP_FLOOD), 0);
RID aux0 = uniforms.write[0].get_id(0);
RID aux1 = uniforms.write[1].get_id(0);
uniforms.write[0].set_id(0, aux1);
uniforms.write[1].set_id(0, aux0);
jump_flood_uniform_set[1] = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_JUMP_FLOOD), 0);
}
//jump flood half uniform set
{
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 1;
u.append_id(render_sdf_half[0]);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 2;
u.append_id(render_sdf_half[1]);
uniforms.push_back(u);
}
jump_flood_half_uniform_set[0] = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_JUMP_FLOOD), 0);
RID aux0 = uniforms.write[0].get_id(0);
RID aux1 = uniforms.write[1].get_id(0);
uniforms.write[0].set_id(0, aux1);
uniforms.write[1].set_id(0, aux0);
jump_flood_half_uniform_set[1] = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_JUMP_FLOOD), 0);
}
//upscale half size sdf
{
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 1;
u.append_id(render_albedo);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 2;
u.append_id(render_sdf_half[(passes & 1) ? 0 : 1]); //reverse pass order because half size
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 3;
u.append_id(render_sdf[(passes & 1) ? 0 : 1]); //reverse pass order because it needs an extra JFA pass
uniforms.push_back(u);
}
upscale_jfa_uniform_set_index = (passes & 1) ? 0 : 1;
sdf_upscale_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_JUMP_FLOOD_UPSCALE), 0);
}
//occlusion uniform set
{
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 1;
u.append_id(render_albedo);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 2;
for (int i = 0; i < 8; i++) {
u.append_id(render_occlusion[i]);
}
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
u.binding = 3;
u.append_id(render_geom_facing);
uniforms.push_back(u);
}
occlusion_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, gi->sdfgi_shader.preprocess.version_get_shader(gi->sdfgi_shader.preprocess_shader, SDFGIShader::PRE_PROCESS_OCCLUSION), 0);
}
for (uint32_t i = 0; i < cascades.size(); i++) {
//integrate uniform
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.binding = 1;
u.uniform_type = RD::UNIFORM_TYPE_TEXTURE;
for (uint32_t j = 0; j < SDFGI::MAX_CASCADES; j++) {
if (j < cascades.size()) {
u.append_id(cascades[j].sdf_tex);
} else {
u.append_id(texture_storage->texture_rd_get_default(RendererRD::TextureStorage::DEFAULT_RD_TEXTURE_3D_WHITE));
}
}
uniforms.push_back(u);
}
{
RD::Uniform u;
u.binding = 2;