ShichenLiu / SoftRas

Project page of paper "Soft Rasterizer: A Differentiable Renderer for Image-based 3D Reasoning"

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Cannot converge with only RGB information

pyni opened this issue · comments

commented

Hi~
i have tried to do pose optimization with your code.
i find a strange case that, if i use the mask of the rendered image (images[0][3, :,:]), it converges successfully.
But if i use RGB information of rendered image (images[0][0:3, :,:]), it fails.
I wonder whether the code can do back propagation with only RGB data of rendered image?

Hi there,

Backprop through RGB indeed might not as effective as the masks.

commented

I see.
Thanks for quickly reply!