Occlusion Blurr kernel issue

[Gianluca Tomasello]

I think I have found something while playing with occlusion on mesoscale explorer.
There is a strange halo on darker points of the canvas that disappears disabling occlusion blurring

Blur kernel size: 3

Blur kernel size: 1

[Gianluca Tomasello]

It seems also related to Multiscale occlusion

[Alexander Rose]

Hmm, not sure where this is coming from. It is not from multi-scale. If you switch it of and set radius to 12.5 you get it too. It might be because we are reconstructing normals from depth and screen position.

[ludovic autin]

looks like its not only a normal issue ( I tried the more accurate calculation from https://gist.github.com/bgolus/a07ed65602c009d5e2f753826e8078a0) . Its seems to be rather the ssao-blur, and especially the depth threshold and its test. Have a look at the patch :
ssaopatch.patch

[Gianluca Tomasello]

Hi @corredD,

Thanks, I tested the patch and it solves the issue.

@arose I have also noticed that the new accurate normal calculation produces a nicer occlusion effect that is more noticeable on smaller scale. Here is the difference