201 lines
7.7 KiB
C++
201 lines
7.7 KiB
C++
/**************************************************************************/
|
|
/* lightmapper.h */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
|
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* 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 LIGHTMAPPER_H
|
|
#define LIGHTMAPPER_H
|
|
|
|
#include "core/object/ref_counted.h"
|
|
|
|
class Image;
|
|
|
|
#if !defined(__aligned)
|
|
|
|
#if defined(_WIN32) && defined(_MSC_VER)
|
|
#define __aligned(...) __declspec(align(__VA_ARGS__))
|
|
#else
|
|
#define __aligned(...) __attribute__((aligned(__VA_ARGS__)))
|
|
#endif
|
|
|
|
#endif
|
|
|
|
class LightmapDenoiser : public RefCounted {
|
|
GDCLASS(LightmapDenoiser, RefCounted)
|
|
protected:
|
|
static LightmapDenoiser *(*create_function)();
|
|
|
|
public:
|
|
virtual Ref<Image> denoise_image(const Ref<Image> &p_image) = 0;
|
|
static Ref<LightmapDenoiser> create();
|
|
};
|
|
|
|
class LightmapRaycaster : public RefCounted {
|
|
GDCLASS(LightmapRaycaster, RefCounted)
|
|
protected:
|
|
static LightmapRaycaster *(*create_function)();
|
|
|
|
public:
|
|
// Compatible with embree4 rays.
|
|
struct __aligned(16) Ray {
|
|
const static unsigned int INVALID_GEOMETRY_ID = ((unsigned int)-1); // from rtcore_common.h
|
|
|
|
/*! Default construction does nothing. */
|
|
_FORCE_INLINE_ Ray() :
|
|
geomID(INVALID_GEOMETRY_ID) {}
|
|
|
|
/*! Constructs a ray from origin, direction, and ray segment. Near
|
|
* has to be smaller than far. */
|
|
_FORCE_INLINE_ Ray(const Vector3 &p_org,
|
|
const Vector3 &p_dir,
|
|
float p_tnear = 0.0f,
|
|
float p_tfar = INFINITY) :
|
|
org(p_org),
|
|
tnear(p_tnear),
|
|
dir(p_dir),
|
|
time(0.0f),
|
|
tfar(p_tfar),
|
|
mask(-1),
|
|
u(0.0),
|
|
v(0.0),
|
|
primID(INVALID_GEOMETRY_ID),
|
|
geomID(INVALID_GEOMETRY_ID),
|
|
instID(INVALID_GEOMETRY_ID) {}
|
|
|
|
/*! Tests if we hit something. */
|
|
_FORCE_INLINE_ explicit operator bool() const {
|
|
return geomID != INVALID_GEOMETRY_ID;
|
|
}
|
|
|
|
public:
|
|
Vector3 org; //!< Ray origin + tnear
|
|
float tnear; //!< Start of ray segment
|
|
Vector3 dir; //!< Ray direction + tfar
|
|
float time; //!< Time of this ray for motion blur.
|
|
float tfar; //!< End of ray segment
|
|
unsigned int mask; //!< used to mask out objects during traversal
|
|
unsigned int id; //!< ray ID
|
|
unsigned int flags; //!< ray flags
|
|
|
|
Vector3 normal; //!< Not normalized geometry normal
|
|
float u; //!< Barycentric u coordinate of hit
|
|
float v; //!< Barycentric v coordinate of hit
|
|
unsigned int primID; //!< primitive ID
|
|
unsigned int geomID; //!< geometry ID
|
|
unsigned int instID; //!< instance ID
|
|
};
|
|
|
|
virtual bool intersect(Ray &p_ray) = 0;
|
|
|
|
virtual void intersect(Vector<Ray> &r_rays) = 0;
|
|
|
|
virtual void add_mesh(const Vector<Vector3> &p_vertices, const Vector<Vector3> &p_normals, const Vector<Vector2> &p_uv2s, unsigned int p_id) = 0;
|
|
virtual void set_mesh_alpha_texture(Ref<Image> p_alpha_texture, unsigned int p_id) = 0;
|
|
virtual void commit() = 0;
|
|
|
|
virtual void set_mesh_filter(const HashSet<int> &p_mesh_ids) = 0;
|
|
virtual void clear_mesh_filter() = 0;
|
|
|
|
static Ref<LightmapRaycaster> create();
|
|
};
|
|
|
|
class Lightmapper : public RefCounted {
|
|
GDCLASS(Lightmapper, RefCounted)
|
|
public:
|
|
enum GenerateProbes {
|
|
GENERATE_PROBES_DISABLED,
|
|
GENERATE_PROBES_SUBDIV_4,
|
|
GENERATE_PROBES_SUBDIV_8,
|
|
GENERATE_PROBES_SUBDIV_16,
|
|
GENERATE_PROBES_SUBDIV_32,
|
|
|
|
};
|
|
|
|
enum LightType {
|
|
LIGHT_TYPE_DIRECTIONAL,
|
|
LIGHT_TYPE_OMNI,
|
|
LIGHT_TYPE_SPOT
|
|
};
|
|
|
|
enum BakeError {
|
|
BAKE_OK,
|
|
BAKE_ERROR_TEXTURE_EXCEEDS_MAX_SIZE,
|
|
BAKE_ERROR_LIGHTMAP_CANT_PRE_BAKE_MESHES,
|
|
BAKE_ERROR_ATLAS_TOO_SMALL,
|
|
};
|
|
|
|
enum BakeQuality {
|
|
BAKE_QUALITY_LOW,
|
|
BAKE_QUALITY_MEDIUM,
|
|
BAKE_QUALITY_HIGH,
|
|
BAKE_QUALITY_ULTRA,
|
|
};
|
|
|
|
typedef Lightmapper *(*CreateFunc)();
|
|
|
|
static CreateFunc create_custom;
|
|
static CreateFunc create_gpu;
|
|
static CreateFunc create_cpu;
|
|
|
|
protected:
|
|
public:
|
|
typedef bool (*BakeStepFunc)(float, const String &, void *, bool); //step index, step total, step description, userdata
|
|
|
|
struct MeshData {
|
|
//triangle data
|
|
Vector<Vector3> points;
|
|
Vector<Vector2> uv2;
|
|
Vector<Vector3> normal;
|
|
Ref<Image> albedo_on_uv2;
|
|
Ref<Image> emission_on_uv2;
|
|
Variant userdata;
|
|
};
|
|
|
|
virtual void add_mesh(const MeshData &p_mesh) = 0;
|
|
virtual void add_directional_light(bool p_static, const Vector3 &p_direction, const Color &p_color, float p_energy, float p_indirect_energy, float p_angular_distance, float p_shadow_blur) = 0;
|
|
virtual void add_omni_light(bool p_static, const Vector3 &p_position, const Color &p_color, float p_energy, float p_indirect_energy, float p_range, float p_attenuation, float p_size, float p_shadow_blur) = 0;
|
|
virtual void add_spot_light(bool p_static, const Vector3 &p_position, const Vector3 p_direction, const Color &p_color, float p_energy, float p_indirect_energy, float p_range, float p_attenuation, float p_spot_angle, float p_spot_attenuation, float p_size, float p_shadow_blur) = 0;
|
|
virtual void add_probe(const Vector3 &p_position) = 0;
|
|
virtual BakeError bake(BakeQuality p_quality, bool p_use_denoiser, float p_denoiser_strength, int p_denoiser_range, int p_bounces, float p_bounce_indirect_energy, float p_bias, int p_max_texture_size, bool p_bake_sh, bool p_texture_for_bounces, GenerateProbes p_generate_probes, const Ref<Image> &p_environment_panorama, const Basis &p_environment_transform, BakeStepFunc p_step_function = nullptr, void *p_step_userdata = nullptr, float p_exposure_normalization = 1.0) = 0;
|
|
|
|
virtual int get_bake_texture_count() const = 0;
|
|
virtual Ref<Image> get_bake_texture(int p_index) const = 0;
|
|
virtual int get_bake_mesh_count() const = 0;
|
|
virtual Variant get_bake_mesh_userdata(int p_index) const = 0;
|
|
virtual Rect2 get_bake_mesh_uv_scale(int p_index) const = 0;
|
|
virtual int get_bake_mesh_texture_slice(int p_index) const = 0;
|
|
virtual int get_bake_probe_count() const = 0;
|
|
virtual Vector3 get_bake_probe_point(int p_probe) const = 0;
|
|
virtual Vector<Color> get_bake_probe_sh(int p_probe) const = 0;
|
|
|
|
static Ref<Lightmapper> create();
|
|
|
|
Lightmapper();
|
|
};
|
|
|
|
#endif // LIGHTMAPPER_H
|