Merge pull request #37179 from clayjohn/VULKAN-sky-shader

Implement Sky Shaders
This commit is contained in:
Rémi Verschelde
2020-03-22 20:03:35 +01:00
committed by GitHub
41 changed files with 2541 additions and 1127 deletions
+6 -3
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@@ -158,6 +158,7 @@
#include "scene/resources/resource_format_text.h"
#include "scene/resources/segment_shape_2d.h"
#include "scene/resources/sky.h"
#include "scene/resources/sky_material.h"
#include "scene/resources/sphere_shape.h"
#include "scene/resources/surface_tool.h"
#include "scene/resources/text_file.h"
@@ -609,6 +610,10 @@ void register_scene_types() {
SceneTree::add_idle_callback(ParticlesMaterial::flush_changes);
ParticlesMaterial::init_shaders();
ClassDB::register_class<ProceduralSkyMaterial>();
ClassDB::register_class<PanoramaSkyMaterial>();
ClassDB::register_class<PhysicalSkyMaterial>();
ClassDB::register_virtual_class<Mesh>();
ClassDB::register_class<ArrayMesh>();
ClassDB::register_class<MultiMesh>();
@@ -659,9 +664,7 @@ void register_scene_types() {
ClassDB::register_class<World2D>();
ClassDB::register_virtual_class<Texture>();
ClassDB::register_virtual_class<Texture2D>();
ClassDB::register_virtual_class<Sky>();
ClassDB::register_class<PanoramaSky>();
ClassDB::register_class<ProceduralSky>();
ClassDB::register_class<Sky>();
ClassDB::register_class<StreamTexture>();
ClassDB::register_class<ImageTexture>();
ClassDB::register_class<AtlasTexture>();
+3
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@@ -48,6 +48,8 @@ void Shader::set_code(const String &p_code) {
mode = MODE_CANVAS_ITEM;
} else if (type == "particles") {
mode = MODE_PARTICLES;
} else if (type == "sky") {
mode = MODE_SKY;
} else {
mode = MODE_SPATIAL;
}
@@ -158,6 +160,7 @@ void Shader::_bind_methods() {
BIND_ENUM_CONSTANT(MODE_SPATIAL);
BIND_ENUM_CONSTANT(MODE_CANVAS_ITEM);
BIND_ENUM_CONSTANT(MODE_PARTICLES);
BIND_ENUM_CONSTANT(MODE_SKY);
}
Shader::Shader() {
+1
View File
@@ -47,6 +47,7 @@ public:
MODE_SPATIAL,
MODE_CANVAS_ITEM,
MODE_PARTICLES,
MODE_SKY,
MODE_MAX
};
+18 -491
View File
@@ -56,6 +56,18 @@ Sky::ProcessMode Sky::get_process_mode() const {
return mode;
}
void Sky::set_material(const Ref<Material> &p_material) {
sky_material = p_material;
RID material_rid;
if (sky_material.is_valid())
material_rid = sky_material->get_rid();
VS::get_singleton()->sky_set_material(sky, material_rid);
}
Ref<Material> Sky::get_material() const {
return sky_material;
}
RID Sky::get_rid() const {
return sky;
@@ -69,6 +81,10 @@ void Sky::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_process_mode", "mode"), &Sky::set_process_mode);
ClassDB::bind_method(D_METHOD("get_process_mode"), &Sky::get_process_mode);
ClassDB::bind_method(D_METHOD("set_material", "material"), &Sky::set_material);
ClassDB::bind_method(D_METHOD("get_material"), &Sky::get_material);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "sky_material", PROPERTY_HINT_RESOURCE_TYPE, "ShaderMaterial,PanoramaSkyMaterial,ProceduralSkyMaterial,PhysicalSkyMaterial"), "set_material", "get_material");
ADD_PROPERTY(PropertyInfo(Variant::INT, "radiance_size", PROPERTY_HINT_ENUM, "32,64,128,256,512,1024,2048"), "set_radiance_size", "get_radiance_size");
ADD_PROPERTY(PropertyInfo(Variant::INT, "process_mode", PROPERTY_HINT_ENUM, "HighQuality,RealTime"), "set_process_mode", "get_process_mode");
@@ -87,500 +103,11 @@ void Sky::_bind_methods() {
Sky::Sky() {
mode = PROCESS_MODE_QUALITY;
radiance_size = RADIANCE_SIZE_128;
radiance_size = RADIANCE_SIZE_256;
sky = VS::get_singleton()->sky_create();
}
Sky::~Sky() {
VS::get_singleton()->free(sky);
}
/////////////////////////////////////////
void PanoramaSky::set_panorama(const Ref<Texture2D> &p_panorama) {
panorama = p_panorama;
RID rid = p_panorama.is_valid() ? p_panorama->get_rid() : RID();
VS::get_singleton()->sky_set_texture(get_rid(), rid);
}
Ref<Texture2D> PanoramaSky::get_panorama() const {
return panorama;
}
void PanoramaSky::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_panorama", "texture"), &PanoramaSky::set_panorama);
ClassDB::bind_method(D_METHOD("get_panorama"), &PanoramaSky::get_panorama);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "panorama", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_panorama", "get_panorama");
}
PanoramaSky::PanoramaSky() {
}
PanoramaSky::~PanoramaSky() {
}
//////////////////////////////////
Ref<Image> ProceduralSky::_generate_sky() {
update_queued = false;
Vector<uint8_t> imgdata;
static const int size[TEXTURE_SIZE_MAX] = {
256, 512, 1024, 2048, 4096
};
int w = size[texture_size];
int h = w / 2;
imgdata.resize(w * h * 4); //RGBE
{
uint8_t *dataw = imgdata.ptrw();
uint32_t *ptr = (uint32_t *)dataw;
Color sky_top_linear = sky_top_color.to_linear();
Color sky_horizon_linear = sky_horizon_color.to_linear();
Color ground_bottom_linear = ground_bottom_color.to_linear();
Color ground_horizon_linear = ground_horizon_color.to_linear();
Color sun_linear;
sun_linear.r = sun_color.r * sun_energy;
sun_linear.g = sun_color.g * sun_energy;
sun_linear.b = sun_color.b * sun_energy;
Vector3 sun(0, 0, -1);
sun = Basis(Vector3(1, 0, 0), Math::deg2rad(sun_latitude)).xform(sun);
sun = Basis(Vector3(0, 1, 0), Math::deg2rad(sun_longitude)).xform(sun);
sun.normalize();
for (int i = 0; i < w; i++) {
float u = float(i) / (w - 1);
float phi = u * 2.0 * Math_PI;
for (int j = 0; j < h; j++) {
float v = float(j) / (h - 1);
float theta = v * Math_PI;
Vector3 normal(
Math::sin(phi) * Math::sin(theta) * -1.0,
Math::cos(theta),
Math::cos(phi) * Math::sin(theta) * -1.0);
normal.normalize();
float v_angle = Math::acos(CLAMP(normal.y, -1.0, 1.0));
Color color;
if (normal.y < 0) {
//ground
float c = (v_angle - (Math_PI * 0.5)) / (Math_PI * 0.5);
color = ground_horizon_linear.linear_interpolate(ground_bottom_linear, Math::ease(c, ground_curve));
color.r *= ground_energy;
color.g *= ground_energy;
color.b *= ground_energy;
} else {
float c = v_angle / (Math_PI * 0.5);
color = sky_horizon_linear.linear_interpolate(sky_top_linear, Math::ease(1.0 - c, sky_curve));
color.r *= sky_energy;
color.g *= sky_energy;
color.b *= sky_energy;
float sun_angle = Math::rad2deg(Math::acos(CLAMP(sun.dot(normal), -1.0, 1.0)));
if (sun_angle < sun_angle_min) {
color = color.blend(sun_linear);
} else if (sun_angle < sun_angle_max) {
float c2 = (sun_angle - sun_angle_min) / (sun_angle_max - sun_angle_min);
c2 = Math::ease(c2, sun_curve);
color = color.blend(sun_linear).linear_interpolate(color, c2);
}
}
ptr[j * w + i] = color.to_rgbe9995();
}
}
}
Ref<Image> image;
image.instance();
image->create(w, h, false, Image::FORMAT_RGBE9995, imgdata);
return image;
}
void ProceduralSky::set_sky_top_color(const Color &p_sky_top) {
sky_top_color = p_sky_top;
_queue_update();
}
Color ProceduralSky::get_sky_top_color() const {
return sky_top_color;
}
void ProceduralSky::set_sky_horizon_color(const Color &p_sky_horizon) {
sky_horizon_color = p_sky_horizon;
_queue_update();
}
Color ProceduralSky::get_sky_horizon_color() const {
return sky_horizon_color;
}
void ProceduralSky::set_sky_curve(float p_curve) {
sky_curve = p_curve;
_queue_update();
}
float ProceduralSky::get_sky_curve() const {
return sky_curve;
}
void ProceduralSky::set_sky_energy(float p_energy) {
sky_energy = p_energy;
_queue_update();
}
float ProceduralSky::get_sky_energy() const {
return sky_energy;
}
void ProceduralSky::set_ground_bottom_color(const Color &p_ground_bottom) {
ground_bottom_color = p_ground_bottom;
_queue_update();
}
Color ProceduralSky::get_ground_bottom_color() const {
return ground_bottom_color;
}
void ProceduralSky::set_ground_horizon_color(const Color &p_ground_horizon) {
ground_horizon_color = p_ground_horizon;
_queue_update();
}
Color ProceduralSky::get_ground_horizon_color() const {
return ground_horizon_color;
}
void ProceduralSky::set_ground_curve(float p_curve) {
ground_curve = p_curve;
_queue_update();
}
float ProceduralSky::get_ground_curve() const {
return ground_curve;
}
void ProceduralSky::set_ground_energy(float p_energy) {
ground_energy = p_energy;
_queue_update();
}
float ProceduralSky::get_ground_energy() const {
return ground_energy;
}
void ProceduralSky::set_sun_color(const Color &p_sun) {
sun_color = p_sun;
_queue_update();
}
Color ProceduralSky::get_sun_color() const {
return sun_color;
}
void ProceduralSky::set_sun_latitude(float p_angle) {
sun_latitude = p_angle;
_queue_update();
}
float ProceduralSky::get_sun_latitude() const {
return sun_latitude;
}
void ProceduralSky::set_sun_longitude(float p_angle) {
sun_longitude = p_angle;
_queue_update();
}
float ProceduralSky::get_sun_longitude() const {
return sun_longitude;
}
void ProceduralSky::set_sun_angle_min(float p_angle) {
sun_angle_min = p_angle;
_queue_update();
}
float ProceduralSky::get_sun_angle_min() const {
return sun_angle_min;
}
void ProceduralSky::set_sun_angle_max(float p_angle) {
sun_angle_max = p_angle;
_queue_update();
}
float ProceduralSky::get_sun_angle_max() const {
return sun_angle_max;
}
void ProceduralSky::set_sun_curve(float p_curve) {
sun_curve = p_curve;
_queue_update();
}
float ProceduralSky::get_sun_curve() const {
return sun_curve;
}
void ProceduralSky::set_sun_energy(float p_energy) {
sun_energy = p_energy;
_queue_update();
}
float ProceduralSky::get_sun_energy() const {
return sun_energy;
}
void ProceduralSky::set_texture_size(TextureSize p_size) {
ERR_FAIL_INDEX(p_size, TEXTURE_SIZE_MAX);
texture_size = p_size;
_queue_update();
}
ProceduralSky::TextureSize ProceduralSky::get_texture_size() const {
return texture_size;
}
void ProceduralSky::_update_sky() {
bool use_thread = true;
if (first_time) {
use_thread = false;
first_time = false;
}
#ifdef NO_THREADS
use_thread = false;
#endif
if (use_thread) {
if (!sky_thread) {
sky_thread = Thread::create(_thread_function, this);
regen_queued = false;
} else {
regen_queued = true;
}
} else {
Ref<Image> image = _generate_sky();
if (texture.is_valid()) {
RID new_texture = VS::get_singleton()->texture_2d_create(image);
VS::get_singleton()->texture_replace(texture, new_texture);
} else {
texture = VS::get_singleton()->texture_2d_create(image);
}
VS::get_singleton()->sky_set_texture(get_rid(), texture);
}
}
void ProceduralSky::_queue_update() {
if (update_queued)
return;
update_queued = true;
call_deferred("_update_sky");
}
void ProceduralSky::_thread_done(const Ref<Image> &p_image) {
if (texture.is_valid()) {
RID new_texture = VS::get_singleton()->texture_2d_create(p_image);
VS::get_singleton()->texture_replace(texture, new_texture);
} else {
texture = VS::get_singleton()->texture_2d_create(p_image);
}
VS::get_singleton()->sky_set_texture(get_rid(), texture);
Thread::wait_to_finish(sky_thread);
memdelete(sky_thread);
sky_thread = NULL;
if (regen_queued) {
sky_thread = Thread::create(_thread_function, this);
regen_queued = false;
}
}
void ProceduralSky::_thread_function(void *p_ud) {
ProceduralSky *psky = (ProceduralSky *)p_ud;
psky->call_deferred("_thread_done", psky->_generate_sky());
}
void ProceduralSky::_bind_methods() {
ClassDB::bind_method(D_METHOD("_update_sky"), &ProceduralSky::_update_sky);
ClassDB::bind_method(D_METHOD("set_sky_top_color", "color"), &ProceduralSky::set_sky_top_color);
ClassDB::bind_method(D_METHOD("get_sky_top_color"), &ProceduralSky::get_sky_top_color);
ClassDB::bind_method(D_METHOD("set_sky_horizon_color", "color"), &ProceduralSky::set_sky_horizon_color);
ClassDB::bind_method(D_METHOD("get_sky_horizon_color"), &ProceduralSky::get_sky_horizon_color);
ClassDB::bind_method(D_METHOD("set_sky_curve", "curve"), &ProceduralSky::set_sky_curve);
ClassDB::bind_method(D_METHOD("get_sky_curve"), &ProceduralSky::get_sky_curve);
ClassDB::bind_method(D_METHOD("set_sky_energy", "energy"), &ProceduralSky::set_sky_energy);
ClassDB::bind_method(D_METHOD("get_sky_energy"), &ProceduralSky::get_sky_energy);
ClassDB::bind_method(D_METHOD("set_ground_bottom_color", "color"), &ProceduralSky::set_ground_bottom_color);
ClassDB::bind_method(D_METHOD("get_ground_bottom_color"), &ProceduralSky::get_ground_bottom_color);
ClassDB::bind_method(D_METHOD("set_ground_horizon_color", "color"), &ProceduralSky::set_ground_horizon_color);
ClassDB::bind_method(D_METHOD("get_ground_horizon_color"), &ProceduralSky::get_ground_horizon_color);
ClassDB::bind_method(D_METHOD("set_ground_curve", "curve"), &ProceduralSky::set_ground_curve);
ClassDB::bind_method(D_METHOD("get_ground_curve"), &ProceduralSky::get_ground_curve);
ClassDB::bind_method(D_METHOD("set_ground_energy", "energy"), &ProceduralSky::set_ground_energy);
ClassDB::bind_method(D_METHOD("get_ground_energy"), &ProceduralSky::get_ground_energy);
ClassDB::bind_method(D_METHOD("set_sun_color", "color"), &ProceduralSky::set_sun_color);
ClassDB::bind_method(D_METHOD("get_sun_color"), &ProceduralSky::get_sun_color);
ClassDB::bind_method(D_METHOD("set_sun_latitude", "degrees"), &ProceduralSky::set_sun_latitude);
ClassDB::bind_method(D_METHOD("get_sun_latitude"), &ProceduralSky::get_sun_latitude);
ClassDB::bind_method(D_METHOD("set_sun_longitude", "degrees"), &ProceduralSky::set_sun_longitude);
ClassDB::bind_method(D_METHOD("get_sun_longitude"), &ProceduralSky::get_sun_longitude);
ClassDB::bind_method(D_METHOD("set_sun_angle_min", "degrees"), &ProceduralSky::set_sun_angle_min);
ClassDB::bind_method(D_METHOD("get_sun_angle_min"), &ProceduralSky::get_sun_angle_min);
ClassDB::bind_method(D_METHOD("set_sun_angle_max", "degrees"), &ProceduralSky::set_sun_angle_max);
ClassDB::bind_method(D_METHOD("get_sun_angle_max"), &ProceduralSky::get_sun_angle_max);
ClassDB::bind_method(D_METHOD("set_sun_curve", "curve"), &ProceduralSky::set_sun_curve);
ClassDB::bind_method(D_METHOD("get_sun_curve"), &ProceduralSky::get_sun_curve);
ClassDB::bind_method(D_METHOD("set_sun_energy", "energy"), &ProceduralSky::set_sun_energy);
ClassDB::bind_method(D_METHOD("get_sun_energy"), &ProceduralSky::get_sun_energy);
ClassDB::bind_method(D_METHOD("set_texture_size", "size"), &ProceduralSky::set_texture_size);
ClassDB::bind_method(D_METHOD("get_texture_size"), &ProceduralSky::get_texture_size);
ClassDB::bind_method(D_METHOD("_thread_done", "image"), &ProceduralSky::_thread_done);
ADD_GROUP("Sky", "sky_");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "sky_top_color"), "set_sky_top_color", "get_sky_top_color");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "sky_horizon_color"), "set_sky_horizon_color", "get_sky_horizon_color");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sky_curve", PROPERTY_HINT_EXP_EASING), "set_sky_curve", "get_sky_curve");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sky_energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_sky_energy", "get_sky_energy");
ADD_GROUP("Ground", "ground_");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "ground_bottom_color"), "set_ground_bottom_color", "get_ground_bottom_color");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "ground_horizon_color"), "set_ground_horizon_color", "get_ground_horizon_color");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ground_curve", PROPERTY_HINT_EXP_EASING), "set_ground_curve", "get_ground_curve");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ground_energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_ground_energy", "get_ground_energy");
ADD_GROUP("Sun", "sun_");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "sun_color"), "set_sun_color", "get_sun_color");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_latitude", PROPERTY_HINT_RANGE, "-180,180,0.01"), "set_sun_latitude", "get_sun_latitude");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_longitude", PROPERTY_HINT_RANGE, "-180,180,0.01"), "set_sun_longitude", "get_sun_longitude");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_angle_min", PROPERTY_HINT_RANGE, "0,360,0.01"), "set_sun_angle_min", "get_sun_angle_min");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_angle_max", PROPERTY_HINT_RANGE, "0,360,0.01"), "set_sun_angle_max", "get_sun_angle_max");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_curve", PROPERTY_HINT_EXP_EASING), "set_sun_curve", "get_sun_curve");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_sun_energy", "get_sun_energy");
ADD_GROUP("Texture2D", "texture_");
ADD_PROPERTY(PropertyInfo(Variant::INT, "texture_size", PROPERTY_HINT_ENUM, "256,512,1024,2048,4096"), "set_texture_size", "get_texture_size");
BIND_ENUM_CONSTANT(TEXTURE_SIZE_256);
BIND_ENUM_CONSTANT(TEXTURE_SIZE_512);
BIND_ENUM_CONSTANT(TEXTURE_SIZE_1024);
BIND_ENUM_CONSTANT(TEXTURE_SIZE_2048);
BIND_ENUM_CONSTANT(TEXTURE_SIZE_4096);
BIND_ENUM_CONSTANT(TEXTURE_SIZE_MAX);
}
ProceduralSky::ProceduralSky(bool p_desaturate) {
update_queued = false;
sky_top_color = Color::hex(0xa5d6f1ff);
sky_horizon_color = Color::hex(0xd6eafaff);
sky_curve = 0.09;
sky_energy = 1;
ground_bottom_color = Color::hex(0x282f36ff);
ground_horizon_color = Color::hex(0x6c655fff);
ground_curve = 0.02;
ground_energy = 1;
if (p_desaturate) {
sky_top_color.set_hsv(sky_top_color.get_h(), 0, sky_top_color.get_v());
sky_horizon_color.set_hsv(sky_horizon_color.get_h(), 0, sky_horizon_color.get_v());
ground_bottom_color.set_hsv(ground_bottom_color.get_h(), 0, ground_bottom_color.get_v());
ground_horizon_color.set_hsv(ground_horizon_color.get_h(), 0, ground_horizon_color.get_v());
}
sun_color = Color(1, 1, 1);
sun_latitude = 35;
sun_longitude = 0;
sun_angle_min = 1;
sun_angle_max = 100;
sun_curve = 0.05;
sun_energy = 1;
texture_size = TEXTURE_SIZE_1024;
sky_thread = NULL;
regen_queued = false;
first_time = true;
_queue_update();
}
ProceduralSky::~ProceduralSky() {
if (sky_thread) {
Thread::wait_to_finish(sky_thread);
memdelete(sky_thread);
sky_thread = NULL;
}
if (texture.is_valid()) {
VS::get_singleton()->free(texture);
}
}
}
+5 -125
View File
@@ -32,6 +32,7 @@
#define SKY_H
#include "core/os/thread.h"
#include "scene/resources/material.h"
#include "scene/resources/texture.h"
class Sky : public Resource {
@@ -58,6 +59,7 @@ private:
RID sky;
ProcessMode mode;
RadianceSize radiance_size;
Ref<Material> sky_material;
protected:
static void _bind_methods();
@@ -69,6 +71,9 @@ public:
void set_process_mode(ProcessMode p_mode);
ProcessMode get_process_mode() const;
void set_material(const Ref<Material> &p_material);
Ref<Material> get_material() const;
virtual RID get_rid() const;
Sky();
@@ -78,129 +83,4 @@ public:
VARIANT_ENUM_CAST(Sky::RadianceSize)
VARIANT_ENUM_CAST(Sky::ProcessMode)
class PanoramaSky : public Sky {
GDCLASS(PanoramaSky, Sky);
private:
Ref<Texture2D> panorama;
protected:
static void _bind_methods();
public:
void set_panorama(const Ref<Texture2D> &p_panorama);
Ref<Texture2D> get_panorama() const;
PanoramaSky();
~PanoramaSky();
};
class ProceduralSky : public Sky {
GDCLASS(ProceduralSky, Sky);
public:
enum TextureSize {
TEXTURE_SIZE_256,
TEXTURE_SIZE_512,
TEXTURE_SIZE_1024,
TEXTURE_SIZE_2048,
TEXTURE_SIZE_4096,
TEXTURE_SIZE_MAX
};
private:
Thread *sky_thread;
Color sky_top_color;
Color sky_horizon_color;
float sky_curve;
float sky_energy;
Color ground_bottom_color;
Color ground_horizon_color;
float ground_curve;
float ground_energy;
Color sun_color;
float sun_latitude;
float sun_longitude;
float sun_angle_min;
float sun_angle_max;
float sun_curve;
float sun_energy;
TextureSize texture_size;
RID texture;
bool update_queued;
bool regen_queued;
bool first_time;
void _thread_done(const Ref<Image> &p_image);
static void _thread_function(void *p_ud);
protected:
static void _bind_methods();
Ref<Image> _generate_sky();
void _update_sky();
void _queue_update();
public:
void set_sky_top_color(const Color &p_sky_top);
Color get_sky_top_color() const;
void set_sky_horizon_color(const Color &p_sky_horizon);
Color get_sky_horizon_color() const;
void set_sky_curve(float p_curve);
float get_sky_curve() const;
void set_sky_energy(float p_energy);
float get_sky_energy() const;
void set_ground_bottom_color(const Color &p_ground_bottom);
Color get_ground_bottom_color() const;
void set_ground_horizon_color(const Color &p_ground_horizon);
Color get_ground_horizon_color() const;
void set_ground_curve(float p_curve);
float get_ground_curve() const;
void set_ground_energy(float p_energy);
float get_ground_energy() const;
void set_sun_color(const Color &p_sun);
Color get_sun_color() const;
void set_sun_latitude(float p_angle);
float get_sun_latitude() const;
void set_sun_longitude(float p_angle);
float get_sun_longitude() const;
void set_sun_angle_min(float p_angle);
float get_sun_angle_min() const;
void set_sun_angle_max(float p_angle);
float get_sun_angle_max() const;
void set_sun_curve(float p_curve);
float get_sun_curve() const;
void set_sun_energy(float p_energy);
float get_sun_energy() const;
void set_texture_size(TextureSize p_size);
TextureSize get_texture_size() const;
ProceduralSky(bool p_desaturate = false);
~ProceduralSky();
};
VARIANT_ENUM_CAST(ProceduralSky::TextureSize)
#endif // SKY_H
+626
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@@ -0,0 +1,626 @@
/*************************************************************************/
/* sky_material.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 "sky_material.h"
void ProceduralSkyMaterial::set_sky_top_color(const Color &p_sky_top) {
sky_top_color = p_sky_top;
VS::get_singleton()->material_set_param(_get_material(), "sky_top_color", sky_top_color.to_linear());
}
Color ProceduralSkyMaterial::get_sky_top_color() const {
return sky_top_color;
}
void ProceduralSkyMaterial::set_sky_horizon_color(const Color &p_sky_horizon) {
sky_horizon_color = p_sky_horizon;
VS::get_singleton()->material_set_param(_get_material(), "sky_horizon_color", sky_horizon_color.to_linear());
}
Color ProceduralSkyMaterial::get_sky_horizon_color() const {
return sky_horizon_color;
}
void ProceduralSkyMaterial::set_sky_curve(float p_curve) {
sky_curve = p_curve;
VS::get_singleton()->material_set_param(_get_material(), "sky_curve", sky_curve);
}
float ProceduralSkyMaterial::get_sky_curve() const {
return sky_curve;
}
void ProceduralSkyMaterial::set_sky_energy(float p_energy) {
sky_energy = p_energy;
VS::get_singleton()->material_set_param(_get_material(), "sky_energy", sky_energy);
}
float ProceduralSkyMaterial::get_sky_energy() const {
return sky_energy;
}
void ProceduralSkyMaterial::set_ground_bottom_color(const Color &p_ground_bottom) {
ground_bottom_color = p_ground_bottom;
VS::get_singleton()->material_set_param(_get_material(), "ground_bottom_color", ground_bottom_color.to_linear());
}
Color ProceduralSkyMaterial::get_ground_bottom_color() const {
return ground_bottom_color;
}
void ProceduralSkyMaterial::set_ground_horizon_color(const Color &p_ground_horizon) {
ground_horizon_color = p_ground_horizon;
VS::get_singleton()->material_set_param(_get_material(), "ground_horizon_color", ground_horizon_color.to_linear());
}
Color ProceduralSkyMaterial::get_ground_horizon_color() const {
return ground_horizon_color;
}
void ProceduralSkyMaterial::set_ground_curve(float p_curve) {
ground_curve = p_curve;
VS::get_singleton()->material_set_param(_get_material(), "ground_curve", ground_curve);
}
float ProceduralSkyMaterial::get_ground_curve() const {
return ground_curve;
}
void ProceduralSkyMaterial::set_ground_energy(float p_energy) {
ground_energy = p_energy;
VS::get_singleton()->material_set_param(_get_material(), "ground_energy", ground_energy);
}
float ProceduralSkyMaterial::get_ground_energy() const {
return ground_energy;
}
void ProceduralSkyMaterial::set_sun_angle_min(float p_angle) {
sun_angle_min = p_angle;
VS::get_singleton()->material_set_param(_get_material(), "sun_angle_min", Math::deg2rad(sun_angle_min));
}
float ProceduralSkyMaterial::get_sun_angle_min() const {
return sun_angle_min;
}
void ProceduralSkyMaterial::set_sun_angle_max(float p_angle) {
sun_angle_max = p_angle;
VS::get_singleton()->material_set_param(_get_material(), "sun_angle_max", Math::deg2rad(sun_angle_max));
}
float ProceduralSkyMaterial::get_sun_angle_max() const {
return sun_angle_max;
}
void ProceduralSkyMaterial::set_sun_curve(float p_curve) {
sun_curve = p_curve;
VS::get_singleton()->material_set_param(_get_material(), "sun_curve", sun_curve);
}
float ProceduralSkyMaterial::get_sun_curve() const {
return sun_curve;
}
bool ProceduralSkyMaterial::_can_do_next_pass() const {
return false;
}
Shader::Mode ProceduralSkyMaterial::get_shader_mode() const {
return Shader::MODE_SKY;
}
RID ProceduralSkyMaterial::get_shader_rid() const {
return shader;
}
void ProceduralSkyMaterial::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_sky_top_color", "color"), &ProceduralSkyMaterial::set_sky_top_color);
ClassDB::bind_method(D_METHOD("get_sky_top_color"), &ProceduralSkyMaterial::get_sky_top_color);
ClassDB::bind_method(D_METHOD("set_sky_horizon_color", "color"), &ProceduralSkyMaterial::set_sky_horizon_color);
ClassDB::bind_method(D_METHOD("get_sky_horizon_color"), &ProceduralSkyMaterial::get_sky_horizon_color);
ClassDB::bind_method(D_METHOD("set_sky_curve", "curve"), &ProceduralSkyMaterial::set_sky_curve);
ClassDB::bind_method(D_METHOD("get_sky_curve"), &ProceduralSkyMaterial::get_sky_curve);
ClassDB::bind_method(D_METHOD("set_sky_energy", "energy"), &ProceduralSkyMaterial::set_sky_energy);
ClassDB::bind_method(D_METHOD("get_sky_energy"), &ProceduralSkyMaterial::get_sky_energy);
ClassDB::bind_method(D_METHOD("set_ground_bottom_color", "color"), &ProceduralSkyMaterial::set_ground_bottom_color);
ClassDB::bind_method(D_METHOD("get_ground_bottom_color"), &ProceduralSkyMaterial::get_ground_bottom_color);
ClassDB::bind_method(D_METHOD("set_ground_horizon_color", "color"), &ProceduralSkyMaterial::set_ground_horizon_color);
ClassDB::bind_method(D_METHOD("get_ground_horizon_color"), &ProceduralSkyMaterial::get_ground_horizon_color);
ClassDB::bind_method(D_METHOD("set_ground_curve", "curve"), &ProceduralSkyMaterial::set_ground_curve);
ClassDB::bind_method(D_METHOD("get_ground_curve"), &ProceduralSkyMaterial::get_ground_curve);
ClassDB::bind_method(D_METHOD("set_ground_energy", "energy"), &ProceduralSkyMaterial::set_ground_energy);
ClassDB::bind_method(D_METHOD("get_ground_energy"), &ProceduralSkyMaterial::get_ground_energy);
ClassDB::bind_method(D_METHOD("set_sun_angle_min", "degrees"), &ProceduralSkyMaterial::set_sun_angle_min);
ClassDB::bind_method(D_METHOD("get_sun_angle_min"), &ProceduralSkyMaterial::get_sun_angle_min);
ClassDB::bind_method(D_METHOD("set_sun_angle_max", "degrees"), &ProceduralSkyMaterial::set_sun_angle_max);
ClassDB::bind_method(D_METHOD("get_sun_angle_max"), &ProceduralSkyMaterial::get_sun_angle_max);
ClassDB::bind_method(D_METHOD("set_sun_curve", "curve"), &ProceduralSkyMaterial::set_sun_curve);
ClassDB::bind_method(D_METHOD("get_sun_curve"), &ProceduralSkyMaterial::get_sun_curve);
ADD_GROUP("Sky", "sky_");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "sky_top_color"), "set_sky_top_color", "get_sky_top_color");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "sky_horizon_color"), "set_sky_horizon_color", "get_sky_horizon_color");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sky_curve", PROPERTY_HINT_EXP_EASING), "set_sky_curve", "get_sky_curve");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sky_energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_sky_energy", "get_sky_energy");
ADD_GROUP("Ground", "ground_");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "ground_bottom_color"), "set_ground_bottom_color", "get_ground_bottom_color");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "ground_horizon_color"), "set_ground_horizon_color", "get_ground_horizon_color");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ground_curve", PROPERTY_HINT_EXP_EASING), "set_ground_curve", "get_ground_curve");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ground_energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_ground_energy", "get_ground_energy");
ADD_GROUP("Sun", "sun_");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_angle_min", PROPERTY_HINT_RANGE, "0,360,0.01"), "set_sun_angle_min", "get_sun_angle_min");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_angle_max", PROPERTY_HINT_RANGE, "0,360,0.01"), "set_sun_angle_max", "get_sun_angle_max");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_curve", PROPERTY_HINT_EXP_EASING), "set_sun_curve", "get_sun_curve");
}
ProceduralSkyMaterial::ProceduralSkyMaterial() {
String code = "shader_type sky;\n\n";
code += "uniform vec4 sky_top_color : hint_color = vec4(0.35, 0.46, 0.71, 1.0);\n";
code += "uniform vec4 sky_horizon_color : hint_color = vec4(0.55, 0.69, 0.81, 1.0);\n";
code += "uniform float sky_curve : hint_range(0, 1) = 0.09;\n";
code += "uniform float sky_energy = 1.0;\n\n";
code += "uniform vec4 ground_bottom_color : hint_color = vec4(0.12, 0.12, 0.13, 1.0);\n";
code += "uniform vec4 ground_horizon_color : hint_color = vec4(0.37, 0.33, 0.31, 1.0);\n";
code += "uniform float ground_curve : hint_range(0, 1) = 0.02;\n";
code += "uniform float ground_energy = 1.0;\n\n";
code += "uniform float sun_angle_min = 0.01;\n";
code += "uniform float sun_angle_max = 1.0;\n";
code += "uniform float sun_curve : hint_range(0, 1) = 0.05;\n\n";
code += "const float PI = 3.1415926535897932384626433833;\n\n";
code += "void fragment() {\n";
code += "\tfloat v_angle = acos(clamp(EYEDIR.y, -1.0, 1.0));\n";
code += "\tfloat c = (1.0 - v_angle / (PI * 0.5));\n";
code += "\tvec3 sky = mix(sky_horizon_color.rgb, sky_top_color.rgb, clamp(1.0 - pow(1.0 - c, 1.0 / sky_curve), 0.0, 1.0));\n";
code += "\tsky *= sky_energy;\n";
code += "\tif (LIGHT0_ENABLED) {\n";
code += "\t\tfloat sun_angle = acos(dot(LIGHT0_DIRECTION, EYEDIR));\n";
code += "\t\tif (sun_angle < sun_angle_min) {\n";
code += "\t\t\tsky = LIGHT0_COLOR * LIGHT0_ENERGY;\n";
code += "\t\t} else if (sun_angle < sun_angle_max) {\n";
code += "\t\t\tfloat c2 = (sun_angle - sun_angle_min) / (sun_angle_max - sun_angle_min);\n";
code += "\t\t\tsky = mix(LIGHT0_COLOR * LIGHT0_ENERGY, sky, clamp(1.0 - pow(1.0 - c2, 1.0 / sun_curve), 0.0, 1.0));\n";
code += "\t\t}\n";
code += "\t}\n";
code += "\tif (LIGHT1_ENABLED) {\n";
code += "\t\tfloat sun_angle = acos(dot(LIGHT1_DIRECTION, EYEDIR));\n";
code += "\t\tif (sun_angle < sun_angle_min) {\n";
code += "\t\t\tsky = LIGHT1_COLOR * LIGHT1_ENERGY;\n";
code += "\t\t} else if (sun_angle < sun_angle_max) {\n";
code += "\t\t\tfloat c2 = (sun_angle - sun_angle_min) / (sun_angle_max - sun_angle_min);\n";
code += "\t\t\tsky = mix(LIGHT1_COLOR * LIGHT1_ENERGY, sky, clamp(1.0 - pow(1.0 - c2, 1.0 / sun_curve), 0.0, 1.0));\n";
code += "\t\t}\n";
code += "\t}\n";
code += "\tif (LIGHT2_ENABLED) {\n";
code += "\t\tfloat sun_angle = acos(dot(LIGHT2_DIRECTION, EYEDIR));\n";
code += "\t\tif (sun_angle < sun_angle_min) {\n";
code += "\t\t\tsky = LIGHT2_COLOR * LIGHT2_ENERGY;\n";
code += "\t\t} else if (sun_angle < sun_angle_max) {\n";
code += "\t\t\tfloat c2 = (sun_angle - sun_angle_min) / (sun_angle_max - sun_angle_min);\n";
code += "\t\t\tsky = mix(LIGHT2_COLOR * LIGHT2_ENERGY, sky, clamp(1.0 - pow(1.0 - c2, 1.0 / sun_curve), 0.0, 1.0));\n";
code += "\t\t}\n";
code += "\t}\n";
code += "\tif (LIGHT3_ENABLED) {\n";
code += "\t\tfloat sun_angle = acos(dot(LIGHT3_DIRECTION, EYEDIR));\n";
code += "\t\tif (sun_angle < sun_angle_min) {\n";
code += "\t\t\tsky = LIGHT3_COLOR * LIGHT3_ENERGY;\n";
code += "\t\t} else if (sun_angle < sun_angle_max) {\n";
code += "\t\t\tfloat c2 = (sun_angle - sun_angle_min) / (sun_angle_max - sun_angle_min);\n";
code += "\t\t\tsky = mix(LIGHT3_COLOR * LIGHT3_ENERGY, sky, clamp(1.0 - pow(1.0 - c2, 1.0 / sun_curve), 0.0, 1.0));\n";
code += "\t\t}\n";
code += "\t}\n";
code += "\tc = (v_angle - (PI * 0.5)) / (PI * 0.5);\n";
code += "\tvec3 ground = mix(ground_horizon_color.rgb, ground_bottom_color.rgb, clamp(1.0 - pow(1.0 - c, 1.0 / ground_curve), 0.0, 1.0));\n";
code += "\tground *= ground_energy;\n";
code += "\tCOLOR = mix(ground, sky, step(0.0, EYEDIR.y));\n";
code += "}\n";
shader = VS::get_singleton()->shader_create();
VS::get_singleton()->shader_set_code(shader, code);
VS::get_singleton()->material_set_shader(_get_material(), shader);
set_sky_top_color(Color(0.35, 0.46, 0.71));
set_sky_horizon_color(Color(0.55, 0.69, 0.81));
set_sky_curve(0.09);
set_sky_energy(1.0);
set_ground_bottom_color(Color(0.12, 0.12, 0.13));
set_ground_horizon_color(Color(0.37, 0.33, 0.31));
set_ground_curve(0.02);
set_ground_energy(1.0);
set_sun_angle_min(1.0);
set_sun_angle_max(100.0);
set_sun_curve(0.05);
}
ProceduralSkyMaterial::~ProceduralSkyMaterial() {
}
/////////////////////////////////////////
/* PanoramaSkyMaterial */
void PanoramaSkyMaterial::set_panorama(const Ref<Texture2D> &p_panorama) {
panorama = p_panorama;
VS::get_singleton()->material_set_param(_get_material(), "source_panorama", panorama);
}
Ref<Texture2D> PanoramaSkyMaterial::get_panorama() const {
return panorama;
}
bool PanoramaSkyMaterial::_can_do_next_pass() const {
return false;
}
Shader::Mode PanoramaSkyMaterial::get_shader_mode() const {
return Shader::MODE_SKY;
}
RID PanoramaSkyMaterial::get_shader_rid() const {
return shader;
}
void PanoramaSkyMaterial::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_panorama", "texture"), &PanoramaSkyMaterial::set_panorama);
ClassDB::bind_method(D_METHOD("get_panorama"), &PanoramaSkyMaterial::get_panorama);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "panorama", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_panorama", "get_panorama");
}
PanoramaSkyMaterial::PanoramaSkyMaterial() {
String code = "shader_type sky;\n\n";
code += "uniform sampler2D source_panorama : filter_linear;\n";
code += "void fragment() {\n";
code += "\tCOLOR = texture(source_panorama, SKY_COORDS).rgb;\n";
code += "}";
shader = VS::get_singleton()->shader_create();
VS::get_singleton()->shader_set_code(shader, code);
VS::get_singleton()->material_set_shader(_get_material(), shader);
}
PanoramaSkyMaterial::~PanoramaSkyMaterial() {
VS::get_singleton()->free(shader);
VS::get_singleton()->material_set_shader(_get_material(), RID());
}
//////////////////////////////////
/* PhysicalSkyMaterial */
void PhysicalSkyMaterial::set_rayleigh_coefficient(float p_rayleigh) {
rayleigh = p_rayleigh;
VS::get_singleton()->material_set_param(_get_material(), "rayleigh", rayleigh);
}
float PhysicalSkyMaterial::get_rayleigh_coefficient() const {
return rayleigh;
}
void PhysicalSkyMaterial::set_rayleigh_color(Color p_rayleigh_color) {
rayleigh_color = p_rayleigh_color;
VS::get_singleton()->material_set_param(_get_material(), "rayleigh_color", rayleigh_color);
}
Color PhysicalSkyMaterial::get_rayleigh_color() const {
return rayleigh_color;
}
void PhysicalSkyMaterial::set_mie_coefficient(float p_mie) {
mie = p_mie;
VS::get_singleton()->material_set_param(_get_material(), "mie", mie);
}
float PhysicalSkyMaterial::get_mie_coefficient() const {
return mie;
}
void PhysicalSkyMaterial::set_mie_eccentricity(float p_eccentricity) {
mie_eccentricity = p_eccentricity;
VS::get_singleton()->material_set_param(_get_material(), "mie_eccentricity", mie_eccentricity);
}
float PhysicalSkyMaterial::get_mie_eccentricity() const {
return mie_eccentricity;
}
void PhysicalSkyMaterial::set_mie_color(Color p_mie_color) {
mie_color = p_mie_color;
VS::get_singleton()->material_set_param(_get_material(), "mie_color", mie_color);
}
Color PhysicalSkyMaterial::get_mie_color() const {
return mie_color;
}
void PhysicalSkyMaterial::set_turbidity(float p_turbidity) {
turbidity = p_turbidity;
VS::get_singleton()->material_set_param(_get_material(), "turbidity", turbidity);
}
float PhysicalSkyMaterial::get_turbidity() const {
return turbidity;
}
void PhysicalSkyMaterial::set_sun_disk_scale(float p_sun_disk_scale) {
sun_disk_scale = p_sun_disk_scale;
VS::get_singleton()->material_set_param(_get_material(), "sun_disk_scale", sun_disk_scale);
}
float PhysicalSkyMaterial::get_sun_disk_scale() const {
return sun_disk_scale;
}
void PhysicalSkyMaterial::set_ground_color(Color p_ground_color) {
ground_color = p_ground_color;
VS::get_singleton()->material_set_param(_get_material(), "ground_color", ground_color);
}
Color PhysicalSkyMaterial::get_ground_color() const {
return ground_color;
}
void PhysicalSkyMaterial::set_exposure(float p_exposure) {
exposure = p_exposure;
VS::get_singleton()->material_set_param(_get_material(), "exposure", exposure);
}
float PhysicalSkyMaterial::get_exposure() const {
return exposure;
}
void PhysicalSkyMaterial::set_dither_strength(float p_dither_strength) {
dither_strength = p_dither_strength;
VS::get_singleton()->material_set_param(_get_material(), "dither_strength", dither_strength);
}
float PhysicalSkyMaterial::get_dither_strength() const {
return dither_strength;
}
bool PhysicalSkyMaterial::_can_do_next_pass() const {
return false;
}
Shader::Mode PhysicalSkyMaterial::get_shader_mode() const {
return Shader::MODE_SKY;
}
RID PhysicalSkyMaterial::get_shader_rid() const {
return shader;
}
void PhysicalSkyMaterial::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_rayleigh_coefficient", "rayleigh"), &PhysicalSkyMaterial::set_rayleigh_coefficient);
ClassDB::bind_method(D_METHOD("get_rayleigh_coefficient"), &PhysicalSkyMaterial::get_rayleigh_coefficient);
ClassDB::bind_method(D_METHOD("set_rayleigh_color", "color"), &PhysicalSkyMaterial::set_rayleigh_color);
ClassDB::bind_method(D_METHOD("get_rayleigh_color"), &PhysicalSkyMaterial::get_rayleigh_color);
ClassDB::bind_method(D_METHOD("set_mie_coefficient", "mie"), &PhysicalSkyMaterial::set_mie_coefficient);
ClassDB::bind_method(D_METHOD("get_mie_coefficient"), &PhysicalSkyMaterial::get_mie_coefficient);
ClassDB::bind_method(D_METHOD("set_mie_eccentricity", "eccentricity"), &PhysicalSkyMaterial::set_mie_eccentricity);
ClassDB::bind_method(D_METHOD("get_mie_eccentricity"), &PhysicalSkyMaterial::get_mie_eccentricity);
ClassDB::bind_method(D_METHOD("set_mie_color", "color"), &PhysicalSkyMaterial::set_mie_color);
ClassDB::bind_method(D_METHOD("get_mie_color"), &PhysicalSkyMaterial::get_mie_color);
ClassDB::bind_method(D_METHOD("set_turbidity", "turbidity"), &PhysicalSkyMaterial::set_turbidity);
ClassDB::bind_method(D_METHOD("get_turbidity"), &PhysicalSkyMaterial::get_turbidity);
ClassDB::bind_method(D_METHOD("set_sun_disk_scale", "scale"), &PhysicalSkyMaterial::set_sun_disk_scale);
ClassDB::bind_method(D_METHOD("get_sun_disk_scale"), &PhysicalSkyMaterial::get_sun_disk_scale);
ClassDB::bind_method(D_METHOD("set_ground_color", "color"), &PhysicalSkyMaterial::set_ground_color);
ClassDB::bind_method(D_METHOD("get_ground_color"), &PhysicalSkyMaterial::get_ground_color);
ClassDB::bind_method(D_METHOD("set_exposure", "exposure"), &PhysicalSkyMaterial::set_exposure);
ClassDB::bind_method(D_METHOD("get_exposure"), &PhysicalSkyMaterial::get_exposure);
ClassDB::bind_method(D_METHOD("set_dither_strength", "strength"), &PhysicalSkyMaterial::set_dither_strength);
ClassDB::bind_method(D_METHOD("get_dither_strength"), &PhysicalSkyMaterial::get_dither_strength);
ADD_GROUP("Rayleigh", "rayleigh_");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "rayleigh_coefficient", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_rayleigh_coefficient", "get_rayleigh_coefficient");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "rayleigh_color"), "set_rayleigh_color", "get_rayleigh_color");
ADD_GROUP("Mie", "mie_");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "mie_coefficient", PROPERTY_HINT_RANGE, "0,1,0.001"), "set_mie_coefficient", "get_mie_coefficient");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "mie_eccentricity", PROPERTY_HINT_RANGE, "-1,1,0.01"), "set_mie_eccentricity", "get_mie_eccentricity");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "mie_color"), "set_mie_color", "get_mie_color");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "turbidity", PROPERTY_HINT_RANGE, "0,1000,0.01"), "set_turbidity", "get_turbidity");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_disk_scale", PROPERTY_HINT_RANGE, "0,360,0.01"), "set_sun_disk_scale", "get_sun_disk_scale");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "ground_color"), "set_ground_color", "get_ground_color");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "exposure", PROPERTY_HINT_RANGE, "0,128,0.01"), "set_exposure", "get_exposure");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "dither_strength", PROPERTY_HINT_RANGE, "0,10,0.01"), "set_dither_strength", "get_dither_strength");
}
PhysicalSkyMaterial::PhysicalSkyMaterial() {
String code = "shader_type sky;\n\n";
code += "uniform float rayleigh : hint_range(0, 64) = 2.0;\n";
code += "uniform vec4 rayleigh_color : hint_color = vec4(0.056, 0.14, 0.3, 1.0);\n";
code += "uniform float mie : hint_range(0, 1) = 0.005;\n";
code += "uniform float mie_eccentricity : hint_range(-1, 1) = 0.8;\n";
code += "uniform vec4 mie_color : hint_color = vec4(0.36, 0.56, 0.82, 1.0);\n\n";
code += "uniform float turbidity : hint_range(0, 1000) = 10.0;\n";
code += "uniform float sun_disk_scale : hint_range(0, 360) = 1.0;\n";
code += "uniform vec4 ground_color : hint_color = vec4(1.0);\n";
code += "uniform float exposure : hint_range(0, 128) = 0.1;\n";
code += "uniform float dither_strength : hint_range(0, 10) = 1.0;\n\n";
code += "const float PI = 3.141592653589793238462643383279502884197169;\n";
code += "const vec3 UP = vec3( 0.0, 1.0, 0.0 );\n\n";
code += "// Sun constants\n";
code += "const float SOL_SIZE = 0.00872663806;\n";
code += "const float SUN_ENERGY = 1000.0;\n\n";
code += "// optical length at zenith for molecules\n";
code += "const float rayleigh_zenith_size = 8.4e3;\n";
code += "const float mie_zenith_size = 1.25e3;\n\n";
code += "float henyey_greenstein(float cos_theta, float g) {\n";
code += "\tconst float k = 0.0795774715459;\n";
code += "\treturn k * (1.0 - g * g) / (pow(1.0 + g * g - 2.0 * g * cos_theta, 1.5));\n";
code += "}\n\n";
code += "// From: https://www.shadertoy.com/view/4sfGzS credit to iq\n";
code += "float hash(vec3 p) {\n";
code += "\tp = fract( p * 0.3183099 + 0.1 );\n";
code += "\tp *= 17.0;\n";
code += "\treturn fract(p.x * p.y * p.z * (p.x + p.y + p.z));\n";
code += "}\n\n";
code += "void fragment() {\n";
code += "\tfloat zenith_angle = clamp( dot(UP, normalize(LIGHT0_DIRECTION)), -1.0, 1.0 );\n";
code += "\tfloat sun_energy = max(0.0, 1.0 - exp(-((PI * 0.5) - acos(zenith_angle)))) * SUN_ENERGY * LIGHT0_ENERGY;\n";
code += "\tfloat sun_fade = 1.0 - clamp(1.0 - exp(LIGHT0_DIRECTION.y), 0.0, 1.0);\n\n";
code += "\t// rayleigh coefficients\n";
code += "\tfloat rayleigh_coefficient = rayleigh - ( 1.0 * ( 1.0 - sun_fade ) );\n";
code += "\tvec3 rayleigh_beta = rayleigh_coefficient * rayleigh_color.rgb * 0.0001;\n";
code += "\t// mie coefficients from Preetham\n";
code += "\tvec3 mie_beta = turbidity * mie * mie_color.rgb * 0.000434;\n\n";
code += "\t// optical length\n";
code += "\tfloat zenith = acos(max(0.0, dot(UP, EYEDIR)));\n";
code += "\tfloat optical_mass = 1.0 / (cos(zenith) + 0.15 * pow(93.885 - degrees(zenith), -1.253));\n";
code += "\tfloat rayleigh_scatter = rayleigh_zenith_size * optical_mass;\n";
code += "\tfloat mie_scatter = mie_zenith_size * optical_mass;\n\n";
code += "\t// light extinction based on thickness of atmosphere\n";
code += "\tvec3 extinction = exp(-(rayleigh_beta * rayleigh_scatter + mie_beta * mie_scatter));\n\n";
code += "\t// in scattering\n";
code += "\tfloat cos_theta = dot(EYEDIR, normalize(LIGHT0_DIRECTION));\n\n";
code += "\tfloat rayleigh_phase = (3.0 / (16.0 * PI)) * (1.0 + pow(cos_theta * 0.5 + 0.5, 2.0));\n";
code += "\tvec3 betaRTheta = rayleigh_beta * rayleigh_phase;\n\n";
code += "\tfloat mie_phase = henyey_greenstein(cos_theta, mie_eccentricity);\n";
code += "\tvec3 betaMTheta = mie_beta * mie_phase;\n\n";
code += "\tvec3 Lin = pow(sun_energy * ((betaRTheta + betaMTheta) / (rayleigh_beta + mie_beta)) * (1.0 - extinction), vec3(1.5));\n";
code += "\t// Hack from https://github.com/mrdoob/three.js/blob/master/examples/jsm/objects/Sky.js\n";
code += "\tLin *= mix(vec3(1.0), pow(sun_energy * ((betaRTheta + betaMTheta) / (rayleigh_beta + mie_beta)) * extinction, vec3(0.5)), clamp(pow(1.0 - zenith_angle, 5.0), 0.0, 1.0));\n\n";
code += "\t// Hack in the ground color\n";
code += "\tLin *= mix(ground_color.rgb, vec3(1.0), smoothstep(-0.1, 0.1, dot(UP, EYEDIR)));\n\n";
code += "\t// Solar disk and out-scattering\n";
code += "\tfloat sunAngularDiameterCos = cos(SOL_SIZE * sun_disk_scale);\n";
code += "\tfloat sunAngularDiameterCos2 = cos(SOL_SIZE * sun_disk_scale*0.5);\n";
code += "\tfloat sundisk = smoothstep(sunAngularDiameterCos, sunAngularDiameterCos2, cos_theta);\n";
code += "\tvec3 L0 = (sun_energy * 1900.0 * extinction) * sundisk * LIGHT0_COLOR;\n";
code += "\t// Note: Add nightime here: L0 += night_sky * extinction\n\n";
code += "\tvec3 color = (Lin + L0) * 0.04;\n";
code += "\tCOLOR = pow(color, vec3(1.0 / (1.2 + (1.2 * sun_fade))));\n";
code += "\tCOLOR *= exposure;\n";
code += "\t// Make optional, eliminates banding\n";
code += "\tCOLOR += (hash(EYEDIR * 1741.9782) * 0.08 - 0.04) * 0.008 * dither_strength;\n";
code += "}\n";
shader = VS::get_singleton()->shader_create();
VS::get_singleton()->shader_set_code(shader, code);
VS::get_singleton()->material_set_shader(_get_material(), shader);
set_rayleigh_coefficient(2.0);
set_rayleigh_color(Color(0.056, 0.14, 0.3));
set_mie_coefficient(0.005);
set_mie_eccentricity(0.8);
set_mie_color(Color(0.36, 0.56, 0.82));
set_turbidity(10.0);
set_sun_disk_scale(1.0);
set_ground_color(Color(1.0, 1.0, 1.0));
set_exposure(0.1);
set_dither_strength(1.0);
}
PhysicalSkyMaterial::~PhysicalSkyMaterial() {
VS::get_singleton()->free(shader);
VS::get_singleton()->material_set_shader(_get_material(), RID());
}
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/*************************************************************************/
/* sky_material.h */
/*************************************************************************/
/* 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 "core/rid.h"
#include "scene/resources/material.h"
#ifndef SKY_MATERIAL_H
#define SKY_MATERIAL_H
class ProceduralSkyMaterial : public Material {
GDCLASS(ProceduralSkyMaterial, Material);
private:
Color sky_top_color;
Color sky_horizon_color;
float sky_curve;
float sky_energy;
Color ground_bottom_color;
Color ground_horizon_color;
float ground_curve;
float ground_energy;
float sun_angle_min;
float sun_angle_max;
float sun_curve;
RID shader;
protected:
static void _bind_methods();
virtual bool _can_do_next_pass() const;
public:
void set_sky_top_color(const Color &p_sky_top);
Color get_sky_top_color() const;
void set_sky_horizon_color(const Color &p_sky_horizon);
Color get_sky_horizon_color() const;
void set_sky_curve(float p_curve);
float get_sky_curve() const;
void set_sky_energy(float p_energy);
float get_sky_energy() const;
void set_ground_bottom_color(const Color &p_ground_bottom);
Color get_ground_bottom_color() const;
void set_ground_horizon_color(const Color &p_ground_horizon);
Color get_ground_horizon_color() const;
void set_ground_curve(float p_curve);
float get_ground_curve() const;
void set_ground_energy(float p_energy);
float get_ground_energy() const;
void set_sun_angle_min(float p_angle);
float get_sun_angle_min() const;
void set_sun_angle_max(float p_angle);
float get_sun_angle_max() const;
void set_sun_curve(float p_curve);
float get_sun_curve() const;
virtual Shader::Mode get_shader_mode() const;
RID get_shader_rid() const;
ProceduralSkyMaterial();
~ProceduralSkyMaterial();
};
//////////////////////////////////////////////////////
/* PanoramaSkyMaterial */
class PanoramaSkyMaterial : public Material {
GDCLASS(PanoramaSkyMaterial, Material);
private:
Ref<Texture2D> panorama;
RID shader;
protected:
static void _bind_methods();
virtual bool _can_do_next_pass() const;
public:
void set_panorama(const Ref<Texture2D> &p_panorama);
Ref<Texture2D> get_panorama() const;
virtual Shader::Mode get_shader_mode() const;
RID get_shader_rid() const;
PanoramaSkyMaterial();
~PanoramaSkyMaterial();
};
//////////////////////////////////////////////////////
/* PanoramaSkyMaterial */
class PhysicalSkyMaterial : public Material {
GDCLASS(PhysicalSkyMaterial, Material);
private:
RID shader;
float rayleigh;
Color rayleigh_color;
float mie;
float mie_eccentricity;
Color mie_color;
float turbidity;
float sun_disk_scale;
Color ground_color;
float exposure;
float dither_strength;
protected:
static void _bind_methods();
virtual bool _can_do_next_pass() const;
public:
void set_rayleigh_coefficient(float p_rayleigh);
float get_rayleigh_coefficient() const;
void set_rayleigh_color(Color p_rayleigh_color);
Color get_rayleigh_color() const;
void set_turbidity(float p_turbidity);
float get_turbidity() const;
void set_mie_coefficient(float p_mie);
float get_mie_coefficient() const;
void set_mie_eccentricity(float p_eccentricity);
float get_mie_eccentricity() const;
void set_mie_color(Color p_mie_color);
Color get_mie_color() const;
void set_sun_disk_scale(float p_sun_disk_scale);
float get_sun_disk_scale() const;
void set_ground_color(Color p_ground_color);
Color get_ground_color() const;
void set_exposure(float p_exposure);
float get_exposure() const;
void set_dither_strength(float p_dither_strength);
float get_dither_strength() const;
virtual Shader::Mode get_shader_mode() const;
RID get_shader_rid() const;
PhysicalSkyMaterial();
~PhysicalSkyMaterial();
};
#endif /* !SKY_MATERIAL_H */