New algorithm for finite difference based on 3 points

threestudio-project / threestudio

A unified framework for 3D content generation.

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New algorithm for finite difference based on 3 points #168

Closed DSaurus closed 1 year ago

DSaurus commented 1 year ago

Rename the original calculation of finite difference as finite_difference_laplacian. The new algorithm for the finite difference is based on 3 points, resulting in reduced memory consumption and improved rendering speed.

In the dreamfusion experiments:

finite_difference_laplacian, 5.0it/s, 9500MB
finite_difference, 5.3it/s, 6800MB
analytic, 5.3it/s, 5200MB

bennyguo commented 1 year ago

LGTM!