From the course: Cinema 4D R18 Essential Training: Product Visualization and Design

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What is Global Illumination?

What is Global Illumination? - CINEMA 4D Tutorial

From the course: Cinema 4D R18 Essential Training: Product Visualization and Design

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What is Global Illumination?

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- [Instructor] The light that comes directly from a light source is called direct illumination. In the real world, light bounces and is reflected by surfaces and colored light transfers from one surface to another, producing indirect illumination. Lights in Cinema 4D do not bounce and so we can use a render effect called global illumination or GI to simulate indirect illumination, to add more photorealistic lighting to the 3D scenes. However, search images are computationally more expensive and consequently, much slower to generate. Here we have a scene, completely unrelated to product visualization and we don't have any lights in here at all and what we can see, we have this cloner with a few flat polygons and some different textures on. I'm just going to hide that from the viewport for now and we've got some spheres. If we look through our camera, we've got some spheres in a studio setup. Now, as I said, there aren't any lights in this scene. So let's just take a render with the…

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