SSAO

[AlexandreGIRARD]

Add a new pass for SSAO

SSAO_Pass

2 attachaments for 2 internal passes:

• SSAO pass
• Blur pass

[AlexandreGIRARD]

Why not implement other Ambient_Occlusion algorithm:

• SSDO
• VXAO
• HBAO

[AlexandreGIRARD]

Improve performance by using the depth buffer and recontruct position and normal with it
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