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What is the concept of ambient occlusion when rendering in Max?
Rendering Ambient Occlusion (AO) is a key component in your final render and is often part of the many rendering passes. Not only is it great to use in conjunction with other rendering passes but it also looks pretty great by itself and can often be used to represent a model’s wireframe.
Which is better SSAO or HBAO?
HBAO results in less incorrect shadowing than SSAO, but it’s sometimes too pronounced (it’s even darker than SSAO in some areas), especially around grass, leaves and flowers. As for the impact on the framerate, it’s virtually identical to SSAO on AMD cards, and even very slightly faster than SSAO on Nvidia cards.
Is HBAO better than HDAO?
H*AO offers better quality but with an increased performance hit. SSAO is less accurate but improves image quality with a much smaller performance penalty. If you’re going to use H*AO, from what I understand you should select HDAO if you have an ATI card or HBAO if you have an nVIDIA card.
Is there need for ambient occlusion in principled shader?
$begingroup$ Without knowing all the sufficient information, the only correct answer would be: There is no need for Ambient Occlusion in the Principled Shader, because it defines the material and not the object’s interaction with light.
What does ambient occlusion do to a scene?
Ambient occlusion is a technique used in production to approximate the effect of environment lighting. Unlike the dull, flat look of local lighting models, ambient occlusion can add realism to a scene by accentuating small surface details and adding soft shadows.
Is the world AO effect an ambient light?
Cycles does not really have an ambient light, at least not one that accepts pre-cache occlusion data. (the world AO effect is technically an ambient lamp, but it is the only one, and as of 2.79 it always samples its own occlusion on the fly, never from a texture). Since there is no ambient light, shaders have no need to define shading for it.
Do you need to define shading for ambient light?
Since there is no ambient light, shaders have no need to define shading for it. If you want to use AO data for mesh-dependent texturing effects, you should do these while authoring the texture, that way you do not need to load a separate AO map at render time. Use this node setup, setting up AO in principled is the same as any other node.