The text is a transcript of a video that explains the concept of ambient occlusion, which is the area of shadow that gets the least amount of reflected light, making it the darkest part of the shadow. The video uses examples from 3D graphics, photographs, and paintings to illustrate how ambient occlusion works in different situations and how to apply it in art. The video also distinguishes ambient occlusion from ambient light, which is the light that bounces around in shadows, and direct light, which is the light that comes from a single source like the sun. The video ends with an announcement of a live chat for Patreon supporters and a promise of a future video on how ambient light interacts with color.
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1. The term 'ambient occlusion' refers to the area of shadow that gets the least amount of reflected light, making it the darkest part of the shadow.
2. Ambient occlusion is caused by the occlusion or blocking of ambient light, which is the light that bounces around in the environment from various sources.
3. Ambient occlusion only exists in the areas where ambient light is visible, which means it is reserved for the shadows and not where direct light hits.
4. Ambient occlusion is affected by the distance and tightness of the spaces where shadows are cast. The closer and tighter the space, the more occlusion there is.
5. Ambient occlusion has a very soft and subtle effect, and it can be painted with different brush strokes and techniques depending on the style and medium.
6. Ambient occlusion can help make scenes look more realistic and natural by adding depth and contrast to the shadows.