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about alpha backward and supervise #12

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XCYYYYY opened this issue Nov 29, 2023 · 2 comments
Open

about alpha backward and supervise #12

XCYYYYY opened this issue Nov 29, 2023 · 2 comments

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@XCYYYYY
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XCYYYYY commented Nov 29, 2023

感谢您精彩的工作！
有个困惑是，您实现了对于depth和α的渲染，以及相应的backward cuda实现，但是如果在外层python中，如果我只做了depth的监督，而没有做α的监督，这样在loss.backward的时候会报错吗（或者会导致没被监督的α计算错误吗）？
再次感谢您精彩的工作，期待您的回复！
@ashawkey
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不会的，没有使用的grad会默认为0，没有影响

@XCYYYYY
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XCYYYYY commented Nov 30, 2023

非常感谢您的解答！
by the way 您后续有计划对GS normal的render以及backward监督的实现吗？
再次感谢！祝您科研生活顺利！

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@ashawkey @XCYYYYY