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-rw-r--r--servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp7
-rw-r--r--servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp27
-rw-r--r--servers/rendering/renderer_rd/renderer_compositor_rd.h1
-rw-r--r--servers/rendering/renderer_rd/shader_rd.cpp4
-rw-r--r--servers/rendering/renderer_scene_cull.cpp16
-rw-r--r--servers/rendering/renderer_scene_occlusion_cull.h3
-rw-r--r--servers/rendering/renderer_thread_pool.cpp42
-rw-r--r--servers/rendering/renderer_thread_pool.h45
-rw-r--r--servers/rendering/renderer_viewport.cpp2
9 files changed, 37 insertions, 110 deletions
diff --git a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
index d92f37e21e..4a55a04cd4 100644
--- a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
+++ b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
@@ -775,7 +775,7 @@ void RenderForwardClustered::_render_list(RenderingDevice::DrawListID p_draw_lis
void RenderForwardClustered::_render_list_thread_function(uint32_t p_thread, RenderListParameters *p_params) {
uint32_t render_total = p_params->element_count;
- uint32_t total_threads = RendererThreadPool::singleton->thread_work_pool.get_thread_count();
+ uint32_t total_threads = WorkerThreadPool::get_singleton()->get_thread_count();
uint32_t render_from = p_thread * render_total / total_threads;
uint32_t render_to = (p_thread + 1 == total_threads) ? render_total : ((p_thread + 1) * render_total / total_threads);
_render_list(thread_draw_lists[p_thread], p_params->framebuffer_format, p_params, render_from, render_to);
@@ -787,9 +787,10 @@ void RenderForwardClustered::_render_list_with_threads(RenderListParameters *p_p
if ((uint32_t)p_params->element_count > render_list_thread_threshold && false) { // secondary command buffers need more testing at this time
//multi threaded
- thread_draw_lists.resize(RendererThreadPool::singleton->thread_work_pool.get_thread_count());
+ thread_draw_lists.resize(WorkerThreadPool::get_singleton()->get_thread_count());
RD::get_singleton()->draw_list_begin_split(p_framebuffer, thread_draw_lists.size(), thread_draw_lists.ptr(), p_initial_color_action, p_final_color_action, p_initial_depth_action, p_final_depth_action, p_clear_color_values, p_clear_depth, p_clear_stencil, p_region, p_storage_textures);
- RendererThreadPool::singleton->thread_work_pool.do_work(thread_draw_lists.size(), this, &RenderForwardClustered::_render_list_thread_function, p_params);
+ WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &RenderForwardClustered::_render_list_thread_function, p_params, thread_draw_lists.size(), -1, true, SNAME("ForwardClusteredRenderList"));
+ WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
RD::get_singleton()->draw_list_end(p_params->barrier);
} else {
//single threaded
diff --git a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
index a07955d2d1..0ca71080fc 100644
--- a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
+++ b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
@@ -758,9 +758,12 @@ void RenderForwardMobile::_render_scene(RenderDataRD *p_render_data, const Color
if ((uint32_t)render_list_params.element_count > render_list_thread_threshold && false) {
// secondary command buffers need more testing at this time
//multi threaded
- thread_draw_lists.resize(RendererThreadPool::singleton->thread_work_pool.get_thread_count());
+ thread_draw_lists.resize(WorkerThreadPool::get_singleton()->get_thread_count());
RD::get_singleton()->draw_list_begin_split(framebuffer, thread_draw_lists.size(), thread_draw_lists.ptr(), keep_color ? RD::INITIAL_ACTION_KEEP : RD::INITIAL_ACTION_CLEAR, can_continue_color ? RD::FINAL_ACTION_CONTINUE : RD::FINAL_ACTION_READ, RD::INITIAL_ACTION_CLEAR, can_continue_depth ? RD::FINAL_ACTION_CONTINUE : RD::FINAL_ACTION_READ, c, 1.0, 0);
- RendererThreadPool::singleton->thread_work_pool.do_work(thread_draw_lists.size(), this, &RenderForwardMobile::_render_list_thread_function, &render_list_params);
+
+ WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &RenderForwardMobile::_render_list_thread_function, &render_list_params, thread_draw_lists.size(), -1, true, SNAME("ForwardMobileRenderList"));
+ WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
+
} else {
//single threaded
RD::DrawListID draw_list = RD::get_singleton()->draw_list_begin(framebuffer, keep_color ? RD::INITIAL_ACTION_KEEP : RD::INITIAL_ACTION_CLEAR, can_continue_color ? RD::FINAL_ACTION_CONTINUE : RD::FINAL_ACTION_READ, RD::INITIAL_ACTION_CLEAR, can_continue_depth ? RD::FINAL_ACTION_CONTINUE : RD::FINAL_ACTION_READ, c, 1.0, 0);
@@ -822,10 +825,12 @@ void RenderForwardMobile::_render_scene(RenderDataRD *p_render_data, const Color
if ((uint32_t)render_list_params.element_count > render_list_thread_threshold && false) {
// secondary command buffers need more testing at this time
//multi threaded
- thread_draw_lists.resize(RendererThreadPool::singleton->thread_work_pool.get_thread_count());
+ thread_draw_lists.resize(WorkerThreadPool::get_singleton()->get_thread_count());
RD::get_singleton()->draw_list_switch_to_next_pass_split(thread_draw_lists.size(), thread_draw_lists.ptr());
render_list_params.subpass = RD::get_singleton()->draw_list_get_current_pass();
- RendererThreadPool::singleton->thread_work_pool.do_work(thread_draw_lists.size(), this, &RenderForwardMobile::_render_list_thread_function, &render_list_params);
+ WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &RenderForwardMobile::_render_list_thread_function, &render_list_params, thread_draw_lists.size(), -1, true, SNAME("ForwardMobileRenderSubpass"));
+ WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
+
} else {
//single threaded
RD::DrawListID draw_list = RD::get_singleton()->draw_list_switch_to_next_pass();
@@ -859,9 +864,11 @@ void RenderForwardMobile::_render_scene(RenderDataRD *p_render_data, const Color
if ((uint32_t)render_list_params.element_count > render_list_thread_threshold && false) {
// secondary command buffers need more testing at this time
//multi threaded
- thread_draw_lists.resize(RendererThreadPool::singleton->thread_work_pool.get_thread_count());
+ thread_draw_lists.resize(WorkerThreadPool::get_singleton()->get_thread_count());
RD::get_singleton()->draw_list_begin_split(framebuffer, thread_draw_lists.size(), thread_draw_lists.ptr(), can_continue_color ? RD::INITIAL_ACTION_CONTINUE : RD::INITIAL_ACTION_KEEP, RD::FINAL_ACTION_READ, can_continue_depth ? RD::INITIAL_ACTION_CONTINUE : RD::INITIAL_ACTION_KEEP, RD::FINAL_ACTION_READ);
- RendererThreadPool::singleton->thread_work_pool.do_work(thread_draw_lists.size(), this, &RenderForwardMobile::_render_list_thread_function, &render_list_params);
+ WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &RenderForwardMobile::_render_list_thread_function, &render_list_params, thread_draw_lists.size(), -1, true, SNAME("ForwardMobileRenderSubpass"));
+ WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
+
RD::get_singleton()->draw_list_end(RD::BARRIER_MASK_ALL);
} else {
//single threaded
@@ -1771,7 +1778,7 @@ void RenderForwardMobile::_render_list(RenderingDevice::DrawListID p_draw_list,
void RenderForwardMobile::_render_list_thread_function(uint32_t p_thread, RenderListParameters *p_params) {
uint32_t render_total = p_params->element_count;
- uint32_t total_threads = RendererThreadPool::singleton->thread_work_pool.get_thread_count();
+ uint32_t total_threads = WorkerThreadPool::get_singleton()->get_thread_count();
uint32_t render_from = p_thread * render_total / total_threads;
uint32_t render_to = (p_thread + 1 == total_threads) ? render_total : ((p_thread + 1) * render_total / total_threads);
_render_list(thread_draw_lists[p_thread], p_params->framebuffer_format, p_params, render_from, render_to);
@@ -1783,9 +1790,11 @@ void RenderForwardMobile::_render_list_with_threads(RenderListParameters *p_para
if ((uint32_t)p_params->element_count > render_list_thread_threshold && false) { // secondary command buffers need more testing at this time
//multi threaded
- thread_draw_lists.resize(RendererThreadPool::singleton->thread_work_pool.get_thread_count());
+ thread_draw_lists.resize(WorkerThreadPool::get_singleton()->get_thread_count());
RD::get_singleton()->draw_list_begin_split(p_framebuffer, thread_draw_lists.size(), thread_draw_lists.ptr(), p_initial_color_action, p_final_color_action, p_initial_depth_action, p_final_depth_action, p_clear_color_values, p_clear_depth, p_clear_stencil, p_region, p_storage_textures);
- RendererThreadPool::singleton->thread_work_pool.do_work(thread_draw_lists.size(), this, &RenderForwardMobile::_render_list_thread_function, p_params);
+ WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &RenderForwardMobile::_render_list_thread_function, p_params, thread_draw_lists.size(), -1, true, SNAME("ForwardMobileRenderSubpass"));
+ WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
+
RD::get_singleton()->draw_list_end(p_params->barrier);
} else {
//single threaded
diff --git a/servers/rendering/renderer_rd/renderer_compositor_rd.h b/servers/rendering/renderer_rd/renderer_compositor_rd.h
index 1d3a5585e1..564c26bfe4 100644
--- a/servers/rendering/renderer_rd/renderer_compositor_rd.h
+++ b/servers/rendering/renderer_rd/renderer_compositor_rd.h
@@ -32,7 +32,6 @@
#define RENDERER_COMPOSITOR_RD_H
#include "core/os/os.h"
-#include "core/templates/thread_work_pool.h"
#include "servers/rendering/renderer_compositor.h"
#include "servers/rendering/renderer_rd/effects_rd.h"
#include "servers/rendering/renderer_rd/environment/fog.h"
diff --git a/servers/rendering/renderer_rd/shader_rd.cpp b/servers/rendering/renderer_rd/shader_rd.cpp
index 176465234e..c9b6d09d4c 100644
--- a/servers/rendering/renderer_rd/shader_rd.cpp
+++ b/servers/rendering/renderer_rd/shader_rd.cpp
@@ -476,7 +476,9 @@ void ShaderRD::_compile_version(Version *p_version) {
#if 1
- RendererThreadPool::singleton->thread_work_pool.do_work(variant_defines.size(), this, &ShaderRD::_compile_variant, p_version);
+ WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &ShaderRD::_compile_variant, p_version, variant_defines.size(), -1, true, SNAME("ShaderCompilation"));
+ WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
+
#else
for (int i = 0; i < variant_defines.size(); i++) {
_compile_variant(i, p_version);
diff --git a/servers/rendering/renderer_scene_cull.cpp b/servers/rendering/renderer_scene_cull.cpp
index ce08c27ed5..7631be3669 100644
--- a/servers/rendering/renderer_scene_cull.cpp
+++ b/servers/rendering/renderer_scene_cull.cpp
@@ -2518,14 +2518,14 @@ void RendererSceneCull::render_camera(RID p_render_buffers, RID p_camera, RID p_
RENDER_TIMESTAMP("Update Occlusion Buffer")
// For now just cull on the first camera
- RendererSceneOcclusionCull::get_singleton()->buffer_update(p_viewport, camera_data.main_transform, camera_data.main_projection, camera_data.is_orthogonal, RendererThreadPool::singleton->thread_work_pool);
+ RendererSceneOcclusionCull::get_singleton()->buffer_update(p_viewport, camera_data.main_transform, camera_data.main_projection, camera_data.is_orthogonal);
_render_scene(&camera_data, p_render_buffers, environment, camera->effects, camera->visible_layers, p_scenario, p_viewport, p_shadow_atlas, RID(), -1, p_screen_mesh_lod_threshold, true, r_render_info);
#endif
}
void RendererSceneCull::_visibility_cull_threaded(uint32_t p_thread, VisibilityCullData *cull_data) {
- uint32_t total_threads = RendererThreadPool::singleton->thread_work_pool.get_thread_count();
+ uint32_t total_threads = WorkerThreadPool::get_singleton()->get_thread_count();
uint32_t bin_from = p_thread * cull_data->cull_count / total_threads;
uint32_t bin_to = (p_thread + 1 == total_threads) ? cull_data->cull_count : ((p_thread + 1) * cull_data->cull_count / total_threads);
@@ -2622,7 +2622,7 @@ bool RendererSceneCull::_visibility_parent_check(const CullData &p_cull_data, co
void RendererSceneCull::_scene_cull_threaded(uint32_t p_thread, CullData *cull_data) {
uint32_t cull_total = cull_data->scenario->instance_data.size();
- uint32_t total_threads = RendererThreadPool::singleton->thread_work_pool.get_thread_count();
+ uint32_t total_threads = WorkerThreadPool::get_singleton()->get_thread_count();
uint32_t cull_from = p_thread * cull_total / total_threads;
uint32_t cull_to = (p_thread + 1 == total_threads) ? cull_total : ((p_thread + 1) * cull_total / total_threads);
@@ -2919,7 +2919,8 @@ void RendererSceneCull::_render_scene(const RendererSceneRender::CameraData *p_c
}
if (visibility_cull_data.cull_count > thread_cull_threshold) {
- RendererThreadPool::singleton->thread_work_pool.do_work(RendererThreadPool::singleton->thread_work_pool.get_thread_count(), this, &RendererSceneCull::_visibility_cull_threaded, &visibility_cull_data);
+ WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &RendererSceneCull::_visibility_cull_threaded, &visibility_cull_data, WorkerThreadPool::get_singleton()->get_thread_count(), -1, true, SNAME("VisibilityCullInstances"));
+ WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
} else {
_visibility_cull(visibility_cull_data, visibility_cull_data.cull_offset, visibility_cull_data.cull_offset + visibility_cull_data.cull_count);
}
@@ -3024,7 +3025,8 @@ void RendererSceneCull::_render_scene(const RendererSceneRender::CameraData *p_c
scene_cull_result_threads[i].clear();
}
- RendererThreadPool::singleton->thread_work_pool.do_work(scene_cull_result_threads.size(), this, &RendererSceneCull::_scene_cull_threaded, &cull_data);
+ WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &RendererSceneCull::_scene_cull_threaded, &cull_data, scene_cull_result_threads.size(), -1, true, SNAME("RenderCullInstances"));
+ WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
for (uint32_t i = 0; i < scene_cull_result_threads.size(); i++) {
scene_cull_result.append_from(scene_cull_result_threads[i]);
@@ -4030,14 +4032,14 @@ RendererSceneCull::RendererSceneCull() {
}
scene_cull_result.init(&rid_cull_page_pool, &geometry_instance_cull_page_pool, &instance_cull_page_pool);
- scene_cull_result_threads.resize(RendererThreadPool::singleton->thread_work_pool.get_thread_count());
+ scene_cull_result_threads.resize(WorkerThreadPool::get_singleton()->get_thread_count());
for (uint32_t i = 0; i < scene_cull_result_threads.size(); i++) {
scene_cull_result_threads[i].init(&rid_cull_page_pool, &geometry_instance_cull_page_pool, &instance_cull_page_pool);
}
indexer_update_iterations = GLOBAL_GET("rendering/limits/spatial_indexer/update_iterations_per_frame");
thread_cull_threshold = GLOBAL_GET("rendering/limits/spatial_indexer/threaded_cull_minimum_instances");
- thread_cull_threshold = MAX(thread_cull_threshold, (uint32_t)RendererThreadPool::singleton->thread_work_pool.get_thread_count()); //make sure there is at least one thread per CPU
+ thread_cull_threshold = MAX(thread_cull_threshold, (uint32_t)WorkerThreadPool::get_singleton()->get_thread_count()); //make sure there is at least one thread per CPU
taa_jitter_array.resize(TAA_JITTER_COUNT);
for (int i = 0; i < TAA_JITTER_COUNT; i++) {
diff --git a/servers/rendering/renderer_scene_occlusion_cull.h b/servers/rendering/renderer_scene_occlusion_cull.h
index e25aa11e6b..0d466e8a32 100644
--- a/servers/rendering/renderer_scene_occlusion_cull.h
+++ b/servers/rendering/renderer_scene_occlusion_cull.h
@@ -183,7 +183,8 @@ public:
}
virtual void buffer_set_scenario(RID p_buffer, RID p_scenario) { _print_warning(); }
virtual void buffer_set_size(RID p_buffer, const Vector2i &p_size) { _print_warning(); }
- virtual void buffer_update(RID p_buffer, const Transform3D &p_cam_transform, const Projection &p_cam_projection, bool p_cam_orthogonal, ThreadWorkPool &p_thread_pool) {}
+ virtual void buffer_update(RID p_buffer, const Transform3D &p_cam_transform, const Projection &p_cam_projection, bool p_cam_orthogonal) {}
+
virtual RID buffer_get_debug_texture(RID p_buffer) {
_print_warning();
return RID();
diff --git a/servers/rendering/renderer_thread_pool.cpp b/servers/rendering/renderer_thread_pool.cpp
deleted file mode 100644
index ddf1d1bd00..0000000000
--- a/servers/rendering/renderer_thread_pool.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-/*************************************************************************/
-/* renderer_thread_pool.cpp */
-/*************************************************************************/
-/* 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. */
-/*************************************************************************/
-
-#include "renderer_thread_pool.h"
-
-RendererThreadPool *RendererThreadPool::singleton = nullptr;
-
-RendererThreadPool::RendererThreadPool() {
- singleton = this;
- thread_work_pool.init();
-}
-
-RendererThreadPool::~RendererThreadPool() {
- thread_work_pool.finish();
-}
diff --git a/servers/rendering/renderer_thread_pool.h b/servers/rendering/renderer_thread_pool.h
deleted file mode 100644
index 0155c17e05..0000000000
--- a/servers/rendering/renderer_thread_pool.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*************************************************************************/
-/* renderer_thread_pool.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 RENDERER_THREAD_POOL_H
-#define RENDERER_THREAD_POOL_H
-
-#include "core/templates/thread_work_pool.h"
-
-class RendererThreadPool {
-public:
- ThreadWorkPool thread_work_pool;
-
- static RendererThreadPool *singleton;
- RendererThreadPool();
- ~RendererThreadPool();
-};
-
-#endif // RENDERER_THREAD_POOL_H
diff --git a/servers/rendering/renderer_viewport.cpp b/servers/rendering/renderer_viewport.cpp
index 7c9b2567d6..0e26de8bcb 100644
--- a/servers/rendering/renderer_viewport.cpp
+++ b/servers/rendering/renderer_viewport.cpp
@@ -154,7 +154,7 @@ void RendererViewport::_draw_3d(Viewport *p_viewport) {
if (p_viewport->use_occlusion_culling) {
if (p_viewport->occlusion_buffer_dirty) {
float aspect = p_viewport->size.aspect();
- int max_size = occlusion_rays_per_thread * RendererThreadPool::singleton->thread_work_pool.get_thread_count();
+ int max_size = occlusion_rays_per_thread * WorkerThreadPool::get_singleton()->get_thread_count();
int viewport_size = p_viewport->size.width * p_viewport->size.height;
max_size = CLAMP(max_size, viewport_size / (32 * 32), viewport_size / (2 * 2)); // At least one depth pixel for every 16x16 region. At most one depth pixel for every 2x2 region.