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godot/scene/3d/gi_probe.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020 
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

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/*************************************************************************/
/* 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 "mesh_instance.h"
#include "voxel_light_baker.h"
void GIProbeData::set_bounds(const AABB &p_bounds) {
VS::get_singleton()->gi_probe_set_bounds(probe, p_bounds);
}
AABB GIProbeData::get_bounds() const {
return VS::get_singleton()->gi_probe_get_bounds(probe);
}
void GIProbeData::set_cell_size(float p_size) {
VS::get_singleton()->gi_probe_set_cell_size(probe, p_size);
}
float GIProbeData::get_cell_size() const {
return VS::get_singleton()->gi_probe_get_cell_size(probe);
}
void GIProbeData::set_to_cell_xform(const Transform &p_xform) {
VS::get_singleton()->gi_probe_set_to_cell_xform(probe, p_xform);
}
Transform GIProbeData::get_to_cell_xform() const {
return VS::get_singleton()->gi_probe_get_to_cell_xform(probe);
}
void GIProbeData::set_dynamic_data(const PoolVector<int> &p_data) {
VS::get_singleton()->gi_probe_set_dynamic_data(probe, p_data);
}
PoolVector<int> GIProbeData::get_dynamic_data() const {
return VS::get_singleton()->gi_probe_get_dynamic_data(probe);
}
void GIProbeData::set_dynamic_range(int p_range) {
VS::get_singleton()->gi_probe_set_dynamic_range(probe, p_range);
}
void GIProbeData::set_energy(float p_range) {
VS::get_singleton()->gi_probe_set_energy(probe, p_range);
}
float GIProbeData::get_energy() const {
return VS::get_singleton()->gi_probe_get_energy(probe);
}
void GIProbeData::set_bias(float p_range) {
VS::get_singleton()->gi_probe_set_bias(probe, p_range);
}
float GIProbeData::get_bias() const {
return VS::get_singleton()->gi_probe_get_bias(probe);
}
void GIProbeData::set_normal_bias(float p_range) {
VS::get_singleton()->gi_probe_set_normal_bias(probe, p_range);
}
float GIProbeData::get_normal_bias() const {
return VS::get_singleton()->gi_probe_get_normal_bias(probe);
}
void GIProbeData::set_propagation(float p_range) {
VS::get_singleton()->gi_probe_set_propagation(probe, p_range);
}
float GIProbeData::get_propagation() const {
return VS::get_singleton()->gi_probe_get_propagation(probe);
}
void GIProbeData::set_interior(bool p_enable) {
VS::get_singleton()->gi_probe_set_interior(probe, p_enable);
}
bool GIProbeData::is_interior() const {
return VS::get_singleton()->gi_probe_is_interior(probe);
}
bool GIProbeData::is_compressed() const {
return VS::get_singleton()->gi_probe_is_compressed(probe);
}
void GIProbeData::set_compress(bool p_enable) {
VS::get_singleton()->gi_probe_set_compress(probe, p_enable);
}
int GIProbeData::get_dynamic_range() const {
return VS::get_singleton()->gi_probe_get_dynamic_range(probe);
}
RID GIProbeData::get_rid() const {
return probe;
}
void GIProbeData::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_bounds", "bounds"), &GIProbeData::set_bounds);
ClassDB::bind_method(D_METHOD("get_bounds"), &GIProbeData::get_bounds);
ClassDB::bind_method(D_METHOD("set_cell_size", "cell_size"), &GIProbeData::set_cell_size);
ClassDB::bind_method(D_METHOD("get_cell_size"), &GIProbeData::get_cell_size);
ClassDB::bind_method(D_METHOD("set_to_cell_xform", "to_cell_xform"), &GIProbeData::set_to_cell_xform);
ClassDB::bind_method(D_METHOD("get_to_cell_xform"), &GIProbeData::get_to_cell_xform);
ClassDB::bind_method(D_METHOD("set_dynamic_data", "dynamic_data"), &GIProbeData::set_dynamic_data);
ClassDB::bind_method(D_METHOD("get_dynamic_data"), &GIProbeData::get_dynamic_data);
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_interior", "interior"), &GIProbeData::set_interior);
ClassDB::bind_method(D_METHOD("is_interior"), &GIProbeData::is_interior);
ClassDB::bind_method(D_METHOD("set_compress", "compress"), &GIProbeData::set_compress);
ClassDB::bind_method(D_METHOD("is_compressed"), &GIProbeData::is_compressed);
ADD_PROPERTY(PropertyInfo(Variant::AABB, "bounds", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_bounds", "get_bounds");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "cell_size", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_cell_size", "get_cell_size");
ADD_PROPERTY(PropertyInfo(Variant::TRANSFORM, "to_cell_xform", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_to_cell_xform", "get_to_cell_xform");
ADD_PROPERTY(PropertyInfo(Variant::POOL_INT_ARRAY, "dynamic_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_dynamic_data", "get_dynamic_data");
ADD_PROPERTY(PropertyInfo(Variant::INT, "dynamic_range", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_dynamic_range", "get_dynamic_range");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "energy", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_energy", "get_energy");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "bias", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_bias", "get_bias");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "normal_bias", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_normal_bias", "get_normal_bias");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "propagation", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_propagation", "get_propagation");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "interior", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_interior", "is_interior");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "compress", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_compress", "is_compressed");
}
GIProbeData::GIProbeData() {
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::set_dynamic_range(int p_dynamic_range) {
dynamic_range = p_dynamic_range;
}
int GIProbe::get_dynamic_range() const {
return dynamic_range;
}
void GIProbe::set_energy(float p_energy) {
energy = p_energy;
if (probe_data.is_valid()) {
probe_data->set_energy(energy);
}
}
float GIProbe::get_energy() const {
return energy;
}
void GIProbe::set_bias(float p_bias) {
bias = p_bias;
if (probe_data.is_valid()) {
probe_data->set_bias(bias);
}
}
float GIProbe::get_bias() const {
return bias;
}
void GIProbe::set_normal_bias(float p_normal_bias) {
normal_bias = p_normal_bias;
if (probe_data.is_valid()) {
probe_data->set_normal_bias(normal_bias);
}
}
float GIProbe::get_normal_bias() const {
return normal_bias;
}
void GIProbe::set_propagation(float p_propagation) {
propagation = p_propagation;
if (probe_data.is_valid()) {
probe_data->set_propagation(propagation);
}
}
float GIProbe::get_propagation() const {
return propagation;
}
void GIProbe::set_interior(bool p_enable) {
interior = p_enable;
if (probe_data.is_valid()) {
probe_data->set_interior(p_enable);
}
}
bool GIProbe::is_interior() const {
return interior;
}
void GIProbe::set_compress(bool p_enable) {
compress = p_enable;
if (probe_data.is_valid()) {
probe_data->set_compress(p_enable);
}
}
bool GIProbe::is_compressed() const {
return compress;
}
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;
void GIProbe::bake(Node *p_from_node, bool p_create_visual_debug) {
static const int subdiv_value[SUBDIV_MAX] = { 7, 8, 9, 10 };
VoxelLightBaker 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
PoolVector<int> data = baker.create_gi_probe_data();
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();
probe_data->set_bounds(AABB(-extents, extents * 2.0));
probe_data->set_cell_size(baker.get_cell_size());
probe_data->set_dynamic_data(data);
probe_data->set_dynamic_range(dynamic_range);
probe_data->set_energy(energy);
probe_data->set_bias(bias);
probe_data->set_normal_bias(normal_bias);
probe_data->set_propagation(propagation);
probe_data->set_interior(interior);
probe_data->set_compress(compress);
probe_data->set_to_cell_xform(baker.get_to_cell_space_xform());
set_probe_data(probe_data);
}
if (bake_end_function) {
bake_end_function();
}
}
void GIProbe::_debug_bake() {
bake(NULL, true);
}
AABB GIProbe::get_aabb() const {
return AABB(-extents, extents * 2);
}
PoolVector<Face3> GIProbe::get_faces(uint32_t p_usage_flags) const {
return PoolVector<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("set_dynamic_range", "max"), &GIProbe::set_dynamic_range);
ClassDB::bind_method(D_METHOD("get_dynamic_range"), &GIProbe::get_dynamic_range);
ClassDB::bind_method(D_METHOD("set_energy", "max"), &GIProbe::set_energy);
ClassDB::bind_method(D_METHOD("get_energy"), &GIProbe::get_energy);
ClassDB::bind_method(D_METHOD("set_bias", "max"), &GIProbe::set_bias);
ClassDB::bind_method(D_METHOD("get_bias"), &GIProbe::get_bias);
ClassDB::bind_method(D_METHOD("set_normal_bias", "max"), &GIProbe::set_normal_bias);
ClassDB::bind_method(D_METHOD("get_normal_bias"), &GIProbe::get_normal_bias);
ClassDB::bind_method(D_METHOD("set_propagation", "max"), &GIProbe::set_propagation);
ClassDB::bind_method(D_METHOD("get_propagation"), &GIProbe::get_propagation);
ClassDB::bind_method(D_METHOD("set_interior", "enable"), &GIProbe::set_interior);
ClassDB::bind_method(D_METHOD("is_interior"), &GIProbe::is_interior);
ClassDB::bind_method(D_METHOD("set_compress", "enable"), &GIProbe::set_compress);
ClassDB::bind_method(D_METHOD("is_compressed"), &GIProbe::is_compressed);
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::INT, "dynamic_range", PROPERTY_HINT_RANGE, "1,16,1"), "set_dynamic_range", "get_dynamic_range");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "energy", PROPERTY_HINT_RANGE, "0,16,0.01,or_greater"), "set_energy", "get_energy");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "propagation", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_propagation", "get_propagation");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "bias", PROPERTY_HINT_RANGE, "0,4,0.001"), "set_bias", "get_bias");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "normal_bias", PROPERTY_HINT_RANGE, "0,4,0.001"), "set_normal_bias", "get_normal_bias");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "interior"), "set_interior", "is_interior");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "compress"), "set_compress", "is_compressed");
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;
dynamic_range = 4;
energy = 1.0;
bias = 1.5;
normal_bias = 0.0;
propagation = 0.7;
extents = Vector3(10, 10, 10);
interior = false;
compress = false;
gi_probe = VS::get_singleton()->gi_probe_create();
set_disable_scale(true);
}
GIProbe::~GIProbe() {
VS::get_singleton()->free(gi_probe);
}
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