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TRI-ML / sdflabel

Official PyTorch implementation of CVPR 2020 oral "Autolabeling 3D Objects With Differentiable Rendering of SDF Shape Priors"

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Rendering backface of the discs

magistri opened this issue · comments

commented

Hi,
thanks for sharing the implementation. I have a short question.

Are discs rendered on both sides or are they rendered only when looking at their top face? (like in common mesh visualization)

commented

Hi @magistri,
I apologize for the delay! In our implementation you can filter points using back-face culling since we analytically compute normals by computing a derivative of SDF with respect to input point locations. Alternatively, you can use an HPR operator as described in here. If both options are disabled, you'll be rendering discs on both sides.