diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 8b20433..7a9cabd 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -13,3 +13,6 @@ add_executable(script2txt ${script2txt_src})
 
 file(GLOB mmp_extractor_src "mmp_extractor/*")
 add_executable(mmp_extractor ${mmp_extractor_src})
+
+file(GLOB mod_converter_src "mod_converter/*")
+add_executable(mod_converter ${mod_converter_src})
diff --git a/src/mod_converter/mod_converter.cpp b/src/mod_converter/mod_converter.cpp
new file mode 100644
index 0000000..370e5cd
--- /dev/null
+++ b/src/mod_converter/mod_converter.cpp
@@ -0,0 +1,72 @@
+/*
+ * AIM mod_converter
+ * Copyright (C) 2015 lzwdgc
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <algorithm>
+#include <fstream>
+#include <iostream>
+#include <map>
+#include <set>
+#include <stdio.h>
+#include <stdint.h>
+#include <string>
+
+using namespace std;
+
+#include "model.h"
+
+model read_model(string fn)
+{
+    model m;
+    FILE *f = fopen(fn.c_str(), "rb");
+    if (!f)
+        return m;
+    try
+    {
+        m.load(f);
+    }
+    catch (std::exception &e)
+    {
+        printf("error: %s\n", fn.c_str());
+        printf("%s\n", e.what());
+        return m;
+    }
+    auto p = ftell(f);
+    fseek(f, 0, SEEK_END);
+    auto end = ftell(f);
+    if (p != ftell(f))
+    {
+        printf("error: %s\n", fn.c_str());
+        printf("     : %x != %x\n", p, end);
+    }
+    fclose(f);
+    return m;
+}
+
+int main(int argc, char *argv[])
+{
+#ifdef NDEBUG
+    if (argc != 2)
+    {
+        cout << "Usage:\n" << argv[0] << " model_file" << "\n";
+        return 1;
+    }
+    read_model(argv[1]);
+#else
+#endif
+    return 0;
+}
diff --git a/src/mod_converter/mod_converter.py b/src/mod_converter/mod_converter.py
new file mode 100644
index 0000000..07f4699
--- /dev/null
+++ b/src/mod_converter/mod_converter.py
@@ -0,0 +1,24 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+import argparse
+import os
+import subprocess
+
+def main():    
+    parser = argparse.ArgumentParser(description='Batch models converter')
+    parser.add_argument('--dir', dest='dir', help='path to directory with models')
+    pargs = parser.parse_args()
+
+    if pargs.dir:
+        run(pargs.dir)
+
+def run(dir):
+    for file in os.listdir(dir):
+        if os.path.isdir(file):
+            continue
+        p = subprocess.Popen(['mod_converter.exe', file])
+        p.communicate()
+
+if __name__ == '__main__':
+    main()
diff --git a/src/mod_converter/model.cpp b/src/mod_converter/model.cpp
new file mode 100644
index 0000000..10431c5
--- /dev/null
+++ b/src/mod_converter/model.cpp
@@ -0,0 +1,191 @@
+/*
+ * AIM mod_converter
+ * Copyright (C) 2015 lzwdgc
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "model.h"
+
+#include <string>
+
+#define FREAD(var) fread(&var, 1, sizeof(var), f)
+#define SREAD(var) s.read(&var, sizeof(var))
+#define SREAD_N(var, sz) s.read(&var, sz)
+
+void vertex::load(s_file &s, uint32_t flags)
+{
+    SREAD(vX);
+    SREAD(vZ);
+    SREAD(vY);
+
+    if (flags & F_WIND)
+        SREAD(wind);
+    
+    SREAD(nX);
+    SREAD(nZ);
+    SREAD(nY);
+    
+    SREAD(t1);
+    SREAD(t2);
+}
+
+void fragment::load(FILE *f)
+{
+    FREAD(type);
+    FREAD(name0);
+    FREAD(name1);
+    FREAD(name2);
+    FREAD(name3);
+    FREAD(name4);
+    FREAD(unk0);
+    FREAD(unk1);
+    FREAD(unk2);
+    FREAD(unk3);
+    FREAD(size);
+    FREAD(unk4);
+    data.resize(size);
+    data_offset = ftell(f);
+    fread(data.data(), 1, size, f);
+}
+
+bool fragment::extract()
+{
+    s_file s(data, data_offset);
+    
+    SREAD(n_segments);
+    segments.resize(n_segments);
+    SREAD(header);
+    SREAD(triangles_mult_7);
+    SREAD(unk10);
+    SREAD(flags);
+    SREAD(n_vertex);
+    vertices.resize(n_vertex);
+    SREAD(n_triangles);
+    if (triangles_mult_7)
+        n_triangles *= 7;
+    triangles.resize(n_triangles);
+    for (auto &v : vertices)
+        v.load(s, flags);
+    for (auto &t : triangles)
+        SREAD(t);
+
+    for (auto &seg : segments)
+    {
+        uint32_t type;
+        SREAD(type);
+        switch (type)
+        {
+        case 1:
+            seg = new segment1;
+            break;
+        case 2:
+            seg = new segment2;
+            break;
+        case 6:
+            seg = new segment6;
+            break;
+        default:
+            throw std::logic_error("unknown segment type " + std::to_string(type));
+        }
+        seg->type = type;
+        seg->extract(s);
+    }
+
+    return s.eof();
+}
+
+void segment1::extract(s_file &s)
+{
+    SREAD(name);
+    SREAD(unk0);
+    triangles.resize(unk0[0][0]);
+    unk1.resize(unk0[0][0]);
+    for (int i = 0; i < 2; i++)
+    {
+        for (auto &t : triangles)
+            SREAD(t);
+        for (auto &unk: unk1)
+            SREAD(unk);
+    }
+}
+
+void segment2::extract(s_file &s)
+{
+    SREAD(name);
+    SREAD(unk0);
+    triangles.resize(unk0[0][0]);
+    unk1.resize(unk0[0][0]);
+    unk1_1.resize(unk0[0][0]);
+    for (auto &t : triangles)
+        SREAD(t);
+    for (auto &unk : unk1)
+        SREAD(unk);
+    for (auto &unk : unk1_1)
+        SREAD(unk);
+    while (!s.eof())
+    {
+        repeater r;
+        r.extract(s);
+        unk2.push_back(r);
+    }
+}
+
+void segment2::repeater::extract(s_file &s)
+{
+    SREAD(unk2);
+    triangles2.resize(unk2);
+    SREAD(unk8);
+    SREAD(unk3);
+    for (auto &t : triangles2)
+        SREAD(t);
+    SREAD(unk6);
+    SREAD(flags);
+    SREAD(n_vertex);
+    vertices.resize(n_vertex);
+    SREAD(n_triangles);
+    triangles.resize(n_triangles);
+    for (auto &v : vertices)
+        v.load(s, flags);
+    for (auto &t : triangles)
+        SREAD(t);
+}
+
+void segment6::extract(s_file &s)
+{
+    SREAD(name);
+    SREAD(unk0);
+    triangles.resize(unk0[0][0]);
+    for (int i = 0; i < 1; i++)
+    {
+        for (auto &t : triangles)
+            SREAD(t);
+        char unk1[0x30]; // some 6 floats
+        for (int i = 0; i < unk0[0][0]; i++)
+            SREAD(unk1);
+    }
+}
+
+void model::load(FILE *f)
+{
+    FREAD(n_fragments);
+    FREAD(header);
+    fragments.resize(n_fragments);
+    for (int i = 0; i < fragments.size(); i++)
+    {
+        fragments[i].load(f);
+        if (!fragments[i].extract())
+            throw std::logic_error("extraction error: fragment #" + std::to_string(i));
+    }
+}
diff --git a/src/mod_converter/model.h b/src/mod_converter/model.h
new file mode 100644
index 0000000..48c736b
--- /dev/null
+++ b/src/mod_converter/model.h
@@ -0,0 +1,188 @@
+/*
+ * AIM mod_converter
+ * Copyright (C) 2015 lzwdgc
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <vector>
+
+struct s_file
+{
+    uint32_t index = 0;
+    const std::vector<uint8_t> &buf;
+    uint8_t *ptr;
+    uint32_t data_offset;
+
+    s_file(const std::vector<uint8_t> &buf, uint32_t data_offset)
+        : buf(buf), data_offset(data_offset)
+    {}
+    uint32_t read(void *dst, uint32_t size)
+    {
+        if (index >= buf.size())
+            throw std::logic_error("s_file: out of range");
+        if (index + size > buf.size())
+            size = buf.size() - index;
+        memcpy(dst, buf.data() + index, size);
+        skip(size);
+        return size;
+    }
+    void skip(int n)
+    {
+        index += n;
+        data_offset += n;
+        ptr = (uint8_t *)buf.data() + index;
+    }
+    bool eof() const
+    {
+        return index == buf.size();
+    }
+};
+
+enum
+{
+    F_WIND  =   0x4,
+};
+
+struct vertex
+{
+    float vX;
+    float vZ;
+    float vY;
+
+    float wind;
+
+    float nX;
+    float nZ;
+    float nY;
+
+    float t1;
+    float t2;
+
+    void load(s_file &s, uint32_t flags);
+};
+
+typedef uint16_t triangle;
+
+struct unk_float3x4
+{
+    float unk[4][3];
+};
+
+struct unk_float6
+{
+    float unk[6];
+};
+
+struct segment
+{
+    uint32_t type;
+
+    virtual void extract(s_file &s) = 0;
+};
+
+struct segment1 : public segment
+{
+    char name[0xC];
+    uint32_t unk0[4][3];
+    std::vector<triangle> triangles;
+    std::vector<unk_float3x4> unk1;
+    
+    virtual void extract(s_file &s);
+};
+
+struct segment2 : public segment
+{
+    struct repeater
+    {
+        uint32_t unk2;
+        float unk8[3];
+        char unk3[0x3C];
+        std::vector<uint16_t> triangles2;
+        uint8_t unk6;
+        uint32_t flags;
+        uint32_t n_vertex;
+        uint32_t n_triangles;
+        std::vector<vertex> vertices;
+        std::vector<uint16_t> triangles;
+        
+        virtual void extract(s_file &s);
+    };
+
+    char name[0xC];
+    uint32_t unk0[4][3];
+    std::vector<triangle> triangles;
+    std::vector<unk_float6> unk1;
+    std::vector<unk_float6> unk1_1;
+    std::vector<repeater> unk2;
+    
+    virtual void extract(s_file &s);
+};
+
+struct segment6 : public segment1
+{
+    virtual void extract(s_file &s);
+};
+
+struct fragment
+{
+    // main header
+    uint32_t type;
+    char name0[0x20];
+    char name1[0x20];
+    char name2[0x20];
+    char name3[0x20];
+    char name4[0x20];
+    uint32_t unk0;
+    uint32_t unk1;
+    uint32_t unk2[2];
+    uint32_t unk3;
+    uint32_t size;
+    uint32_t unk4[10];
+
+    // data buffer
+    std::vector<uint8_t> data;
+
+    // main data
+    uint32_t n_segments;
+    char header[0x68];
+    uint32_t triangles_mult_7;
+    char unk10[0x20];
+    uint32_t flags;
+    uint32_t n_vertex;
+    uint32_t n_triangles;
+    std::vector<vertex> vertices;
+    std::vector<uint16_t> triangles;
+
+    // segments
+    std::vector<segment *> segments;
+
+    // internal vars
+    uint32_t data_offset;
+
+    void load(FILE *f);
+    bool extract();
+};
+
+struct model
+{
+    int n_fragments;
+    char header[0x40];
+    std::vector<fragment> fragments;
+
+    void load(FILE *f);
+};