diff --git a/thermion_dart/native/include/c_api/TEngine.h b/thermion_dart/native/include/c_api/TEngine.h
new file mode 100644
index 00000000..9f313670
--- /dev/null
+++ b/thermion_dart/native/include/c_api/TEngine.h
@@ -0,0 +1,29 @@
+#ifndef _T_ENGINE_H
+#define _T_ENGINE_H
+
+#include "APIExport.h"
+#include "APIBoundaryTypes.h"
+#include "TMaterialInstance.h"
+
+#include "ResourceBuffer.hpp"
+#include "MathUtils.hpp"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+EMSCRIPTEN_KEEPALIVE TCamera *Engine_getCameraComponent(TEngine* tEngine, EntityId entityId);
+EMSCRIPTEN_KEEPALIVE TTransformManager *Engine_getTransformManager(TEngine *engine);
+EMSCRIPTEN_KEEPALIVE TRenderableManager *Engine_getRenderableManager(TEngine *engine);
+EMSCRIPTEN_KEEPALIVE TLightManager *Engine_getLightManager(TEngine *engine);
+EMSCRIPTEN_KEEPALIVE TEntityManager *Engine_getEntityManager(TEngine *engine);
+
+EMSCRIPTEN_KEEPALIVE TMaterial *Engine_buildMaterial(TEngine *tEngine, const uint8_t* materialData, size_t length);
+EMSCRIPTEN_KEEPALIVE void Engine_destroyMaterial(TEngine *tEngine, TMaterial *tMaterial);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
\ No newline at end of file
diff --git a/thermion_dart/native/src/c_api/TEngine.cpp b/thermion_dart/native/src/c_api/TEngine.cpp
new file mode 100644
index 00000000..3d52ea0a
--- /dev/null
+++ b/thermion_dart/native/src/c_api/TEngine.cpp
@@ -0,0 +1,85 @@
+#include "c_api/TEngine.h"
+
+
+#include <filament/Engine.h>
+#include <filament/Material.h>
+#include <filament/Scene.h>
+#include <filament/TransformManager.h>
+#include <filament/View.h>
+
+#include "Log.hpp"
+
+#ifdef __cplusplus
+namespace thermion
+{
+    extern "C"
+    {
+        using namespace filament;
+#endif
+
+        EMSCRIPTEN_KEEPALIVE TTransformManager *Engine_getTransformManager(TEngine *tEngine)
+        {
+            auto *engine = reinterpret_cast<Engine *>(tEngine);
+            auto &transformManager = engine->getTransformManager();
+            return reinterpret_cast<TTransformManager *>(&transformManager);
+        }
+
+        EMSCRIPTEN_KEEPALIVE TRenderableManager *Engine_getRenderableManager(TEngine *tEngine)
+        {
+            auto *engine = reinterpret_cast<Engine *>(tEngine);
+            auto &renderableManager = engine->getRenderableManager();
+            return reinterpret_cast<TRenderableManager *>(&renderableManager);
+        }
+
+        EMSCRIPTEN_KEEPALIVE TLightManager *Engine_getLightManager(TEngine *tEngine)
+        {
+            auto *engine = reinterpret_cast<Engine *>(tEngine);
+            auto &lightManager = engine->getLightManager();
+            return reinterpret_cast<TLightManager *>(&lightManager);
+        }
+
+        EMSCRIPTEN_KEEPALIVE TCamera *Engine_getCameraComponent(TEngine *tEngine, EntityId entityId)
+        {
+            auto *engine = reinterpret_cast<Engine *>(tEngine);
+            auto entity = utils::Entity::import(entityId);
+            if (entity.isNull())
+            {
+                return std::nullptr_t();
+            }
+            auto *camera = engine->getCameraComponent(entity);
+            return reinterpret_cast<TCamera *>(camera);
+        }
+
+        EMSCRIPTEN_KEEPALIVE void Engine_setTransform(TEngine *tEngine, EntityId entity, double4x4 transform)
+        {
+            auto *engine = reinterpret_cast<Engine *>(tEngine);
+            auto &transformManager = engine->getTransformManager();
+
+            auto transformInstance = transformManager.getInstance(utils::Entity::import(entity));
+            if (!transformInstance.isValid())
+            {
+                Log("Transform instance not valid");
+            }
+            transformManager.setTransform(transformInstance, convert_double4x4_to_mat4(transform));
+        }
+
+        EMSCRIPTEN_KEEPALIVE TMaterial *Engine_buildMaterial(TEngine *tEngine, const uint8_t *materialData, size_t length)
+        {
+            auto *engine = reinterpret_cast<Engine *>(tEngine);
+            auto *material = Material::Builder()
+                                 .package(materialData, length)
+                                 .build(*engine);
+            return reinterpret_cast<TMaterial *>(material);
+        }
+
+        EMSCRIPTEN_KEEPALIVE void Engine_destroyMaterial(TEngine *tEngine, TMaterial *tMaterial)
+        {
+            auto *engine = reinterpret_cast<Engine *>(tEngine);
+            auto *material = reinterpret_cast<Material *>(tMaterial);
+            engine->destroy(material);
+        }
+
+#ifdef __cplusplus
+    }
+}
+#endif
diff --git a/thermion_dart/native/src/c_api/ThermionDartApi.cpp b/thermion_dart/native/src/c_api/ThermionDartApi.cpp
index a1fc5273..a0cbab85 100644
--- a/thermion_dart/native/src/c_api/ThermionDartApi.cpp
+++ b/thermion_dart/native/src/c_api/ThermionDartApi.cpp
@@ -415,7 +415,7 @@ extern "C"
 
     EMSCRIPTEN_KEEPALIVE void unproject_texture(TViewer *viewer, EntityId entity, uint8_t *input, uint32_t inputWidth, uint32_t inputHeight, uint8_t *out, uint32_t outWidth, uint32_t outHeight)
     {
-        ((FilamentViewer *)viewer)->unprojectTexture(entity, input, inputWidth, inputHeight, out, outWidth, outHeight);
+        // ((FilamentViewer *)viewer)->unprojectTexture(entity, input, inputWidth, inputHeight, out, outWidth, outHeight);
     }
 
     EMSCRIPTEN_KEEPALIVE void *const create_texture(TSceneManager *sceneManager, uint8_t *data, size_t length)
@@ -433,61 +433,5 @@ extern "C"
         ((SceneManager *)sceneManager)->destroyTexture(reinterpret_cast<Texture *>(texture));
     }
 
-    EMSCRIPTEN_KEEPALIVE TTransformManager *Engine_getTransformManager(TEngine *tEngine)
-    {
-        auto *engine = reinterpret_cast<Engine *>(tEngine);
-        auto &transformManager = engine->getTransformManager();
-        return reinterpret_cast<TTransformManager *>(&transformManager);
-    }
 
-    EMSCRIPTEN_KEEPALIVE TRenderableManager *Engine_getRenderableManager(TEngine *tEngine)
-    {
-        auto *engine = reinterpret_cast<Engine *>(tEngine);
-        auto &renderableManager = engine->getRenderableManager();
-        return reinterpret_cast<TRenderableManager *>(&renderableManager);
-    }
-
-    EMSCRIPTEN_KEEPALIVE TLightManager *Engine_getLightManager(TEngine *tEngine) {
-        auto *engine = reinterpret_cast<Engine *>(tEngine);
-        auto &lightManager = engine->getLightManager();
-        return reinterpret_cast<TLightManager *>(&lightManager);
-    }
-
-    EMSCRIPTEN_KEEPALIVE TCamera *Engine_getCameraComponent(TEngine *tEngine, EntityId entityId)
-    {
-        auto *engine = reinterpret_cast<Engine *>(tEngine);
-        auto entity = utils::Entity::import(entityId);
-        if(entity.isNull()) {
-            return std::nullptr_t();
-        }
-        auto *camera = engine->getCameraComponent(entity);
-        return reinterpret_cast<TCamera *>(camera);
-    }
-
-    EMSCRIPTEN_KEEPALIVE void Engine_setTransform(TEngine *tEngine, EntityId entity, double4x4 transform)
-    {
-        auto *engine = reinterpret_cast<Engine *>(tEngine);
-        auto &transformManager = engine->getTransformManager();
-
-        auto transformInstance = transformManager.getInstance(utils::Entity::import(entity));
-        if (!transformInstance.isValid())
-        {
-            Log("Transform instance not valid");
-        }
-        transformManager.setTransform(transformInstance, convert_double4x4_to_mat4(transform));
-    }
-
-    EMSCRIPTEN_KEEPALIVE TMaterial *Engine_buildMaterial(TEngine *tEngine, const uint8_t* materialData, size_t length) {
-        auto *engine = reinterpret_cast<Engine *>(tEngine);
-        auto *material = Material::Builder()
-                    .package(materialData, length)
-                    .build(*engine);
-        return reinterpret_cast<TMaterial*>(material);
-    }
-
-    EMSCRIPTEN_KEEPALIVE void Engine_destroyMaterial(TEngine *tEngine, TMaterial *tMaterial) { 
-        auto *engine = reinterpret_cast<Engine *>(tEngine);
-        auto *material = reinterpret_cast<Material *>(tMaterial);
-        engine->destroy(material);
-    }
 }
diff --git a/thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp b/thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp
index d901d7a6..84146dc9 100644
--- a/thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp
+++ b/thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp
@@ -6,6 +6,7 @@
 #include <filament/LightManager.h>
 
 #include "c_api/APIBoundaryTypes.h"
+#include "c_api/TEngine.h"
 #include "c_api/TView.h"
 #include "c_api/TSceneAsset.h"
 #include "c_api/TSceneManager.h"