Closed sebmavro closed 1 year ago
Hi, the visibility of a set of 3D points is not well defined, i.e., it is ambiguous to tell if a point is visible or not. This is due to noise, non-uniform distribution (and especially missing regions caused by occlusions) of the points. See further discussion in this CVPR paper. Because of this, visualizing a point cloud with transparency may not look natural (though it is possible). This is the reason that it is not implemented in easy3d.
Hi, thanks for your quick response and for the very interesting paper. I understand that the general case can be difficult to handle. There will be no real ambiguity for the scene I want to visualize. The two models (cloud and surface) are like stacked one on top of the other. I'll try to give to the AverageColorBlending class :
I hope this will be quite ok ... let's see tomorrow! Thank you and have a nice day.
Hello, First of all, thank you for this very nice work. I wonder if it is possible to easily get a transparency rendering between a point cloud and a triangulated surface? For example, I would like to visualize a point cloud "wrapped" in a surface mesh... The tutorial on transparency shows how to proceed for a set of triangulated surfaces only. I tried to assign a color with an alpha component to the vertices of my surface but it doesn't seem to work ... I feel like I'm "missing" something simple ... or not ... Can you give me some advice? Have a nice day.