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Blender is a powerful open-source tool for 2D and 3D graphics, full-on animation, compositing, and post-production. It is used to create movies and special effects, even in HD. In Blender Essential Training, Roger Wickes offers new Blender users a thorough explanation of its interface, tools, and features. He also demonstrates practical techniques and shows how to access the online and openndash;content resources of this amazing tool. Specific 3D techniques covered include navigating in 3D space, using cameras and lights, and rendering. Roger demonstrates how to rig, animate, and composite a character over live action. Exercise files accompany the course.
In this video, we're going to talk about converting a mesh, and rendering a mesh instead of a series of flat shaded surfaces, rendering them as Halos. So, if you open up the Halo file and render, then you'll get an image something like this. And this is where we've taken this globe, and in the Material settings, we've enabled Halo and a couple of things changed at that point. One is a lot of the controls here, in the Material panel change, to where you have control over the color of the Halo itself, which is gray over here.
The color of any Lines, if they're enabled and we're going to go ahead and enable Lines here and so now you can see the Lines, if you rerender. And the lines are like little sparkles that come out from the inside of the Halo. And then finally the color of any Rings. So let's set the Rings to like to say a Blue color and enable some rings around the Halo as well. So, by combining these effects, and changing the Size of the Halo, you can get some pretty, wild, little designs going on.
And this is all based on this sphere and just converting this to Halos. The Shaders. Instead of that normal kind of shaders that we have, you have the Halo Shader, which I guess is a sixth kind of a shader. And under Halo Size, reflects the size and the dimension of the Halo. And then the Hardness reflects how crisp or well defined the halo is. Higher values of Hardness, higher values of Density, if you will, of the light and the point source in the halo. So, at very low Hardness, it gives a soft light, and at very high hardness, it gives a point light.
Now, Halos are really cool by themselves. But you can also use them to fake a glint that comes off a very high shiny surface, by compositing them over like the image of a record or a gold coin, or somebody's teeth or something like that. The number of Rings, and the number of Lines is controlled here and if you use the Star shape, the number of stars that come out, are shown here. You can also use an extended kind of an Alpha, to give a very long effect on the Halo, almost providing like a glowing energy orb, if you will.
And you can use Color Rams as well to affect the color of the Halo across its dimension. So, that's a little bit about the Halos that are available in Blender, as a special kind of lighting and shading technique.
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