Gadgetory


All Cool Mind-blowing Gadgets You Love in One Place

What the Heck Is Ambient Occlusion?!

2017-03-13
have you ever wondered what this setting actually does it's often overlooked because its name is somewhat misunderstood or just not understood at all so let's break it down ambient means immediately surrounding and occlusion means blockage I'll combine the two ambient occlusion for gaming is defined as the point by point technique by which object exposure is calculated with respect to immediate surroundings think of it as a shading technique in games without ambient occlusion and Mabel's shadows are only generated by objects blocking light from a particular directional source like the Suns is noticeable especially outside in games without these shadows games would seem very unrealistic but ambient occlusion is a more subdued technique that doesn't necessarily involve light direction here's an example in this frame the left model represents a scenario without a Oh the right with both appear realistic that the left model seems overexposed and lacks a bit of contrast whereas the right accentuates even the finest details through the use of additional shading but here's the catch the extra shading isn't the result of the directional light source pay close attention to both of their heads the shadows they yield imply a light source shining in this direction and the model on the Left feature shadows accurately generated as a result all over the face but the right model takes things a step further it also features shadows generated by itself what I mean by that is that the creases and abrupt changes in the shape of the model's face are also producing shadows very small shadows but enough to enhance the models textural details and that's kind of the point of ambient occlusion while tessellation seeks to physically alter and improve structural accuracy and 3-dimensional ISM enabling ambient occlusion generate shadows produced by the tessellation itself not necessarily the directional light source the technique uses ambient light hence the name and immediate changes in space to produce shadows that aren't necessarily amplified by a directional source you can actually mimic this effect by tinkering with contrast levels which will accentuate those slightly darker tones but the two are not directly related you can however experiment with AO and games like GTA 5 which let you turn it on and off with a single click I actually encourage you to do that I think you will see a difference AO or SSAO can actually have profound impacts on visual detail without slicing into your framerate your results of course will vary depending on hard we're and the game in question but ambient occlusion isn't something you should just ignore in the graphical settings panel do let me know what you think about ambient occlusion let me know if you like this style video and if you let you see more of them in the future you know the routine thumbs up thumbs down subscribe if you haven't already and I will catch you in the next video this is Salazar studio thanks for learning with us
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.