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SuLvXiangXin / zipnerf-pytorch

Unofficial implementation of ZipNeRF
Apache License 2.0
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Rendering at different resolutions #67

Closed zhiwenfan closed 11 months ago

zhiwenfan commented 11 months ago

Hi, thanks for open-source such wonderful code base! I was wondering why the renderings are quite different when I set the rendering resolution differently? Specifically, when I train at 1k resolution, and render on 1k(see the left figure), eveything looks fine. However, when I render at 4k resolution (still use the 1k checkpoint), the results turns much darker (see the right figure).

From my viewpoint, mipnerf/zipnerf can be trained with different resolutions. So the rendering at different resolutions should be also fine?

Do you have any idea why this happens? Thanks.

image

zhiwenfan commented 11 months ago

Mipnerf family seems scale-dependent. . https://github.com/google/mipnerf/issues/15 Can the current repo trained with multiple resolution to solve this problem?