Open wen-yuan-zhang opened 7 months ago
Hey. Can you tell me what excatly radii>0
represent for specific viewpoint. If I have map of 3D Gaussians, for specific viewpoint, what would radii
value of 0 mean? With radii > 0
which information can we infer? Can we tell about how many Gaussians are in view frustum for that viewpoint or something else? I am confused about this mask.
@zParquet any update?
I believe the radii
parameter represents the radiance of a specific Gaussian distribution. If radii > 0
, it indicates that this Gaussian distribution is "visible" from a particular viewpoint. Otherwise, it is considered invisible and can be ignored during rendering.
@robofar The explanation from @Xzzit is right. radii>0
means that this Gaussian is inside the viewpoint, otherwise is outside the viewpoint (the corresponding rgb image).
@zParquet and @Xzzit thank you
I have already known that I can use
radii>0
to filter the gaussians which project onto a certain view. However, I want to know which gaussians contribute to a certain rendering? Or, which gaussians can receive grads after backpropagating during once rendering? Are there any interfaces about this? A similar issue was #159, but I am not familiar with cuda and I cannot well understand it...