I haven’t made much progress on my investigation of BDPT and this is because of a lot of factors including the university , the pressure from the real world , lazyness… But I managed to implement a better scene parser and a blender scene-export script .Here’s a couple of test renders i did during the last two months (all of these images are rendered with path tracing except the first two) , i hope you like them 
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Wooow ! Wonderful !
Thanks Odi
! How are you doing by the way ?