nice idea LD, what I do is render the model on blue screen or green including the background plane then composite them later together using Blue or Green Box option depended of the colors used on the model.. sometimes I create a virtual blue or green scene from (square)walls so I get exact the shadows working as in the real video, it is funny to play with.. cath

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"Surrender to what it is - Let go of what was - Have faith in what will be "