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Diffstat (limited to 'scene/resources/sky.cpp')
| -rw-r--r-- | scene/resources/sky.cpp | 577 |
1 files changed, 577 insertions, 0 deletions
diff --git a/scene/resources/sky.cpp b/scene/resources/sky.cpp new file mode 100644 index 0000000000..a473fe8b7f --- /dev/null +++ b/scene/resources/sky.cpp @@ -0,0 +1,577 @@ +/*************************************************************************/ +/* sky.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2019 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.h" + +#include "core/io/image_loader.h" + +void Sky::set_radiance_size(RadianceSize p_size) { + ERR_FAIL_INDEX(p_size, RADIANCE_SIZE_MAX); + + radiance_size = p_size; + _radiance_changed(); +} + +Sky::RadianceSize Sky::get_radiance_size() const { + + return radiance_size; +} + +void Sky::_bind_methods() { + + ClassDB::bind_method(D_METHOD("set_radiance_size", "size"), &Sky::set_radiance_size); + ClassDB::bind_method(D_METHOD("get_radiance_size"), &Sky::get_radiance_size); + + ADD_PROPERTY(PropertyInfo(Variant::INT, "radiance_size", PROPERTY_HINT_ENUM, "32,64,128,256,512,1024,2048"), "set_radiance_size", "get_radiance_size"); + + BIND_ENUM_CONSTANT(RADIANCE_SIZE_32); + BIND_ENUM_CONSTANT(RADIANCE_SIZE_64); + BIND_ENUM_CONSTANT(RADIANCE_SIZE_128); + BIND_ENUM_CONSTANT(RADIANCE_SIZE_256); + BIND_ENUM_CONSTANT(RADIANCE_SIZE_512); + BIND_ENUM_CONSTANT(RADIANCE_SIZE_1024); + BIND_ENUM_CONSTANT(RADIANCE_SIZE_2048); + BIND_ENUM_CONSTANT(RADIANCE_SIZE_MAX); +} + +Sky::Sky() { + radiance_size = RADIANCE_SIZE_512; +} + +///////////////////////////////////////// + +void PanoramaSky::_radiance_changed() { + + if (panorama.is_valid()) { + static const int size[RADIANCE_SIZE_MAX] = { + 32, 64, 128, 256, 512, 1024, 2048 + }; + VS::get_singleton()->sky_set_texture(sky, panorama->get_rid(), size[get_radiance_size()]); + } +} + +void PanoramaSky::set_panorama(const Ref<Texture> &p_panorama) { + + panorama = p_panorama; + + if (panorama.is_valid()) { + + _radiance_changed(); + + } else { + VS::get_singleton()->sky_set_texture(sky, RID(), 0); + } +} + +Ref<Texture> PanoramaSky::get_panorama() const { + + return panorama; +} + +RID PanoramaSky::get_rid() const { + + return sky; +} + +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, "Texture"), "set_panorama", "get_panorama"); +} + +PanoramaSky::PanoramaSky() { + + sky = VS::get_singleton()->sky_create(); +} + +PanoramaSky::~PanoramaSky() { + + VS::get_singleton()->free(sky); +} +////////////////////////////////// + +void ProceduralSky::_radiance_changed() { + + if (update_queued) + return; //do nothing yet + + static const int size[RADIANCE_SIZE_MAX] = { + 32, 64, 128, 256, 512, 1024, 2048 + }; + VS::get_singleton()->sky_set_texture(sky, texture, size[get_radiance_size()]); +} + +Ref<Image> ProceduralSky::_generate_sky() { + + update_queued = false; + + PoolVector<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 + + { + PoolVector<uint8_t>::Write dataw = imgdata.write(); + + uint32_t *ptr = (uint32_t *)dataw.ptr(); + + 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_color.to_linear(); + + 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_color); + } 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_color).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; +} + +RID ProceduralSky::get_rid() const { + return sky; +} + +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(); + VS::get_singleton()->texture_allocate(texture, image->get_width(), image->get_height(), 0, Image::FORMAT_RGBE9995, VS::TEXTURE_TYPE_2D, VS::TEXTURE_FLAG_FILTER | VS::TEXTURE_FLAG_REPEAT); + VS::get_singleton()->texture_set_data(texture, image); + _radiance_changed(); + } +} + +void ProceduralSky::_queue_update() { + + if (update_queued) + return; + + update_queued = true; + call_deferred("_update_sky"); +} + +void ProceduralSky::_thread_done(const Ref<Image> &p_image) { + + VS::get_singleton()->texture_allocate(texture, p_image->get_width(), p_image->get_height(), 0, Image::FORMAT_RGBE9995, VS::TEXTURE_TYPE_2D, VS::TEXTURE_FLAG_FILTER | VS::TEXTURE_FLAG_REPEAT); + VS::get_singleton()->texture_set_data(texture, p_image); + _radiance_changed(); + 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::REAL, "sky_curve", PROPERTY_HINT_EXP_EASING), "set_sky_curve", "get_sky_curve"); + ADD_PROPERTY(PropertyInfo(Variant::REAL, "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::REAL, "ground_curve", PROPERTY_HINT_EXP_EASING), "set_ground_curve", "get_ground_curve"); + ADD_PROPERTY(PropertyInfo(Variant::REAL, "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::REAL, "sun_latitude", PROPERTY_HINT_RANGE, "-180,180,0.01"), "set_sun_latitude", "get_sun_latitude"); + ADD_PROPERTY(PropertyInfo(Variant::REAL, "sun_longitude", PROPERTY_HINT_RANGE, "-180,180,0.01"), "set_sun_longitude", "get_sun_longitude"); + ADD_PROPERTY(PropertyInfo(Variant::REAL, "sun_angle_min", PROPERTY_HINT_RANGE, "0,360,0.01"), "set_sun_angle_min", "get_sun_angle_min"); + ADD_PROPERTY(PropertyInfo(Variant::REAL, "sun_angle_max", PROPERTY_HINT_RANGE, "0,360,0.01"), "set_sun_angle_max", "get_sun_angle_max"); + ADD_PROPERTY(PropertyInfo(Variant::REAL, "sun_curve", PROPERTY_HINT_EXP_EASING), "set_sun_curve", "get_sun_curve"); + ADD_PROPERTY(PropertyInfo(Variant::REAL, "sun_energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_sun_energy", "get_sun_energy"); + + ADD_GROUP("Texture", "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() { + + sky = VS::get_singleton()->sky_create(); + texture = VS::get_singleton()->texture_create(); + + 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; + + 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 = 16; + + 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; + } + VS::get_singleton()->free(sky); + VS::get_singleton()->free(texture); +} |