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The open-source 3D graphics suite Blender now offers Cycles, a rendering engine that adds a new degree of realism and professionalism to your projects. In this course, George Maestri introduces Cycles, and reviews its lighting types, materials, and render settings. Learn how to layer shaders, enhance surfaces with texture and gloss, and add lifelike lighting and shadows to your scenes. In the final chapter, follow along with a small, self-contained project, where a simple architectural interior will be rendered.
So at this point we're pretty close to being done with our lighting of our scene. We've got four basic light sources. Now let's just go back over these. We've got an environmental lighting. We also have a Spot Light, which is simulating the sun. We have some lights that are projecting on the wall and then a Soft Box to give a good overall general lighting. Now in order to finalize this, one of the things we can do is add in our Ambient Occlusion.
So I can go over to my World tab here and under Ambient Occlusion, we can just click that on. And you can see how this scene immediately lights up. We really don't want it to be that bright, so we can certainly change some parameters around. Now we've got two parameters; one is the Factor, which is how much of the scene is ambient lighting. And the other one is for the length of the rays. In other words, how long before it bounces. So if we bring this number up, it will reduce the amount of light in the scene.
And we can also change this Factor a little bit to bring that down. So I'm going to bring my Rays up to about 100 and my Factor down about .15 or so is a good additional bit of lighting just to kind of smooth out the scene. Now as you start adding in stuff like ambient lighting and all this other lighting, you're going to start to get a little bit more detail in your Viewport Render. We can certainly change this here by going into our Render Settings and coming down to our Sampling.
I've had my Preview set at 10, but if you want you can bring it up a little bit-- maybe let's say 25--and that will give you a little bit more realistic render in your Viewport. Of course that's going to take a little bit more time. Be careful with this number; you can adjust it up or down depending upon how fast your system is and how complex your scene is. So now that we have all of this set, we can start doing our final rendering which we'll do next.
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