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Camera Tracking – lens distortion issue » Bartek Skorupa. Blender Position Pass. The solution of mine is as follows: What I will get from this is an image where RED channel represents X position in blender units, GREEN is Y position on blender units and BLUE is Z position in blender units.

Blender Position Pass.

I set material to override all of the materials and make it node material. Set up of nodes is as follows: Unfortunately all negative values are by default clipped, so I added 100 (I think that this is enough) to all channels.Then in compositing we have to subtract previously added value, so the setup would be as follows: The resulting image will be "position pass" where R is X position, G is Y position and B is Z position. 2.5D relighting in compositing with Blender (using spherical harmonics)Francois Tarlier's blog. Introduction About a year ago, I was watching a great presentation at the Nuke Master Class by Roy Stelzer (2D TD at Double Negative) about “2.5D Relighting inside of Nuke”.

2.5D relighting in compositing with Blender (using spherical harmonics)Francois Tarlier's blog

There is 3 videos which you can download from The Foundry and also files which goes with. I recommend you to watch those videos especially if you are not familiar with relighting in post-production. Apprendre Blender #01 Présentation de la formation.