Working with materials in V-Ray for SketchUp

[Music] hey there welcome back to our next video on getting started with v-ray for SketchUp today we're going to explore the various methods to create materials in v-ray be sure to download the project files Linked In the description so you can practice with the scene at your own pace before we start it's good to know that v-ray is going to render any materials you've already made in SketchUp let's right click on the material tab in the v-ray asset Editor to select the type of material we want to create here you can see all the material types v-ray offers let's go with generic for now and you'll see it appear in our list this generic v-ray material is super versatile and acts as a base for most of the materials we'll create today it's great for mimicking a wide range of surfaces from Plastics to Metals glass and more double-click on the new material to give it a name this keeps our files tidy then select an object from your scene right click and apply the material we just created our first v-ray material click on the right side of the screen to open the right fly out menu here we can tweak the material properties and see a preview of how it will look let's explore its parameters first up we have diffuse which is basically the main color of the material in the real world all objects reflect light to some extent so let's add some Reflections from the reflections tab by default the reflections are set to a black color meaning there are no Reflections making it white will greatly increase the reflections okay now we can see the reflections we can control how sharp these Reflections are by adjusting the reflection glossiness if we reduce it to something like 0.85 the reflections will become much blurrier now we've created a basic plastic Shader let's continue by making a new generic material and learn how to create a simple metal Shader the first thing to understand about Metals is that their appearance mostly comes from the reflections this means we set the diffuse to pure black and crank up the reflections to White [Music] but it doesn't look quite right yet to get that shiny metal effect we need to turn on reflection ior and increase it to around eight ior stands for index of refraction which is different for each real world material this makes the reflections brighter and gives us the metallic look however to achieve a more matte finish we can reduce the reflection glossiness slightly now let's look at another way to create a realistic metal effect in reality ior values are close to one as we can see in this table by sticking to these values we can create a metal material that is physically closer to how real world Metals look create a new generic material give it a name and apply it set the reflection color to Pure White for high reflectivity now let's increase the metalness parameter to one the effect is very similar to our previous Chrome material but this time we're not dramatically increasing the reflection ior to soften Reflections we can reduce the glossiness but for this workflow we usually use another parameter the reflection roughness it works similarly but in Reverse so to achieve the same result we need to reduce the roughness quite a bit from 0.8 for glossiness to 0.2 for roughness this will have the same sharpness or blurriness now we can use the diffuse color as a base color or so-called Albedo and we can really easily create gold or copper for example in the upper right corner I've linked a useful article where you can learn more about this process and see a table with real world examples on how to create physically accurate materials like gold or aluminum up next we'll create a glass material usually glass materials don't have a diffuse color so we can switch it to Black and then make it highly reflective also change the refraction color to white in the refraction tab just like Reflections a black color in the refraction means the material won't be refractive if it's white it'll be super refractive let's apply that and see the outcome great we just made our first glass material let's check out other parameters here these options simulate the fact that thick objects look less transparent than thin ones to reduce the effect the depth parameter can be increased note that the fog color effect depends on the absolute size of the objects and is dependent on the scene to make the glass look like frosted glass we can reduce the refraction glossiness this blurs the refractions just like with the reflections of course it wouldn't make sense to have frosted glass with sharp reflections so we should also reduce the glossiness let's return to the table material what if we want to add texture instead of just a color click on the Square next to the diffuse color and select the map type you need in this video we'll only focus on two types the first is the bitmap we will now load a texture from our computer I'll use a wood texture okay it looks like wood but the reflections are too perfect it looks like a picture of wood not like actual wood with surface structure to add this we can use the wood texture for the bump slot in that definitely looks more bumpy so we need to reduce the effect we can do that by adjusting the slider below or entering a number let's try 0.1 that looks much better and notice how the bumpiness affects the reflections too now we have a more realistic look next up let's create a fabric material let's start by adding a diffuse texture for a better preview in the Swatch we can select the type of material preview from the drop down there are several types but we'll go with fabric apply the texture and see how it looks if you want more control over the texture we can wrap it with the color correction from here we can adjust its color saturation brightness contrast and more let's also add a bump texture and see the result alright it definitely looks like fabric now but something is still missing real fabric often has a specific glossy effect to recreate that let's switch to advanced mode for this video we'll focus on just one parameter the sheen layer this adds a glossy layer that gives us that fabric feel the color controls the sheen layers color while the sheen glossiness controls how shiny the fabric appears reducing this value can make it look more like velvet or satin we'll keep it in the middle once we're happy with the material it's a good idea to rename the textures in the asset Editor to keep things tidy okay now we know how to create some common materials this will help us to modify already existing ones like those from chaos Cosmos plus we can learn from them by checking their properties first let's import a metal material as mentioned before we can learn a lot by looking at how different materials are made for instance this metal material includes textures not just in the diffuse slot but in the reflection slot too the white color in the reflection implies a more reflective surface the texture in the reflection can help us easily specify different levels of reflections this is similar to the reflection glossiness where some parts of the material can have sharper Reflections things like dust scratches or other imperfections can be mimicked let's apply this texture if you're having a hard time positioning the texture on a complex shape you can just enable the try planner option in Cosmos this will neatly project the texture let's also check out a wood material here again we see that textures are not only placed in the diffuse slot but also in the reflection and reflection glossiness slots and if we add a fabric material we can see it's created in a very similar way with Textures in the diffuse bump and Sheen layer slots one more thing to remember before we finish is that we can control the size of the materials not only from the SketchUp material tab but also from v-ray if we expand the cosmos material in the asset editor you will see that the size and rotation of all Textures in the material are controlled from a single uvw placement essentially the v-ray uvw placement texture works as a custom mapping source that can be shared between different textures I hope you found this video on shading in v-ray for SketchUp interesting and useful be sure to check out the other getting started with v-ray videos see you there

Channel: ChaosTV

Views: 11,008

Keywords: V-ray 6 for sketchup, chaos v-ray, how to vray, archviz, architectural rendering software, 3d rendering software, vray, sketchup, enmesh, chaos cosmos, sketchup rendering, learn vray, rendering tutorial, archviz rendering tutorials, vray rendering, vray tutorial, archviz tutorial, how to

Id: SGq7GK0J640

Length: 9min 52sec (592 seconds)

Published: Sat Sep 02 2023