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/*************************************************************************/
/* gi_probe.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 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. */
/*************************************************************************/
#ifndef GIPROBE_H
#define GIPROBE_H
#include "multimesh_instance.h"
#include "scene/3d/visual_instance.h"
class GIProbeData : public Resource {
GDCLASS(GIProbeData, Resource);
RID probe;
protected:
static void _bind_methods();
public:
void set_bounds(const Rect3 &p_bounds);
Rect3 get_bounds() const;
void set_cell_size(float p_size);
float get_cell_size() const;
void set_to_cell_xform(const Transform &p_xform);
Transform get_to_cell_xform() const;
void set_dynamic_data(const PoolVector<int> &p_data);
PoolVector<int> get_dynamic_data() const;
void set_dynamic_range(int p_range);
int get_dynamic_range() const;
void set_propagation(float p_range);
float get_propagation() const;
void set_energy(float p_range);
float get_energy() const;
void set_bias(float p_range);
float get_bias() const;
void set_normal_bias(float p_range);
float get_normal_bias() const;
void set_interior(bool p_enable);
bool is_interior() const;
void set_compress(bool p_enable);
bool is_compressed() const;
virtual RID get_rid() const;
GIProbeData();
~GIProbeData();
};
class GIProbe : public VisualInstance {
GDCLASS(GIProbe, VisualInstance);
public:
enum Subdiv {
SUBDIV_64,
SUBDIV_128,
SUBDIV_256,
SUBDIV_512,
SUBDIV_MAX
};
typedef void (*BakeBeginFunc)(int);
typedef void (*BakeStepFunc)(int, const String &);
typedef void (*BakeEndFunc)();
private:
//stuff used for bake
struct Baker {
enum {
CHILD_EMPTY = 0xFFFFFFFF
};
struct Cell {
uint32_t childs[8];
float albedo[3]; //albedo in RGB24
float emission[3]; //accumulated light in 16:16 fixed point (needs to be integer for moving lights fast)
float normal[3];
uint32_t used_sides;
float alpha; //used for upsampling
int level;
Cell() {
for (int i = 0; i < 8; i++) {
childs[i] = CHILD_EMPTY;
}
for (int i = 0; i < 3; i++) {
emission[i] = 0;
albedo[i] = 0;
normal[i] = 0;
}
alpha = 0;
used_sides = 0;
level = 0;
}
};
Vector<Cell> bake_cells;
int cell_subdiv;
struct MaterialCache {
//128x128 textures
Vector<Color> albedo;
Vector<Color> emission;
};
Vector<Color> _get_bake_texture(Ref<Image> p_image, const Color &p_color);
Map<Ref<Material>, MaterialCache> material_cache;
MaterialCache _get_material_cache(Ref<Material> p_material);
int leaf_voxel_count;
Rect3 po2_bounds;
int axis_cell_size[3];
struct PlotMesh {
Ref<Material> override_material;
Vector<Ref<Material> > instance_materials;
Ref<Mesh> mesh;
Transform local_xform;
};
Transform to_cell_space;
List<PlotMesh> mesh_list;
};
Ref<GIProbeData> probe_data;
RID gi_probe;
Subdiv subdiv;
Vector3 extents;
int dynamic_range;
float energy;
float bias;
float normal_bias;
float propagation;
bool interior;
bool compress;
int color_scan_cell_width;
int bake_texture_size;
Vector<Color> _get_bake_texture(Ref<Image> p_image, const Color &p_color_mul, const Color &p_color_add);
Baker::MaterialCache _get_material_cache(Ref<Material> p_material, Baker *p_baker);
void _plot_face(int p_idx, int p_level, int p_x, int p_y, int p_z, const Vector3 *p_vtx, const Vector2 *p_uv, const Baker::MaterialCache &p_material, const Rect3 &p_aabb, Baker *p_baker);
void _plot_mesh(const Transform &p_xform, Ref<Mesh> &p_mesh, Baker *p_baker, const Vector<Ref<Material> > &p_materials, const Ref<Material> &p_override_material);
void _find_meshes(Node *p_at_node, Baker *p_baker);
void _fixup_plot(int p_idx, int p_level, int p_x, int p_y, int p_z, Baker *p_baker);
void _debug_mesh(int p_idx, int p_level, const Rect3 &p_aabb, Ref<MultiMesh> &p_multimesh, int &idx, Baker *p_baker);
void _create_debug_mesh(Baker *p_baker);
void _debug_bake();
protected:
static void _bind_methods();
public:
static BakeBeginFunc bake_begin_function;
static BakeStepFunc bake_step_function;
static BakeEndFunc bake_end_function;
void set_probe_data(const Ref<GIProbeData> &p_data);
Ref<GIProbeData> get_probe_data() const;
void set_subdiv(Subdiv p_subdiv);
Subdiv get_subdiv() const;
void set_extents(const Vector3 &p_extents);
Vector3 get_extents() const;
void set_dynamic_range(int p_dynamic_range);
int get_dynamic_range() const;
void set_energy(float p_energy);
float get_energy() const;
void set_bias(float p_bias);
float get_bias() const;
void set_normal_bias(float p_normal_bias);
float get_normal_bias() const;
void set_propagation(float p_propagation);
float get_propagation() const;
void set_interior(bool p_enable);
bool is_interior() const;
void set_compress(bool p_enable);
bool is_compressed() const;
void bake(Node *p_from_node = NULL, bool p_create_visual_debug = false);
virtual Rect3 get_aabb() const;
virtual PoolVector<Face3> get_faces(uint32_t p_usage_flags) const;
GIProbe();
~GIProbe();
};
VARIANT_ENUM_CAST(GIProbe::Subdiv)
#endif // GIPROBE_H
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