diff --git a/demos/99-cubemap.c b/demos/99-cubemap.c
index e9b246f..0da6d7d 100644
--- a/demos/99-cubemap.c
+++ b/demos/99-cubemap.c
@@ -41,9 +41,13 @@ int main(int argc, char** argv) {
         }
         if( !initialized ) {
             initialized = 1;
-            sky = skybox(SKY_DIRS[SKY_DIR], 0);
+            sky = skybox(flag("--mie") ? 0 : SKY_DIRS[SKY_DIR], 0);
             mdl = model(OBJ_MDLS[OBJ_MDL], 0);
             // rotation44(mdl.pivot, 0, 1,0,0); // @fixme: -90,1,0,0 -> should we rotate SHMs as well? compensate rotation in shader?
+
+            if (flag("--mie")) {
+                skybox_mie_calc_sh(&sky);
+            }
         }
 
         // fps camera
diff --git a/engine/bind/fwk.py b/engine/bind/fwk.py
deleted file mode 100644
index 2f0c882..0000000
--- a/engine/bind/fwk.py
+++ /dev/null
@@ -1,26 +0,0 @@
-import os
-import sys
-import ctypes
-import cffi
-
-ffi = cffi.FFI()
-with open('./fwk.lua') as f:
-    lines = [line for line in f if not line.startswith('#')]
-    lines = [line for line in lines if not 'va_list' in line]
-    lines = [line for line in lines if not 'inline ' in line]
-    lines = [line for line in lines if not line.startswith('typedef union ') ]
-    lines = [line for line in lines if not '//lcpp INF' in line ]
-    data = ''.join(lines)
-    data = data[data.find('[[')+2:data.find(']]')]
-    data = '''
-    typedef struct vec2i { float x,y; } vec2i;
-    typedef struct vec3i { float x,y,z; } vec3i;
-    typedef struct vec2 { float x,y; } vec2;
-    typedef struct vec3 { float x,y,z; } vec3;
-    typedef struct vec4 { float x,y,z,w; } vec4;
-    typedef struct quat { float x,y,z,w; } quat;
-    typedef union frustum frustum;
-    typedef union json_t json_t;
-    ''' + data
-    ffi.cdef(data)
-fwk = ffi.dlopen('./fwk.dll')
diff --git a/engine/joint/v4k.h b/engine/joint/v4k.h
index 9a12b17..bb29233 100644
--- a/engine/joint/v4k.h
+++ b/engine/joint/v4k.h
@@ -341706,7 +341706,7 @@ skybox_t skybox(const char *asset, int flags) {
 }
 
 void skybox_mie_calc_sh(skybox_t *sky) {
-    unsigned WIDTH = 512, HEIGHT = 512;
+    unsigned WIDTH = 1024, HEIGHT = 1024;
     int last_fb;
     int vp[4];
     glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &last_fb);
@@ -341732,14 +341732,7 @@ void skybox_mie_calc_sh(skybox_t *sky) {
         }
     }
 
-    static vec3 directions[6] = {
-        {1.0f,  0.0f,  0.0f},
-        {-1.0f, 0.0f,  0.0f},
-        {0.0f,  1.0f,  0.0f},
-        {0.0f, -1.0f,  0.0f},
-        {0.0f,  0.0f,  1.0f},
-        {0.0f,  0.0f, -1.0f}
-    };
+    static vec3 directions[6] = {{ 1, 0, 0},{-1, 0, 0},{ 0, 1, 0},{ 0,-1, 0},{ 0, 0, 1},{ 0, 0,-1}};
 
     int samples = 0;
     for(int i = 0; i < 6; ++i) {
@@ -341747,8 +341740,8 @@ void skybox_mie_calc_sh(skybox_t *sky) {
         glViewport(0, 0, WIDTH, HEIGHT);
         glUseProgram(sky->program);
 
-        mat44 proj; perspective44(proj, 90.0f, WIDTH / (float)HEIGHT, 0.01f, 1000.f);
-        mat44 view; lookat44(view, vec3(0,0,0), directions[i], vec3(0,1,0));
+        mat44 proj; perspective44(proj, 90.0f, WIDTH / (float)HEIGHT, 0.1f, 500.f);
+        mat44 view; lookat44(view, vec3(0,0,0), directions[i], vec3(0,-1,0));
 
         skybox_render(sky, proj, view);
 
diff --git a/engine/split/v4k_render.c b/engine/split/v4k_render.c
index a953f9d..3bebe9c 100644
--- a/engine/split/v4k_render.c
+++ b/engine/split/v4k_render.c
@@ -2401,7 +2401,7 @@ skybox_t skybox(const char *asset, int flags) {
 }
 
 void skybox_mie_calc_sh(skybox_t *sky) {
-    unsigned WIDTH = 512, HEIGHT = 512;
+    unsigned WIDTH = 1024, HEIGHT = 1024;
     int last_fb;
     int vp[4];
     glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &last_fb);
@@ -2427,14 +2427,7 @@ void skybox_mie_calc_sh(skybox_t *sky) {
         }
     }
 
-    static vec3 directions[6] = {
-        {1.0f,  0.0f,  0.0f},
-        {-1.0f, 0.0f,  0.0f},
-        {0.0f,  1.0f,  0.0f},
-        {0.0f, -1.0f,  0.0f},
-        {0.0f,  0.0f,  1.0f},
-        {0.0f,  0.0f, -1.0f}
-    };
+    static vec3 directions[6] = {{ 1, 0, 0},{-1, 0, 0},{ 0, 1, 0},{ 0,-1, 0},{ 0, 0, 1},{ 0, 0,-1}};
 
     int samples = 0;
     for(int i = 0; i < 6; ++i) {
@@ -2442,8 +2435,8 @@ void skybox_mie_calc_sh(skybox_t *sky) {
         glViewport(0, 0, WIDTH, HEIGHT);
         glUseProgram(sky->program);
 
-        mat44 proj; perspective44(proj, 90.0f, WIDTH / (float)HEIGHT, 0.01f, 1000.f);
-        mat44 view; lookat44(view, vec3(0,0,0), directions[i], vec3(0,1,0));
+        mat44 proj; perspective44(proj, 90.0f, WIDTH / (float)HEIGHT, 0.1f, 500.f);
+        mat44 view; lookat44(view, vec3(0,0,0), directions[i], vec3(0,-1,0));
 
         skybox_render(sky, proj, view);
 
diff --git a/engine/v4k.c b/engine/v4k.c
index 9d4e596..1fbe36b 100644
--- a/engine/v4k.c
+++ b/engine/v4k.c
@@ -12614,7 +12614,7 @@ skybox_t skybox(const char *asset, int flags) {
 }
 
 void skybox_mie_calc_sh(skybox_t *sky) {
-    unsigned WIDTH = 512, HEIGHT = 512;
+    unsigned WIDTH = 1024, HEIGHT = 1024;
     int last_fb;
     int vp[4];
     glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &last_fb);
@@ -12640,14 +12640,7 @@ void skybox_mie_calc_sh(skybox_t *sky) {
         }
     }
 
-    static vec3 directions[6] = {
-        {1.0f,  0.0f,  0.0f},
-        {-1.0f, 0.0f,  0.0f},
-        {0.0f,  1.0f,  0.0f},
-        {0.0f, -1.0f,  0.0f},
-        {0.0f,  0.0f,  1.0f},
-        {0.0f,  0.0f, -1.0f}
-    };
+    static vec3 directions[6] = {{ 1, 0, 0},{-1, 0, 0},{ 0, 1, 0},{ 0,-1, 0},{ 0, 0, 1},{ 0, 0,-1}};
 
     int samples = 0;
     for(int i = 0; i < 6; ++i) {
@@ -12655,8 +12648,8 @@ void skybox_mie_calc_sh(skybox_t *sky) {
         glViewport(0, 0, WIDTH, HEIGHT);
         glUseProgram(sky->program);
 
-        mat44 proj; perspective44(proj, 90.0f, WIDTH / (float)HEIGHT, 0.01f, 1000.f);
-        mat44 view; lookat44(view, vec3(0,0,0), directions[i], vec3(0,1,0));
+        mat44 proj; perspective44(proj, 90.0f, WIDTH / (float)HEIGHT, 0.1f, 500.f);
+        mat44 view; lookat44(view, vec3(0,0,0), directions[i], vec3(0,-1,0));
 
         skybox_render(sky, proj, view);