When I click f12 the texture of my 3D object become like this. If I missed something please tell me. I'm newbie at motion track. It'll help a lot thanks :)

  • $\begingroup$ There is not enough information on the question to answer. Please use the edit link at the bottom of your question (i.stack.imgur.com/lXFuK.png) and add more information. We don't know how you set up your project, or the materials or compositing. $\endgroup$ – user1853 May 21 '18 at 13:46
  • $\begingroup$ Maybe related: blender.stackexchange.com/questions/108790/… $\endgroup$ – user1853 May 21 '18 at 15:55

You enabled option shadow catcher. The shadow catcher is a specific option, used typically on floor planes in order to 'catch' shadows from lighting within the scene. It is useful for integrating a rendered object onto a photographic background.

enter image description here

You need to enable it on floor, not on object.

See also

How to use shadow catcher


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