diff --git a/navipy/resources/configs/BlenderRender.yaml b/navipy/resources/configs/BlenderRender.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..bc2090abf05b325b9ecbb4c3c153ab768a82a91b
--- /dev/null
+++ b/navipy/resources/configs/BlenderRender.yaml
@@ -0,0 +1,17 @@
+#
+# Default configuration file used by BlendRenderer
+#
+
+BlenderRender:
+  fov:
+  - min_elevation: -90
+  - max_elevation: 90
+  - min_azimuth: -180
+  - max_azimuth: 180
+  resolution:
+  - nbpx_azimtuh: 360
+  - nbpx_elevation: 180
+  gaussian:
+  - gaussian_width: 1.5
+  cycle:
+  - samples: 30
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diff --git a/todo b/todo
index c072d18683019c20eb97c925d53b2bde322c3c9a..8f05d85bb3fb93dc49ef2b63a83763909b78cde4 100644
--- a/todo
+++ b/todo
@@ -1,35 +1,3 @@
-0001: Work on mcode.py
-   1. Create a new branch (mcode) to work on this (We need to learn how to use those :) )
-	- see : https://www.atlassian.com/git/tutorials/using-branches/git-merge
-   2. processing/mcode should contains method based on optic flow
-   	- write geometrical_optic_flow(scene, viewing_directions, posorient_vel):
-               See the matlab optic flow toolbox of the lab / the stuff you wrote a while ago :)
-	       scene, viewing_directions -> processing/pcode/pcv
-               posorient_vel should be a pandas series with 'x','y',... 'dx','dy', .... see moving/agent
-   	- write emd_hasenstein_reichardt(scene, prev_response, filters_cutoff)
-               See Egelhaaf 1989
-	       Should only work for ibpc
-        - write emd_barlow_lewick(scene, prev_response, filters_cutoff)
-	       See 
-   3. write test functions (like always :) )
-        - for geometrical optc flow
-		- yaw only -> no el optic flow 
-                           -> az optic flow is prop to sin(el)
-                - pitch only -> min optic flow at az=+/- 90deg, el=0
-                - ....
-                - forward x -> min forward/backward, max on the sides. 
-   4. merge branch mcode with master 
-
-0002: Update the doc, massively with 
-  Scheduled : 11/12 of January
-
-0003: Write a new rendering module based on Panda3D (branch panda3d). 
-
-0004: Write network like code function (branch ncode)
-   0. Think on code structure (trying to avoid massive formating)
-   1. Familiarity network of Bart Baddeley (2012)
-   2. Haffenbach (1987)
-   3. Ring-attractor (Goldschmidt 2017)
-   4. Ring-attractor (Stone 2017)
-
-0005: Change output of comparing to be consistent with place code
\ No newline at end of file
+blendrender_traj:
+* check how to call exec function with blendnavipy wrapper
+* write configuration default file for rendere, and explain how to use it. 
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