Fix NaNs in rasterizeTopContributingGaussianIdsForward weights
#400
+1
−1
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I was finding that
rasterizeTopContributingGaussianIdsForwardduring training could occasionally produce NaNs in its returned weights. Logically I don't understand how a condition like this could be reached, but initializing the output weights to zeros (instead oftorch::empty), mitigates this issue.