554 lines
19 KiB
C++
554 lines
19 KiB
C++
/*************************************************************************/
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/* gi_probe.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) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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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 "gi_probe.h"
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#include "core/os/os.h"
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#include "mesh_instance_3d.h"
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#include "voxelizer.h"
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void GIProbeData::_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 = p_data["bounds"];
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Vector3 octree_size = 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.instance();
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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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Transform to_cell_xform = p_data["to_cell_xform"];
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allocate(to_cell_xform, bounds, octree_size, octree_cells, octree_data, octree_df, octree_levels);
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}
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Dictionary GIProbeData::_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;
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img.instance();
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img->create(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 GIProbeData::allocate(const Transform &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()->gi_probe_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 GIProbeData::get_bounds() const {
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return bounds;
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}
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Vector3 GIProbeData::get_octree_size() const {
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return octree_size;
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}
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Vector<uint8_t> GIProbeData::get_octree_cells() const {
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return RS::get_singleton()->gi_probe_get_octree_cells(probe);
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}
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Vector<uint8_t> GIProbeData::get_data_cells() const {
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return RS::get_singleton()->gi_probe_get_data_cells(probe);
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}
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Vector<uint8_t> GIProbeData::get_distance_field() const {
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return RS::get_singleton()->gi_probe_get_distance_field(probe);
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}
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Vector<int> GIProbeData::get_level_counts() const {
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return RS::get_singleton()->gi_probe_get_level_counts(probe);
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}
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Transform GIProbeData::get_to_cell_xform() const {
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return to_cell_xform;
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}
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void GIProbeData::set_dynamic_range(float p_range) {
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RS::get_singleton()->gi_probe_set_dynamic_range(probe, p_range);
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dynamic_range = p_range;
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}
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float GIProbeData::get_dynamic_range() const {
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return dynamic_range;
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}
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void GIProbeData::set_propagation(float p_propagation) {
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RS::get_singleton()->gi_probe_set_propagation(probe, p_propagation);
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propagation = p_propagation;
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}
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float GIProbeData::get_propagation() const {
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return propagation;
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}
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void GIProbeData::set_anisotropy_strength(float p_anisotropy_strength) {
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RS::get_singleton()->gi_probe_set_anisotropy_strength(probe, p_anisotropy_strength);
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anisotropy_strength = p_anisotropy_strength;
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}
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float GIProbeData::get_anisotropy_strength() const {
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return anisotropy_strength;
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}
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void GIProbeData::set_energy(float p_energy) {
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RS::get_singleton()->gi_probe_set_energy(probe, p_energy);
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energy = p_energy;
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}
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float GIProbeData::get_energy() const {
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return energy;
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}
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void GIProbeData::set_ao(float p_ao) {
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RS::get_singleton()->gi_probe_set_ao(probe, p_ao);
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ao = p_ao;
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}
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float GIProbeData::get_ao() const {
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return ao;
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}
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void GIProbeData::set_ao_size(float p_ao_size) {
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RS::get_singleton()->gi_probe_set_ao_size(probe, p_ao_size);
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ao_size = p_ao_size;
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}
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float GIProbeData::get_ao_size() const {
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return ao_size;
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}
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void GIProbeData::set_bias(float p_bias) {
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RS::get_singleton()->gi_probe_set_bias(probe, p_bias);
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bias = p_bias;
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}
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float GIProbeData::get_bias() const {
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return bias;
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}
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void GIProbeData::set_normal_bias(float p_normal_bias) {
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RS::get_singleton()->gi_probe_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 GIProbeData::get_normal_bias() const {
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return normal_bias;
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}
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void GIProbeData::set_interior(bool p_enable) {
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RS::get_singleton()->gi_probe_set_interior(probe, p_enable);
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interior = p_enable;
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}
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bool GIProbeData::is_interior() const {
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return interior;
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}
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void GIProbeData::set_use_two_bounces(bool p_enable) {
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RS::get_singleton()->gi_probe_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 GIProbeData::is_using_two_bounces() const {
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return use_two_bounces;
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}
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RID GIProbeData::get_rid() const {
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return probe;
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}
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void GIProbeData::_validate_property(PropertyInfo &property) const {
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if (property.name == "anisotropy_strength") {
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bool anisotropy_enabled = ProjectSettings::get_singleton()->get("rendering/global_illumination/gi_probes/anisotropic");
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if (!anisotropy_enabled) {
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property.usage = PROPERTY_USAGE_NOEDITOR;
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}
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}
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}
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void GIProbeData::_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"), &GIProbeData::allocate);
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ClassDB::bind_method(D_METHOD("get_bounds"), &GIProbeData::get_bounds);
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ClassDB::bind_method(D_METHOD("get_octree_size"), &GIProbeData::get_octree_size);
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ClassDB::bind_method(D_METHOD("get_to_cell_xform"), &GIProbeData::get_to_cell_xform);
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ClassDB::bind_method(D_METHOD("get_octree_cells"), &GIProbeData::get_octree_cells);
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ClassDB::bind_method(D_METHOD("get_data_cells"), &GIProbeData::get_data_cells);
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ClassDB::bind_method(D_METHOD("get_level_counts"), &GIProbeData::get_level_counts);
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ClassDB::bind_method(D_METHOD("set_dynamic_range", "dynamic_range"), &GIProbeData::set_dynamic_range);
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ClassDB::bind_method(D_METHOD("get_dynamic_range"), &GIProbeData::get_dynamic_range);
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ClassDB::bind_method(D_METHOD("set_energy", "energy"), &GIProbeData::set_energy);
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ClassDB::bind_method(D_METHOD("get_energy"), &GIProbeData::get_energy);
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ClassDB::bind_method(D_METHOD("set_bias", "bias"), &GIProbeData::set_bias);
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ClassDB::bind_method(D_METHOD("get_bias"), &GIProbeData::get_bias);
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ClassDB::bind_method(D_METHOD("set_normal_bias", "bias"), &GIProbeData::set_normal_bias);
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ClassDB::bind_method(D_METHOD("get_normal_bias"), &GIProbeData::get_normal_bias);
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ClassDB::bind_method(D_METHOD("set_propagation", "propagation"), &GIProbeData::set_propagation);
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ClassDB::bind_method(D_METHOD("get_propagation"), &GIProbeData::get_propagation);
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ClassDB::bind_method(D_METHOD("set_anisotropy_strength", "strength"), &GIProbeData::set_anisotropy_strength);
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ClassDB::bind_method(D_METHOD("get_anisotropy_strength"), &GIProbeData::get_anisotropy_strength);
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ClassDB::bind_method(D_METHOD("set_ao", "ao"), &GIProbeData::set_ao);
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ClassDB::bind_method(D_METHOD("get_ao"), &GIProbeData::get_ao);
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ClassDB::bind_method(D_METHOD("set_ao_size", "strength"), &GIProbeData::set_ao_size);
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ClassDB::bind_method(D_METHOD("get_ao_size"), &GIProbeData::get_ao_size);
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ClassDB::bind_method(D_METHOD("set_interior", "interior"), &GIProbeData::set_interior);
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ClassDB::bind_method(D_METHOD("is_interior"), &GIProbeData::is_interior);
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ClassDB::bind_method(D_METHOD("set_use_two_bounces", "enable"), &GIProbeData::set_use_two_bounces);
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ClassDB::bind_method(D_METHOD("is_using_two_bounces"), &GIProbeData::is_using_two_bounces);
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ClassDB::bind_method(D_METHOD("_set_data", "data"), &GIProbeData::_set_data);
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ClassDB::bind_method(D_METHOD("_get_data"), &GIProbeData::_get_data);
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ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_data", "_get_data");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "dynamic_range", PROPERTY_HINT_RANGE, "0,8,0.01"), "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::FLOAT, "anisotropy_strength", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_anisotropy_strength", "get_anisotropy_strength");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ao", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_ao", "get_ao");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ao_size", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_ao_size", "get_ao_size");
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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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GIProbeData::GIProbeData() {
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probe = RS::get_singleton()->gi_probe_create();
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}
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GIProbeData::~GIProbeData() {
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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 GIProbe::set_probe_data(const Ref<GIProbeData> &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<GIProbeData> GIProbe::get_probe_data() const {
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return probe_data;
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}
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void GIProbe::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_gizmo();
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}
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GIProbe::Subdiv GIProbe::get_subdiv() const {
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return subdiv;
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}
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void GIProbe::set_extents(const Vector3 &p_extents) {
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extents = p_extents;
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update_gizmo();
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}
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Vector3 GIProbe::get_extents() const {
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return extents;
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}
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void GIProbe::_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_BAKED && 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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Transform 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_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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Transform 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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Transform 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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GIProbe::BakeBeginFunc GIProbe::bake_begin_function = nullptr;
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GIProbe::BakeStepFunc GIProbe::bake_step_function = nullptr;
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GIProbe::BakeEndFunc GIProbe::bake_end_function = nullptr;
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Vector3i GIProbe::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 GIProbe::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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Voxelizer baker;
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|
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baker.begin_bake(subdiv_value[subdiv], AABB(-extents, extents * 2.0));
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|
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List<PlotMesh> mesh_list;
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|
|
|
_find_meshes(p_from_node, mesh_list);
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|
|
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if (bake_begin_function) {
|
|
bake_begin_function(mesh_list.size() + 1);
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|
}
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|
|
|
int pmc = 0;
|
|
|
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for (List<PlotMesh>::Element *E = mesh_list.front(); E; E = E->next()) {
|
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if (bake_step_function) {
|
|
bake_step_function(pmc, RTR("Plotting Meshes") + " " + itos(pmc) + "/" + itos(mesh_list.size()));
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|
}
|
|
|
|
pmc++;
|
|
|
|
baker.plot_mesh(E->get().local_xform, E->get().mesh, E->get().instance_materials, E->get().override_material);
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|
}
|
|
if (bake_step_function) {
|
|
bake_step_function(pmc++, RTR("Finishing Plot"));
|
|
}
|
|
|
|
baker.end_bake();
|
|
|
|
//create the data for visual server
|
|
|
|
if (p_create_visual_debug) {
|
|
MultiMeshInstance3D *mmi = memnew(MultiMeshInstance3D);
|
|
mmi->set_multimesh(baker.create_debug_multimesh());
|
|
add_child(mmi);
|
|
#ifdef TOOLS_ENABLED
|
|
if (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<GIProbeData> probe_data = get_probe_data();
|
|
|
|
if (probe_data.is_null()) {
|
|
probe_data.instance();
|
|
}
|
|
|
|
if (bake_step_function) {
|
|
bake_step_function(pmc++, RTR("Generating Distance Field"));
|
|
}
|
|
|
|
Vector<uint8_t> df = baker.get_sdf_3d_image();
|
|
|
|
probe_data->allocate(baker.get_to_cell_space_xform(), AABB(-extents, extents * 2.0), baker.get_giprobe_octree_size(), baker.get_giprobe_octree_cells(), baker.get_giprobe_data_cells(), df, baker.get_giprobe_level_cell_count());
|
|
|
|
set_probe_data(probe_data);
|
|
#ifdef TOOLS_ENABLED
|
|
probe_data->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 GIProbe::_debug_bake() {
|
|
bake(nullptr, true);
|
|
}
|
|
|
|
AABB GIProbe::get_aabb() const {
|
|
return AABB(-extents, extents * 2);
|
|
}
|
|
|
|
Vector<Face3> GIProbe::get_faces(uint32_t p_usage_flags) const {
|
|
return Vector<Face3>();
|
|
}
|
|
|
|
String GIProbe::get_configuration_warning() const {
|
|
String warning = VisualInstance3D::get_configuration_warning();
|
|
|
|
if (RenderingServer::get_singleton()->is_low_end()) {
|
|
if (!warning.is_empty()) {
|
|
warning += "\n\n";
|
|
}
|
|
warning += TTR("GIProbes are not supported by the GLES2 video driver.\nUse a BakedLightmap instead.");
|
|
} else if (probe_data.is_null()) {
|
|
warning += TTR("No GIProbe data set, so this node is disabled. Bake static objects to enable GI.");
|
|
}
|
|
|
|
return warning;
|
|
}
|
|
|
|
void GIProbe::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_probe_data", "data"), &GIProbe::set_probe_data);
|
|
ClassDB::bind_method(D_METHOD("get_probe_data"), &GIProbe::get_probe_data);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_subdiv", "subdiv"), &GIProbe::set_subdiv);
|
|
ClassDB::bind_method(D_METHOD("get_subdiv"), &GIProbe::get_subdiv);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_extents", "extents"), &GIProbe::set_extents);
|
|
ClassDB::bind_method(D_METHOD("get_extents"), &GIProbe::get_extents);
|
|
|
|
ClassDB::bind_method(D_METHOD("bake", "from_node", "create_visual_debug"), &GIProbe::bake, DEFVAL(Variant()), DEFVAL(false));
|
|
ClassDB::bind_method(D_METHOD("debug_bake"), &GIProbe::_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"), "set_extents", "get_extents");
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "data", PROPERTY_HINT_RESOURCE_TYPE, "GIProbeData", 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);
|
|
}
|
|
|
|
GIProbe::GIProbe() {
|
|
gi_probe = RS::get_singleton()->gi_probe_create();
|
|
set_disable_scale(true);
|
|
}
|
|
|
|
GIProbe::~GIProbe() {
|
|
RS::get_singleton()->free(gi_probe);
|
|
}
|