diff --git a/cuburn/device_code.py b/cuburn/device_code.py
index 2c502aa..1215752 100644
--- a/cuburn/device_code.py
+++ b/cuburn/device_code.py
@@ -429,6 +429,7 @@ class PaletteLookup(PTXFragment):
         self.texref.set_address_mode(0, cuda.address_mode.CLAMP)
         self.texref.set_address_mode(1, cuda.address_mode.CLAMP)
         self.texref.set_array(dev_array)
+        self.pal = pal
 
     def call_setup(self, ctx):
         assert self.texref, "Must upload palette texture before launch!"
diff --git a/cuburn/render.py b/cuburn/render.py
index 6748613..943b348 100644
--- a/cuburn/render.py
+++ b/cuburn/render.py
@@ -98,8 +98,8 @@ class Frame(object):
         for batch_idx in range(center.nbatches):
             for time_idx in range(center.ntemporal_samples):
                 idx = time_idx + batch_idx * center.nbatches
-                time = time + filters.temporal_deltas[idx]
-                cp = self._frame.interpolate(time)
+                interp_time = time + filters.temporal_deltas[idx]
+                cp = self._frame.interpolate(interp_time)
                 cp_list.append(cp)
 
                 cp.camera = Camera(self._frame, cp, filters)
diff --git a/main.py b/main.py
index b19afa5..aadf638 100644
--- a/main.py
+++ b/main.py
@@ -16,7 +16,7 @@ from ctypes import *
 
 import numpy as np
 
-from cuburn.device_code import IterThread
+from cuburn.device_code import *
 from cuburn.cuda import LaunchContext
 from fr0stlib.pyflam3 import *
 from fr0stlib.pyflam3._flam3 import *
@@ -67,10 +67,14 @@ def main(args):
                                    anim.features.hist_stride*4)
     tex = image.texture
 
+    pal = (anim.ctx.ptx.instances[PaletteLookup].pal * 255.).astype(np.uint8)
+    image2 = pyglet.image.ImageData(256, 16, 'RGBA', pal.tostring())
+
     @window.event
     def on_draw():
         window.clear()
         tex.blit(0, 0)
+        image2.blit(0, 0)
 
     @window.event
     def on_key_press(sym, mod):