diff --git a/res/content/base/preload.json b/res/content/base/preload.json
index be5d5bec..364813ec 100644
--- a/res/content/base/preload.json
+++ b/res/content/base/preload.json
@@ -6,5 +6,8 @@
     "models": [
         "cube",
         "item"
+    ],
+    "rigs": [
+        "drop"
     ]
 }
diff --git a/res/content/base/rigs/drop.json b/res/content/base/rigs/drop.json
new file mode 100644
index 00000000..675759f7
--- /dev/null
+++ b/res/content/base/rigs/drop.json
@@ -0,0 +1,5 @@
+{
+    "root": {
+        "model": "cube"
+    }
+}
diff --git a/res/content/base/scripts/components/drop.lua b/res/content/base/scripts/components/drop.lua
index 72acec7c..3ce24f95 100644
--- a/res/content/base/scripts/components/drop.lua
+++ b/res/content/base/scripts/components/drop.lua
@@ -1,5 +1,6 @@
 local tsf = entity.transform
 local body = entity.rigidbody
+local rig = entity.modeltree
 
 inair = true
 ready = false
diff --git a/src/assets/AssetsLoader.cpp b/src/assets/AssetsLoader.cpp
index 65f52da7..e426a8c1 100644
--- a/src/assets/AssetsLoader.cpp
+++ b/src/assets/AssetsLoader.cpp
@@ -24,13 +24,14 @@ static debug::Logger logger("assets-loader");
 AssetsLoader::AssetsLoader(Assets* assets, const ResPaths* paths) 
   : assets(assets), paths(paths) 
 {
-    addLoader(AssetType::shader, assetload::shader);
-    addLoader(AssetType::texture, assetload::texture);
-    addLoader(AssetType::font, assetload::font);
-    addLoader(AssetType::atlas, assetload::atlas);
-    addLoader(AssetType::layout, assetload::layout);
-    addLoader(AssetType::sound, assetload::sound);
-    addLoader(AssetType::model, assetload::model);
+    addLoader(AssetType::SHADER, assetload::shader);
+    addLoader(AssetType::TEXTURE, assetload::texture);
+    addLoader(AssetType::FONT, assetload::font);
+    addLoader(AssetType::ATLAS, assetload::atlas);
+    addLoader(AssetType::LAYOUT, assetload::layout);
+    addLoader(AssetType::SOUND, assetload::sound);
+    addLoader(AssetType::MODEL, assetload::model);
+    addLoader(AssetType::RIG, assetload::rig);
 }
 
 void AssetsLoader::addLoader(AssetType tag, aloader_func func) {
@@ -80,7 +81,7 @@ void addLayouts(const scriptenv& env, const std::string& prefix, const fs::path&
         if (file.extension().u8string() != ".xml")
             continue;
         std::string name = prefix+":"+file.stem().u8string();
-        loader.add(AssetType::layout, file.u8string(), name, std::make_shared<LayoutCfg>(env));
+        loader.add(AssetType::LAYOUT, file.u8string(), name, std::make_shared<LayoutCfg>(env));
     }
 }
 
@@ -89,18 +90,19 @@ void AssetsLoader::tryAddSound(const std::string& name) {
         return;
     }
     std::string file = SOUNDS_FOLDER+"/"+name;
-    add(AssetType::sound, file, name);
+    add(AssetType::SOUND, file, name);
 }
 
 static std::string assets_def_folder(AssetType tag) {
     switch (tag) {
-        case AssetType::font: return FONTS_FOLDER;
-        case AssetType::shader: return SHADERS_FOLDER;
-        case AssetType::texture: return TEXTURES_FOLDER;
-        case AssetType::atlas: return TEXTURES_FOLDER;
-        case AssetType::layout: return LAYOUTS_FOLDER;
-        case AssetType::sound: return SOUNDS_FOLDER;
-        case AssetType::model: return MODELS_FOLDER;
+        case AssetType::FONT: return FONTS_FOLDER;
+        case AssetType::SHADER: return SHADERS_FOLDER;
+        case AssetType::TEXTURE: return TEXTURES_FOLDER;
+        case AssetType::ATLAS: return TEXTURES_FOLDER;
+        case AssetType::LAYOUT: return LAYOUTS_FOLDER;
+        case AssetType::SOUND: return SOUNDS_FOLDER;
+        case AssetType::MODEL: return MODELS_FOLDER;
+        case AssetType::RIG: return RIGS_FOLDER;
     }
     return "<error>";
 }
@@ -118,7 +120,7 @@ void AssetsLoader::processPreload(
     }
     map->str("path", path);
     switch (tag) {
-        case AssetType::sound:
+        case AssetType::SOUND:
             add(tag, path, name, std::make_shared<SoundCfg>(
                 map->get("keep-pcm", false)
             ));
@@ -153,11 +155,12 @@ void AssetsLoader::processPreloadList(AssetType tag, dynamic::List* list) {
 
 void AssetsLoader::processPreloadConfig(const fs::path& file) {
     auto root = files::read_json(file);
-    processPreloadList(AssetType::font, root->list("fonts"));
-    processPreloadList(AssetType::shader, root->list("shaders"));
-    processPreloadList(AssetType::texture, root->list("textures"));
-    processPreloadList(AssetType::sound, root->list("sounds"));
-    processPreloadList(AssetType::model, root->list("models"));
+    processPreloadList(AssetType::FONT, root->list("fonts"));
+    processPreloadList(AssetType::SHADER, root->list("shaders"));
+    processPreloadList(AssetType::TEXTURE, root->list("textures"));
+    processPreloadList(AssetType::SOUND, root->list("sounds"));
+    processPreloadList(AssetType::MODEL, root->list("models"));
+    processPreloadList(AssetType::RIG, root->list("rigs"));
     // layouts are loaded automatically
 }
 
@@ -176,18 +179,18 @@ void AssetsLoader::processPreloadConfigs(const Content* content) {
 }
 
 void AssetsLoader::addDefaults(AssetsLoader& loader, const Content* content) {
-    loader.add(AssetType::font, FONTS_FOLDER+"/font", "normal");
-    loader.add(AssetType::shader, SHADERS_FOLDER+"/ui", "ui");
-    loader.add(AssetType::shader, SHADERS_FOLDER+"/main", "main");
-    loader.add(AssetType::shader, SHADERS_FOLDER+"/lines", "lines");
-    loader.add(AssetType::texture, TEXTURES_FOLDER+"/gui/menubg", "gui/menubg");
-    loader.add(AssetType::texture, TEXTURES_FOLDER+"/gui/delete_icon", "gui/delete_icon");
-    loader.add(AssetType::texture, TEXTURES_FOLDER+"/gui/no_icon", "gui/no_icon");
-    loader.add(AssetType::texture, TEXTURES_FOLDER+"/gui/no_world_icon", "gui/no_world_icon");
-    loader.add(AssetType::texture, TEXTURES_FOLDER+"/gui/warning", "gui/warning");
-    loader.add(AssetType::texture, TEXTURES_FOLDER+"/gui/error", "gui/error");
-    loader.add(AssetType::texture, TEXTURES_FOLDER+"/gui/cross", "gui/cross");
-    loader.add(AssetType::texture, TEXTURES_FOLDER+"/gui/refresh", "gui/refresh");
+    loader.add(AssetType::FONT, FONTS_FOLDER+"/font", "normal");
+    loader.add(AssetType::SHADER, SHADERS_FOLDER+"/ui", "ui");
+    loader.add(AssetType::SHADER, SHADERS_FOLDER+"/main", "main");
+    loader.add(AssetType::SHADER, SHADERS_FOLDER+"/lines", "lines");
+    loader.add(AssetType::TEXTURE, TEXTURES_FOLDER+"/gui/menubg", "gui/menubg");
+    loader.add(AssetType::TEXTURE, TEXTURES_FOLDER+"/gui/delete_icon", "gui/delete_icon");
+    loader.add(AssetType::TEXTURE, TEXTURES_FOLDER+"/gui/no_icon", "gui/no_icon");
+    loader.add(AssetType::TEXTURE, TEXTURES_FOLDER+"/gui/no_world_icon", "gui/no_world_icon");
+    loader.add(AssetType::TEXTURE, TEXTURES_FOLDER+"/gui/warning", "gui/warning");
+    loader.add(AssetType::TEXTURE, TEXTURES_FOLDER+"/gui/error", "gui/error");
+    loader.add(AssetType::TEXTURE, TEXTURES_FOLDER+"/gui/cross", "gui/cross");
+    loader.add(AssetType::TEXTURE, TEXTURES_FOLDER+"/gui/refresh", "gui/refresh");
     if (content) {
         loader.processPreloadConfigs(content);
 
@@ -206,8 +209,8 @@ void AssetsLoader::addDefaults(AssetsLoader& loader, const Content* content) {
             addLayouts(pack->getEnvironment(), info.id, folder, loader);
         }
     }
-    loader.add(AssetType::atlas, TEXTURES_FOLDER+"/blocks", "blocks");
-    loader.add(AssetType::atlas, TEXTURES_FOLDER+"/items", "items");
+    loader.add(AssetType::ATLAS, TEXTURES_FOLDER+"/blocks", "blocks");
+    loader.add(AssetType::ATLAS, TEXTURES_FOLDER+"/items", "items");
 }
 
 bool AssetsLoader::loadExternalTexture(
diff --git a/src/assets/AssetsLoader.hpp b/src/assets/AssetsLoader.hpp
index 91eb1036..29a23428 100644
--- a/src/assets/AssetsLoader.hpp
+++ b/src/assets/AssetsLoader.hpp
@@ -20,13 +20,14 @@ namespace dynamic {
 }
 
 enum class AssetType {
-    texture,
-    shader,
-    font,
-    atlas,
-    layout,
-    sound,
-    model,
+    TEXTURE,
+    SHADER,
+    FONT,
+    ATLAS,
+    LAYOUT,
+    SOUND,
+    MODEL,
+    RIG,
 };
 
 class ResPaths;
diff --git a/src/assets/assetload_funcs.cpp b/src/assets/assetload_funcs.cpp
index 0fd5a36d..690422cb 100644
--- a/src/assets/assetload_funcs.cpp
+++ b/src/assets/assetload_funcs.cpp
@@ -18,6 +18,7 @@
 #include "../graphics/core/Font.hpp"
 #include "../graphics/core/Model.hpp"
 #include "../graphics/core/TextureAnimation.hpp"
+#include "../objects/rigging.hpp"
 #include "../frontend/UiDocument.hpp"
 #include "../constants.hpp"
 
@@ -216,7 +217,7 @@ assetload::postfunc assetload::model(
             for (auto& mesh : model->meshes) {
                 if (mesh.texture.find('$') == std::string::npos) {
                     auto filename = TEXTURES_FOLDER+"/"+mesh.texture;
-                    loader->add(AssetType::texture, filename, mesh.texture, nullptr);
+                    loader->add(AssetType::TEXTURE, filename, mesh.texture, nullptr);
                 }
             }
             assets->store(std::unique_ptr<model::Model>(model), name);
@@ -227,6 +228,27 @@ assetload::postfunc assetload::model(
     }
 }
 
+assetload::postfunc assetload::rig(
+    AssetsLoader* loader,
+    const ResPaths* paths,
+    const std::string& file,
+    const std::string& name,
+    const std::shared_ptr<AssetCfg>&
+) {
+    auto path = paths->find(file+".json");
+    auto text = files::read_string(path);
+    try {
+        auto rig = rigging::RigConfig::parse(text, path.u8string()).release();
+        return [=](Assets* assets) {
+            // TODO: add models loading
+            assets->store(std::unique_ptr<rigging::RigConfig>(rig), name);
+        };
+    } catch (const parsing_error& err) {
+        std::cerr << err.errorLog() << std::endl;
+        throw;
+    }
+}
+
 static void read_anim_file(
     const std::string& animFile,
     std::vector<std::pair<std::string, int>>& frameList
diff --git a/src/assets/assetload_funcs.hpp b/src/assets/assetload_funcs.hpp
index 71b3cb93..cad64d32 100644
--- a/src/assets/assetload_funcs.hpp
+++ b/src/assets/assetload_funcs.hpp
@@ -18,49 +18,56 @@ namespace assetload {
         AssetsLoader*,
         const ResPaths* paths,
         const std::string& filename,
-        const std::string &name,
+        const std::string& name,
         const std::shared_ptr<AssetCfg>& settings
     );
     postfunc shader(
         AssetsLoader*,
         const ResPaths* paths,
         const std::string& filename,
-        const std::string &name,
+        const std::string& name,
         const std::shared_ptr<AssetCfg>& settings
     );
     postfunc atlas(
         AssetsLoader*,
         const ResPaths* paths, 
-        const std::string &directory,
-        const std::string &name,
+        const std::string& directory,
+        const std::string& name,
         const std::shared_ptr<AssetCfg>& settings
     );
     postfunc font(
         AssetsLoader*,
         const ResPaths* paths,
         const std::string& filename,
-        const std::string &name,
+        const std::string& name,
         const std::shared_ptr<AssetCfg>& settings
     );
     postfunc layout(
         AssetsLoader*,
         const ResPaths* paths,
         const std::string& file,
-        const std::string &name,
+        const std::string& name,
         const std::shared_ptr<AssetCfg>& settings
     );
     postfunc sound(
         AssetsLoader*,
         const ResPaths* paths,
         const std::string& file,
-        const std::string &name,
+        const std::string& name,
         const std::shared_ptr<AssetCfg>& settings
     );
     postfunc model(
         AssetsLoader*,
         const ResPaths* paths,
         const std::string& file,
-        const std::string &name,
+        const std::string& name,
+        const std::shared_ptr<AssetCfg>& settings
+    );
+    postfunc rig(
+        AssetsLoader*,
+        const ResPaths* paths,
+        const std::string& file,
+        const std::string& name,
         const std::shared_ptr<AssetCfg>& settings
     );
 }
diff --git a/src/coders/json.cpp b/src/coders/json.cpp
index dbe42b5a..b3b3d1ea 100644
--- a/src/coders/json.cpp
+++ b/src/coders/json.cpp
@@ -238,11 +238,11 @@ Value Parser::parseValue() {
     throw error("unexpected character '"+std::string({next})+"'");
 }
 
-dynamic::Map_sptr json::parse(const std::string& filename, const std::string& source) {
+dynamic::Map_sptr json::parse(std::string_view filename, std::string_view source) {
     Parser parser(filename, source);
     return parser.parse();
 }
 
-dynamic::Map_sptr json::parse(const std::string& source) {
+dynamic::Map_sptr json::parse(std::string_view source) {
     return parse("<string>", source);
 }
diff --git a/src/coders/json.hpp b/src/coders/json.hpp
index f4379fdc..7dc7b92e 100644
--- a/src/coders/json.hpp
+++ b/src/coders/json.hpp
@@ -9,8 +9,8 @@
 #include <string>
 
 namespace json {
-    dynamic::Map_sptr parse(const std::string& filename, const std::string& source);
-    dynamic::Map_sptr parse(const std::string& source);
+    dynamic::Map_sptr parse(std::string_view filename, std::string_view source);
+    dynamic::Map_sptr parse(std::string_view source);
 
     std::string stringify(
         const dynamic::Map* obj,
diff --git a/src/constants.hpp b/src/constants.hpp
index 76c13a74..022fa955 100644
--- a/src/constants.hpp
+++ b/src/constants.hpp
@@ -50,5 +50,6 @@ inline const std::string FONTS_FOLDER = "fonts";
 inline const std::string LAYOUTS_FOLDER = "layouts";
 inline const std::string SOUNDS_FOLDER = "sounds";
 inline const std::string MODELS_FOLDER = "models";
+inline const std::string RIGS_FOLDER = "rigs";
 
 #endif // CONSTANTS_HPP_
diff --git a/src/objects/Entities.cpp b/src/objects/Entities.cpp
index 512f7213..9df28497 100644
--- a/src/objects/Entities.cpp
+++ b/src/objects/Entities.cpp
@@ -36,7 +36,8 @@ entityid_t Entities::spawn(EntityDef& def, glm::vec3 pos, dynamic::Value args) {
     auto id = nextID++;
     registry.emplace<EntityId>(entity, static_cast<entityid_t>(id), def);
     registry.emplace<Transform>(entity, pos, size, glm::mat3(1.0f));
-    auto& body = registry.emplace<Rigidbody>(entity, true, Hitbox {pos, def.hitbox}, std::vector<Trigger>{});
+    auto& body = registry.emplace<Rigidbody>(
+        entity, true, Hitbox {pos, def.hitbox}, std::vector<Trigger>{});
     for (auto& box : def.triggers) {
         body.triggers.emplace_back(Trigger{true, id, box, AABB{}, {}, {},
         [=](auto entityid, auto index, auto otherid) {
@@ -140,7 +141,8 @@ void Entities::updatePhysics(float delta) {
         hitbox.linearDamping = hitbox.grounded * 24;
         transform.setPos(hitbox.position);
         if (hitbox.grounded && !grounded) {
-            scripting::on_entity_grounded(*get(eid.uid), glm::length(prevVel-hitbox.velocity));
+            scripting::on_entity_grounded(
+                *get(eid.uid), glm::length(prevVel-hitbox.velocity));
         }
         if (!hitbox.grounded && grounded) {
             scripting::on_entity_fall(*get(eid.uid));
diff --git a/src/objects/Entities.hpp b/src/objects/Entities.hpp
index 91fe106c..0e0982a3 100644
--- a/src/objects/Entities.hpp
+++ b/src/objects/Entities.hpp
@@ -77,7 +77,12 @@ class Entity {
     entt::registry& registry;
     const entt::entity entity;
 public:
-    Entity(Entities& entities, entityid_t id, entt::registry& registry, const entt::entity entity)
+    Entity(
+        Entities& entities,
+        entityid_t id, 
+        entt::registry& registry, 
+        const entt::entity entity
+    )
     : entities(entities), id(id), registry(registry), entity(entity) {}
 
     EntityId& getID() const {
diff --git a/src/objects/EntityDef.hpp b/src/objects/EntityDef.hpp
index 3db361b0..5c4293c0 100644
--- a/src/objects/EntityDef.hpp
+++ b/src/objects/EntityDef.hpp
@@ -8,6 +8,10 @@
 #include "../typedefs.hpp"
 #include "../maths/aabb.hpp"
 
+namespace rigging {
+    class RigConfig;
+}
+
 struct EntityDef {
     /// @brief Entity string id (with prefix included)
     std::string const name;
@@ -15,9 +19,11 @@ struct EntityDef {
     std::string scriptName = name.substr(name.find(':')+1);
     glm::vec3 hitbox {0.5f};
     std::vector<AABB> triggers {};
+    std::string rigName = name.substr(name.find(":")+1);
     
     struct {
         entityid_t id;
+        rigging::RigConfig* rig;
     } rt {};
     
     EntityDef(const std::string& name) : name(name) {}
diff --git a/src/objects/rigging.cpp b/src/objects/rigging.cpp
index 9b6cd14f..4d08548d 100644
--- a/src/objects/rigging.cpp
+++ b/src/objects/rigging.cpp
@@ -1,10 +1,89 @@
 #include "rigging.hpp"
 
+#include "../assets/Assets.hpp"
+#include "../graphics/core/Model.hpp"
+#include "../coders/json.hpp"
+
 using namespace rigging;
 
-RigNode::RigNode(size_t index, std::string name, std::vector<std::unique_ptr<RigNode>> subnodes)
-  : index(index), name(std::move(name)), subnodes(std::move(subnodes)) {
+RigNode::RigNode(
+    size_t index, 
+    std::string name, 
+    std::string model,
+    std::vector<std::unique_ptr<RigNode>> subnodes)
+  : index(index), 
+    name(std::move(name)),
+    modelName(model),
+    subnodes(std::move(subnodes)) 
+{}
+
+void RigNode::setModel(const Assets* assets, const std::string& name) {
+    modelName = name;
+    model = assets->get<model::Model>(name);
 }
 
 RigConfig::RigConfig(std::unique_ptr<RigNode> root) : root(std::move(root)) {
 }
+
+size_t RigConfig::update(
+    size_t index, 
+    Rig& rig, 
+    RigNode* node, 
+    glm::mat4 matrix) 
+{
+    rig.calculated.matrices[index] = matrix * rig.pose.matrices[index];
+    index++;
+    for (auto& subnode : node->getSubnodes()) {
+        index = update(index, rig, subnode.get(), rig.calculated.matrices[index]);
+    }
+    return index;
+}
+
+void RigConfig::update(Rig& rig, glm::mat4 matrix) {
+    update(0, rig, root.get(), matrix);
+}
+
+void RigConfig::setup(const Assets* assets, RigNode* node) {
+    if (node == nullptr) {
+        setup(assets, root.get());
+    } else {
+        node->setModel(assets, node->getModelName());
+        for (auto& subnode : node->getSubnodes()) {
+            setup(assets, subnode.get());
+        }
+    }
+}
+
+static std::tuple<size_t, std::unique_ptr<RigNode>> read_node(
+    dynamic::Map* root, size_t index
+) {
+    std::string name;
+    std::string model;
+    root->str("name", name);
+    root->str("model", model);
+    std::vector<std::unique_ptr<RigNode>> subnodes;
+    size_t count = 1;
+    if (auto nodesList = root->list("nodes")) {
+        for (size_t i = 0; i < nodesList->size(); i++) {
+            if (auto map = nodesList->map(i)) {
+                auto [subcount, subNode] = read_node(map, index+count);
+                subcount += count;
+                subnodes.push_back(std::move(subNode));
+            }
+        }
+    }
+    return {index, std::make_unique<RigNode>(index, name, model, std::move(subnodes))};
+}
+
+std::unique_ptr<RigConfig> RigConfig::parse(
+    std::string_view src,
+    std::string_view file
+) {
+    auto root = json::parse(file, src);
+    auto rootNodeMap = root->map("root");
+    if (rootNodeMap == nullptr) {
+        throw std::runtime_error("missing 'root' element");
+    }
+    auto [count, rootNode] = read_node(root.get(), 0);
+    return std::make_unique<RigConfig>(std::move(rootNode));
+}
diff --git a/src/objects/rigging.hpp b/src/objects/rigging.hpp
index 717aef87..ed084f27 100644
--- a/src/objects/rigging.hpp
+++ b/src/objects/rigging.hpp
@@ -9,6 +9,12 @@
 #include <glm/glm.hpp>
 #include <unordered_map>
 
+class Assets;
+
+namespace model {
+    struct Model;
+}
+
 namespace rigging {
     struct Rig;
 
@@ -19,9 +25,21 @@ namespace rigging {
     class RigNode {
         size_t index;
         std::string name;
+        std::string modelName;
         std::vector<std::unique_ptr<RigNode>> subnodes;
+        model::Model* model = nullptr;
     public:
-        RigNode(size_t index, std::string name, std::vector<std::unique_ptr<RigNode>> subnodes);
+        RigNode(
+            size_t index, 
+            std::string name,
+            std::string model,
+            std::vector<std::unique_ptr<RigNode>> subnodes);
+
+        void setModel(const Assets* assets, const std::string& name);
+
+        const std::string& getModelName() const {
+            return modelName;
+        }
 
         size_t getIndex() const {
             return index;
@@ -36,13 +54,28 @@ namespace rigging {
         std::unique_ptr<RigNode> root;
         std::unordered_map<std::string, size_t> indices;
         std::vector<RigNode*> nodes;
+
+        size_t update(
+            size_t index,
+            Rig& rig,
+            RigNode* node,
+            glm::mat4 matrix);
     public:
         RigConfig(std::unique_ptr<RigNode> root);
+
+        void update(Rig& rig, glm::mat4 matrix);
+        void setup(const Assets* assets, RigNode* node=nullptr);
+
+        static std::unique_ptr<RigConfig> parse(
+            std::string_view src,
+            std::string_view file
+        );
     };
 
     struct Rig {
         RigConfig* config;
         Pose pose;
+        Pose calculated;
         std::vector<std::string> textures;
     };
 };