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Update volrend.py #271

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Dec 14, 2023
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Update volrend.py #271

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5 changes: 4 additions & 1 deletion nerfacc/volrend.py
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ def rendering(
rgb_alpha_fn: Optional[Callable] = None,
# rendering options
render_bkgd: Optional[Tensor] = None,
expected_depths: bool = True,
) -> Tuple[Tensor, Tensor, Tensor, Dict]:
"""Render the rays through the radience field defined by `rgb_sigma_fn`.

Expand All @@ -49,6 +50,7 @@ def rendering(
ray indices} and returns the post-activation rgb (..., 3) and opacity
values (...,). The shape `...` is the same as the shape of `t_starts`.
render_bkgd: Background color. Tensor with shape (3,).
expected_depths: If True, return the expected depths. Else, the accumulated depth is returned.

Returns:
Ray colors (n_rays, 3), opacities (n_rays, 1), depths (n_rays, 1) and a dict
Expand Down Expand Up @@ -150,7 +152,8 @@ def rendering(
ray_indices=ray_indices,
n_rays=n_rays,
)
depths = depths / opacities.clamp_min(torch.finfo(rgbs.dtype).eps)
if expected_depths:
depths = depths / opacities.clamp_min(torch.finfo(rgbs.dtype).eps)

# Background composition.
if render_bkgd is not None:
Expand Down