To make an aged version of the galvanized metal shader, we will have to make some changes and create some custom textures. Let's start by looking at a reference photo. As you can see, the reflective flakes are still there, but they are duller. The Diffuse color seems to be some shade of gray or blue. Start by reducing the reflections…
Shellac is a type of wood finish that is usually applied by hand. It can be quite reflective, but it is different from sprayed lacquer. Sprayed and polished lacquer is perfectly smooth, like glass, while shellac has a bit of a texture to it. Look at the reference photo below and notice the reflections; they are not completely sharp and…
A basic plastic material is one of the simplest shaders to create. What you need is a Diffuse color, Fresnel Reflections (IOR in the 1.45~2.4 range, since various plastics can have different IOR's), and a simple Bump map to break up the artificially smooth look. Here's the setup: Bump is actually a mix of two differently-sized Noise maps to create…
IntroductionThe VrayBlendMtl could be best described as an utility material. It does not have any shading options, it just combines multiple other shaders in different ways. The layout is simple. You have a Base material and 9 Coat materials. In fact, they all function in the same way, very similar to layers in photoshop, so really what you get is…
With chipped paint, you are actually looking at 2 different materials: base and coat. The base can be wood, metal, plastic, etc. The coat is paint that could be glossy or matte. When the coat gets scratched, chipped, or otherwise damaged, you can see the base in those areas. Here is a nice reference photo of painted wood: Start by…
A basic, unfinished wood material is quite simple. All you need to understand is the growth rings, and how they usually affect the appearance of wood. Most trees have darker, denser grain lines or lighter, softer grain lines. The darker ones are usually slightly deeper than the surface and they are also harder, which makes them more reflective and more…
Let's make a more extreme example of the slightly worn shellac, based on this reference photo: There is dirt on the surface of the object, so add that to the Diffuse map. The color of the wood itself is a bit less intense and somewhat faded. Increase the contrast for the Reflection map and add some of the details from…
This tutorial focuses on a more worn material, similar to this reference photo. The main differences from the base material are: dirt and patina along the edges; patchier glossiness variations; and wear like spots, smudges, scratches and dents. For faster renders, you can work on a single layered material (just drag-and-drop an instance of your VrayBlend Base material into a…
To make this oiled wood look older, we are going to modify the Diffuse map. It needs more dirt, spots, scratches, etc. Start with this image: Add a random image of dirt on a new layer, set it to Multiply, and reduce the opacity. Add some spots on a new layer, and make this one Multiply as well (most of…
Let's make our brand new wood a bit more interesting. To add some patina to the wood, VrayDirt is just what we need. Change the Bitmap in the Diffuse slot to VrayDirt and place the texture in the Unoccluded color slot. Increase the Radius a bit and double the Subdivs value to get a noise-free result. It's a bit weak…
