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Explore the world of modeling and texturing 3D game props and assets in Autodesk Maya. Author Adam Crespi provides strong technical modeling techniques, from blocking basic forms and leveraging simple parts and reusable textures, to simulating real-world detail like dirt, wear, and grain with UV maps and ambient occlusion. The course includes workflow and integration considerations such as planning UV space for projection, and also steps into Mudbox and Unity for further refinement.
With my bump in place, I'm ready to start on the color. It's really up to you which one you're going to paint first: color or bump, or even specular. I started with the bump because there are things I need there, such as the ribs, trim, and vents, that having the bump in makes it easy to select the color. Ultimately, if there are colors you need in there to be able to select and make the bump from them, go ahead and do it that way. As long as you end up with both, it's really not a big deal. What I'll do now is to look at the reference and see how to paint this and what layers I'm going to need.
I'll go into the gas station reference I've got, and there's that pump. I'll zoom in. And it looks like I need a couple of things to start. This pump at one time was hopefully a nice-looking red. It was red on the sides and the top, with a white front, but a red panel right in the middle, so I need to make sure I establish those parts in separate layers so that I can scratch and degrade them correctly. The red paint has been very thoroughly rubbed or scratched off right here. On the side then, I'm also going to need layers for rust.
There are places where the paint has worn away, and then there's rust on the surface. The same goes for the top, which having been fully exposed to the elements, is thoroughly rusty. Then I'll need layers in the diffuse channel for things like the writing and other markings. And finally, I need to make the light and if there's any screws. Sometimes things like screws are better shown simply as a bump; they're so small they really register as slight dots more then anything else. I'm also going to add in a slightly different texture for the base.
I'll need to make sure this shows up in the bump as well, and I can go back and do that easily with a couple of quick lines. What this means here in my PSD is I'm going to make some layers as part of my planning process. It's a good idea to think through not only how did this look when it was clean, but how did it get dirty or worn? When I saved out that PSD, I had turned on my color and specular layer so I didn't get an error in Maya. I'll turn them off and now turn off that bump layer as well, turning on the color and opening it up. I am going to rename layer 1 to base color, and I'm probably going to make this maybe a little more vibrant.
I'll come in later and start to fade it out. I'll press Ctrl+U and just crank up the saturation a touch. It's a good vibrant, warm red. Here are the layers I know I am going to need. I'll make one new layer and I'll rename this to white panel. I'll make another new layer and rename this to red front. By the way, if you find you don't like staying over at the right side of the screen, grab the Layers palette and tear it off, open it up. What I've also done here to make it easier to see is I've dropped down on the Layer menu flyout and gone into the Panel Options.
In the options I've made my thumbnails big. I like to be able to see what I'm doing here. There is the white panel with a red front and now a separate layer in here we'll call Dials. This will do for now, at least in the base color. I also I'm going to need some rust layers. I'll call these first one Rust skim, a light coating of rust in places that I'll paint first. Then I'll put in another layer here called Rust bubbles. This one will be the more pronounced rust. It's a good idea to kind of think through the parts you need.
Remember that things get worn and degraded over time, and so we need to plan our layers to build up like that, rather than simply trying to paint it all at once. With these in place now, I'll start in on the painting, getting the clean colors in and then scratching them up.
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