3D Artist
Dec
21

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Resources
Tips & Tutorials
by
The 3D Artist Team

Create perfect paint in three easy steps

Learn how to perfect your car paintwork using VRay’s CarPaintMtl

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This quick Q&A workshop will explain some of the options contained within the CarPaintMtl material and, hopefully, how to yield good results. While the CarPaintMtl may typecast itself in its name, don’t forget that its use can extend far beyond that of simply vehicles – it could prove equally useful in product design situations, for example.

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Step 1: Getting started

Create a simple test scene that includes some curved geometry in which to apply the material. We’d recommend using a basic studio light setup as opposed to an HDRI at this stage as it creates less reflection interference. Open the Material/Map Browser and navigate to the V-Ray Materials section; select VRayCarPaintMtl and it will open in your Materials palette with default settings in place. Once this is applied to the geometry, you should have something like the above image.

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Step 2: Modify the material

As you can see from the results of step 1, the material isn’t particularly attractive at first and the flakes look more like large chips. First start by changing the base colour; similar-coloured flakes tend to work best and are most like realistic metal paint. On this basis we’ve opted to use a two-tone blue combination. Apply a UVW map modifier to your object so as to aid flake mapping and begin to tweak the flake settings. The results are illustrated above, but try out a few colour schemes.

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Step 3: Get experimental

Now we have removed the flake altogether and upped the glossiness of the base coat by setting the Flake color to Black and reducing its Density to 0. In the image, we show a few more effects that can be created. The left sphere is a heavy blend between a red base coat and small yellow flakes; the central one uses a gradient base colour with yellow flakes; and the right sphere exhibits a purple coat layer, much like that found in pearlescent paint.

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Tutorial written by Ross Board for 3D Artist magazine. Printed in issue 31, available to buy now as a back issue from the official Imagine Publishing store.

All images © Imagine Publishing