diff --git a/CMakeLists.txt b/CMakeLists.txt
index 23c6afb..ade9f38 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,62 +1,72 @@
 cmake_minimum_required(VERSION 3.29)
 
-# cmake options
-set(CMAKE_CXX_COMPILER clang++)
-set(CMAKE_CXX_CLANG_TIDY clang-tidy)
-
-set(CMAKE_CXX_STANDARD 20)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-set(CMAKE_SKIP_RPATH ON)
-set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
-
 if(CMAKE_BUILD_TYPE STREQUAL "Release")
     add_definitions("-DLSFG_NO_DEBUG")
 endif()
 
 # subprojects
+set(CMAKE_SKIP_RPATH ON)
+
 include(cmake/FetchDXVK.cmake)
 include(cmake/FetchPeParse.cmake)
 
-add_subdirectory(lsfg-vk-gen)
+add_subdirectory(lsfg-vk-v3.1)
 
 # main project
 project(lsfg-vk
     VERSION 0.0.1
-    DESCRIPTION "lsfg-vk: LSFG on Linux through Vulkan"
+    DESCRIPTION "LSFG on Linux"
     LANGUAGES CXX)
 
 file(GLOB SOURCES
-    "src/utils/*.cpp"
+    "src/extract/*.cpp"
     "src/mini/*.cpp"
+    "src/utils/*.cpp"
     "src/*.cpp"
 )
 
 add_library(lsfg-vk SHARED ${SOURCES})
 
+# target
+set_target_properties(lsfg-vk PROPERTIES
+    CXX_STANDARD 20
+    CXX_STANDARD_REQUIRED ON)
 target_include_directories(lsfg-vk
     PRIVATE include)
 target_link_libraries(lsfg-vk
-    PRIVATE lsfg-vk-gen vulkan)
-target_compile_options(lsfg-vk PRIVATE
-    -Weverything
-    # disable compat c++ flags
-    -Wno-pre-c++20-compat-pedantic
-    -Wno-pre-c++17-compat
-    -Wno-c++98-compat-pedantic
-    -Wno-c++98-compat
-    # disable other flags
-    -Wno-missing-designated-field-initializers
-    -Wno-shadow         # allow shadowing
-    -Wno-switch-enum    # ignore missing cases
-    -Wno-switch-default # ignore missing default
-    -Wno-padded         # ignore automatic padding
-    -Wno-exit-time-destructors # allow globals
-    -Wno-global-constructors   # allow globals
-    # required for vulkan
-    -Wno-cast-function-type-strict
-)
+    PRIVATE lsfg-vk-v3.1 peparse dxvk vulkan)
 
+# diagnostics
+if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+    set_target_properties(lsfg-vk PROPERTIES
+        EXPORT_COMPILE_COMMANDS ON)
+endif()
+
+if(LSFGVK_EXCESS_DEBUG)
+    message(STATUS "LSFGVK_EXCESS_DEBUG is only compatible with clang")
+    target_compile_options(lsfg-vk PRIVATE
+        -Weverything
+        # disable compat c++ flags
+        -Wno-pre-c++20-compat-pedantic
+        -Wno-pre-c++17-compat
+        -Wno-c++98-compat-pedantic
+        -Wno-c++98-compat
+        # disable other flags
+        -Wno-missing-designated-field-initializers
+        -Wno-shadow         # allow shadowing
+        -Wno-switch-enum    # ignore missing cases
+        -Wno-switch-default # ignore missing default
+        -Wno-padded         # ignore automatic padding
+        -Wno-exit-time-destructors # allow globals
+        -Wno-global-constructors   # allow globals
+        -Wno-cast-function-type-strict # for vulkan
+    )
+
+    set_target_properties(lsfg-vk PROPERTIES
+        CXX_CLANG_TIDY clang-tidy)
+endif()
+
+# install
 install(FILES "${CMAKE_BINARY_DIR}/liblsfg-vk.so"
     DESTINATION lib)
 install(FILES "${CMAKE_SOURCE_DIR}/VkLayer_LS_frame_generation.json"
diff --git a/lsfg-vk-v3.1/CMakeLists.txt b/lsfg-vk-v3.1/CMakeLists.txt
index dad352d..d6cb670 100644
--- a/lsfg-vk-v3.1/CMakeLists.txt
+++ b/lsfg-vk-v3.1/CMakeLists.txt
@@ -36,7 +36,6 @@ if(CMAKE_BUILD_TYPE STREQUAL "Debug")
 endif()
 
 if(LSFGVK_EXCESS_DEBUG)
-    message(STATUS "LSFGVK_EXCESS_DEBUG is only compatible with clang")
     target_compile_options(lsfg-vk-v3.1 PRIVATE
         -Weverything
         # disable compat c++ flags
diff --git a/src/context.cpp b/src/context.cpp
index 9b5d05e..91b0c2a 100644
--- a/src/context.cpp
+++ b/src/context.cpp
@@ -1,4 +1,6 @@
 #include "context.hpp"
+#include "extract/extract.hpp"
+#include "extract/trans.hpp"
 #include "layer.hpp"
 #include "utils/log.hpp"
 #include "utils/utils.hpp"
@@ -12,10 +14,20 @@ LsContext::LsContext(const Hooks::DeviceInfo& info, VkSwapchainKHR swapchain,
         VkExtent2D extent, const std::vector<VkImage>& swapchainImages)
         : swapchain(swapchain), swapchainImages(swapchainImages),
           extent(extent) {
+    // read environment variables
+    const char* lsfgFlowScaleStr = getenv("LSFG_FLOW_SCALE");
+    const float flowScale = lsfgFlowScaleStr
+        ? std::stof(lsfgFlowScaleStr)
+        : 1.0F;
+
+    const char* lsfgHdrStr = getenv("LSFG_HDR");
+    const bool isHdr = lsfgHdrStr
+        ? *lsfgHdrStr == '1'
+        : false;
 
     // we could take the format from the swapchain,
     // but honestly this is safer.
-    const VkFormat format = getenv("LSFG_HDR") == nullptr
+    const VkFormat format = isHdr
         ? VK_FORMAT_R8G8B8A8_UNORM
         : VK_FORMAT_R16G16B16A16_SFLOAT;
 
@@ -53,19 +65,26 @@ LsContext::LsContext(const Hooks::DeviceInfo& info, VkSwapchainKHR swapchain,
     }
 
     // initialize lsfg
-    const uint64_t deviceUUID = Utils::getDeviceUUID(info.physicalDevice);
-    setenv("LSFG_DEVICE_UUID", std::to_string(deviceUUID).c_str(), 1);
-
     Log::debug("context", "(entering LSFG initialization)");
     setenv("DISABLE_LSFG", "1", 1);
-    LSFG::initialize();
+    Extract::extractShaders();
+    LSFG::initialize(
+        Utils::getDeviceUUID(info.physicalDevice),
+        isHdr, 1.0F / flowScale, info.frameGen,
+        [](const std::string& name) {
+            auto dxbc = Extract::getShader(name);
+            auto spirv = Extract::translateShader(dxbc);
+            return spirv;
+        }
+    );
     unsetenv("DISABLE_LSFG");
     Log::debug("context", "(exiting LSFG initialization)");
 
+    // create lsfg context
     Log::debug("context", "(entering LSFG context creation)");
     this->lsfgCtxId = std::shared_ptr<int32_t>(
-        new int32_t(LSFG::createContext(extent.width, extent.height,
-            frame_0_fd, frame_1_fd, out_n_fds)),
+        new int32_t(LSFG::createContext(frame_0_fd, frame_1_fd, out_n_fds,
+            extent, format)),
         [](const int32_t* id) {
             Log::info("context",
                 "(entering LSFG context deletion with id: {})", *id);