From a7ad219261fa1f5859c85f07ec74c1341254813a Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Tue, 12 May 2026 02:02:06 +0300
Subject: [PATCH] test environment (sky)

---
 src/data/dv.hpp                       |  28 ++++
 src/graphics/core/Cubemap.cpp         |  23 ++-
 src/graphics/core/Cubemap.hpp         |   1 +
 src/graphics/core/Framebuffer.cpp     |  60 ++++---
 src/graphics/core/Framebuffer.hpp     |   3 +-
 src/graphics/core/Texture.cpp         |  20 ++-
 src/graphics/core/Texture.hpp         |   6 +-
 src/graphics/render/Skybox.cpp        | 219 +++++++++++++++++---------
 src/graphics/render/Skybox.hpp        |  52 +++---
 src/graphics/render/WorldRenderer.cpp | 146 +++++++++--------
 src/graphics/render/WorldRenderer.hpp |   2 +
 src/world/Environment.cpp             |  25 +++
 src/world/Environment.hpp             |  30 ++++
 src/world/Level.hpp                   |   2 +
 14 files changed, 421 insertions(+), 196 deletions(-)
 create mode 100644 src/world/Environment.cpp
 create mode 100644 src/world/Environment.hpp

diff --git a/src/data/dv.hpp b/src/data/dv.hpp
index 3c3f4a71e..8acd22136 100644
--- a/src/data/dv.hpp
+++ b/src/data/dv.hpp
@@ -9,6 +9,10 @@
 #include <stdexcept>
 #include <unordered_map>
 
+#ifdef VC_ENABLE_REFLECTION
+#include "util/EnumMetadata.hpp"
+#endif
+
 namespace util {
     template<class T> class Buffer;
 }
@@ -70,6 +74,14 @@ namespace dv {
             return ptr != nullptr;
         }
 
+        inline value* operator->() noexcept {
+            return ptr;
+        }
+
+        inline const value* operator->() const noexcept {
+            return ptr;
+        }
+
         inline value& operator*() noexcept {
             return *ptr;
         }
@@ -78,6 +90,11 @@ namespace dv {
             return *ptr;
         }
 
+#ifdef VC_ENABLE_REFLECTION
+        template <typename T>
+        bool get(T& dst, const util::EnumMetadata<T>& mt) const;
+#endif
+
         bool get(std::string& dst) const;
         bool get(bool& dst) const;
         bool get(char& dst) const;
@@ -552,6 +569,17 @@ namespace dv {
         }
         return false;
     }
+
+#ifdef VC_ENABLE_REFLECTION
+    template <typename T>
+    inline bool optionalvalue::get(T& dst, const util::EnumMetadata<T>& mt) const {
+        if (ptr) {
+            return mt.getItem(ptr->asString(), dst);
+        }
+        return false;
+    }
+#endif
+
     inline bool optionalvalue::get(std::string& dst) const {
         if (ptr) {
             dst = ptr->asString();
diff --git a/src/graphics/core/Cubemap.cpp b/src/graphics/core/Cubemap.cpp
index 631a8d7e4..e55fb3127 100644
--- a/src/graphics/core/Cubemap.cpp
+++ b/src/graphics/core/Cubemap.cpp
@@ -4,7 +4,7 @@
 #include <GL/glew.h>
 
 Cubemap::Cubemap(uint width, uint height, ImageFormat imageFormat) 
-  : Texture(0, width, height) 
+  : Texture(0U, width, height, imageFormat) 
 {
     glGenTextures(1, &id);
     glBindTexture(GL_TEXTURE_CUBE_MAP, id);
@@ -14,7 +14,6 @@ Cubemap::Cubemap(uint width, uint height, ImageFormat imageFormat)
     glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
     glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
 
-    uint format = gl::to_glenum(imageFormat);
     for (uint face = 0; face < 6; face++) {
         glTexImage2D(
             GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, 
@@ -37,3 +36,23 @@ void Cubemap::bind() const {
 void Cubemap::unbind() const {
     glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
 }
+
+void Cubemap::reload(const ubyte* data, uint width, uint height) {
+    this->width = width;
+    this->height = height;
+    glBindTexture(GL_TEXTURE_CUBE_MAP, id);
+    for (uint face = 0; face < 6; face++) {
+        glTexImage2D(
+            GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, 
+            0, 
+            format, 
+            width, 
+            height, 
+            0, 
+            format, 
+            GL_UNSIGNED_BYTE, 
+            data
+        );
+    }
+    glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
+}
diff --git a/src/graphics/core/Cubemap.hpp b/src/graphics/core/Cubemap.hpp
index 4ca1b9884..e266c4381 100644
--- a/src/graphics/core/Cubemap.hpp
+++ b/src/graphics/core/Cubemap.hpp
@@ -9,4 +9,5 @@ public:
 
     virtual void bind() const override;
     virtual void unbind() const override;
+    virtual void reload(const ubyte* data, uint w, uint h) override;
 };
diff --git a/src/graphics/core/Framebuffer.cpp b/src/graphics/core/Framebuffer.cpp
index 5d6be967d..dde31f6be 100644
--- a/src/graphics/core/Framebuffer.cpp
+++ b/src/graphics/core/Framebuffer.cpp
@@ -1,14 +1,14 @@
 #include "Framebuffer.hpp"
 
 #include <GL/glew.h>
+
 #include "Texture.hpp"
 #include "debug/Logger.hpp"
 
 static debug::Logger logger("gl-framebuffer");
 
 Framebuffer::Framebuffer(uint fbo, uint depth, std::unique_ptr<Texture> texture)
-  : fbo(fbo), depth(depth), texture(std::move(texture)) 
-{
+    : fbo(fbo), depth(depth), texture(std::move(texture)) {
     if (this->texture) {
         width = this->texture->getWidth();
         height = this->texture->getHeight();
@@ -18,35 +18,55 @@ Framebuffer::Framebuffer(uint fbo, uint depth, std::unique_ptr<Texture> texture)
     }
 }
 
-static std::unique_ptr<Texture> create_texture(int width, int height, int format) {
-    GLuint tex;
-    glGenTextures(1, &tex);
-    glBindTexture(GL_TEXTURE_2D, tex);
-    glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, nullptr);
+static std::unique_ptr<Texture> create_texture(
+    int width, int height, bool alpha
+) {
+    GLenum glformat = alpha ? GL_RGBA : GL_RGB;
+
+    GLuint textureid;
+    glGenTextures(1, &textureid);
+    glBindTexture(GL_TEXTURE_2D, textureid);
+    glTexImage2D(
+        GL_TEXTURE_2D,
+        0,
+        glformat,
+        width,
+        height,
+        0,
+        glformat,
+        GL_UNSIGNED_BYTE,
+        nullptr
+    );
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tex, 0);
-    return std::make_unique<Texture>(tex, width, height);
+    glFramebufferTexture2D(
+        GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textureid, 0
+    );
+    return std::make_unique<Texture>(
+        textureid,
+        width,
+        height,
+        alpha ? ImageFormat::RGBA8888 : ImageFormat::RGB888
+    );
 }
 
-Framebuffer::Framebuffer(uint width, uint height, bool alpha) 
-  : width(width), height(height)
-{
+Framebuffer::Framebuffer(uint width, uint height, bool alpha)
+    : width(width), height(height) {
     glGenFramebuffers(1, &fbo);
     glBindFramebuffer(GL_FRAMEBUFFER, fbo);
 
-    format = alpha ? GL_RGBA : GL_RGB;
-
     // Setup color attachment (texture)
-    texture = create_texture(width, height, format);
+    texture = create_texture(width, height, alpha);
 
     // Setup depth attachment
     glGenRenderbuffers(1, &depth);
     glBindRenderbuffer(GL_RENDERBUFFER, depth);
     glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, width, height);
-    glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depth);
+    glFramebufferRenderbuffer(
+        GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depth
+    );
 
     if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
         logger.error() << "framebuffer is not complete!";
@@ -60,6 +80,10 @@ Framebuffer::~Framebuffer() {
     glDeleteRenderbuffers(1, &depth);
 }
 
+void Framebuffer::setTexture(std::unique_ptr<Texture> texture) {
+    this->texture = std::move(texture);
+}
+
 void Framebuffer::bind() {
     glBindFramebuffer(GL_FRAMEBUFFER, fbo);
 }
@@ -81,7 +105,7 @@ void Framebuffer::resize(uint width, uint height) {
     glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, width, height);
     glBindRenderbuffer(GL_RENDERBUFFER, 0);
 
-    texture = create_texture(width, height, format);
+    texture->resize(width, height);
     glBindFramebuffer(GL_FRAMEBUFFER, 0);
 }
 
@@ -102,5 +126,5 @@ uint Framebuffer::getHeight() const {
 }
 
 uint Framebuffer::getFBO() const {
-    return fbo;   
+    return fbo;
 }
diff --git a/src/graphics/core/Framebuffer.hpp b/src/graphics/core/Framebuffer.hpp
index 4d21449c5..f64d33f37 100644
--- a/src/graphics/core/Framebuffer.hpp
+++ b/src/graphics/core/Framebuffer.hpp
@@ -12,13 +12,14 @@ class Framebuffer : public Bindable {
     uint depth;
     uint width;
     uint height;
-    uint format;
     std::shared_ptr<Texture> texture;
 public:
     Framebuffer(uint fbo, uint depth, std::unique_ptr<Texture> texture);
     Framebuffer(uint width, uint height, bool alpha=false);
     ~Framebuffer();
 
+    void setTexture(std::unique_ptr<Texture> texture);
+
     /// @brief Use framebuffer
     void bind() override;
 
diff --git a/src/graphics/core/Texture.cpp b/src/graphics/core/Texture.cpp
index d60bd2779..5f326d20c 100644
--- a/src/graphics/core/Texture.cpp
+++ b/src/graphics/core/Texture.cpp
@@ -7,8 +7,8 @@
 
 uint Texture::MAX_RESOLUTION = 1024; // Window.initialize overrides it
 
-Texture::Texture(uint id, uint width, uint height) 
-    : id(id), width(width), height(height) {
+Texture::Texture(uint id, uint width, uint height, ImageFormat imageFormat)
+    : id(id), width(width), height(height), format(gl::to_glenum(imageFormat)) {
 }
 
 Texture::Texture(const ubyte* data, uint width, uint height, ImageFormat imageFormat) 
@@ -17,7 +17,7 @@ Texture::Texture(const ubyte* data, uint width, uint height, ImageFormat imageFo
     glBindTexture(GL_TEXTURE_2D, id);
     glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 
-    GLenum format = gl::to_glenum(imageFormat);
+    format = gl::to_glenum(imageFormat);
     glTexImage2D(
         GL_TEXTURE_2D, 0, format, width, height, 0,
         format, GL_UNSIGNED_BYTE, static_cast<const GLvoid*>(data)
@@ -41,23 +41,27 @@ void Texture::unbind() const {
     glBindTexture(GL_TEXTURE_2D, 0);
 }
 
+void Texture::resize(uint width, uint height) {
+    reload(nullptr, width, height);
+}
+
 void Texture::reload(const ImageData& image) {
-    width = image.getWidth();
-    height = image.getHeight();
     reload(image.getData(), width, height);
 }
 
 void Texture::reload(const ubyte* data, uint width, uint height) {
+    this->width = width;
+    this->height = height;
     glBindTexture(GL_TEXTURE_2D, id);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0,
-        GL_RGBA, GL_UNSIGNED_BYTE, static_cast<const GLvoid*>(data));
+    glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0,
+        format, GL_UNSIGNED_BYTE, static_cast<const GLvoid*>(data));
     glGenerateMipmap(GL_TEXTURE_2D);
     glBindTexture(GL_TEXTURE_2D, 0);
 }
 
 void Texture::reloadPartial(const ImageData& image, uint x, uint y, uint w, uint h) {
     glBindTexture(GL_TEXTURE_2D, id);
-    glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, w, h, GL_RGBA, GL_UNSIGNED_BYTE, image.getData());
+    glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, w, h, format, GL_UNSIGNED_BYTE, image.getData());
     glGenerateMipmap(GL_TEXTURE_2D);
     glBindTexture(GL_TEXTURE_2D, 0);
 }
diff --git a/src/graphics/core/Texture.hpp b/src/graphics/core/Texture.hpp
index 3c8f1b4cb..50734a577 100644
--- a/src/graphics/core/Texture.hpp
+++ b/src/graphics/core/Texture.hpp
@@ -11,19 +11,21 @@ protected:
     uint id;
     uint width;
     uint height;
+    uint format;
 public:
-    Texture(uint id, uint width, uint height);
+    Texture(uint id, uint width, uint height, ImageFormat imageFormat);
     Texture(const ubyte* data, uint width, uint height, ImageFormat format);
     virtual ~Texture();
 
     virtual void bind() const;
     virtual void unbind() const;
-    void reload(const ubyte* data, uint w, uint h);
+    virtual void reload(const ubyte* data, uint w, uint h);
     void reloadPartial(const ImageData& image, uint x, uint y, uint w, uint h);
 
     void setNearestFilter();
 
     void reload(const ImageData& image);
+    virtual void resize(uint w, uint h);
 
     void setMipMapping(bool flag, bool pixelated);
 
diff --git a/src/graphics/render/Skybox.cpp b/src/graphics/render/Skybox.cpp
index c546c62e3..79e5552af 100644
--- a/src/graphics/render/Skybox.cpp
+++ b/src/graphics/render/Skybox.cpp
@@ -1,47 +1,44 @@
 #include "Skybox.hpp"
-#include "assets/Assets.hpp"
-#include "graphics/core/Shader.hpp"
-#include "graphics/core/Mesh.hpp"
-#include "graphics/core/Batch3D.hpp"
-#include "graphics/core/Texture.hpp"
-#include "graphics/core/Cubemap.hpp"
-#include "graphics/core/Framebuffer.hpp"
-#include "graphics/core/DrawContext.hpp"
-#include "window/Window.hpp"
-#include "window/Camera.hpp"
-#include "maths/UVRegion.hpp"
+
+#include <GL/glew.h>
 
 #include <cmath>
-#include <iostream>
-#include <GL/glew.h>
 #include <glm/glm.hpp>
-#include <glm/gtc/matrix_transform.hpp>
 #include <glm/gtc/constants.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+#include <limits>
+
+#include "assets/Assets.hpp"
+#include "graphics/core/Batch3D.hpp"
+#include "graphics/core/Cubemap.hpp"
+#include "graphics/core/DrawContext.hpp"
+#include "graphics/core/Framebuffer.hpp"
+#include "graphics/core/Mesh.hpp"
+#include "graphics/core/Shader.hpp"
+#include "graphics/core/Texture.hpp"
+#include "maths/UVRegion.hpp"
+#include "window/Camera.hpp"
+#include "window/Window.hpp"
 
 using namespace advanced_pipeline;
 
 const int STARS_COUNT = 3000;
+
 const int STARS_SEED = 632;
 
-Skybox::Skybox(uint size, Shader& shader)
-  : size(size),
-    shader(shader),
-    batch3d(std::make_unique<Batch3D>(4096))
-{
-    auto cubemap = std::make_unique<Cubemap>(size, size, ImageFormat::RGB888);
+Skybox::Skybox(uint size, const Assets& assets)
+    : size(size),
+      assets(assets),
+      shader(assets.require<Shader>("skybox_gen")),
+      batch3d(std::make_unique<Batch3D>(4096)) {
 
-    uint fboid;
-    glGenFramebuffers(1, &fboid);
-    fbo = std::make_unique<Framebuffer>(fboid, 0, std::move(cubemap));
-
-    SkyboxVertex vertices[]{
+    SkyboxVertex vertices[] {
         {{-1.0f, -1.0f}},
         {{-1.0f, 1.0f}},
         {{1.0f, 1.0f}},
         {{-1.0f, -1.0f}},
         {{1.0f, 1.0f}},
-        {{1.0f, -1.0f}}
-    };
+        {{1.0f, -1.0f}}};
 
     mesh = std::make_unique<Mesh<SkyboxVertex>>(vertices, 6);
 
@@ -52,7 +49,7 @@ Skybox::Skybox(uint size, Shader& shader)
         false,
         glm::pi<float>() * 0.25f,
     });
-    
+
     sprites.push_back(SkySprite {
         "misc/moon_flare",
         glm::pi<float>() * 0.5f,
@@ -68,20 +65,20 @@ Skybox::Skybox(uint size, Shader& shader)
         true,
         glm::pi<float>() * 0.25f,
     });
+
+    setMode(mode);
 }
 
 Skybox::~Skybox() = default;
 
-void Skybox::drawBackground(
-    const Camera& camera, const Assets& assets, int width, int height
-) {
+void Skybox::drawBackground(const Camera& camera, int width, int height) {
     auto backShader = assets.get<Shader>("background");
     backShader->use();
     backShader->uniformMatrix("u_view", camera.getView(false));
     backShader->uniform1f(
         "u_zoom", camera.zoom * camera.getFov() / glm::half_pi<float>()
     );
-    backShader->uniform1f("u_ar", float(width)/float(height));
+    backShader->uniform1f("u_ar", float(width) / float(height));
     backShader->uniform1i("u_skybox", 1);
     bind();
     mesh->draw();
@@ -93,9 +90,7 @@ void Skybox::drawStars(float angle, float opacity) {
     random.setSeed(STARS_SEED);
 
     glm::mat4 rotation = glm::rotate(
-        glm::mat4(1.0f),
-        -angle + glm::pi<float>() * 0.5f,
-        glm::vec3(0, 0, -1)
+        glm::mat4(1.0f), -angle + glm::pi<float>() * 0.5f, glm::vec3(0, 0, -1)
     );
     rotation = glm::rotate(rotation, sunAltitude, glm::vec3(1, 0, 0));
 
@@ -108,41 +103,20 @@ void Skybox::drawStars(float angle, float opacity) {
         glm::vec3 pos = glm::vec4(rx, ry, rz, 1) * rotation;
 
         float sopacity = random.randFloat();
-        if (pos.y < 0.0f)
-            continue;
+        if (pos.y < 0.0f) continue;
 
         sopacity *= (0.2f + std::sqrt(std::cos(angle)) * 0.5f) - 0.05f;
-        glm::vec4 tint (1,1,1, sopacity * opacity);
+        glm::vec4 tint(1, 1, 1, sopacity * opacity);
         batch3d->point(pos * depth, tint);
     }
     batch3d->flushPoints();
 }
 
-void Skybox::draw(
-    const DrawContext& pctx,
-    const Camera& camera,
-    const Assets& assets,
+void Skybox::drawSkySprites(
     float daytime,
-    float fog)
-{
-    const glm::uvec2& viewport = pctx.getViewport();
-
-    glActiveTexture(GL_TEXTURE0);
-
-    drawBackground(camera, assets, viewport.x, viewport.y);
-
-    DrawContext ctx = pctx.sub();
-    ctx.setBlendMode(BlendMode::addition);
-
-    auto shader = assets.get<Shader>("ui3d");
-    shader->use();
-    shader->uniformMatrix("u_projview", camera.getProjView(false));
-    shader->uniformMatrix("u_apply", glm::mat4(1.0f));
-    batch3d->begin();
-
-    float angle = daytime * glm::pi<float>() * 2.0f;
-    float opacity = glm::pow(1.0f - fog, 7.0f);
-
+    float angle,
+    float opacity
+) {
     float depthScale = 2e3;
     for (auto& sprite : sprites) {
         batch3d->texture(assets.get<Texture>(sprite.texture));
@@ -159,39 +133,132 @@ void Skybox::draw(
         glm::vec3 pos = glm::vec4(0, distance, 0, 1) * rotation;
         glm::vec3 up = glm::vec4(depthScale, 0, 0, 1) * rotation;
         glm::vec3 right = glm::vec4(0, 0, depthScale, 1) * rotation;
-        glm::vec4 tint (1,1,1, opacity);
+        glm::vec4 tint(1, 1, 1, opacity);
         if (!sprite.emissive) {
-            tint *= 0.6f + std::cos(angle)*0.4;
+            tint *= 0.6f + std::cos(angle) * 0.4;
         }
-        batch3d->sprite(pos, right,
-                        up, 1, 1, UVRegion(), tint);
+        batch3d->sprite(pos, right, up, 1, 1, UVRegion(), tint);
     }
     batch3d->flush();
-    drawStars(angle, opacity);
 }
 
-void Skybox::refresh(const DrawContext& pctx, float t, float mie, const glm::vec3& tint, const glm::vec3& hightlight, uint quality) {
+void Skybox::draw(
+    const Environment& environment,
+    const DrawContext& pctx,
+    const Camera& camera,
+    float daytime,
+    float fog
+) {
+    const glm::uvec2& viewport = pctx.getViewport();
+
+    glActiveTexture(GL_TEXTURE0);
+
+    drawBackground(camera, viewport.x, viewport.y);
+
+    float angle = daytime * glm::pi<float>() * 2.0f;
+    float opacity = glm::pow(1.0f - fog, 7.0f);
+
+    DrawContext ctx = pctx.sub();
+    ctx.setBlendMode(BlendMode::addition);
+
+    if (!environment.sky.sprites && !environment.sky.stars) {
+        return;
+    }
+
+    auto shader = assets.get<Shader>("ui3d");
+    shader->use();
+    shader->uniformMatrix("u_projview", camera.getProjView(false));
+    shader->uniformMatrix("u_apply", glm::mat4(1.0f));
+    batch3d->begin();
+
+    if (environment.sky.sprites) {
+        drawSkySprites(daytime, angle, opacity);
+    }
+    if (environment.sky.stars) {
+        drawStars(angle, opacity);
+    }
+}
+
+void Skybox::setMode(SkyMode mode) {
+    if (this->mode == mode && fbo) {
+        return;
+    }
+    this->mode = mode;
+
+    uint size = mode == SkyMode::BOX ? this->size : 1U;
+    prevT = std::numeric_limits<float>().min();
+
+    uint fboid;
+    glGenFramebuffers(1, &fboid);
+    fbo = std::make_unique<Framebuffer>(
+        fboid,
+        false,
+        std::make_unique<Cubemap>(size, size, ImageFormat::RGB888)
+    );
+}
+
+void Skybox::refresh(
+    const Environment& environment,
+    const DrawContext& pctx,
+    float dayTime,
+    float mie,
+    const glm::vec3& tint,
+    const glm::vec3& hightlight,
+    uint quality
+) {
+    setMode(environment.sky.mode);
+
+    if (mode == SkyMode::NONE) {
+        return;
+    } else if (mode == SkyMode::SOLID) {
+        DrawContext ctx = pctx.sub();
+        ctx.setDepthMask(false);
+        ctx.setDepthTest(false);
+        ctx.setFramebuffer(fbo.get());
+        ctx.setViewport({fbo->getWidth(), fbo->getHeight()});
+
+        auto cubemap = dynamic_cast<Cubemap*>(fbo->getTexture());
+        assert(cubemap != nullptr);
+
+        glActiveTexture(GL_TEXTURE0 + TARGET_SKYBOX);
+        cubemap->bind();
+
+        for (int face = 0; face < 6; face++) {
+            glFramebufferTexture2D(
+                GL_FRAMEBUFFER,
+                GL_COLOR_ATTACHMENT0,
+                GL_TEXTURE_CUBE_MAP_POSITIVE_X + face,
+                cubemap->getId(),
+                0
+            );
+            glClearColor(tint.r, tint.g, tint.b, 1);
+            glClear(GL_COLOR_BUFFER_BIT);
+        }
+
+        cubemap->unbind();
+        return;
+    }
+
     frameid++;
-    float dayTime = t;
     DrawContext ctx = pctx.sub();
     ctx.setDepthMask(false);
     ctx.setDepthTest(false);
     ctx.setFramebuffer(fbo.get());
-    ctx.setViewport({size, size});
+    ctx.setViewport({fbo->getWidth(), fbo->getHeight()});
 
     auto cubemap = dynamic_cast<Cubemap*>(fbo->getTexture());
     assert(cubemap != nullptr);
 
-    ready = true;
     glActiveTexture(GL_TEXTURE0 + TARGET_SKYBOX);
     cubemap->bind();
     shader.use();
-    t *= glm::two_pi<float>();
 
+    float t = dayTime * glm::two_pi<float>();
     lightDir = glm::normalize(glm::vec3(sin(t), -cos(t), 0.0f));
 
-    float sunAngle = glm::radians((t / glm::two_pi<float>() - 0.25f) * 360.0f);
-    float x = -glm::cos(sunAngle + glm::pi<float>() * 0.5f) * glm::radians(sunAltitude);
+    float sunAngle = glm::radians((dayTime - 0.25f) * 360.0f);
+    float x = -glm::cos(sunAngle + glm::pi<float>() * 0.5f) *
+              glm::radians(sunAltitude);
     float y = sunAngle - glm::pi<float>() * 0.5f;
     float z = glm::radians(0.0f);
     rotation = glm::rotate(glm::mat4(1.0f), y, glm::vec3(0, 1, 0));
@@ -207,7 +274,9 @@ void Skybox::refresh(const DrawContext& pctx, float t, float mie, const glm::vec
     shader.uniform3f("u_lightDir", lightDir);
     shader.uniform1f("u_dayTime", dayTime);
 
-    if (glm::abs(mie-prevMie) + glm::abs(t-prevT) + glm::abs(prevHighlight.r - hightlight.r) >= 0.01) {
+    if (glm::abs(mie - prevMie) + glm::abs(t - prevT) +
+            glm::abs(prevHighlight.r - hightlight.r) >=
+        0.01) {
         for (uint face = 0; face < 6; face++) {
             refreshFace(face, cubemap);
         }
diff --git a/src/graphics/render/Skybox.hpp b/src/graphics/render/Skybox.hpp
index d2dde6f5e..270dc066d 100644
--- a/src/graphics/render/Skybox.hpp
+++ b/src/graphics/render/Skybox.hpp
@@ -1,14 +1,18 @@
 #pragma once
 
+#include <glm/glm.hpp>
 #include <memory>
 #include <string>
 #include <vector>
-#include <glm/glm.hpp>
-#include "typedefs.hpp"
-#include "maths/fastmaths.hpp"
-#include "graphics/core/MeshData.hpp"
 
-template<typename VertexStructure> class Mesh;
+#include "graphics/core/MeshData.hpp"
+#include "maths/fastmaths.hpp"
+#include "typedefs.hpp"
+#include "world/Environment.hpp"
+
+
+template <typename VertexStructure>
+class Mesh;
 class Shader;
 class Assets;
 class Camera;
@@ -21,8 +25,7 @@ struct SkyboxVertex {
     glm::vec2 position;
 
     static constexpr VertexAttribute ATTRIBUTES[] {
-        {VertexAttribute::Type::FLOAT, false, 2}, 
-        {{}, 0}};
+        {VertexAttribute::Type::FLOAT, false, 2}, {{}, 0}};
 };
 
 struct SkySprite {
@@ -34,10 +37,11 @@ struct SkySprite {
 };
 
 class Skybox {
-    std::unique_ptr<Framebuffer> fbo;
+    SkyMode mode = SkyMode::SOLID;
     uint size;
+    std::unique_ptr<Framebuffer> fbo;
+    const Assets& assets;
     Shader& shader;
-    bool ready = false;
     FastRandom random;
     glm::vec3 lightDir;
 
@@ -53,30 +57,36 @@ class Skybox {
     glm::mat4 rotation;
 
     void drawStars(float angle, float opacity);
-    void drawBackground(
-        const Camera& camera, const Assets& assets, int width, int height
-    );
+    void drawBackground(const Camera& camera, int width, int height);
+    void drawSkySprites(float daytime, float angle, float opacity);
     void refreshFace(uint face, Cubemap* cubemap);
 public:
-    Skybox(uint size, Shader& shader);
+    Skybox(uint size, const Assets& assets);
     ~Skybox();
 
+    void setMode(SkyMode mode);
+
     void draw(
-        const DrawContext& pctx, 
-        const Camera& camera, 
-        const Assets& assets, 
+        const Environment& environment,
+        const DrawContext& pctx,
+        const Camera& camera,
         float daytime,
         float fog
     );
 
-    void refresh(const DrawContext& pctx, float t, float mie, const glm::vec3& tint, const glm::vec3& hightlight, uint quality);
+    void refresh(
+        const Environment& environment,
+        const DrawContext& pctx,
+        float t,
+        float mie,
+        const glm::vec3& tint,
+        const glm::vec3& hightlight,
+        uint quality
+    );
     void bind() const;
     void unbind() const;
-    bool isReady() const {
-        return ready;
-    }
 
-    const glm::vec3 getLightDir() const {
+    const glm::vec3& getLightDir() const {
         return lightDir;
     }
 };
diff --git a/src/graphics/render/WorldRenderer.cpp b/src/graphics/render/WorldRenderer.cpp
index 2e150e1f7..e5d838f7d 100644
--- a/src/graphics/render/WorldRenderer.cpp
+++ b/src/graphics/render/WorldRenderer.cpp
@@ -1,12 +1,45 @@
 #include "WorldRenderer.hpp"
 
+#include <assert.h>
+
+#include <algorithm>
+#include <glm/ext.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+#include <memory>
+
+#include "BlockWrapsRenderer.hpp"
+#include "ChunksRenderer.hpp"
+#include "CloudsRenderer.hpp"
+#include "DebugLinesRenderer.hpp"
+#include "Emitter.hpp"
+#include "HandsRenderer.hpp"
+#include "ModelBatch.hpp"
+#include "NamedSkeletons.hpp"
+#include "ParticlesRenderer.hpp"
+#include "PrecipitationRenderer.hpp"
+#include "Skybox.hpp"
+#include "TextNote.hpp"
+#include "TextsRenderer.hpp"
 #include "assets/Assets.hpp"
 #include "assets/assets_util.hpp"
+#include "coders/GLSLExtension.hpp"
 #include "content/Content.hpp"
 #include "engine/Engine.hpp"
-#include "coders/GLSLExtension.hpp"
-#include "frontend/LevelFrontend.hpp"
 #include "frontend/ContentGfxCache.hpp"
+#include "frontend/LevelFrontend.hpp"
+#include "graphics/commons/Model.hpp"
+#include "graphics/core/Atlas.hpp"
+#include "graphics/core/Batch3D.hpp"
+#include "graphics/core/DrawContext.hpp"
+#include "graphics/core/Font.hpp"
+#include "graphics/core/Framebuffer.hpp"
+#include "graphics/core/GBuffer.hpp"
+#include "graphics/core/LineBatch.hpp"
+#include "graphics/core/Mesh.hpp"
+#include "graphics/core/PostProcessing.hpp"
+#include "graphics/core/Shader.hpp"
+#include "graphics/core/Shadows.hpp"
+#include "graphics/core/Texture.hpp"
 #include "items/Inventory.hpp"
 #include "items/ItemDef.hpp"
 #include "items/ItemStack.hpp"
@@ -25,38 +58,6 @@
 #include "world/Level.hpp"
 #include "world/LevelEvents.hpp"
 #include "world/World.hpp"
-#include "graphics/commons/Model.hpp"
-#include "graphics/core/Atlas.hpp"
-#include "graphics/core/Batch3D.hpp"
-#include "graphics/core/DrawContext.hpp"
-#include "graphics/core/LineBatch.hpp"
-#include "graphics/core/Mesh.hpp"
-#include "graphics/core/PostProcessing.hpp"
-#include "graphics/core/Framebuffer.hpp"
-#include "graphics/core/Shader.hpp"
-#include "graphics/core/Texture.hpp"
-#include "graphics/core/Font.hpp"
-#include "graphics/core/Shadows.hpp"
-#include "graphics/core/GBuffer.hpp"
-#include "BlockWrapsRenderer.hpp"
-#include "ParticlesRenderer.hpp"
-#include "PrecipitationRenderer.hpp"
-#include "HandsRenderer.hpp"
-#include "NamedSkeletons.hpp"
-#include "TextsRenderer.hpp"
-#include "ChunksRenderer.hpp"
-#include "DebugLinesRenderer.hpp"
-#include "ModelBatch.hpp"
-#include "Skybox.hpp"
-#include "Emitter.hpp"
-#include "TextNote.hpp"
-#include "CloudsRenderer.hpp"
-
-#include <assert.h>
-#include <algorithm>
-#include <glm/ext.hpp>
-#include <glm/gtc/matrix_transform.hpp>
-#include <memory>
 
 using namespace advanced_pipeline;
 
@@ -105,8 +106,7 @@ WorldRenderer::WorldRenderer(
         [this](LevelEventType, Chunk* chunk) { chunksRenderer->unload(chunk); }
     );
     skybox = std::make_unique<Skybox>(
-        settings.graphics.skyboxResolution.get(),
-        assets.require<Shader>("skybox_gen")
+        settings.graphics.skyboxResolution.get(), assets
     );
 
     const auto& content = level.content;
@@ -179,6 +179,11 @@ void WorldRenderer::setupWorldShader(
     }
 }
 
+float WorldRenderer::calcFogFactor() const {
+    const auto& settings = engine.getSettings();
+    return 15.0f / static_cast<float>(settings.chunks.loadDistance.get() - 2);
+}
+
 void WorldRenderer::renderOpaque(
     const DrawContext& ctx,
     const Camera& camera,
@@ -187,14 +192,13 @@ void WorldRenderer::renderOpaque(
 ) {
     texts->render(ctx, camera, settings, hudVisible, false);
 
-    bool culling = engine.getSettings().graphics.frustumCulling.get();
-    float fogFactor =
-        15.0f / static_cast<float>(settings.chunks.loadDistance.get() - 2);
+    float fogFactor = calcFogFactor();
 
     auto& entityShader = assets.require<Shader>("entity");
     setupWorldShader(entityShader, camera, settings, fogFactor);
     skybox->bind();
 
+    bool culling = engine.getSettings().graphics.frustumCulling.get();
     if (culling) {
         frustumCulling->update(camera.getProjView());
     }
@@ -213,22 +217,24 @@ void WorldRenderer::renderOpaque(
 
     auto& shader = assets.require<Shader>("main");
     auto& cloudsShader = assets.require<Shader>("clouds");
-    auto& linesShader = assets.require<Shader>("lines");
 
     setupWorldShader(shader, camera, settings, fogFactor);
 
     chunksRenderer->drawChunks(camera, shader);
     blockWraps->draw(ctx);
 
-    int cloudsQuality = settings.graphics.cloudsQuality.get();
-    if (cloudsQuality > 0) {
-        setupWorldShader(cloudsShader, camera, settings, fogFactor);
-        cloudsRenderer->draw(
-            cloudsShader, weather, timer, fogFactor, camera, cloudsQuality
-        );
+    if (level.environment.sky.clouds) {
+        int cloudsQuality = settings.graphics.cloudsQuality.get();
+        if (cloudsQuality > 0) {
+            setupWorldShader(cloudsShader, camera, settings, fogFactor);
+            cloudsRenderer->draw(
+                cloudsShader, weather, timer, fogFactor, camera, cloudsQuality
+            );
+        }
     }
 
     if (hudVisible) {
+        auto& linesShader = assets.require<Shader>("lines");
         renderLines(camera, linesShader, ctx);
     }
     skybox->unbind();
@@ -286,21 +292,19 @@ void WorldRenderer::refreshSettings(Shader** shaders) {
 
     int shadowsQuality = graphics.shadowsQuality.get() * gbufferPipeline;
     shadowMapping->setQuality(shadowsQuality);
-    
+
     CompileTimeShaderSettings currentSettings {
         gbufferPipeline,
         shadowsQuality != 0,
-        graphics.ssao.get() && gbufferPipeline
-    };
-    if (
-        prevCTShaderSettings.advancedRender != currentSettings.advancedRender ||
+        graphics.ssao.get() && gbufferPipeline};
+    if (prevCTShaderSettings.advancedRender != currentSettings.advancedRender ||
         prevCTShaderSettings.shadows != currentSettings.shadows ||
-        prevCTShaderSettings.ssao != currentSettings.ssao
-    ) {
+        prevCTShaderSettings.ssao != currentSettings.ssao) {
         std::vector<std::string> defines;
         if (currentSettings.shadows) defines.emplace_back("ENABLE_SHADOWS");
         if (currentSettings.ssao) defines.emplace_back("ENABLE_SSAO");
-        if (currentSettings.advancedRender) defines.emplace_back("ADVANCED_RENDER");
+        if (currentSettings.advancedRender)
+            defines.emplace_back("ADVANCED_RENDER");
 
         for (size_t i = 0; shaders[i]; i++) {
             shaders[i]->recompile(defines);
@@ -332,7 +336,8 @@ void WorldRenderer::renderFrame(
     auto& entityShader = assets.require<Shader>("entity");
     auto& cloudsShader = assets.require<Shader>("clouds");
     auto& translucentShader = assets.require<Shader>("translucent");
-    auto& deferredShader = assets.require<PostEffect>("deferred_lighting").getShader();
+    auto& deferredShader =
+        assets.require<PostEffect>("deferred_lighting").getShader();
 
     const auto& settings = engine.getSettings();
 
@@ -342,19 +347,19 @@ void WorldRenderer::renderFrame(
         &cloudsShader,
         &translucentShader,
         &deferredShader,
-        nullptr
-    };
+        nullptr};
 
     refreshSettings(affectedShaders);
 
     const auto& worldInfo = world->getInfo();
-    
+
     float clouds = weather.clouds();
     clouds = glm::max(worldInfo.fog, clouds);
     float mie = 1.0f + glm::max(worldInfo.fog, clouds * 0.5f) * 2.0f;
 
     float random = rand() / static_cast<float>(RAND_MAX);
     skybox->refresh(
+        level.environment,
         pctx,
         worldInfo.daytime,
         mie,
@@ -385,8 +390,7 @@ void WorldRenderer::renderFrame(
         texts->render(pctx, camera, settings, hudVisible, true);
     }
     skybox->bind();
-    float fogFactor =
-        15.0f / static_cast<float>(settings.chunks.loadDistance.get() - 2);
+    float fogFactor = calcFogFactor();
     if (gbufferPipeline) {
         deferredShader.use();
         setupWorldShader(deferredShader, camera, settings, fogFactor);
@@ -403,7 +407,9 @@ void WorldRenderer::renderFrame(
         }
 
         // Background sky plane
-        skybox->draw(ctx, camera, assets, worldInfo.daytime, clouds);
+        skybox->draw(
+            level.environment, ctx, camera, worldInfo.daytime, clouds
+        );
 
         auto& linesShader = assets.require<Shader>("lines");
         linesShader.use();
@@ -429,14 +435,17 @@ void WorldRenderer::renderFrame(
         entityShader.use();
         setupWorldShader(entityShader, camera, settings, fogFactor);
 
-        std::array<const WeatherPreset*, 2> weatherInstances {&weather.a, &weather.b};
+        std::array<const WeatherPreset*, 2> weatherInstances {
+            &weather.a, &weather.b};
         for (const auto& weather : weatherInstances) {
             float maxIntensity = weather->fall.maxIntensity;
             float zero = weather->fall.minOpacity;
             float one = weather->fall.maxOpacity;
             float t = (weather->intensity * (one - zero)) * maxIntensity + zero;
             entityShader.uniform1i("u_alphaClip", weather->fall.opaque);
-            entityShader.uniform1f("u_opacity", weather->fall.opaque ? t * t : t);
+            entityShader.uniform1f(
+                "u_opacity", weather->fall.opaque ? t * t : t
+            );
             if (weather->intensity > 1.e-3f && !weather->fall.texture.empty()) {
                 precipitation->render(camera, *weather);
             }
@@ -446,7 +455,7 @@ void WorldRenderer::renderFrame(
         glBindFramebuffer(GL_FRAMEBUFFER, 0);
     }
     postProcessing.render(pctx, assets, timer, camera);
-    
+
     if (player.currentCamera == player.fpCamera) {
         DrawContext ctx = pctx.sub();
         ctx.setDepthTest(true);
@@ -457,7 +466,7 @@ void WorldRenderer::renderFrame(
         hudcam.far = 10.0f;
         hudcam.setFov(0.9f);
         hudcam.position = {};
-        
+
         hands->render(camera);
 
         display::clearDepth();
@@ -486,13 +495,12 @@ void WorldRenderer::renderBlockOverlay(const DrawContext& wctx) {
     if (def.overlayTexture.empty()) {
         return;
     }
-    auto textureRegion = util::get_texture_region(
-        assets, def.overlayTexture, "blocks:notfound"
-    );
+    auto textureRegion =
+        util::get_texture_region(assets, def.overlayTexture, "blocks:notfound");
     DrawContext ctx = wctx.sub();
     ctx.setDepthTest(false);
     ctx.setCullFace(false);
-    
+
     auto& shader = assets.require<Shader>("ui3d");
     shader.use();
     batch3d->begin();
diff --git a/src/graphics/render/WorldRenderer.hpp b/src/graphics/render/WorldRenderer.hpp
index b9a893d16..c3e6b1669 100644
--- a/src/graphics/render/WorldRenderer.hpp
+++ b/src/graphics/render/WorldRenderer.hpp
@@ -99,6 +99,8 @@ class WorldRenderer {
     );
 
     void refreshSettings(Shader** shaders);
+
+    float calcFogFactor() const;
 public:
     std::unique_ptr<ParticlesRenderer> particles;
     std::unique_ptr<TextsRenderer> texts;
diff --git a/src/world/Environment.cpp b/src/world/Environment.cpp
new file mode 100644
index 000000000..d2ad414bf
--- /dev/null
+++ b/src/world/Environment.cpp
@@ -0,0 +1,25 @@
+#define VC_ENABLE_REFLECTION
+#include "Environment.hpp"
+
+#include "data/dv.hpp"
+#include "data/dv_util.hpp"
+
+dv::value Environment::serialize() const {
+    return dv::object({
+        {"sky", dv::object({
+            {"mode", SkyModeMeta.getNameString(sky.mode)},
+            {"stars", sky.stars},
+            {"clouds", sky.clouds},
+            {"sprites", sky.sprites},
+        })},
+    });
+}
+
+void Environment::deserialize(const dv::value& src) {
+    if (auto skyItem = src.at("sky")) {
+        skyItem->at("mode").get(sky.mode, SkyModeMeta);
+        skyItem->at("stars").get(sky.stars);
+        skyItem->at("clouds").get(sky.clouds);
+        skyItem->at("sprites").get(sky.sprites);
+    }
+}
diff --git a/src/world/Environment.hpp b/src/world/Environment.hpp
new file mode 100644
index 000000000..5b5f668eb
--- /dev/null
+++ b/src/world/Environment.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "interfaces/Serializable.hpp"
+#include "util/EnumMetadata.hpp"
+
+enum class SkyMode {
+    NONE, SOLID, BOX
+};
+
+VC_ENUM_METADATA(SkyMode)
+    {"none", SkyMode::NONE},
+    {"solid", SkyMode::SOLID},
+    {"box", SkyMode::BOX},
+VC_ENUM_END
+
+class Environment : public Serializable {
+public:
+    struct {
+        SkyMode mode = SkyMode::BOX;
+        bool stars = true;
+        bool clouds = true;
+        bool sprites = true;
+    } sky;
+
+    Environment() = default;
+
+    dv::value serialize() const override;
+    void deserialize(const dv::value& src) override;
+private:
+};
diff --git a/src/world/Level.hpp b/src/world/Level.hpp
index 0dd3251fa..c8945a23c 100644
--- a/src/world/Level.hpp
+++ b/src/world/Level.hpp
@@ -6,6 +6,7 @@
 #include <unordered_map>
 
 #include "typedefs.hpp"
+#include "Environment.hpp"
 
 class Content;
 class World;
@@ -36,6 +37,7 @@ public:
     std::unique_ptr<Players> players;
     std::unique_ptr<voxels::Pathfinding> pathfinding;
     std::vector<std::shared_ptr<Camera>> cameras;  // move somewhere?
+    Environment environment {};
 
     Level(
         std::unique_ptr<World> world,