Automatic irradiance sample placement

Hello. My background is in professional architectural visualizations. I have been studying Eevee for this purpose and I am quite pleasantly surprised by the results I can achieve with it.

One thing that is degrading the quality and slowing my workflow is irradiance volume placement. It is quite hard to manually achieve good distribution and avoid light/darkness bleed. Some irradiance samples get placed inside objects and there's not much you can do about it if you want the object to be included in the calculations.

I wish there was an automatic system to place irradiance samples to fill a volume. The system would avoid placing samples inside objects and make sure there is good coverage near surfaces and less coverage in empty space.

UE4 has at least partially something like this. You place a volume and UE4 will fill that volume automatically with samples, placing more samples close to walls and floors.

I believe it would not be too hard to implement. Simple solution would be to first generate a dense sample grid, then test each sample to see if they are inside any object and remove those. Not sure if there is an efficient way to do that though when object count is large? Density could be a bit harder, you would have to test each sample to see how far is the closest surface.