d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
522 lines
19 KiB
C++
522 lines
19 KiB
C++
/**************************************************************************/
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/* voxel_gi.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "voxel_gi.h"
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#include "core/config/project_settings.h"
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#include "core/core_string_names.h"
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#include "mesh_instance_3d.h"
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#include "multimesh_instance_3d.h"
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#include "scene/resources/camera_attributes.h"
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#include "voxelizer.h"
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void VoxelGIData::_set_data(const Dictionary &p_data) {
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ERR_FAIL_COND(!p_data.has("bounds"));
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ERR_FAIL_COND(!p_data.has("octree_size"));
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ERR_FAIL_COND(!p_data.has("octree_cells"));
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ERR_FAIL_COND(!p_data.has("octree_data"));
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ERR_FAIL_COND(!p_data.has("octree_df") && !p_data.has("octree_df_png"));
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ERR_FAIL_COND(!p_data.has("level_counts"));
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ERR_FAIL_COND(!p_data.has("to_cell_xform"));
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AABB bounds_new = p_data["bounds"];
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Vector3 octree_size_new = p_data["octree_size"];
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Vector<uint8_t> octree_cells = p_data["octree_cells"];
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Vector<uint8_t> octree_data = p_data["octree_data"];
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Vector<uint8_t> octree_df;
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if (p_data.has("octree_df")) {
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octree_df = p_data["octree_df"];
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} else if (p_data.has("octree_df_png")) {
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Vector<uint8_t> octree_df_png = p_data["octree_df_png"];
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Ref<Image> img;
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img.instantiate();
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Error err = img->load_png_from_buffer(octree_df_png);
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ERR_FAIL_COND(err != OK);
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ERR_FAIL_COND(img->get_format() != Image::FORMAT_L8);
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octree_df = img->get_data();
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}
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Vector<int> octree_levels = p_data["level_counts"];
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Transform3D to_cell_xform_new = p_data["to_cell_xform"];
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allocate(to_cell_xform_new, bounds_new, octree_size_new, octree_cells, octree_data, octree_df, octree_levels);
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}
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Dictionary VoxelGIData::_get_data() const {
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Dictionary d;
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d["bounds"] = get_bounds();
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Vector3i otsize = get_octree_size();
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d["octree_size"] = Vector3(otsize);
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d["octree_cells"] = get_octree_cells();
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d["octree_data"] = get_data_cells();
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if (otsize != Vector3i()) {
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Ref<Image> img = Image::create_from_data(otsize.x * otsize.y, otsize.z, false, Image::FORMAT_L8, get_distance_field());
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Vector<uint8_t> df_png = img->save_png_to_buffer();
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ERR_FAIL_COND_V(df_png.size() == 0, Dictionary());
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d["octree_df_png"] = df_png;
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} else {
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d["octree_df"] = Vector<uint8_t>();
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}
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d["level_counts"] = get_level_counts();
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d["to_cell_xform"] = get_to_cell_xform();
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return d;
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}
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void VoxelGIData::allocate(const Transform3D &p_to_cell_xform, const AABB &p_aabb, const Vector3 &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) {
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RS::get_singleton()->voxel_gi_allocate_data(probe, p_to_cell_xform, p_aabb, p_octree_size, p_octree_cells, p_data_cells, p_distance_field, p_level_counts);
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bounds = p_aabb;
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to_cell_xform = p_to_cell_xform;
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octree_size = p_octree_size;
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}
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AABB VoxelGIData::get_bounds() const {
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return bounds;
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}
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Vector3 VoxelGIData::get_octree_size() const {
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return octree_size;
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}
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Vector<uint8_t> VoxelGIData::get_octree_cells() const {
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return RS::get_singleton()->voxel_gi_get_octree_cells(probe);
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}
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Vector<uint8_t> VoxelGIData::get_data_cells() const {
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return RS::get_singleton()->voxel_gi_get_data_cells(probe);
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}
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Vector<uint8_t> VoxelGIData::get_distance_field() const {
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return RS::get_singleton()->voxel_gi_get_distance_field(probe);
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}
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Vector<int> VoxelGIData::get_level_counts() const {
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return RS::get_singleton()->voxel_gi_get_level_counts(probe);
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}
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Transform3D VoxelGIData::get_to_cell_xform() const {
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return to_cell_xform;
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}
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void VoxelGIData::set_dynamic_range(float p_range) {
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RS::get_singleton()->voxel_gi_set_dynamic_range(probe, p_range);
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dynamic_range = p_range;
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}
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float VoxelGIData::get_dynamic_range() const {
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return dynamic_range;
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}
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void VoxelGIData::set_propagation(float p_propagation) {
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RS::get_singleton()->voxel_gi_set_propagation(probe, p_propagation);
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propagation = p_propagation;
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}
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float VoxelGIData::get_propagation() const {
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return propagation;
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}
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void VoxelGIData::set_energy(float p_energy) {
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RS::get_singleton()->voxel_gi_set_energy(probe, p_energy);
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energy = p_energy;
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}
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float VoxelGIData::get_energy() const {
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return energy;
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}
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void VoxelGIData::set_bias(float p_bias) {
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RS::get_singleton()->voxel_gi_set_bias(probe, p_bias);
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bias = p_bias;
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}
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float VoxelGIData::get_bias() const {
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return bias;
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}
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void VoxelGIData::set_normal_bias(float p_normal_bias) {
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RS::get_singleton()->voxel_gi_set_normal_bias(probe, p_normal_bias);
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normal_bias = p_normal_bias;
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}
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float VoxelGIData::get_normal_bias() const {
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return normal_bias;
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}
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void VoxelGIData::set_interior(bool p_enable) {
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RS::get_singleton()->voxel_gi_set_interior(probe, p_enable);
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interior = p_enable;
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}
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bool VoxelGIData::is_interior() const {
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return interior;
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}
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void VoxelGIData::set_use_two_bounces(bool p_enable) {
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RS::get_singleton()->voxel_gi_set_use_two_bounces(probe, p_enable);
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use_two_bounces = p_enable;
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}
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bool VoxelGIData::is_using_two_bounces() const {
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return use_two_bounces;
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}
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RID VoxelGIData::get_rid() const {
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return probe;
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}
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void VoxelGIData::_bind_methods() {
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ClassDB::bind_method(D_METHOD("allocate", "to_cell_xform", "aabb", "octree_size", "octree_cells", "data_cells", "distance_field", "level_counts"), &VoxelGIData::allocate);
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ClassDB::bind_method(D_METHOD("get_bounds"), &VoxelGIData::get_bounds);
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ClassDB::bind_method(D_METHOD("get_octree_size"), &VoxelGIData::get_octree_size);
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ClassDB::bind_method(D_METHOD("get_to_cell_xform"), &VoxelGIData::get_to_cell_xform);
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ClassDB::bind_method(D_METHOD("get_octree_cells"), &VoxelGIData::get_octree_cells);
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ClassDB::bind_method(D_METHOD("get_data_cells"), &VoxelGIData::get_data_cells);
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ClassDB::bind_method(D_METHOD("get_level_counts"), &VoxelGIData::get_level_counts);
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ClassDB::bind_method(D_METHOD("set_dynamic_range", "dynamic_range"), &VoxelGIData::set_dynamic_range);
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ClassDB::bind_method(D_METHOD("get_dynamic_range"), &VoxelGIData::get_dynamic_range);
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ClassDB::bind_method(D_METHOD("set_energy", "energy"), &VoxelGIData::set_energy);
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ClassDB::bind_method(D_METHOD("get_energy"), &VoxelGIData::get_energy);
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ClassDB::bind_method(D_METHOD("set_bias", "bias"), &VoxelGIData::set_bias);
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ClassDB::bind_method(D_METHOD("get_bias"), &VoxelGIData::get_bias);
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ClassDB::bind_method(D_METHOD("set_normal_bias", "bias"), &VoxelGIData::set_normal_bias);
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ClassDB::bind_method(D_METHOD("get_normal_bias"), &VoxelGIData::get_normal_bias);
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ClassDB::bind_method(D_METHOD("set_propagation", "propagation"), &VoxelGIData::set_propagation);
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ClassDB::bind_method(D_METHOD("get_propagation"), &VoxelGIData::get_propagation);
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ClassDB::bind_method(D_METHOD("set_interior", "interior"), &VoxelGIData::set_interior);
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ClassDB::bind_method(D_METHOD("is_interior"), &VoxelGIData::is_interior);
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ClassDB::bind_method(D_METHOD("set_use_two_bounces", "enable"), &VoxelGIData::set_use_two_bounces);
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ClassDB::bind_method(D_METHOD("is_using_two_bounces"), &VoxelGIData::is_using_two_bounces);
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ClassDB::bind_method(D_METHOD("_set_data", "data"), &VoxelGIData::_set_data);
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ClassDB::bind_method(D_METHOD("_get_data"), &VoxelGIData::_get_data);
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ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "_set_data", "_get_data");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "dynamic_range", PROPERTY_HINT_RANGE, "1,8,0.01"), "set_dynamic_range", "get_dynamic_range");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_energy", "get_energy");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "bias", PROPERTY_HINT_RANGE, "0,8,0.01"), "set_bias", "get_bias");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "normal_bias", PROPERTY_HINT_RANGE, "0,8,0.01"), "set_normal_bias", "get_normal_bias");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "propagation", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_propagation", "get_propagation");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_two_bounces"), "set_use_two_bounces", "is_using_two_bounces");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "interior"), "set_interior", "is_interior");
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}
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VoxelGIData::VoxelGIData() {
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probe = RS::get_singleton()->voxel_gi_create();
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}
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VoxelGIData::~VoxelGIData() {
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ERR_FAIL_NULL(RenderingServer::get_singleton());
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RS::get_singleton()->free(probe);
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}
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//////////////////////
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//////////////////////
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void VoxelGI::set_probe_data(const Ref<VoxelGIData> &p_data) {
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if (p_data.is_valid()) {
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RS::get_singleton()->instance_set_base(get_instance(), p_data->get_rid());
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} else {
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RS::get_singleton()->instance_set_base(get_instance(), RID());
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}
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probe_data = p_data;
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}
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Ref<VoxelGIData> VoxelGI::get_probe_data() const {
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return probe_data;
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}
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void VoxelGI::set_subdiv(Subdiv p_subdiv) {
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ERR_FAIL_INDEX(p_subdiv, SUBDIV_MAX);
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subdiv = p_subdiv;
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update_gizmos();
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}
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VoxelGI::Subdiv VoxelGI::get_subdiv() const {
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return subdiv;
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}
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void VoxelGI::set_extents(const Vector3 &p_extents) {
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// Prevent very small extents as these break baking if other extents are set very high.
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extents = Vector3(MAX(1.0, p_extents.x), MAX(1.0, p_extents.y), MAX(1.0, p_extents.z));
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update_gizmos();
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}
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Vector3 VoxelGI::get_extents() const {
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return extents;
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}
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void VoxelGI::set_camera_attributes(const Ref<CameraAttributes> &p_camera_attributes) {
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camera_attributes = p_camera_attributes;
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}
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Ref<CameraAttributes> VoxelGI::get_camera_attributes() const {
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return camera_attributes;
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}
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void VoxelGI::_find_meshes(Node *p_at_node, List<PlotMesh> &plot_meshes) {
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MeshInstance3D *mi = Object::cast_to<MeshInstance3D>(p_at_node);
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if (mi && mi->get_gi_mode() == GeometryInstance3D::GI_MODE_STATIC && mi->is_visible_in_tree()) {
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Ref<Mesh> mesh = mi->get_mesh();
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if (mesh.is_valid()) {
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AABB aabb = mesh->get_aabb();
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Transform3D xf = get_global_transform().affine_inverse() * mi->get_global_transform();
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if (AABB(-extents, extents * 2).intersects(xf.xform(aabb))) {
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PlotMesh pm;
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pm.local_xform = xf;
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pm.mesh = mesh;
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for (int i = 0; i < mesh->get_surface_count(); i++) {
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pm.instance_materials.push_back(mi->get_surface_override_material(i));
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}
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pm.override_material = mi->get_material_override();
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plot_meshes.push_back(pm);
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}
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}
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}
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Node3D *s = Object::cast_to<Node3D>(p_at_node);
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if (s) {
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if (s->is_visible_in_tree()) {
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Array meshes = p_at_node->call("get_meshes");
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for (int i = 0; i < meshes.size(); i += 2) {
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Transform3D mxf = meshes[i];
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Ref<Mesh> mesh = meshes[i + 1];
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if (!mesh.is_valid()) {
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continue;
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}
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AABB aabb = mesh->get_aabb();
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Transform3D xf = get_global_transform().affine_inverse() * (s->get_global_transform() * mxf);
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if (AABB(-extents, extents * 2).intersects(xf.xform(aabb))) {
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PlotMesh pm;
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pm.local_xform = xf;
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pm.mesh = mesh;
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plot_meshes.push_back(pm);
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}
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}
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}
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}
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for (int i = 0; i < p_at_node->get_child_count(); i++) {
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Node *child = p_at_node->get_child(i);
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_find_meshes(child, plot_meshes);
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}
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}
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VoxelGI::BakeBeginFunc VoxelGI::bake_begin_function = nullptr;
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VoxelGI::BakeStepFunc VoxelGI::bake_step_function = nullptr;
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VoxelGI::BakeEndFunc VoxelGI::bake_end_function = nullptr;
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Vector3i VoxelGI::get_estimated_cell_size() const {
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static const int subdiv_value[SUBDIV_MAX] = { 6, 7, 8, 9 };
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int cell_subdiv = subdiv_value[subdiv];
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int axis_cell_size[3];
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AABB bounds = AABB(-extents, extents * 2.0);
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int longest_axis = bounds.get_longest_axis_index();
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axis_cell_size[longest_axis] = 1 << cell_subdiv;
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for (int i = 0; i < 3; i++) {
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if (i == longest_axis) {
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continue;
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}
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axis_cell_size[i] = axis_cell_size[longest_axis];
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float axis_size = bounds.size[longest_axis];
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//shrink until fit subdiv
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while (axis_size / 2.0 >= bounds.size[i]) {
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axis_size /= 2.0;
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axis_cell_size[i] >>= 1;
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}
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}
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return Vector3i(axis_cell_size[0], axis_cell_size[1], axis_cell_size[2]);
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}
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void VoxelGI::bake(Node *p_from_node, bool p_create_visual_debug) {
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static const int subdiv_value[SUBDIV_MAX] = { 6, 7, 8, 9 };
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p_from_node = p_from_node ? p_from_node : get_parent();
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ERR_FAIL_NULL(p_from_node);
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float exposure_normalization = 1.0;
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if (camera_attributes.is_valid()) {
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exposure_normalization = camera_attributes->get_exposure_multiplier();
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if (GLOBAL_GET("rendering/lights_and_shadows/use_physical_light_units")) {
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exposure_normalization = camera_attributes->calculate_exposure_normalization();
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}
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}
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Voxelizer baker;
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baker.begin_bake(subdiv_value[subdiv], AABB(-extents, extents * 2.0), exposure_normalization);
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List<PlotMesh> mesh_list;
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_find_meshes(p_from_node, mesh_list);
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if (bake_begin_function) {
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bake_begin_function(mesh_list.size() + 1);
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}
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int pmc = 0;
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for (PlotMesh &E : mesh_list) {
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if (bake_step_function) {
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bake_step_function(pmc, RTR("Plotting Meshes") + " " + itos(pmc) + "/" + itos(mesh_list.size()));
|
|
}
|
|
|
|
pmc++;
|
|
|
|
baker.plot_mesh(E.local_xform, E.mesh, E.instance_materials, E.override_material);
|
|
}
|
|
if (bake_step_function) {
|
|
bake_step_function(pmc++, RTR("Finishing Plot"));
|
|
}
|
|
|
|
baker.end_bake();
|
|
|
|
//create the data for rendering server
|
|
|
|
if (p_create_visual_debug) {
|
|
MultiMeshInstance3D *mmi = memnew(MultiMeshInstance3D);
|
|
mmi->set_multimesh(baker.create_debug_multimesh());
|
|
add_child(mmi, true);
|
|
#ifdef TOOLS_ENABLED
|
|
if (is_inside_tree() && get_tree()->get_edited_scene_root() == this) {
|
|
mmi->set_owner(this);
|
|
} else {
|
|
mmi->set_owner(get_owner());
|
|
}
|
|
#else
|
|
mmi->set_owner(get_owner());
|
|
#endif
|
|
|
|
} else {
|
|
Ref<VoxelGIData> probe_data_new = get_probe_data();
|
|
|
|
if (probe_data_new.is_null()) {
|
|
probe_data_new.instantiate();
|
|
}
|
|
|
|
if (bake_step_function) {
|
|
bake_step_function(pmc++, RTR("Generating Distance Field"));
|
|
}
|
|
|
|
Vector<uint8_t> df = baker.get_sdf_3d_image();
|
|
|
|
RS::get_singleton()->voxel_gi_set_baked_exposure_normalization(probe_data_new->get_rid(), exposure_normalization);
|
|
|
|
probe_data_new->allocate(baker.get_to_cell_space_xform(), AABB(-extents, extents * 2.0), baker.get_voxel_gi_octree_size(), baker.get_voxel_gi_octree_cells(), baker.get_voxel_gi_data_cells(), df, baker.get_voxel_gi_level_cell_count());
|
|
|
|
set_probe_data(probe_data_new);
|
|
#ifdef TOOLS_ENABLED
|
|
probe_data_new->set_edited(true); //so it gets saved
|
|
#endif
|
|
}
|
|
|
|
if (bake_end_function) {
|
|
bake_end_function();
|
|
}
|
|
|
|
notify_property_list_changed(); //bake property may have changed
|
|
}
|
|
|
|
void VoxelGI::_debug_bake() {
|
|
bake(nullptr, true);
|
|
}
|
|
|
|
AABB VoxelGI::get_aabb() const {
|
|
return AABB(-extents, extents * 2);
|
|
}
|
|
|
|
PackedStringArray VoxelGI::get_configuration_warnings() const {
|
|
PackedStringArray warnings = Node::get_configuration_warnings();
|
|
|
|
if (RenderingServer::get_singleton()->is_low_end()) {
|
|
warnings.push_back(RTR("VoxelGIs are not supported by the OpenGL video driver.\nUse a LightmapGI instead."));
|
|
} else if (probe_data.is_null()) {
|
|
warnings.push_back(RTR("No VoxelGI data set, so this node is disabled. Bake static objects to enable GI."));
|
|
}
|
|
return warnings;
|
|
}
|
|
|
|
void VoxelGI::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_probe_data", "data"), &VoxelGI::set_probe_data);
|
|
ClassDB::bind_method(D_METHOD("get_probe_data"), &VoxelGI::get_probe_data);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_subdiv", "subdiv"), &VoxelGI::set_subdiv);
|
|
ClassDB::bind_method(D_METHOD("get_subdiv"), &VoxelGI::get_subdiv);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_extents", "extents"), &VoxelGI::set_extents);
|
|
ClassDB::bind_method(D_METHOD("get_extents"), &VoxelGI::get_extents);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_camera_attributes", "camera_attributes"), &VoxelGI::set_camera_attributes);
|
|
ClassDB::bind_method(D_METHOD("get_camera_attributes"), &VoxelGI::get_camera_attributes);
|
|
|
|
ClassDB::bind_method(D_METHOD("bake", "from_node", "create_visual_debug"), &VoxelGI::bake, DEFVAL(Variant()), DEFVAL(false));
|
|
ClassDB::bind_method(D_METHOD("debug_bake"), &VoxelGI::_debug_bake);
|
|
ClassDB::set_method_flags(get_class_static(), _scs_create("debug_bake"), METHOD_FLAGS_DEFAULT | METHOD_FLAG_EDITOR);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "subdiv", PROPERTY_HINT_ENUM, "64,128,256,512"), "set_subdiv", "get_subdiv");
|
|
ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "extents", PROPERTY_HINT_NONE, "suffix:m"), "set_extents", "get_extents");
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "camera_attributes", PROPERTY_HINT_RESOURCE_TYPE, "CameraAttributesPractical,CameraAttributesPhysical"), "set_camera_attributes", "get_camera_attributes");
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "data", PROPERTY_HINT_RESOURCE_TYPE, "VoxelGIData", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_DO_NOT_SHARE_ON_DUPLICATE), "set_probe_data", "get_probe_data");
|
|
|
|
BIND_ENUM_CONSTANT(SUBDIV_64);
|
|
BIND_ENUM_CONSTANT(SUBDIV_128);
|
|
BIND_ENUM_CONSTANT(SUBDIV_256);
|
|
BIND_ENUM_CONSTANT(SUBDIV_512);
|
|
BIND_ENUM_CONSTANT(SUBDIV_MAX);
|
|
}
|
|
|
|
VoxelGI::VoxelGI() {
|
|
voxel_gi = RS::get_singleton()->voxel_gi_create();
|
|
set_disable_scale(true);
|
|
}
|
|
|
|
VoxelGI::~VoxelGI() {
|
|
ERR_FAIL_NULL(RenderingServer::get_singleton());
|
|
RS::get_singleton()->free(voxel_gi);
|
|
}
|