Make sky color configurable

include/core/Config.hpp

@@ -12,6 +12,7 @@ struct Config {
     float fov{glm::radians(90.0f)}; // Vertical fov in radians
     float near{10.0f};
     float far{100000.0f};
+    glm::vec3 sky_color{0.0f};
 
     // camera
     CameraController::Type camera_controller_type{CameraController::Type::UNITY};

src/core/Serializer.cpp

@@ -61,6 +61,7 @@ nlohmann::json Serializer::serialize(Config const& source) const
     target["fov"] = source.fov;
     target["near"] = source.near;
     target["far"] = source.far;
+    target["sky_color"] = source.sky_color;
     target["camera_controller_type"] = source.camera_controller_type;
     target["movement_speed"] = source.movement_speed;
     target["rotation_speed"] = source.rotation_speed;
@@ -129,6 +130,7 @@ Config Serializer::deserialize_config(nlohmann::json& source) const
         .fov = source["fov"],
         .near = source["near"],
         .far = source["far"],
+        .sky_color = source["sky_color"],
         .camera_controller_type = source["camera_controller_type"],
         .movement_speed = source["movement_speed"],
         .rotation_speed = source["rotation_speed"],

src/renderer/Camera.cpp

@@ -155,7 +155,12 @@ void Camera::draw(ViewingMode mode,
     shader.use();
 
     glBindFramebuffer(GL_FRAMEBUFFER, framebuffer.id);
+
+    auto& sky_color = Project::get_current()->config.sky_color;
+    glClearColor(sky_color.r, sky_color.g, sky_color.b, 0.0f);
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+
     glViewport(0, 0, framebuffer.width, framebuffer.height);
 
     // view/projection transformations

src/ui/SettingsPane.cpp

@@ -73,6 +73,7 @@ void SettingsPane::render()
         ImGui::SeparatorText("Textures");
 
         ImGui::ColorEdit3("Fallback Texture Color", &config.fallback_color[0]);
+        ImGui::ColorEdit3("Sky Color", &config.sky_color[0]);
     }
     ImGui::End();
 }