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Questions tagged [ssao]

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130 views

What is the "kernel" in learnopengl SSAO tutorial?

I am currently reading the SSAO tutorial on learnopengl. In it, there is a "kernel" that has the dimension of 64 and contains ...
1 vote
0 answers
40 views

Using SSAO For Blended Objects

What is the best (most common) approach using SSAO with forward renderer for blended objects?
1 vote
1 answer
265 views

SSAO with reconstructed depths yields strip artifacts

I wrote an ssao algorithm with compute shaders and view-position-reconstruction from the depth buffer. It works great for objects near by but results in strip or banding artifacts for large planes ...
0 votes
2 answers
287 views

Ambient occlusion depth buffer normalization

Been trying to follow a shader from A Comparative Study of Screen-Space Ambient Occlusion Methods http://frederikaalund.com/wp-content/uploads/2013/05/A-Comparative-Study-of-Screen-Space-Ambient-...
0 votes
2 answers
233 views

Why wasn't CryTek SSAO multiplied by 2?

Screen space ambient occlusion https://learnopengl.com/Advanced-Lighting/SSAO "Because the sample kernel used was a sphere, it caused flat walls to look gray as half of the kernel samples end up ...
0 votes
0 answers
56 views

Obtaining sample position z value when using positions from depth buffer for SSAO

I was looking to implement SSAO; demonstrated on learnopeng (https://learnopengl.com/Advanced-Lighting/SSAO). While I have implemented the way they have done it i.e using a position texture for ...
1 vote
0 answers
58 views

Why Screen Space effects flicker?

Nowadays is less of an issue, i think SS got massaged a little bit, but you can still spot it. These happen with SS Reflections, SSAO and Bloom. When you move the camera, the effect starts to flciker ...
0 votes
1 answer
475 views

SSAO - artifacts appearing

I am trying to implement SSAO using DirectX11 but instead I got white screen with few black dots on model. My suspect is that kernel generation or usage might be wrong. I've tried changing order of ...
0 votes
1 answer
342 views

SSAO random noise vector generation

I am currently trying to implement SSAO on my graphics engine. I am following John Chapman's tutorial here. This is a pretty popular article that is used as reference in many SSAO articles. The part ...