I tried to implement the SSAO with this tutorial: https://learnopengl.com/Advanced-Lighting/SSAO, after I implemented all the code, I found that if I used SSAO on my character, though I can get the occlusion value correctly, but I can see many grids on my character like this:
This result already after the SSAO blur, and I tried to increase the sample radius, this can reduce the grid situation, but not works well with other objects:
I tried to google this issue(ssao grid) and found that some game forums talks about this issue, some games such like bf5(I think it's battle field 5) has this grid issue with SSAO feature ON.
So, my question is, is there a way we can eliminate the grid with SSAO, or I should never use SSAO on the character model, just use it on the buildings or walls, thanks in advance.
SSAO Result Texture With Grid
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