virtualx-engine/scene/3d/gi_probe.cpp
Juan Linietsky 33b5c57199 Variant: Added 64-bit packed arrays, renamed Variant::REAL to FLOAT.
- Renames PackedIntArray to PackedInt32Array.
- Renames PackedFloatArray to PackedFloat32Array.
- Adds PackedInt64Array and PackedFloat64Array.
- Renames Variant::REAL to Variant::FLOAT for consistency.

Packed arrays are for storing large amount of data and creating stuff like
meshes, buffers. textures, etc. Forcing them to be 64 is a huge waste of
memory. That said, many users requested the ability to have 64 bits packed
arrays for their games, so this is just an optional added type.

For Variant, the float datatype is always 64 bits, and exposed as `float`.

We still have `real_t` which is the datatype that can change from 32 to 64
bits depending on a compile flag (not entirely working right now, but that's
the idea). It affects math related datatypes and code only.

Neither Variant nor PackedArray make use of real_t, which is only intended
for math precision, so the term is removed from there to keep only float.
2020-02-25 12:55:53 +01:00

572 lines
19 KiB
C++

/*************************************************************************/
/* gi_probe.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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 "gi_probe.h"
#include "core/os/os.h"
#include "core/method_bind_ext.gen.inc"
#include "mesh_instance.h"
#include "voxelizer.h"
void GIProbeData::_set_data(const Dictionary &p_data) {
ERR_FAIL_COND(!p_data.has("bounds"));
ERR_FAIL_COND(!p_data.has("octree_size"));
ERR_FAIL_COND(!p_data.has("octree_cells"));
ERR_FAIL_COND(!p_data.has("octree_data"));
ERR_FAIL_COND(!p_data.has("octree_df") && !p_data.has("octree_df_png"));
ERR_FAIL_COND(!p_data.has("level_counts"));
ERR_FAIL_COND(!p_data.has("to_cell_xform"));
AABB bounds = p_data["bounds"];
Vector3 octree_size = p_data["octree_size"];
Vector<uint8_t> octree_cells = p_data["octree_cells"];
Vector<uint8_t> octree_data = p_data["octree_data"];
Vector<uint8_t> octree_df;
if (p_data.has("octree_df")) {
octree_df = p_data["octree_df"];
} else if (p_data.has("octree_df_png")) {
Vector<uint8_t> octree_df_png = p_data["octree_df_png"];
Ref<Image> img;
img.instance();
Error err = img->load_png_from_buffer(octree_df_png);
ERR_FAIL_COND(err != OK);
ERR_FAIL_COND(img->get_format() != Image::FORMAT_L8);
octree_df = img->get_data();
}
Vector<int> octree_levels = p_data["level_counts"];
Transform to_cell_xform = p_data["to_cell_xform"];
allocate(to_cell_xform, bounds, octree_size, octree_cells, octree_data, octree_df, octree_levels);
}
Dictionary GIProbeData::_get_data() const {
Dictionary d;
d["bounds"] = get_bounds();
Vector3i otsize = get_octree_size();
d["octree_size"] = Vector3(otsize);
d["octree_cells"] = get_octree_cells();
d["octree_data"] = get_data_cells();
if (otsize != Vector3i()) {
Ref<Image> img;
img.instance();
img->create(otsize.x * otsize.y, otsize.z, false, Image::FORMAT_L8, get_distance_field());
Vector<uint8_t> df_png = img->save_png_to_buffer();
ERR_FAIL_COND_V(df_png.size() == 0, Dictionary());
d["octree_df_png"] = df_png;
} else {
d["octree_df"] = Vector<uint8_t>();
}
d["level_counts"] = get_level_counts();
d["to_cell_xform"] = get_to_cell_xform();
return d;
}
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) {
VS::get_singleton()->gi_probe_allocate(probe, p_to_cell_xform, p_aabb, p_octree_size, p_octree_cells, p_data_cells, p_distance_field, p_level_counts);
bounds = p_aabb;
to_cell_xform = p_to_cell_xform;
octree_size = p_octree_size;
}
AABB GIProbeData::get_bounds() const {
return bounds;
}
Vector3 GIProbeData::get_octree_size() const {
return octree_size;
}
Vector<uint8_t> GIProbeData::get_octree_cells() const {
return VS::get_singleton()->gi_probe_get_octree_cells(probe);
}
Vector<uint8_t> GIProbeData::get_data_cells() const {
return VS::get_singleton()->gi_probe_get_data_cells(probe);
}
Vector<uint8_t> GIProbeData::get_distance_field() const {
return VS::get_singleton()->gi_probe_get_distance_field(probe);
}
Vector<int> GIProbeData::get_level_counts() const {
return VS::get_singleton()->gi_probe_get_level_counts(probe);
}
Transform GIProbeData::get_to_cell_xform() const {
return to_cell_xform;
}
void GIProbeData::set_dynamic_range(float p_range) {
VS::get_singleton()->gi_probe_set_dynamic_range(probe, p_range);
dynamic_range = p_range;
}
float GIProbeData::get_dynamic_range() const {
return dynamic_range;
}
void GIProbeData::set_propagation(float p_propagation) {
VS::get_singleton()->gi_probe_set_propagation(probe, p_propagation);
propagation = p_propagation;
}
float GIProbeData::get_propagation() const {
return propagation;
}
void GIProbeData::set_anisotropy_strength(float p_anisotropy_strength) {
VS::get_singleton()->gi_probe_set_anisotropy_strength(probe, p_anisotropy_strength);
anisotropy_strength = p_anisotropy_strength;
}
float GIProbeData::get_anisotropy_strength() const {
return anisotropy_strength;
}
void GIProbeData::set_energy(float p_energy) {
VS::get_singleton()->gi_probe_set_energy(probe, p_energy);
energy = p_energy;
}
float GIProbeData::get_energy() const {
return energy;
}
void GIProbeData::set_ao(float p_ao) {
VS::get_singleton()->gi_probe_set_ao(probe, p_ao);
ao = p_ao;
}
float GIProbeData::get_ao() const {
return ao;
}
void GIProbeData::set_ao_size(float p_ao_size) {
VS::get_singleton()->gi_probe_set_ao_size(probe, p_ao_size);
ao_size = p_ao_size;
}
float GIProbeData::get_ao_size() const {
return ao_size;
}
void GIProbeData::set_bias(float p_bias) {
VS::get_singleton()->gi_probe_set_bias(probe, p_bias);
bias = p_bias;
}
float GIProbeData::get_bias() const {
return bias;
}
void GIProbeData::set_normal_bias(float p_normal_bias) {
VS::get_singleton()->gi_probe_set_normal_bias(probe, p_normal_bias);
normal_bias = p_normal_bias;
}
float GIProbeData::get_normal_bias() const {
return normal_bias;
}
void GIProbeData::set_interior(bool p_enable) {
VS::get_singleton()->gi_probe_set_interior(probe, p_enable);
interior = p_enable;
}
bool GIProbeData::is_interior() const {
return interior;
}
void GIProbeData::set_use_two_bounces(bool p_enable) {
VS::get_singleton()->gi_probe_set_use_two_bounces(probe, p_enable);
use_two_bounces = p_enable;
}
bool GIProbeData::is_using_two_bounces() const {
return use_two_bounces;
}
RID GIProbeData::get_rid() const {
return probe;
}
void GIProbeData::_validate_property(PropertyInfo &property) const {
if (property.name == "anisotropy_strength") {
bool anisotropy_enabled = ProjectSettings::get_singleton()->get("rendering/quality/gi_probes/anisotropic");
if (!anisotropy_enabled) {
property.usage = PROPERTY_USAGE_NOEDITOR;
}
}
}
void GIProbeData::_bind_methods() {
ClassDB::bind_method(D_METHOD("allocate", "to_cell_xform", "aabb", "octree_size", "octree_cells", "data_cells", "distance_field", "level_counts"), &GIProbeData::allocate);
ClassDB::bind_method(D_METHOD("get_bounds"), &GIProbeData::get_bounds);
ClassDB::bind_method(D_METHOD("get_octree_size"), &GIProbeData::get_octree_size);
ClassDB::bind_method(D_METHOD("get_to_cell_xform"), &GIProbeData::get_to_cell_xform);
ClassDB::bind_method(D_METHOD("get_octree_cells"), &GIProbeData::get_octree_cells);
ClassDB::bind_method(D_METHOD("get_data_cells"), &GIProbeData::get_data_cells);
ClassDB::bind_method(D_METHOD("get_level_counts"), &GIProbeData::get_level_counts);
ClassDB::bind_method(D_METHOD("set_dynamic_range", "dynamic_range"), &GIProbeData::set_dynamic_range);
ClassDB::bind_method(D_METHOD("get_dynamic_range"), &GIProbeData::get_dynamic_range);
ClassDB::bind_method(D_METHOD("set_energy", "energy"), &GIProbeData::set_energy);
ClassDB::bind_method(D_METHOD("get_energy"), &GIProbeData::get_energy);
ClassDB::bind_method(D_METHOD("set_bias", "bias"), &GIProbeData::set_bias);
ClassDB::bind_method(D_METHOD("get_bias"), &GIProbeData::get_bias);
ClassDB::bind_method(D_METHOD("set_normal_bias", "bias"), &GIProbeData::set_normal_bias);
ClassDB::bind_method(D_METHOD("get_normal_bias"), &GIProbeData::get_normal_bias);
ClassDB::bind_method(D_METHOD("set_propagation", "propagation"), &GIProbeData::set_propagation);
ClassDB::bind_method(D_METHOD("get_propagation"), &GIProbeData::get_propagation);
ClassDB::bind_method(D_METHOD("set_anisotropy_strength", "strength"), &GIProbeData::set_anisotropy_strength);
ClassDB::bind_method(D_METHOD("get_anisotropy_strength"), &GIProbeData::get_anisotropy_strength);
ClassDB::bind_method(D_METHOD("set_ao", "ao"), &GIProbeData::set_ao);
ClassDB::bind_method(D_METHOD("get_ao"), &GIProbeData::get_ao);
ClassDB::bind_method(D_METHOD("set_ao_size", "strength"), &GIProbeData::set_ao_size);
ClassDB::bind_method(D_METHOD("get_ao_size"), &GIProbeData::get_ao_size);
ClassDB::bind_method(D_METHOD("set_interior", "interior"), &GIProbeData::set_interior);
ClassDB::bind_method(D_METHOD("is_interior"), &GIProbeData::is_interior);
ClassDB::bind_method(D_METHOD("set_use_two_bounces", "enable"), &GIProbeData::set_use_two_bounces);
ClassDB::bind_method(D_METHOD("is_using_two_bounces"), &GIProbeData::is_using_two_bounces);
ClassDB::bind_method(D_METHOD("_set_data", "data"), &GIProbeData::_set_data);
ClassDB::bind_method(D_METHOD("_get_data"), &GIProbeData::_get_data);
ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_data", "_get_data");
ADD_PROPERTY(PropertyInfo(Variant::INT, "dynamic_range", PROPERTY_HINT_RANGE, "0,8,0.01"), "set_dynamic_range", "get_dynamic_range");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_energy", "get_energy");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "bias", PROPERTY_HINT_RANGE, "0,8,0.01"), "set_bias", "get_bias");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "normal_bias", PROPERTY_HINT_RANGE, "0,8,0.01"), "set_normal_bias", "get_normal_bias");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "propagation", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_propagation", "get_propagation");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "anisotropy_strength", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_anisotropy_strength", "get_anisotropy_strength");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ao", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_ao", "get_ao");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ao_size", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_ao_size", "get_ao_size");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_two_bounces"), "set_use_two_bounces", "is_using_two_bounces");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "interior"), "set_interior", "is_interior");
}
GIProbeData::GIProbeData() {
ao = 0.0;
ao_size = 0.5;
dynamic_range = 4;
energy = 1.0;
bias = 1.5;
normal_bias = 0.0;
propagation = 0.7;
anisotropy_strength = 0.5;
interior = false;
probe = VS::get_singleton()->gi_probe_create();
}
GIProbeData::~GIProbeData() {
VS::get_singleton()->free(probe);
}
//////////////////////
//////////////////////
void GIProbe::set_probe_data(const Ref<GIProbeData> &p_data) {
if (p_data.is_valid()) {
VS::get_singleton()->instance_set_base(get_instance(), p_data->get_rid());
} else {
VS::get_singleton()->instance_set_base(get_instance(), RID());
}
probe_data = p_data;
}
Ref<GIProbeData> GIProbe::get_probe_data() const {
return probe_data;
}
void GIProbe::set_subdiv(Subdiv p_subdiv) {
ERR_FAIL_INDEX(p_subdiv, SUBDIV_MAX);
subdiv = p_subdiv;
update_gizmo();
}
GIProbe::Subdiv GIProbe::get_subdiv() const {
return subdiv;
}
void GIProbe::set_extents(const Vector3 &p_extents) {
extents = p_extents;
update_gizmo();
_change_notify("extents");
}
Vector3 GIProbe::get_extents() const {
return extents;
}
void GIProbe::_find_meshes(Node *p_at_node, List<PlotMesh> &plot_meshes) {
MeshInstance *mi = Object::cast_to<MeshInstance>(p_at_node);
if (mi && mi->get_flag(GeometryInstance::FLAG_USE_BAKED_LIGHT) && mi->is_visible_in_tree()) {
Ref<Mesh> mesh = mi->get_mesh();
if (mesh.is_valid()) {
AABB aabb = mesh->get_aabb();
Transform xf = get_global_transform().affine_inverse() * mi->get_global_transform();
if (AABB(-extents, extents * 2).intersects(xf.xform(aabb))) {
PlotMesh pm;
pm.local_xform = xf;
pm.mesh = mesh;
for (int i = 0; i < mesh->get_surface_count(); i++) {
pm.instance_materials.push_back(mi->get_surface_material(i));
}
pm.override_material = mi->get_material_override();
plot_meshes.push_back(pm);
}
}
}
Spatial *s = Object::cast_to<Spatial>(p_at_node);
if (s) {
if (s->is_visible_in_tree()) {
Array meshes = p_at_node->call("get_meshes");
for (int i = 0; i < meshes.size(); i += 2) {
Transform mxf = meshes[i];
Ref<Mesh> mesh = meshes[i + 1];
if (!mesh.is_valid())
continue;
AABB aabb = mesh->get_aabb();
Transform xf = get_global_transform().affine_inverse() * (s->get_global_transform() * mxf);
if (AABB(-extents, extents * 2).intersects(xf.xform(aabb))) {
PlotMesh pm;
pm.local_xform = xf;
pm.mesh = mesh;
plot_meshes.push_back(pm);
}
}
}
}
for (int i = 0; i < p_at_node->get_child_count(); i++) {
Node *child = p_at_node->get_child(i);
_find_meshes(child, plot_meshes);
}
}
GIProbe::BakeBeginFunc GIProbe::bake_begin_function = NULL;
GIProbe::BakeStepFunc GIProbe::bake_step_function = NULL;
GIProbe::BakeEndFunc GIProbe::bake_end_function = NULL;
Vector3i GIProbe::get_estimated_cell_size() const {
static const int subdiv_value[SUBDIV_MAX] = { 6, 7, 8, 9 };
int cell_subdiv = subdiv_value[subdiv];
int axis_cell_size[3];
AABB bounds = AABB(-extents, extents * 2.0);
int longest_axis = bounds.get_longest_axis_index();
axis_cell_size[longest_axis] = 1 << cell_subdiv;
for (int i = 0; i < 3; i++) {
if (i == longest_axis)
continue;
axis_cell_size[i] = axis_cell_size[longest_axis];
float axis_size = bounds.size[longest_axis];
//shrink until fit subdiv
while (axis_size / 2.0 >= bounds.size[i]) {
axis_size /= 2.0;
axis_cell_size[i] >>= 1;
}
}
return Vector3i(axis_cell_size[0], axis_cell_size[1], axis_cell_size[2]);
}
void GIProbe::bake(Node *p_from_node, bool p_create_visual_debug) {
static const int subdiv_value[SUBDIV_MAX] = { 6, 7, 8, 9 };
Voxelizer baker;
baker.begin_bake(subdiv_value[subdiv], AABB(-extents, extents * 2.0));
List<PlotMesh> mesh_list;
_find_meshes(p_from_node ? p_from_node : get_parent(), mesh_list);
if (bake_begin_function) {
bake_begin_function(mesh_list.size() + 1);
}
int pmc = 0;
for (List<PlotMesh>::Element *E = mesh_list.front(); E; E = E->next()) {
if (bake_step_function) {
bake_step_function(pmc, RTR("Plotting Meshes") + " " + itos(pmc) + "/" + itos(mesh_list.size()));
}
pmc++;
baker.plot_mesh(E->get().local_xform, E->get().mesh, E->get().instance_materials, E->get().override_material);
}
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) {
MultiMeshInstance *mmi = memnew(MultiMeshInstance);
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();
}
_change_notify(); //bake property may have changed
}
void GIProbe::_debug_bake() {
bake(NULL, 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 {
if (OS::get_singleton()->get_current_video_driver() == OS::VIDEO_DRIVER_GLES2) {
return TTR("GIProbes are not supported by the GLES2 video driver.\nUse a BakedLightmap instead.");
}
return String();
}
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() {
subdiv = SUBDIV_128;
extents = Vector3(10, 10, 10);
gi_probe = VS::get_singleton()->gi_probe_create();
set_disable_scale(true);
}
GIProbe::~GIProbe() {
VS::get_singleton()->free(gi_probe);
}