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/**************************************************************************/
/* taa.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 "taa.h"
#include "servers/rendering/renderer_rd/effects/copy_effects.h"
#include "servers/rendering/renderer_rd/storage_rd/material_storage.h"
#include "servers/rendering/renderer_rd/uniform_set_cache_rd.h"
using namespace RendererRD;
TAA::TAA() {
Vector<String> taa_modes;
taa_modes.push_back("\n#define MODE_TAA_RESOLVE");
taa_shader.initialize(taa_modes);
shader_version = taa_shader.version_create();
pipeline = RD::get_singleton()->compute_pipeline_create(taa_shader.version_get_shader(shader_version, 0));
}
TAA::~TAA() {
taa_shader.version_free(shader_version);
}
void TAA::msaa_resolve(Ref<RenderSceneBuffersRD> p_render_buffers) {
if (!p_render_buffers->has_velocity_buffer(true)) {
// nothing to resolve
return;
}
for (uint32_t v = 0; v < p_render_buffers->get_view_count(); v++) {
RID velocity_buffer_msaa = p_render_buffers->get_velocity_buffer(true, v);
RID velocity_buffer = p_render_buffers->get_velocity_buffer(false, v);
RD::get_singleton()->texture_resolve_multisample(velocity_buffer_msaa, velocity_buffer);
}
}
void TAA::resolve(RID p_frame, RID p_temp, RID p_depth, RID p_velocity, RID p_prev_velocity, RID p_history, Size2 p_resolution, float p_z_near, float p_z_far) {
UniformSetCacheRD *uniform_set_cache = UniformSetCacheRD::get_singleton();
ERR_FAIL_NULL(uniform_set_cache);
MaterialStorage *material_storage = MaterialStorage::get_singleton();
ERR_FAIL_NULL(material_storage);
RID shader = taa_shader.version_get_shader(shader_version, 0);
ERR_FAIL_COND(shader.is_null());
RID default_sampler = material_storage->sampler_rd_get_default(RS::CANVAS_ITEM_TEXTURE_FILTER_LINEAR, RS::CANVAS_ITEM_TEXTURE_REPEAT_DISABLED);
TAAResolvePushConstant push_constant;
memset(&push_constant, 0, sizeof(TAAResolvePushConstant));
push_constant.resolution_width = p_resolution.width;
push_constant.resolution_height = p_resolution.height;
push_constant.disocclusion_threshold = 0.025f;
push_constant.disocclusion_scale = 10.0f;
RD::ComputeListID compute_list = RD::get_singleton()->compute_list_begin();
RD::get_singleton()->compute_list_bind_compute_pipeline(compute_list, pipeline);
RD::Uniform u_frame_source(RD::UNIFORM_TYPE_IMAGE, 0, { p_frame });
RD::Uniform u_depth(RD::UNIFORM_TYPE_SAMPLER_WITH_TEXTURE, 1, { default_sampler, p_depth });
RD::Uniform u_velocity(RD::UNIFORM_TYPE_IMAGE, 2, { p_velocity });
RD::Uniform u_prev_velocity(RD::UNIFORM_TYPE_IMAGE, 3, { p_prev_velocity });
RD::Uniform u_history(RD::UNIFORM_TYPE_SAMPLER_WITH_TEXTURE, 4, { default_sampler, p_history });
RD::Uniform u_frame_dest(RD::UNIFORM_TYPE_IMAGE, 5, { p_temp });
RD::get_singleton()->compute_list_bind_uniform_set(compute_list, uniform_set_cache->get_cache(shader, 0, u_frame_source, u_depth, u_velocity, u_prev_velocity, u_history, u_frame_dest), 0);
RD::get_singleton()->compute_list_set_push_constant(compute_list, &push_constant, sizeof(TAAResolvePushConstant));
RD::get_singleton()->compute_list_dispatch_threads(compute_list, p_resolution.width, p_resolution.height, 1);
RD::get_singleton()->compute_list_end();
}
void TAA::process(Ref<RenderSceneBuffersRD> p_render_buffers, RD::DataFormat p_format, float p_z_near, float p_z_far) {
CopyEffects *copy_effects = CopyEffects::get_singleton();
uint32_t view_count = p_render_buffers->get_view_count();
Size2i internal_size = p_render_buffers->get_internal_size();
Size2i target_size = p_render_buffers->get_target_size();
bool just_allocated = false;
if (!p_render_buffers->has_texture(SNAME("taa"), SNAME("history"))) {
uint32_t usage_bits = RD::TEXTURE_USAGE_SAMPLING_BIT | RD::TEXTURE_USAGE_STORAGE_BIT;
p_render_buffers->create_texture(SNAME("taa"), SNAME("history"), p_format, usage_bits);
p_render_buffers->create_texture(SNAME("taa"), SNAME("temp"), p_format, usage_bits);
p_render_buffers->create_texture(SNAME("taa"), SNAME("prev_velocity"), RD::DATA_FORMAT_R16G16_SFLOAT, usage_bits);
just_allocated = true;
}
RD::get_singleton()->draw_command_begin_label("TAA");
for (uint32_t v = 0; v < view_count; v++) {
// Get our (cached) slices
RID internal_texture = p_render_buffers->get_internal_texture(v);
RID velocity_buffer = p_render_buffers->get_velocity_buffer(false, v);
RID taa_history = p_render_buffers->get_texture_slice(SNAME("taa"), SNAME("history"), v, 0);
RID taa_prev_velocity = p_render_buffers->get_texture_slice(SNAME("taa"), SNAME("prev_velocity"), v, 0);
if (!just_allocated) {
RID depth_texture = p_render_buffers->get_depth_texture(v);
RID taa_temp = p_render_buffers->get_texture_slice(SNAME("taa"), SNAME("temp"), v, 0);
resolve(internal_texture, taa_temp, depth_texture, velocity_buffer, taa_prev_velocity, taa_history, Size2(internal_size.x, internal_size.y), p_z_near, p_z_far);
copy_effects->copy_to_rect(taa_temp, internal_texture, Rect2(0, 0, internal_size.x, internal_size.y));
}
copy_effects->copy_to_rect(internal_texture, taa_history, Rect2(0, 0, internal_size.x, internal_size.y));
copy_effects->copy_to_rect(velocity_buffer, taa_prev_velocity, Rect2(0, 0, target_size.x, target_size.y));
}
RD::get_singleton()->draw_command_end_label();
}
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